Welcome Fall

Well, sort of.  Astronomical Fall doesn’t roll around for another few weeks, but Meteorological Fall is officially here.  With the arrival of Meteorological Fall that must mean Meteorological Summer has come to end.  It certainly has, and it has done so while making history.

Meteorological Summer consists of the months June, July and August.  If you were around these parts at all during the last three months you know very well that it has been on the hot side of things.  Individually these month cracked the top ten in high temperature statistics.

The numbers you will eventually see consist of averaging the daytime high with the morning lows.

Let’s start with June.  Summer definitely got off to a quick start, and hot right off the bat for that matter.  June was hot enough to crack the top 10 for hottest June of all time.  It officially ended as the tenth hottest June of all time.  July upped June in that department.  Of course we had our extended heat wave that brought temps in the 90s and a ton of that tropical feel with it.   All of that July heat was good enough for a tie with the 4th hottest July of all time.  That leaves us with August.  It started off hot with a 90 degree day and few days close to it to follow.  But after those few hot days we had a pattern change.  We got into a “cooler” northwest flow pattern that allowed cooler air from Canada to spill into the upper midwest.  We went from the 90s to start and even got into the low 60s for a day.  We were on pace for a BELOW average August in the temperature department until our late push of heat right at the end.  We tied a record on the 29th as the 90s came back for a few days.  We ended up finishing August .1 degrees above normal thanks to that burst of heat.

All and all, officially at the Rochester Int’l Airport, where all of the climate data is kept, we saw 19 90 degree days so far.  On average we see about 9.  After crunching numbers and piecing it together with climate data from the National Weather Service, we had our second hottest meteorological Summer on record.  Here is the breakdown below.

Top 5 warmest Meteorological Summers on record (June, July, August)

 

 

If all of this is making you feel hot, here is a bonus if you want to cool down.  Here are some of the changes we will experience over the next few weeks as we head through September.  A little less daylight and knocking off about ten or so degrees from our average high and low.  Cooler days are coming.

Changes coming as we close in on Fall

 

Share

Posted under climate

This post was written by jkegges on September 2, 2012

Tags: , ,

Labor Day Weekend

 We continue our very summer-like weather pattern today as we head into the Labor Day holiday weekend, but at least temperatures are much more comfortable and our winds are not a concern as they were in the middle of the week.  A cold front passed through the area Thursday night, allowing some slightly cooler and fairly dry air into the Upper Mississippi Valley today, making for a pleasant Friday across the region.  We’re still experiencing temperatures a few degrees warmer than our climate average, but at least now it’s we’re not flirting with record heat! 

For those heading out tonight to take in some high school football, we have a summery evening ahead with warm temps, and low humidity.  Below is the evening forecast as well as a look at the cabin forecast for those who will be traveling.  Also, there’s a look back at August (at least the first 30 days.)

A pleasant, summer-like evening to start football season.If you're heading north for the holiday weekend, things look warm and pleasant for your getaway.We're ending August on a typically bright and warm note. The month of August as a whole was summery with a stretch of highs in the 70s keeping things from getting too far above normal with our temperatures.A warm and pleasant weather picture for those who heading up north for a weekend getaway.

 

A warm, pleasant weekend awaits those traveling up north for one final summer getaway.

Overall, August has been a warm month, but thanks to a stretch of two weeks in the 70s our average high temp is only slightly above normal.

 

Share

Posted under climate, weather

This post was written by tschmidt on August 31, 2012

Tags: , , , ,

Bright and Warm Today, Stormy Tonight

As promised, today is turning out to be rather summery across the region as gusty south winds behind a warm front are working to push in a little extra heat for us.  High temperatures today will be slightly warmer than normal for the first time in more than a week with readings in the mid 80s expected just about everywhere locally.  The additional warmth and humidity will prime the atmosphere for some thunderstorm activity later tonight as a cold front moves through the Upper Mississippi Valley.  Right now it looks like the best chance for thunderstorms will be after sunset, perhaps closer to midnight for the bulk of the viewing area and yes, there is a chance for some severe storms along this front.  Strong, damaging winds look to be the primary severe weather threat in our area late tonight.  There will be some light showers in the area behind that front with sunshine breaking through late in the morning and prevailing through the afternoon.  Gusty northwest winds tomorrow will usher in much cooler air and some spots may struggle to get to 70° by day’s end.

The latest Storm Prediction Center outlook focuses severe weather potential across our entire region late this evening through tonight as a cold front moves in from the prairies of south central Canada.

There will be an elevated risk of damaging winds tonight in some of our thunderstorms. Gusts may reach or exceed 60mph, possibly knocking down tree branches or power lines.

Share

Posted under Uncategorized

This post was written by tschmidt on August 15, 2012

Tags: , , , , , , ,

A Warm and Wet May

Even though the last couple of days in the month of May we quite a bit cooler than normal and even a little unsettled, the overall picture for May 2012 was a rather warm one for us.  As we’ve seen every month so far this year, our average high temperature for the month was warmer than normal as was the low while rainfall was more than an inch greater than the 30 year average, so aside from the lack of extensive humidity, we’ve already had quite a taste of summer weather this season.  In fact, today (June 1st) marks the beginning of what we call “meteorological summer” where the three warmest, wettest month of the calendar year are bunched together for climate record keeping purposes, so at least we’re primed for the new season and ready to go.  As it appears right now, we’ll have a couple of comfortable spring-like days ahead today and tomorrow, before the near 80° warmth builds in for the end of the weekend and then lingers for the first full week of the young month of June next week.

It was warmer and wetter than normal in May 2012. We reached highs of 80° or more 9 times.

Share

Posted under climate

This post was written by tschmidt on June 1, 2012

Tags: , , , , , , ,

Hold On To Your Hat…

Well it has been pretty windy for the last 36 hours.  Things tomorrow (Sunday) look to calm down a little bit as we get into the afternoon and evening.  Check out some of these wind gusts observed yesterday.

...HIGHEST WINDS OBSERVED FROM AROUND THE AREA...

...NORTHEAST IOWA...

...ALLAMAKEE COUNTY...

LANSING (760 FT)(AWS)                          1124 AM APR 15     24 MPH
3 SE WATERVILLE (651 FT)(RAWS)                  707 PM APR 15     33 MPH

...CHICKASAW COUNTY...

1 S NASHUA (977 FT)(AWS)                        329 PM APR 15     20 MPH
NEW HAMPTON (1166 FT)(AWS)                      104 PM APR 15     23 MPH
3 SW RICHFIELD (1145 FT)(APRSWXNET)             130 PM APR 15     36 MPH
2 N IONIA (1072 FT)(IADOT)                     1155 AM APR 15     47 MPH

...CLAYTON COUNTY...

MCGREGOR (605 FT)(AWS)                          117 PM APR 15     14 MPH
MONONA (1213 FT)(APRSWXNET)                     418 PM APR 15     19 MPH
MONONA (1213 FT)(AWS)                           109 PM APR 15     21 MPH
VOLGA (867 FT)(APRSWXNET)                      1218 PM APR 15     25 MPH

...FAYETTE COUNTY...

OELWEIN AWOS (1076 FT)(OTHER-MTR)               615 PM APR 15     48 MPH

...FLOYD COUNTY...

NORA SPRINGS (1089 FT)(IEM)                     205 PM APR 15     21 MPH
CHARLES CITY AWOS (1125 FT)(OTHER-MTR)          515 PM APR 15     46 MPH

...HOWARD COUNTY...

1 E CRESCO (1272 FT)(AWS)                       458 PM APR 15     14 MPH
1 ENE CRESCO (1279 FT)(IEM)                     315 PM APR 15     22 MPH
3 ESE RICEVILLE (1253 FT)(IEM)                  134 PM APR 15     30 MPH
1 WSW MAPLE LEAF (1290 FT)(APRSWXNET)           455 PM APR 15     31 MPH

...MITCHELL COUNTY...

SAINT ANSGAR (1145 FT)(IEM)                    1240 PM APR 15     31 MPH
SAINT ANSGAR (1145 FT)(APRSWXNET)              1210 PM APR 15     34 MPH
OSAGE (1160 FT)(IEM)                           1255 PM APR 15     35 MPH

...WINNESHIEK COUNTY...

1 ENE JACKSON JUNCTION (1180 FT)(AWS)           529 PM APR 15     24 MPH
DECORAH (957 FT)(AWS)                           113 PM APR 15     29 MPH
DECORAH AWOS (1158 FT)(OTHER-MTR)               335 PM APR 15     41 MPH
4 E NORDNESS (1017 FT)(IADOT)                   138 PM APR 15     45 MPH

...SOUTHEAST MINNESOTA...

...DODGE COUNTY...

DODGE CENTER AWOS (1305 FT)(OTHER-MTR)          434 PM APR 15     45 MPH

...FILLMORE COUNTY...

2 ESE CANTON (1348 FT)(MNDOT)                   234 PM APR 15     39 MPH
PRESTON AWOS (1276 FT)(OTHER-MTR)               155 PM APR 15     43 MPH

...MOWER COUNTY...

LE ROY (1290 FT)(IEM)                           120 PM APR 15     35 MPH
4 E GRAND MEADOW (1322 FT)(IEM)                 221 PM APR 15     38 MPH
AUSTIN AWOS (1230 FT)(OTHER-MTR)               1255 PM APR 15     46 MPH
1 ENE DEXTER (1410 FT)(MNDOT)                   351 PM APR 15     51 MPH

...OLMSTED COUNTY...

2 NE ROCHESTER (1046 FT)(IEM)                   245 PM APR 15     22 MPH
1 WSW STEWARTVILLE (1230 FT)(AWS)               318 PM APR 15     23 MPH
1 ESE ROCHESTER (997 FT)(IEM)                   305 PM APR 15     24 MPH
4 NW ROCHESTER (1273 FT)(APRSWXNET)             214 PM APR 15     31 MPH
1 SSE STEWARTVILLE (1253 FT)(APRSWXNET)         156 PM APR 15     32 MPH
1 WSW ROCHESTER (1205 FT)(APRSWXNET)            248 PM APR 15     33 MPH
4 WSW RINGE (1140 FT)(APRSWXNET)                533 PM APR 15     35 MPH
3 S ROCHESTER (1240 FT)(APRSWXNET)              619 PM APR 15     37 MPH
ROCHESTER ASOS (1318 FT)(ASOS)                  354 PM APR 15     45 MPH
2 SE EYOTA (1309 FT)(MNDOT)                     216 PM APR 15     48 MPH

...WABASHA COUNTY...

3 NW BUFFALO (676 FT)(AWS)                      343 PM APR 15     11 MPH
PLAINVIEW (1138 FT)(AWS)                        339 PM APR 15     16 MPH
1 NE BEAR VALLEY (1000 FT)(APRSWXNET)           130 PM APR 15     27 MPH
2 SSE KELLOGG (741 FT)(MNDOT)                   439 PM APR 15     33 MPH

...WINONA COUNTY...

1 NE GOODVIEW (656 FT)(OTHER-MTR)               454 PM APR 15     36 MPH

...SOUTHWEST AND CENTRAL WISCONSIN...

...ADAMS COUNTY...

FRIENDSHIP (958 FT)(AWS)                        259 PM APR 15     24 MPH

...BUFFALO COUNTY...

COCHRANE (1083 FT)(AWS)                         219 PM APR 15     16 MPH

...CLARK COUNTY...

LOYAL (1237 FT)(AWS)                            818 PM APR 15     18 MPH
1 WNW SIDNEY (1174 FT)(APRSWXNET)               329 PM APR 15     22 MPH

...CRAWFORD COUNTY...

PRAIRIE DU CHIEN (630 FT)(AWS)                  234 PM APR 15     17 MPH
DE SOTO (720 FT)(APRSWXNET)                     211 PM APR 15     23 MPH
PRAIRIE DU CHIEN AWOS (662 FT)(OTHER-MTR)       115 PM APR 15     37 MPH

...GRANT COUNTY...

MUSCODA (665 FT)(AWS)                          1043 AM APR 15     19 MPH
FENNIMORE (1175 FT)(AWS)                        430 PM APR 15     22 MPH
1 ENE BOSCOBEL (672 FT)(RAWS)                   303 PM APR 15     38 MPH
BOSCOBEL ASOS (672 FT)(ASOS)                    153 PM APR 15     43 MPH
1 W PLATTEVILLE (997 FT)(APRSWXNET)             500 PM APR 15     47 MPH
PLATTEVILLE AWOS (1023 FT)(OTHER-MTR)           354 PM APR 15     51 MPH

...JACKSON COUNTY...

1 E BLACK RIVER FALLS (837 FT)(RAWS)           1115 AM APR 15     30 MPH

...JUNEAU COUNTY...

3 SE LYNDON STATION (925 FT)(APRSWXNET)         214 PM APR 15     23 MPH
MAUSTON (872 FT)(APRSWXNET)                     232 PM APR 15     29 MPH
1 WNW NECEDAH (950 FT)(RAWS)                   1248 PM APR 15     36 MPH
VOLK FIELD (908 FT)(OTHER-MTR)                  439 PM APR 15     44 MPH

...LA CROSSE COUNTY...

1 WSW ONALASKA (682 FT)(APRSWXNET)              847 AM APR 15     22 MPH
1 W LA CROSSE (960 FT)(APRSWXNET)               225 PM APR 15     37 MPH
LA CROSSE ASOS (652 FT)(ASOS)                  1253 PM APR 15     40 MPH
3 SW BARRE MILLS (820 FT)(APRSWXNET)            841 AM APR 15     44 MPH

...MONROE COUNTY...

KENDALL (1059 FT)(APRSWXNET)                    140 PM APR 15     30 MPH
SPARTA AWOS (836 FT)(OTHER-MTR)                 235 PM APR 15     43 MPH

...RICHLAND COUNTY...

3 WNW ITHACA (943 FT)(APRSWXNET)               1219 PM APR 15     14 MPH
1 SSE RICHLAND CENTER (752 FT)(AWS)            1043 AM APR 15     18 MPH
RICHLAND CENTER (713 FT)(AWS)                   228 PM APR 15     21 MPH

...TAYLOR COUNTY...

3 NE LUBLIN (1316 FT)(RAWS)                     414 PM APR 15     35 MPH
MEDFORD AWOS (1469 FT)(OTHER-MTR)               835 PM APR 15     40 MPH

...VERNON COUNTY...

3 N VIROQUA (1318 FT)(APRSWXNET)                310 PM APR 15     35 MPH
VIROQUA AWOS (1292 FT)(OTHER-MTR)               535 PM APR 15     49 MPH

 

Share

Posted under weather, wind

This post was written by jkegges on April 16, 2011

Tags: , , ,

It’s Official: 2010 Summer Dew Point Record Set

As we draw closer to the end of astronomical summer this week with the autumnal equinox slated to take place next Wednesday night, we can now close the books on some of our summer climate records here in southeastern Minnesota and northern Iowa and take a final look back at our warm and sticky summer of 2010.  To summarize things in Rochester for instance, we could describe this summer as being warmer and wetter than average as it turned out to be the 9th warmest and the 15th wettest meteorological summer (between June 1st and August 31st) with a mean temperature of 70.9° and total rainfall of 16.49 inches.  However, the most noteworthy aspect of this summer’s weather had to be the high humidity which seemed to linger in long stretches with only a few brief breaks at times here and there.  In fact, we set a record for the highest daily dew point temperature for the entire summer with an average of 63.1°!  That’s a lot of humidity in the air!  Here’s a look at the overall standings in that record category:
        HIGHEST AVERAGE DEW POINTS
        DURING A METEROLOGICAL SUMMER
        IN ROCHESTER MN

                 AVERAGE
      RANK      DEW POINT         YEAR
      —-      ———         —-
        1     63.1 DEGREES        2010
        2     62.8 DEGREES        1995
        3     62.2 DEGREES        2002
        4     61.3 DEGREES        1983
        5     61.2 DEGREES        1987
        6     61.1 DEGREES        1999
        7     61.0 DEGREES        1991
        8     60.9 DEGREES        1980
        9     60.8 DEGREES        2005
       10     60.2 DEGREES        2001

IN CONTRAST, THE SUMMERS OF 2008 (57.5 DEGREES – 8TH DRIEST) AND
2009 (56.1 DEGREES – 4TH DRIEST) FINISHED IN THE TOP TEN FOR LOWEST
AVERAGE DEW POINTS FOR A SUMMER.  THE LOWEST AVERAGE DEW POINT
OCCURRED BACK IN 1985 WHEN THE AVERAGE DEW POINT WAS JUST
51.3 DEGREES.

AVERAGE DAILY DEW POINT RECORDS FOR ROCHESTER DATE BACK TO 1973.

Share

Posted under climate

This post was written by tschmidt on September 13, 2010

Tags: , , , , , , , ,

It’s Not Your Imagination, It’s Been a Hot Summer

With meteorological summer just about finished, we can now begin to look back at some of our seasonal statistics and compare them to other years in order to see just how warm things really have been for us.  If it seems like we’ve been needing to seek relief in the air conditioning this year a lot more than usual, it’s because we have.  A look at the chart below confirms it.  Here’s a look at a statistic we call cooling degree days that reflects the use or the likelihood of the use of that good old air conditioning.  These numbers really do essentially tell the story:

Cooling Degree Days

   Cooling Degree Days are a value used to estimate energy requirements for air conditioning or refrigeration.  Typically, cooling degree days are calculated as how much warmer the mean temperature at a location is than 65°F on a given day. For example, if a location experiences a mean temperature of 75°F on a certain day, there were 10 CDD (Cooling Degree Days) that day because 75 – 65 = 10.

Cooling Degree Days in 2010 Through August 22
  Normal 2010 2009
Duluth, MN 166 260 94
Eau Claire, WI 494 606 287
Fargo, ND 457 542 262
International Falls, MN 210 158 55
Minneapolis, MN 599 876 512
Rochester, MN 418 604 281
Sioux Falls, SD 631 657 414
St. Cloud, MN 386 536 245

It looks like we’ll be rounding out the month of August on a warm and humid note, but there will be a brief respite from the heat coming up with the passage of a cold front later this week.  We’ll get at least a short lived break from this heat between Thursday and Sunday.

Share

Posted under climate, heat

This post was written by tschmidt on August 30, 2010

Tags: , , , ,

Need a break from Summer?

Even though we’ve been talking about how “warm” it’s been this summer, and August, we still haven’t officially hit the 90° mark at the Rochester airport for this month. Normal? Eh. We usually rack up 1.5 days in August with highs at or above 90°.

Here’s a look at our other months:
July: 1 (normal: 3.1 days)
June: 0 (normal: 1.7 days)
May: 2 (normal: 0.3 days)
April: 0 (normal: 0.1 days)

But it’s still been warm, right? Yes. Our average temp for August has been 73.6° (that’s highs and lows averaged, FYI), 4.8° above normal. The culprit: a persistant southerly flow that’s kept a feed of Gulf air in the region and warm temperatures (it’s hard to have cool weather when you have dew points hovering near 70° all the time!)

If you need a break from the Gulf summer you unknowingly signed up for, we’ll have one this week. Our temps will drop into the mid….perhaps even..gasp..low 70s!…by the mid week. Dew points will fall into the 40s and 50s and lows will nudge down to the 50° mark by Thursday morning. We’ll round this out with a dry forecast – all in all, a refreshing, pleasant week on tap, especially good with the Minnesota State Fair starting on Thursday.

Share

Posted under climate

This post was written by Steph on August 22, 2010

Tags: , , , ,

Summer hasn’t left quite yet

For those of you saying, “Don’t go yet, summer temps!”, have no fear. We’re not done with them yet…or the humidity. In the meantime, my words of advice are to get out today and tomorrow before things get warmer & stormy again.

Do you think this summer has been warmer? Cooler? Jeff Boyne at the NWS in La Crosse lays the data on the line for us. And it may surprise you.

Share

Posted under climate

This post was written by Steph on August 17, 2010

Tags: , , , , ,

One of the Coolest Summers So Far

Here’s a look at the National Weather Service in LaCrosse’s summary of our summer so far and how it compares to some previous years. 

 

…COLDEST SUMMER SINCE 1969 IN ROCHESTER MN SO FAR…

THROUGH JULY 31ST, THE AVERAGE TEMPERATURE AT ROCHESTER
INTERNATIONAL AIRPORT WAS 65.6 DEGREES.  THIS WAS 2.5 DEGREES BELOW
THE NORMAL OF 68.1 DEGREES.  THIS SUMMER IS CURRENTLY THE 4TH
COLDEST SUMMER THROUGH THIS DATE.  THE LAST TIME THAT ROCHESTER WAS
THIS COLD THROUGH THE FIRST TWO MONTHS OF METEROLOGICAL SUMMER WAS
BACK IN 1992 WHEN THE AVERAGE TEMPERATURE WAS 64.4 DEGREES /2ND
COLDEST SUMMER/.  THE COLDEST SUMMER THROUGH THIS DATE OCCURRED BACK
IN 1958 WHEN THE AVERAGE TEMPERATURE WAS JUST 63.5 DEGREES.

THE TABLE BELOW SHOWS THE TOP 10 COLDEST METEOROLOGICAL SUMMERS IN
ROCHESTER MN THROUGH JULY 31ST.

COLDEST START TO METEOROLOGICAL SUMMER
      FROM JUNE 1 THROUGH JULY 31
            IN ROCHESTER MN

                 AVERAGE
    RANK       TEMPERATURE       YEAR
    —-       ———–       —-
      1        63.5 DEGREES      1958
      2        64.4 DEGREES      1992
      3        64.7 DEGREES      1969
      4        65.6 DEGREES      2009
      5        66.2 DEGREES      2004
      6        66.3 DEGREES      1993
      7        66.4 DEGREES      1968
               66.4 DEGREES      1960
      9        66.5 DEGREES      1967
     10        66.6 DEGREES      1996
               66.6 DEGREES      1985

THE LARGEST TEMPERATURE DEPARTURES FROM NORMAL THIS SUMMER HAVE BEEN
THE MAXIMUM TEMPERATURES.  SO FAR THIS SUMMER…THE AVERAGE MAXIMUM
TEMPERATURE HAS BEEN 75.2 DEGREES.  THIS IS 3.1 DEGREES BELOW
NORMAL.

THE TABLE BELOW PROVIDES A BREAK DOWN OF THE TEMPERATURE DEPARTURES
FROM NORMAL FOR ROCHESTER MN THIS SUMMER…

                                            DEPARTURE FROM
                                                NORMAL
                                            ————–
JUNE   MONTHLY AVG. TEMP       65.9 DEGREES  -0.2 DEGREES
       MONTHLY AVG. MAX TEMP   75.3 DEGREES  -1.3 DEGREES
       MONTHLY AVG. MIN TEMP   56.4 DEGREES  -0.8 DEGREES

JULY   MONTHLY AVG. TEMP       65.3 DEGREES  -4.8 DEGREES
       MONTHLY AVG. MAX TEMP   75.1 DEGREES  -5.0 DEGREES
       MONTHLY AVG. MIN TEMP   55.5 DEGREES  -4.6 DEGREES

SUMMER
SO FAR MONTHLY AVG. TEMP       65.6 DEGREES  -2.5 DEGREES
       MONTHLY AVG. MAX TEMP   75.2 DEGREES  -3.1 DEGREES
       MONTHLY AVG. MIN TEMP   56.0 DEGREES  -1.9 DEGREES

 

Share

Posted under climate

This post was written by tschmidt on August 3, 2009

Tags: , ,