The Great Heat Wave

posted in: Michigan Weather Forecast, Slim | 38

I know that there has been talk of the heat this past week or more but the truth is this past weeks heat and humidity are no comparison to the heat of 2012 or 1936. It very well may not have been nearly as humid in 2012 and 1936 as both happened during a  very dry period but there is no comparison to the amount and length of the amount of heat. In 2012 starting on July 1st the highs in Grand Rapids were 91 on the 1st 96 on the 2nd and 3rd 99 on the 4th 101 on the 5th the hottest day 104 was on the 6th and a official reading of 99 was on the 7th here at my house I had highs of over 100 on the 4th 5th 6 and 7th while the “official” high was 104 I reached a whopping 108 here at my house If that had happened at GRR that would have tied the all time record for Grand Rapids.


Here in Michigan the hottest longest stretch started on July 7th 1936 and lasted until July 18th The heat started off to our west in June, however here in Michigan June 1936 was in some locations much cooler than average. In fact at Muskegon June 1936 set the record for the coldest June on record there with a mean of only 57.2° (-9.1°) the warmest for the whole month was only 78° and on June 20th 1936 the temperature fell to 35° At Lansing June 1936 was -3.4° and here in Grand Rapids it was -1.2° elsewhere around the state Detroit, Saginaw, Alpena, Houghton Lake, and the Sault were all below average.
Now for the Great Heat Wave. It started on July 7th 1936 here in Grand Rapids with a high of 98° Here are the high/lows for the next 11 days. The 8th 101/78, the 9th 101/78, the 10th 102/78, the 11th 99/78, the 12th 106/74, the 13th 108/79, the 14th 102/74, the 15th 86/69, the 16th 94/65, the 17th 93/67 and the 18th 91/69. In Lansing the “heat” was not as extreme there the high/low during the above dates were. 91/56, 98/70, 96/70, 98/71, 96/72, 99/71, 99/74, 101/69, 84/60, 86/59, 88/61 and 88/64. Now while it was hot in both GR and Lansing for any who could get over there at the lake shore it was much cooler and on some dates it was not hot at all. Here are the readings for Muskegon for the dates between July 7th 1936 and July 18th 1936. Starting out on July 7th 89/67, 80/65, 82/69, 78/70, 82/73, 82/71, 88/71, 86/70, 86/70, 85/69, 81/68, 78/66 and 79/66. Muskegon was one of the few locations that did not reach 100 or better in the 1936 heat wave. In other locations around the state here is a list of the high temperatures for the dates July 7th to the 18th Detroit 89,104,102,102,101,100,102,104,87,90,89,89. Flint 94,108,105,102,104,105,108,105,91,91,91,92. Saginaw 98,107,104,107,107,105,111,92,95,96,87. It was not any cooler in norther Michigan as here are the readings from Alpena starting on July 7th 100,104,100,105,106,91,87,85,86,81. After a low of 35° on July 1st at Houghton Lake the highs starting on the 7th 100,107,105,106,105,104,107,101,91,92,91,87. At the Sault like Muskegon it was cooler than other locations and also like Muskegon the Sault was one of the few locations that did not reach 100 or better. At the Sault the highs were 93,95,96,93,95,96,89,87,81,83,83,78.
Here are some of the records that were set in 1936
July 5, 1936
South Dakota state record, 120 at Gann Valley
July 6
Minnesota state record, 114 at Moorhead
North Dakota state record, 121 at Steele
Bismarck, ND 114
Fargo, ND 114
Aberdeen, SD 115
July 7
Traverse City, MI 105
July 8
Toronto, Ont. Canada 105
Flint, MI 108
July 9
New York City (Central Park) 106
Syracuse, NY 102
Rochester, NY 102
Scranton, PA 103
Williamsport, PA 106
Youngstown, OH 103
Toronto 105 tied record

July 10
Maryland state record, 109 at Cumberland and Frederick
New Jersey state record, 110 at Runyon
Pennsylvania state record, 111 at Phoenixville
West Virginia state record, 112 at Martinsburg
Baltimore 107
Lynchburg, VA 106
Lexington, KY 108
Toronto 105 (three days in a row!!)
July 11
Manitoba provincial record, 112 at Treesbank
Brandon, Man. Canada 110
Winnipeg, Man. 108
Norway House, Man. 101
Minot, ND 109
July 12
Manitoba provincial record tied, 112 at Emerson
Kapuskasing, Ont. Canada 101
Grand Forks, ND 109
July 13
Michigan state record, 112 at Mio
Wisconsin state record, 114 at Wisconsin Dells
Ontario provincial record, 108 at Atikokan and Fort Frances
Duluth, MN 106 (Wow!!)
Eau Claire, WI 111
Green Bay, WI 104
Waterloo, IA 112
Evansville, IN 108
Grand Rapids, MI 108
Saginaw, MI 111
July 14
Indiana state record, 116 at Collegeville
Terre Haute, IN 110
Toledo, OH 105
Rockford, IL 112
Moline, IL 111
Dubuque, IA 110
Madison, WI 107
Minneapolis, MN 108
Rochester, MN 108
July 15
Peoria, IL 113
Quincy, IL 114
Kirksville, MO 113
Lexington, KY 108 (tied record from 7/10)
July 16
Mobridge, SD 116
July 17
Norfolk, NE 116
July 24
Kansas state record, 121 at Alton and Fredonia
Nebraska state record, 118 at Minden
Grand Island, NE 117
Topeka, KS 114
Slimjim

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Sandy (Hudsonville)Mr. NegativeRocky (Rockford)Andy WMark (East Lansing) Recent comment authors
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INDY
INDY

69* degrees 61* dewpoints out at thee YARDofBRICKS NE GR feels wonderful .. Crazy how a few like it so darn hot on here ..INDY

Sandy (Hudsonville)
Sandy (Hudsonville)

You could feel the cooler air move in and humidity leave this evening. 🙂

Mr. Negative
Mr. Negative

Cold front is here, and so is the wrap-up to Summer in the Southern Arctic. Two weeks of warm weather…expecting more is simply greed. Jackets back on, snow rakes, test fire the snow blower, etc…you know the routine.

Sandy (Hudsonville)
Sandy (Hudsonville)

🙂

Rocky (Rockford)
Rocky (Rockford)

Sounds absolutely awesome!

INDY
INDY

78* degrees Dewpoints 66* out at thee YARDofBRICKS NE GR …open a window ..INDY!

INDY
INDY

Temps are dropping outside feels refreshing with a the wind out out of the northeast getting darker earlier now …Love it..INDY!

Barry in Zeeland
Barry in Zeeland

Sunset at the solstice was 9:25, today it was 9:24. I highly doubt you can tell the 1 minute difference.

https://www.timeanddate.com/sun/usa/grand-rapids?month=7&year=2019

INDY
INDY

Must be the clouds then lol…INDY!

Barry in Zeeland
Barry in Zeeland

Interesting coincidence that almost exactly at the Summer solstice the weather pattern has flipped from cool and wet to hot, dry, and humid.

INDY
INDY

Keep drinking lots of water and use sun screen it is the hottest part of summer …INDY!

Andy W
Andy W

Wow!! So much for it cooling off out there today! Still close to 90 and the heat index still in the 90’s!! The heat wave continues!!

Mookie
Mookie

Lake Michigan water temps are now 6-8 degrees warmer than average! And the Great Lakes average water temps will soon be warmer than any of the past 5 years! Wow!

comment image

Barry in Zeeland
Barry in Zeeland

That is an incredible rebound with this stretch of hot weather! We were at the Grand Haven beach last night and the water felt like bath tub water.

Rocky (Rockford)
Rocky (Rockford)

Well you keep your house at 60 degrees so bath water may be around 62 degrees for you! I have never felt lake MI feel like bath water! Incredible!

Barry in Zeeland
Barry in Zeeland

Ask anyone who’s been there this weekend, walking along the edge it felt like bath water, no coolness to it whatsoever. Look at the temp graph below, and those aren’t temps right along the shoreline. Where we were walking it was easily 80 degrees.

Mookie
Mookie

Currently an 82 degree dew point in Marshall! All time record high in Michigan??

Mookie
Mookie

The CPC is now keeping the heat on most of July!

INDY
INDY

Loving the breeze out of the north today feels refreshing…77* degrees out at thee YARDofBRICKS NE GR at 1115am..Fact is feels a lot better then yesterday already ..INDY..

Barry in Zeeland
Barry in Zeeland

Nope. Dew point actually went up the past hour, now at a smothering 72.

https://w1.weather.gov/data/obhistory/KGRR.html

Mark (East Lansing)
Mark (East Lansing)

More earthquakes in California. Mother Nature is restless.

INDY
INDY

This 2 weeks of warmth is nothing like last year and why even compare it to July of 2012? Nice write up Slim on that thought I can already feel the dewpoints dropping this morning and with the showers moving in our cooling trend is starting again.. Have a super Saturday MV’S best ….INDY!

Barry in Zeeland
Barry in Zeeland

You can’t see the future. How would anyone know what’s coming the next 2 or 3 months?

INDY
INDY

Future? Hmmm hunting season is coming days are getting shorter and the next 10 days seeing no 90*s sounds like facts to me what future? Lol…INDY!

Barry in Zeeland
Barry in Zeeland

The next 10 days weather that hasn’t happened yet are already facts? Well that makes perfect sense. Kind of like a week or so ago when you posted our only shot at 90 the rest of the Summer was that day. How’d that work out?

INDY
INDY

Dink! Lots of water keep hydrated .INDY!

Mookie
Mookie

Welcome to day 12 of the heat! As always, Slim isn’t impressed unless it makes an all time record lol

Barry in Zeeland
Barry in Zeeland

Yeah 2012 was hot! Right in the middle of the July heat wave we did our roof and put new siding on our house. It was just terrible working outside, but I had taken that week off from work well in advance so we had to do it. We would start at 8 at night and work till 3 in the morning, but then it was almost worse because there was no breeze. I’d love to know what the dew points were then, but no record of that. This week may be 5 to 10 degrees cooler, but it’s the… Read more »