August

posted in: Michigan Weather Forecast, Slim | 14

Wow can it be August all ready? Seems like just yesterday it was January 1st and we were just starting the “New Year” The Grand Rapids (1981-2010) mean average temperature for August is 70.1° I would  look for that to increase when the updated averages come out. On average there is around 3.6” of rain fall and the sun shines about 70% of the time. The warmest August of record at Grand Rapids is 77.1 in 1947. The coldest August of record was 65.0 in 1992. The Hottest day was 102 on August 6, 1919 and the coldest low was 39 on August 30, 1976. The last time it has reached 100 in August at Grand Rapids was in 1964.  The mean number of 90 days for August is 3 but there have been 29 years when August has not had any days of 90 or better. And that was the case just last year. The most 90 days happened in that hot August of 1947 when it reached 90 of 17 days. In 2nd place is 1988 with 13 the most in the last 30 years was 2007 with 8. For a comparison this July will have had 10 days of 90 or better at GR. Here is a list of the top 5 warmest August’s at Grand Rapids 1.1947-77.1  2. 1906-76.3  3. 1937-76.0  4  1959 -75.5    5. 1955-75.0. The top 5 coldest 1. 1992-65.0  2.  1915-65.1  3. 1903-65.3  4. 1927-65.7  5. 1904-65.9.

Here is the latest CPC outlook for August 2020.

https://www.cpc.ncep.noaa.gov/products/predictions/30day/

 

Here is a kind of fun fact. While this July is going to end up with a mean temperature well above average. Most of the heat was in the first 10 days of the month. During the first 10 days of July the average H/L here at Grand Rapids was 91.4/67.6 for a mean of 79.7. But between the 10th to the 30th the average H/L has been a more normal 83.4/65.1 for a mean of 74.5 while still warmer than average it still have been more conformable then the first 10 days of the month. Now that said Barry brought up something that kind of surprised me. And that is we have had now 36 days in a row of 80 or better. Now this has not happened very often here at Grand Rapids. There is a good chance that this month will see all 31 days of 80 or better and that has only happened once and that was in 1955. The longest string of days of 80 or better that I can find was 52 in 1921 (from June 9th to July 30th) in 1988 there were 45 days in a row from July 12th to August 17th and in 1955 there were 42 days in a row from June 27th to August 7th  in 1916 there was a string of 34 days.

Slim

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Mr. Negative
Mr. Negative

August?…nope, October 🙁

INDY
INDY

Currently 77* degrees out at thee YARDofBRICKS NE of GR feels wonderful outside loving this time of year it only gets. better as we roll through August…..INDY

Barry in Zeeland
Barry in Zeeland

Good read again Slim! Quite the streaky month we had for July around the area. Record breaking and near records of 90 degree days in a row , and only the second time ever that every day hit 80 or better. Plus combined with one of the hottest months in most of our lives behind 2012, adds up to a memorable month.

Mark (East Lansing)
Mark (East Lansing)

A/C is off and the windows are open. It’s been a long time since we’ve done that. Feels great outside. It would be nice to get at least 0.75″ of rain in the next day or three. Have a great day, everyone!

Rocky (Rockford)
Rocky (Rockford)

Heat? What heat? Virtually no heat waves and now a stretch of below normal temps! Bring on winter!

INDY
INDY

Yes 90’s have been forgetting 80’s are the hot talk now just like our temps the are gradually coming down as we head towards September….INDY

INDY
INDY

Currently 67* degrees out at thee YARDofBRICKS NE of GR feels good to be home from vacation and the cool weather feels even better forgotten has heat YES ….INDY…

Mookie
Mookie

July finished +3.2 degrees above average making it the hottest summer month since 2012. Wow! We also had 73% sunshine!

INDY
INDY

Around the end of AUGUST it will be dark at 8pm gotta love that avarage temps on the way down how quick this summer has gone
the week ahead looks fantastic temps in the 70’s baby …..Fall could not be any closer …INDY

MichaelV

Forecast Discussion as of 5 am — Rain arrives this evening, steadiest overnight — The general theme for the next 24 hours or so will be bands of showers moving into Michigan from south to north, with the heaviest rain likely near and east of I-69 where 1″ to locally 3″ will be possible. Rain should still accumulate north and west of I-69 but amounts will commonly be 0.25″-0.50″ with locally up 1″ possible. Very little rain is expected north of a Muskegon to Big Rapids to Clare line with this system. It has been interesting to watch the full… Read more »