We are now in the last weekend of August 2020 and the end of meteorological summer. I know there will be some who will point out that it will stay warm and summer does not end until September 22nd But for weather keeping purposes we will enter meteorological fall on Tuesday. That said as of Friday AM here at Grand Rapids the mean for August so far 72.4° and that is a departure of +1.3° the high for the month will be 91 on the 24th and again on the 26th the low so far has been 52 on the 19th
Heading into September the current Grand Rapids mean average at Grand Rapids is 62.8° The warmest mean for any September at GR is 69.0 in 1931. The hottest day is 98 on September 2nd 1913. Highs in the 90’s are not uncommon as 49 years have seen a high of 90 or better in September and on average there is at least one day of 90 or better. The most was 7 in 1931. In 2017 there were 6. In only 2 years has it not reached at least 80. The coldest mean is 56.2 in 1918 the record low is 27 on September 28, 1991. It has fallen below 30 in 7 Septembers and it has gotten down to 32 or lower on 17 more Septembers. On average Grand Rapids receives 4.28” of rain fall. The wettest was 11.85” in 1986 and in 1979 just a trace of rain fell for the driest.
For the autumn season the mean at Grand Rapids is 51.3° the warmest was a mild 57.5 in 1931 and the coolest was 45.8 in 1976. The average precipitation is 11.05” the wettest is 17.68 in 1988 the driest 2.59” in 1956. On average Grand Rapids receives 7.3” of snow fall in the fall. The most snow fall is 31.0” in 2014 and the least is a trace last recorded in 1984.