Wow, time is sure flying by. It just seems like yesterday was the 1st day of the new year and now it is late June and Tuesday with be the 1st of July. At Grand Rapids July in most years is the warmest month of the year. That was not the case in 2009 when both June and August were warmer. In 1947, 1900, 1937 and 1959 August was warmer than July. In the case of 1947 August was much warmer that year July had a mean of just 69.1 but August had a mean of 77.1.
The average 30 year mean at Grand Rapids is 72.8 with 3.86” of rain fall. The average H/L is stable at 82.8/61.7 on the 1st and 82.5/62.6 on the 31st. The warmest days on average are between the 9th and the 16th with a average H/L of 83.4/62.7. The 15-year average is warmer with the average mean being 73.5 with the daily average H/L of 82.8/62.0 on the 1st and 83.6/63.2 on the 31st the warmest days are between the 15th to the 22nd with a average a H/L of 84.3/63.6. The 15-year average July rain fall is 3.84”. The warmest means for July are 79.7 in 1921. 79.2 in 2012. 78.7 in 1916. 78.1 in 1901. 77.3 in 1936. Honorable mention goes to 2011 with a mean of 77.0. The coldest means for July are 67.1 in 2009. 67.2 in 1992. 68.1 in 1950. 68.2 in 1996. And 68.4 in 2014. The driest Julys are 0.40” in 1934. 0.46” in 1934. 0.54” in 1898. 0.56” in 1951 and 0.66” in 1930. There has been a total of 13 years when less than 1” of rain fell at Grand Rapids, the last time was in 1976. The wettest Julys are 1992 with 8.83”. 1950 with 8.42”. 1994 with 80.7”. 1912 with 7.47” 1917 with 6.91” honorable mention goes to 2006 with 6.90”. The record hottest day was 108 on July 13, 1936, it was also 106 on July 12th that same year. A high of 104 was recorded in 2012 and 1934 for the hottest days ever recorded at Grand Rapids. On average there are 5 days of 90 or better in July with the most being 18 in 2012 there have been 12 years of 0 days of 90 or better in July the last time was July 2021. On average there are 11 days of 86 or better in July with the most 27 in 2012 and 1921. In 2009 and 2000 there were no days of 86 or better. The record low for July is 41 on July 6th, 1983. Over the years it had gotten down into the 40’s in 75 Julys. The last time that happened was in 2005. Last year the mean at Grand Rapids was 75.0, that was a departure of +2.2,there 6 days of 90° or better the highest for the month was 93 and the lowest for the month was 56, there was 2.62” of rainfall.
Here are some top 5 July’s
The warmest July’s
79.7 1921
79.1 2012
78.7 1916
78.1 1901
77.3 1936
Coolest
67.1 2009
67.2 1992
68.1 1950
68.2 1996
68.4 2014
Wettest
8.83 1992
8.42 1950
8.07 1994
7.47 1912
6.17 1916
Driest
0.40 1934
0.46 1939
0.54 1898
0.56 1951
0.56 1930
So it will soon be time to set back and see how July 2026 plays out.