With this year’s string of days with highs of 80 or better I thought it would be a good time to see how this stacks up to some past strings. So far this year’s string is at 25 days. As far as I can tell the record here at Grand Rapids is 52 days in 1921. In that year the string started on June 9th and the recorded high here at Grand Rapids was 80 or better until July 30th of the 52 days 29 were 90 or better and 1 day had a high of 100. There were 18 nights were the low did not get below 70. July 1921 is the warmest July of record here at GR with a mean of 79.7° The year with the 2nd number of days in a row of 80 or better is 1988 that year had 47 days in a row starting on July 2nd and ending on August 18th in that string there were 26 days of 90 or better and 1 day of 100. There were 11 days of lows of 70 or better. In 1955 all days of July were 80 or better. Starting on June 27th and running to August 7th 18 of the days seen highs of 90 or better. In 1947 the string started later in the summer but starting on August 2nd and running to September 14th a string of 34 days that August had 17 days of 90 or better with 2 of them being 100.
We are now just past the half way point of the meteorological summer of 2019 and here are some facts as to where Grand Rapids stands here at the half way point. For June the mean temperature was 66.8° and that was a departure of -1.6° there was 4.36” of rain fall in June there was just 1 day of reported thunder at GRR. Of the 30 days the mean temperature on 19 were below average and 11 were above average. In July the mean so far is at 76.3° and that is good for a departure of +3.8° This month so far there have been just 4 days of below average mean temperatures and one day of a average mean and 14 days of above average. There has been just 1.96” of rain fall so far. For the meteorological summer season so far there have been 30 days of 80° or better (today will be 30) and of those 30 days 6 have been 90 or better for the met season there have been 5 days in the 60’s and 6 more days where the high was under 75. The coldest low so far this summer is 40. There have been 7 nights were the low did not get below 70 so far with the warmest being 72. It is still too early to say where July 2019 will end up but at this point it is the 11 warmest on record for Grand Rapids. Note it looks to turn cooler for the last 8 days of the month so will wait to see where this year will end up.
Many of the dew points on Friday were about as high as they can get here in Michigan. There were many dew points in the mid 70’s all the way up to the low 80’s here are some of the higher ones. Ann Arbor 79, Battle Creek 78, Coldwater 80, Jackson 79, Monroe 84??? Sturgis 81 Grand Rapids 77 And drum roll please an 80° dew point here at my house.
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