The graphic to the left compiles the average temperatures during the day and night in each region of Indiana.
Averages Last Year
The average temperatures during May for Indianapolis were almost exactly as predicted in the graphic to the left in the beginning of the month, but gradually getting colder as the month progressed. Comparing the first two weeks of May in 2022:
May 1 - a high of 66 and a low of 50.
May 15 - a high of 85 and a low of 55.
What Can We Expect?
Based on the expected temps in the graphic above and the average temps from last year we can expect May to be brisk. Expect to keep a light jacket with you, but get ready for some much anticipated warmth as the month progresses. Last year mid-May had a heat wave.
What About My City?
A helpful web page you can use to compare your own city's average temps from 2022 to this year is: Weather Spark
Just type in your city and data graphs for past years, as well as 2023, will appear.
Weather + Phenology: How Do They Relate?
The temperature impacts the phenology cycle of plants especially during these critical season changes. At this time in Indiana, the temp is getting low enough to cause leaves to start changing color and fall off their trees. If there is a drastic change in the typical expected temp for this month or next, it could lead to this process happening sooner than normal, or later than normal. This in turn affects the life cycle timing for many insects and animals who use these plants as a food source.
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