Bloomington-Normal May Weather

Averages and records for weather in Bloomington-Normal, Illinois in the month of May.
Typical Bloomington-Normal May Weather
1991–2020
Average daily high 73.9 °F
Average daily low 50.8 °F
Average monthly precipitation 4.7 inches
Average monthly snow none
Daily chance of precipitation 38.9%
Daily chance of snow 0%
Bloomington-Normal May Weather Records
1893–2024
Highest temperature 103 °F May 31, 1934
Lowest temperature 21 °F May 10, 1966
Highest daily low 75 °F May 26, 1937
Lowest daily high 40 °F May 1, 1909
Hottest average high temperature 84.0 °F 1896
Coldest average high temperature 65.0 °F 1935
Most daily precipitation 3.9 inches May 2, 1936
Most monthly precipitation 10.2 inches 1908
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 68.2 44.8 91 26
May 2 68.5 45.2 92 29
May 3 68.8 45.5 90 28
May 4 69.0 45.7 92 27
May 5 69.3 46.0 94 28
May 6 69.7 46.4 92 28
May 7 70.2 46.8 93 26
May 8 70.5 47.2 94 32
May 9 70.9 47.7 94 30
May 10 71.3 48.1 98 21
May 11 71.7 48.4 94 29
May 12 71.9 48.8 95 30
May 13 72.4 49.3 93 26
May 14 72.9 49.8 92 31
May 15 73.4 50.3 94 30
May 16 73.8 50.6 92 30
May 17 74.3 51.0 93 32
May 18 74.7 51.3 94 30
May 19 75.0 51.7 96 33
May 20 75.3 52.0 95 27
May 21 75.5 52.3 94 31
May 22 75.7 52.5 96 36
May 23 76.0 52.7 94 34
May 24 76.2 52.9 94 35
May 25 76.5 53.2 94 31
May 26 76.7 53.4 95 32
May 27 77.1 53.8 95 31
May 28 77.5 54.3 98 36
May 29 77.9 54.8 97 38
May 30 78.4 55.2 97 32
May 31 78.8 55.5 103 35
Weather Station Details
Years Station Coordinates
1977–2024 Normal 4NE location
1893–1977 Bloomington Normal location