Bloomington weather in May: Bloomington, Illinois: normal highs, lows, rain and records for May
Bloomington in May has a normal high of 72°F and a normal low of 50°F, a daily mean of 61°F, rising from 68°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 4.83 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 10°C, 123 mm of precipitation in May.
- NOAA stationBloomington (5 mi W)
- Station IDUSC00110764
- Location40.49°N 89.09°W
- Elevation852 ft (260 m)
- From the center6 miles
- Population79,232
- Jan 31° 16°
- Feb 36° 19°
- Mar 49° 29°
- Apr 62° 39°
- May 72° 50°
- Jun 81° 60°
- Jul 84° 63°
- Aug 83° 61°
- Sep 76° 54°
- Oct 63° 42°
- Nov 48° 30°
- Dec 35° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bloomington in May?
The normal high is 72°F and the normal low 50°F, for a daily mean of 61.3°F. May is 10.8°F warmer than April and 9.2°F cooler than June. May is the 5th warmest month of the year in Bloomington and the wettest. Across the month the normal high rises 9°F, from 68°F on May 1 to 77°F on May 31. From one year to the next May's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Mays in three average between 58°F and 65°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 68°F | 45°F | 39% | 26% |
| May 8 | 70°F | 48°F | 40% | 27% |
| May 15 | 72°F | 50°F | 40% | 27% |
| May 22 | 74°F | 52°F | 39% | 26% |
| May 31 | 77°F | 55°F | 38% | 26% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 68°F | 45°F | 39% | 26% | 13 h 50 min |
| May 2 | 68°F | 46°F | 39% | 26% | 14 h |
| May 3 | 69°F | 46°F | 39% | 26% | 14 h |
| May 4 | 69°F | 46°F | 40% | 26% | 14 h |
| May 5 | 69°F | 47°F | 40% | 26% | 14 h |
| May 6 | 69°F | 47°F | 40% | 26% | 14 h 10 min |
| May 7 | 70°F | 48°F | 40% | 26% | 14 h 10 min |
| May 8 | 70°F | 48°F | 40% | 27% | 14 h 10 min |
| May 9 | 70°F | 48°F | 40% | 27% | 14 h 10 min |
| May 10 | 71°F | 49°F | 40% | 27% | 14 h 10 min |
| May 11 | 71°F | 49°F | 40% | 27% | 14 h 20 min |
| May 12 | 71°F | 49°F | 40% | 27% | 14 h 20 min |
| May 13 | 71°F | 50°F | 40% | 27% | 14 h 20 min |
| May 14 | 72°F | 50°F | 40% | 27% | 14 h 20 min |
| May 15 | 72°F | 50°F | 40% | 27% | 14 h 20 min |
| May 16 | 72°F | 51°F | 40% | 26% | 14 h 30 min |
| May 17 | 72°F | 51°F | 40% | 26% | 14 h 30 min |
| May 18 | 73°F | 51°F | 39% | 26% | 14 h 30 min |
| May 19 | 73°F | 52°F | 39% | 26% | 14 h 30 min |
| May 20 | 73°F | 52°F | 39% | 26% | 14 h 30 min |
| May 21 | 74°F | 52°F | 39% | 26% | 14 h 30 min |
| May 22 | 74°F | 52°F | 39% | 26% | 14 h 40 min |
| May 23 | 74°F | 53°F | 39% | 26% | 14 h 40 min |
| May 24 | 75°F | 53°F | 38% | 26% | 14 h 40 min |
| May 25 | 75°F | 53°F | 38% | 26% | 14 h 40 min |
| May 26 | 75°F | 54°F | 38% | 26% | 14 h 40 min |
| May 27 | 75°F | 54°F | 38% | 26% | 14 h 40 min |
| May 28 | 76°F | 54°F | 38% | 26% | 14 h 50 min |
| May 29 | 76°F | 55°F | 38% | 26% | 14 h 50 min |
| May 30 | 76°F | 55°F | 38% | 26% | 14 h 50 min |
| May 31 | 77°F | 55°F | 38% | 26% | 14 h 50 min |
- Normal high
- 72°FMay average
- Normal low
- 50°FMay average
- Precipitation
- 4.83 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 50 min to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 21
- Days at 80°F or more
- 11
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00110764; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bloomington in May?
On a given May day the chance of 0.01 inch or more is 39% on average, highest around May 10 (40%). In all, 4.83 in falls on 12 days of a normal May, 1 of them with an inch or more.
In a normal May in Bloomington, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00110764.
How does May in Bloomington compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, May normal highs run from 67°F in Waukegan to 79°F in Belleville; Bloomington's is 72°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.