Kankakee weather in May: Kankakee, Illinois: normal highs, lows, rain and records for May
Kankakee in May has a normal high of 73°F and a normal low of 51°F, a daily mean of 62°F, rising from 67°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 5.15 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 11°C, 131 mm of precipitation in May.
- NOAA stationKankakee Metro Wastewater
- Station IDUSC00114603
- Location41.13°N 87.89°W
- Elevation600 ft (183 m)
- Population23,535
- Jan 33° 16°
- Feb 37° 20°
- Mar 49° 29°
- Apr 61° 39°
- May 73° 51°
- Jun 82° 61°
- Jul 85° 65°
- Aug 83° 63°
- Sep 78° 55°
- Oct 65° 43°
- Nov 50° 32°
- Dec 38° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Kankakee in May?
The normal high is 73°F and the normal low 51°F, for a daily mean of 61.8°F. May is 11.5°F warmer than April and 9.7°F cooler than June. May is the 5th warmest month of the year in Kankakee and the 2nd wettest. Across the month the normal high rises 11°F, from 67°F on May 1 to 78°F on May 31. From one year to the next May's mean temperature typically moves about 3.4°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 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 67°F | 45°F | 38% | 25% |
| May 8 | 70°F | 48°F | 38% | 25% |
| May 15 | 72°F | 51°F | 38% | 25% |
| May 22 | 75°F | 53°F | 37% | 24% |
| May 31 | 78°F | 56°F | 36% | 23% |
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 | 67°F | 45°F | 38% | 25% | 14 h |
| May 2 | 68°F | 46°F | 38% | 25% | 14 h |
| May 3 | 68°F | 46°F | 38% | 25% | 14 h |
| May 4 | 68°F | 47°F | 38% | 25% | 14 h |
| May 5 | 69°F | 47°F | 38% | 25% | 14 h 10 min |
| May 6 | 69°F | 47°F | 38% | 25% | 14 h 10 min |
| May 7 | 69°F | 48°F | 38% | 25% | 14 h 10 min |
| May 8 | 70°F | 48°F | 38% | 25% | 14 h 10 min |
| May 9 | 70°F | 49°F | 38% | 25% | 14 h 10 min |
| May 10 | 71°F | 49°F | 38% | 25% | 14 h 20 min |
| May 11 | 71°F | 49°F | 38% | 25% | 14 h 20 min |
| May 12 | 71°F | 50°F | 38% | 25% | 14 h 20 min |
| May 13 | 72°F | 50°F | 38% | 25% | 14 h 20 min |
| May 14 | 72°F | 50°F | 38% | 25% | 14 h 30 min |
| May 15 | 72°F | 51°F | 38% | 25% | 14 h 30 min |
| May 16 | 73°F | 51°F | 38% | 24% | 14 h 30 min |
| May 17 | 73°F | 51°F | 38% | 24% | 14 h 30 min |
| May 18 | 73°F | 52°F | 38% | 24% | 14 h 30 min |
| May 19 | 74°F | 52°F | 38% | 24% | 14 h 30 min |
| May 20 | 74°F | 53°F | 38% | 24% | 14 h 40 min |
| May 21 | 74°F | 53°F | 38% | 24% | 14 h 40 min |
| May 22 | 75°F | 53°F | 37% | 24% | 14 h 40 min |
| May 23 | 75°F | 54°F | 37% | 24% | 14 h 40 min |
| May 24 | 75°F | 54°F | 37% | 24% | 14 h 40 min |
| May 25 | 76°F | 54°F | 37% | 23% | 14 h 50 min |
| May 26 | 76°F | 55°F | 37% | 23% | 14 h 50 min |
| May 27 | 76°F | 55°F | 37% | 23% | 14 h 50 min |
| May 28 | 77°F | 55°F | 37% | 23% | 14 h 50 min |
| May 29 | 77°F | 56°F | 36% | 23% | 14 h 50 min |
| May 30 | 77°F | 56°F | 36% | 23% | 14 h 50 min |
| May 31 | 78°F | 56°F | 36% | 23% | 14 h 50 min |
- Normal high
- 73°FMay average
- Normal low
- 51°FMay average
- Precipitation
- 5.15 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 14 h to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 19
- Days at 80°F or more
- 9
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00114603; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Kankakee in May?
On a given May day the chance of 0.01 inch or more is 38% on average, highest around May 11 (38%). In all, 5.15 in falls on 12 days of a normal May, 1 of them with an inch or more.
In a normal May in Kankakee, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00114603.
What are the records for May in Kankakee?
The May mean against the 1991-2020 normal of 61.8°F: 2022 63.8°F (+2.0), 2023 62.3°F (+0.5), 2024 65.4°F (+3.6), 2025 59.5°F (−2.3), 2026 60.8°F (−1.0). 3 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 63.8°F | +2.0°F | 4.59 in |
| 2023 | 62.3°F | +0.5°F | 2.42 in |
| 2024 | 65.4°F | +3.6°F | 3.80 in |
| 2025 | 59.5°F | −2.3°F | 3.56 in |
| 2026 | 60.8°F | −1.0°F | 1.58 in |
Source: recent months: ACIS, station USC00114603. Records and recent months use complete months only.
How does May in Kankakee 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; Kankakee's is 73°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.