Kankakee Climate by Month
Kankakee, Illinois, United States
Warm summers and freezing winters, with rain spread through the year.
Warm summers and freezing winters, with rain spread through the year: that's Kankakee's climate in short. Expect highs of 85°F (29°C) in July and 33°F (0°C) in January, with the coldest nights (January) near 17°F (-9°C). It gets 39 in (995 mm) of rain a year, spread across the months.
- Warmest month
- 85°F(29°C)
- Average high, July
- Coldest nights
- 17°F(-9°C)
- Average low, January
- Rain per year
- 39 in(995 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: July
Best and worst months in Kankakee
Best for weatherMay and September are the best time for weather in Kankakee: highs near 76°F (24°C) and about 4.1 in (103 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 33°F (0°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Kankakee weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 33°F(0°C) | 17°F(-9°C) | 1.8 in(46 mm) | 89% | 1.5 |
| FebFebruary | 37°F(3°C) | 19°F(-7°C) | 1.6 in(40 mm) | 76% | 2.5 |
| MarMarch | 49°F(9°C) | 30°F(-1°C) | 2.6 in(65 mm) | 74% | 3.6 |
| AprApril | 62°F(17°C) | 40°F(4°C) | 4.4 in(112 mm) | 64% | 4.5 |
| MayMayBest | 73°F(23°C) | 50°F(10°C) | 4.5 in(114 mm) | 69% | 5.1 |
| JunJune | 82°F(28°C) | 60°F(15°C) | 4.7 in(119 mm) | 70% | 5.8 |
| JulJuly | 85°F(29°C) | 63°F(17°C) | 4.1 in(103 mm) | 73% | 6.0 |
| AugAugust | 83°F(28°C) | 62°F(16°C) | 3.6 in(92 mm) | 74% | 5.2 |
| SepSeptemberBest | 78°F(26°C) | 54°F(12°C) | 3.6 in(92 mm) | 69% | 4.4 |
| OctOctober | 66°F(19°C) | 42°F(6°C) | 3.1 in(79 mm) | 71% | 2.8 |
| NovNovember | 50°F(10°C) | 32°F(0°C) | 2.8 in(71 mm) | 80% | 1.8 |
| DecDecember | 38°F(3°C) | 22°F(-5°C) | 2.4 in(62 mm) | 89% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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