Evanston Climate by Month
Evanston, 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 Evanston's climate in short. Afternoon highs range from 33°F (0°C) in January to 83°F (28°C) in July, and January nights average 18°F (-8°C). About 38 in (959 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 83°F(28°C)
- Average high, July
- Coldest nights
- 18°F(-8°C)
- Average low, January
- Rain per year
- 38 in(959 mm)
- No clear rainy season
- Humidity
- 73%
- Sunniest: July
Best and worst months in Evanston
Best for weatherSeptember is the best time for weather in Evanston: highs near 75°F (24°C) and about 3.2 in (82 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)
Evanston weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 33°F(0°C) | 18°F(-8°C) | 2.1 in(53 mm) | 87% | 1.4 |
| FebFebruary | 37°F(3°C) | 21°F(-6°C) | 1.8 in(46 mm) | 74% | 2.4 |
| MarMarch | 46°F(8°C) | 30°F(-1°C) | 2.3 in(59 mm) | 77% | 3.6 |
| AprApril | 58°F(15°C) | 39°F(4°C) | 4.3 in(110 mm) | 69% | 4.5 |
| MayMay | 69°F(21°C) | 48°F(9°C) | 4.3 in(110 mm) | 71% | 5.1 |
| JunJune | 78°F(26°C) | 57°F(14°C) | 4.2 in(107 mm) | 73% | 5.8 |
| JulJuly | 83°F(28°C) | 63°F(17°C) | 3.4 in(87 mm) | 72% | 5.9 |
| AugAugust | 81°F(27°C) | 63°F(17°C) | 4.1 in(105 mm) | 75% | 5.1 |
| SepSeptemberBest | 75°F(24°C) | 55°F(13°C) | 3.2 in(82 mm) | 71% | 4.3 |
| OctOctober | 63°F(17°C) | 44°F(7°C) | 3.0 in(76 mm) | 65% | 2.7 |
| NovNovember | 48°F(9°C) | 33°F(1°C) | 2.7 in(68 mm) | 70% | 1.7 |
| DecDecember | 37°F(3°C) | 23°F(-5°C) | 2.2 in(56 mm) | 72% | 1.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Evanston →- 🇺🇸MuskegonMichigan, United States · Pop. 38k99%matchSame summer highsSame winter lowsEvanston vs Muskegon →
- 🇺🇸IthacaNew York, United States · Pop. 31k98%matchSame summer highsSame winter lowsEvanston vs Ithaca →
- 🇺🇸VestalNew York, United States · Pop. 28k98%matchSame summer highsSame winter lowsEvanston vs Vestal →
- 🇺🇸LorainOhio, United States · Pop. 64k98%matchSame summer highsSame winter lowsEvanston vs Lorain →
- 🇺🇸FindlayOhio, United States · Pop. 41k98%matchSame winter lowsSame sunshineEvanston vs Findlay →