Palatine Climate by Month
Palatine, Illinois, United States
Warm summers and freezing winters, with rain spread through the year.
The climate in Palatine is one of warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 32°F (0°C) in January to 84°F (29°C) in July, and January nights average 16°F (-9°C). It gets 37 in (943 mm) of rain a year, spread across the months.
- Warmest month
- 84°F(29°C)
- Average high, July
- Coldest nights
- 16°F(-9°C)
- Average low, January
- Rain per year
- 37 in(943 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: July
Best and worst months in Palatine
Best for weatherThe most comfortable weather comes in September, with highs around 76°F (24°C) and about 3.4 in (87 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 32°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)
Palatine weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 16°F(-9°C) | 1.9 in(47 mm) | 91% | 1.4 |
| FebFebruary | 36°F(2°C) | 19°F(-7°C) | 1.6 in(41 mm) | 78% | 2.4 |
| MarMarch | 47°F(9°C) | 29°F(-2°C) | 2.2 in(57 mm) | 64% | 3.6 |
| AprApril | 59°F(15°C) | 38°F(3°C) | 4.1 in(105 mm) | 60% | 4.5 |
| MayMay | 71°F(22°C) | 48°F(9°C) | 4.3 in(110 mm) | 63% | 5.1 |
| JunJune | 80°F(27°C) | 58°F(15°C) | 4.4 in(112 mm) | 70% | 5.8 |
| JulJuly | 84°F(29°C) | 63°F(17°C) | 3.6 in(91 mm) | 71% | 5.9 |
| AugAugust | 82°F(28°C) | 62°F(17°C) | 4.3 in(109 mm) | 75% | 5.1 |
| SepSeptemberBest | 76°F(24°C) | 54°F(12°C) | 3.4 in(87 mm) | 72% | 4.3 |
| OctOctober | 64°F(18°C) | 43°F(6°C) | 2.8 in(70 mm) | 65% | 2.7 |
| NovNovember | 49°F(9°C) | 31°F(0°C) | 2.4 in(62 mm) | 71% | 1.7 |
| DecDecember | 36°F(2°C) | 21°F(-6°C) | 2.0 in(52 mm) | 75% | 1.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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