Woodstock, Illinois Climate by Month
Woodstock, Illinois, United States
Warm summers and freezing winters, with rain spread through the year.
The climate in Woodstock is one of warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 30°F (-1°C) in January to 83°F (29°C) in July, and January nights average 13°F (-10°C). About 38 in (964 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 83°F(29°C)
- Average high, July
- Coldest nights
- 13°F(-10°C)
- Average low, January
- Rain per year
- 38 in(964 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: July
Best and worst months in Woodstock
Best for weatherThe most comfortable weather comes in September, with highs around 75°F (24°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 30°F (-1°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)
Woodstock weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 30°F(-1°C) | 13°F(-10°C) | 1.7 in(43 mm) | 100% | 1.4 |
| FebFebruary | 34°F(1°C) | 17°F(-9°C) | 1.5 in(39 mm) | 87% | 2.5 |
| MarMarch | 46°F(8°C) | 27°F(-3°C) | 2.3 in(59 mm) | 69% | 3.6 |
| AprApril | 58°F(15°C) | 37°F(3°C) | 4.1 in(105 mm) | 63% | 4.5 |
| MayMay | 71°F(21°C) | 47°F(8°C) | 4.4 in(113 mm) | 65% | 5.1 |
| JunJune | 80°F(27°C) | 57°F(14°C) | 4.6 in(117 mm) | 72% | 5.8 |
| JulJuly | 83°F(29°C) | 61°F(16°C) | 3.8 in(97 mm) | 70% | 5.9 |
| AugAugust | 81°F(27°C) | 60°F(15°C) | 4.2 in(107 mm) | 75% | 5.1 |
| SepSeptemberBest | 75°F(24°C) | 52°F(11°C) | 3.8 in(97 mm) | 71% | 4.3 |
| OctOctober | 62°F(17°C) | 40°F(5°C) | 2.9 in(74 mm) | 70% | 2.7 |
| NovNovember | 47°F(8°C) | 29°F(-1°C) | 2.4 in(61 mm) | 77% | 1.7 |
| DecDecember | 34°F(1°C) | 19°F(-7°C) | 2.0 in(52 mm) | 82% | 1.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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