Climate almanac
Douglas
Illinois, US · 41.83°, -87.62°
What is the climate like in Douglas?
The best time to visit Douglas is typically July – September, with trip comfort peaking in September (7.1/10). Douglas is warmest in August, when daily highs average 78°F (25°C), and coolest in January, when lows fall to about 25°F (-4°C). The wettest month is typically October and the driest is September; the year sees roughly 47 in of precipitation.
- Best time to visitJuly – September — comfort peaks in September (7.1/10)
- Warmest monthAugust — average high 78°F (25°C)
- Coolest monthJanuary — average low 25°F (-4°C)
- Wettest monthOctober (5.5 in)
- Driest monthSeptember (2.7 in)
- Annual precipitation47 in