Weather Forecast and Radar for Allendale, Illinois

Weather in Allendale, IL

Allendale, Illinois, United States has a humid continental climate, with hot summers and cold winters. The average temperature year-round is about 10°C (50°F). In the summer, the average temperature is around 22°C (72°F), while in the winter it drops to around -4°C (25°F). The warmest month of the year is July, with an average temperature of 24°C (75°F), and the coldest month is January, with an average temperature of -3°C (27°F).

Precipitation is fairly evenly distributed throughout the year, with an average of 890 millimeters (35 inches) of rain and 55 centimeters (22 inches) of snow annually. The wettest months are April and May, with around 129 millimeters (5 inches) of rain each month on average. The driest month is usually December, with an average of 48 millimeters (2 inches) of precipitation.

The area gets an average of 2,150 hours of sunshine each year, with the sunniest months being July and August, when the area gets around 270 hours of sunshine each month. The least sunny month is usually December, when the area gets an average of 120 hours of sunshine.

Fast Facts About Allendale, IL

As of 2020, the city population is 655.

Major Cities Nearby Allendale, IL

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Allendale, Illinois.