Climate Data Sumner
Illinois, United States
Monthly Averages. Elevation: 137m.
Sumner — Climate Data
Climate DataClimate Data
Annual average temperature · 30-year mean — not today
Best Time to Visit: Jun, Jul, Aug, Sep. Rainiest: May (117 mm). View current weather →
Annual Precip1105mm
117mm may · 63mm janWarmest31°C
JulColdest-7°C
JanWind1237km/hm/smph
Light wind Sumner has a mild climate with cool winters (Jan -7°C19°F) and warm summers (Jul 31°C88°F). Annual rainfall totals 1105mm.
Monthly Averages
HighLowPrecipitation
Monthly Wind Speed
km/hm/smph
Frequently Asked Questions
What is the climate like in Sumner?
Sumner has an average annual temperature of 12°C with 1105mm of rainfall per year. The warmest month is Jul (31°C) and the coldest is Jan (-7°C).
What is the hottest month in Sumner?
The hottest month in Sumner is Jul, with an average high of 31°C.
How much rain does Sumner get?
Sumner receives 1105mm of precipitation annually. The wettest month is May (117mm) and the driest is Jan (63mm).
When is the best time to visit Sumner?
The best time to visit Sumner is during Jun, Jul, Aug, Sep, when temperatures are comfortable and rainfall is relatively low.
Data: WorldClim 2.1