Climate averages 1991–2020

Champaign weather
in June.

A warm, wet month: the 3rd warmest and the 10th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 26.7°C Daytime mean, June

Average low 17.3°C Night-time mean, June

Rainfall 105 mm 11 days with ≥1 mm

Daylight 15 h Sunrise to sunset, per day

June is a warm month in Champaign: daytime highs average 26.7°C and nights cool to about 17.3°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 105 mm of rain on roughly 11 days, which makes June a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 58 min on an average June day.

The nearest other city in this atlas is Decatur (68 km away). In June its highs average 27.1°C, about as warm as Champaign, with 110 mm of rain.

Among the 498 cities listed in the United States, Champaign ranks joint 290th of 498 for the warmest June highs and joint 371st of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Champaign is 1.2°C cooler than that mean.

From June to July, average highs rise by 1.6°C to 28.3°C, and monthly rainfall falls from 105 mm to 92 mm.

The annual picture

June in context

30-year average

Average highAverage low°C

Monthly precipitation

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Champaign climate table

1991–2020

Monthly climate averages for Champaign, 1991–2020
Month	Average highHigh / low	Average low	Precipitation mm/month	Wet days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	1.5°C-6.7°C	-6.7°C	70	8.6	9.710 h
February	4.1°C-5.2°C	-5.2°C	59	7.4	10.711 h
March	10.2°C0.0°C	0.0°C	85	10.3	11.912 h
April	16.8°C6.1°C	6.1°C	115	11.8	13.213 h
May	22.2°C12.2°C	12.2°C	118	13.2	14.414 h
June, selected	26.7°C17.3°C	17.3°C	105	11.4	15.015 h
July	28.3°C19.3°C	19.3°C	92	10.3	14.715 h
August	27.9°C18.7°C	18.7°C	74	8.6	13.814 h
September	24.7°C14.9°C	14.9°C	77	7.3	12.512 h
October	17.9°C8.7°C	8.7°C	84	8.5	11.211 h
November	10.2°C1.9°C	1.9°C	83	8.7	10.010 h
December	3.9°C-3.5°C	-3.5°C	65	8.9	9.49 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

June in nearby cities

Distance from Champaign

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Champaign) is explained once on the Champaign year overview and on the Sources, method and limits page.