Climate averages 1991–2020

Cedar Rapids weather
in July.

A warm, wet month: the warmest and the joint 8th driest of the year.

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

Average high 27.7°C Daytime mean, July

Average low 18.8°C Night-time mean, July

Rainfall 100 mm 10 days with ≥1 mm

Daylight 15 h Sunrise to sunset, per day

July is a warm month in Cedar Rapids: daytime highs average 27.7°C and nights cool to about 18.8°C. By daytime temperature it is the warmest month of the year.

Expect about 100 mm of rain on roughly 10 days, which makes July a wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 55 min on an average July day.

The nearest other city in this atlas is Iowa City (40 km away). In July its highs average 28.2°C, 0.5°C warmer than Cedar Rapids, with 95 mm of rain.

Among the 498 cities listed in the United States, Cedar Rapids ranks joint 377th of 498 for the warmest July highs and joint 383rd of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Cedar Rapids is 2.6°C cooler than that mean.

From July to August, average highs fall by 0.8°C to 26.9°C, and monthly rainfall falls from 100 mm to 94 mm.

The annual picture

July 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

Cedar Rapids climate table

1991–2020

Monthly climate averages for Cedar Rapids, 1991–2020
Month	Average highHigh / low	Average low	Precipitation mm/month	Wet days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	-2.3°C-11.1°C	-11.1°C	38	7.0	9.59 h
February	0.3°C-9.0°C	-9.0°C	42	6.4	10.611 h
March	8.0°C-2.4°C	-2.4°C	66	8.6	11.912 h
April	15.0°C4.3°C	4.3°C	112	11.8	13.313 h
May	20.9°C10.9°C	10.9°C	126	13.2	14.515 h
June	25.8°C16.5°C	16.5°C	130	11.9	15.215 h
July, selected	27.7°C18.8°C	18.8°C	100	9.9	14.915 h
August	26.9°C17.8°C	17.8°C	94	9.3	13.914 h
September	23.2°C13.7°C	13.7°C	100	8.4	12.513 h
October	16.0°C7.0°C	7.0°C	73	8.6	11.111 h
November	8.0°C-0.3°C	-0.3°C	59	7.4	9.910 h
December	0.7°C-7.1°C	-7.1°C	46	6.9	9.29 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

July in nearby cities

Distance from Cedar Rapids

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 Cedar Rapids) is explained once on the Cedar Rapids year overview and on the Sources, method and limits page.