Cedar Rapids, IA Climate & Monthly Averages
The climate of Cedar Rapids
Cedar Rapids has a humid continental climate, marked by warm summers and cold, often snowy winters. Average daytime highs range from about 29°F (-2°C) in January to around 83°F (28°C) in July, and the city records roughly 110 days of measurable precipitation a year.
Climate quick facts
- Hottest month: July - highs near 83°F (28°C)
- Coldest month: January - highs near 29°F (-2°C)
- Record high: 100°F (38°C) · Record low: -32°F (-36°C) (2015–2024)
- Wettest month: June (10 rainy days) · Sunniest: July (12.4 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 18 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 83°F (28°C) and overnight lows stay near 66°F (19°C). The coolest month is January, with typical highs of 29°F (-2°C) and lows around 14°F (-10°C). Based on 2015–2024 weather data, temperatures have reached as high as 100°F (38°C) and dropped as low as -32°F (-36°C).
Rain, sun and snow
June is usually the wettest month. It brings about 4.7 inches (118 mm) of rain over 10 days, while February is the driest. July brings the most sunshine, averaging 12.4 hours of sun a day. Snow falls on about 18 days in a typical year, mostly from October through April.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 29° | 14° | 8 | 1.9 in | 5.6 h/day | 77% |
| February | 33° | 15° | 6 | 1.5 in | 7.5 h/day | 71% |
| March | 48° | 30° | 9 | 2.8 in | 7.9 h/day | 67% |
| April | 59° | 39° | 11 | 3.8 in | 8.8 h/day | 64% |
| May | 71° | 52° | 12 | 4.5 in | 10.0 h/day | 69% |
| June | 81° | 63° | 10 | 4.7 in | 12.0 h/day | 68% |
| July | 83° | 66° | 10 | 3.3 in | 12.4 h/day | 75% |
| August | 81° | 64° | 10 | 3.6 in | 11.4 h/day | 74% |
| September | 77° | 59° | 9 | 3.6 in | 10.0 h/day | 71% |
| October | 62° | 46° | 10 | 3.7 in | 7.6 h/day | 67% |
| November | 48° | 32° | 7 | 2.7 in | 6.7 h/day | 70% |
| December | 37° | 23° | 7 | 2.2 in | 5.4 h/day | 72% |
Cedar Rapids month by month
Cedar Rapids weather in January
January brings highs around 29°F (-2°C), lows near 14°F (-10°C), about 8 wet days and roughly 6 snowy days - typically the coldest month of the year in Cedar Rapids.
Cedar Rapids weather in February
February brings highs around 33°F (1°C), lows near 15°F (-9°C), about 6 wet days and roughly 3 snowy days - typically the driest month of the year in Cedar Rapids.
Cedar Rapids weather in March
March brings highs around 48°F (9°C), lows near 30°F (-1°C), about 9 wet days and roughly 2 snowy days.
Cedar Rapids weather in April
April brings highs around 59°F (15°C), lows near 39°F (4°C), about 11 wet days and roughly 1 snowy days.
Cedar Rapids weather in May
May brings highs around 71°F (22°C), lows near 52°F (11°C), about 12 wet days.
Cedar Rapids weather in June
June brings highs around 81°F (27°C), lows near 63°F (17°C), about 10 wet days - typically the wettest month of the year in Cedar Rapids.
Cedar Rapids weather in July
July brings highs around 83°F (28°C), lows near 66°F (19°C), about 10 wet days - typically the hottest month and the sunniest month of the year in Cedar Rapids.
Cedar Rapids weather in August
August brings highs around 81°F (27°C), lows near 64°F (18°C), about 10 wet days.
Cedar Rapids weather in September
September brings highs around 77°F (25°C), lows near 59°F (15°C), about 9 wet days.
Cedar Rapids weather in October
October brings highs around 62°F (17°C), lows near 46°F (8°C), about 10 wet days.
Cedar Rapids weather in November
November brings highs around 48°F (9°C), lows near 32°F (0°C), about 7 wet days and roughly 1 snowy days.
Cedar Rapids weather in December
December brings highs around 37°F (3°C), lows near 23°F (-5°C), about 7 wet days and roughly 3 snowy days.
Seasons in Cedar Rapids
Spring (March through May)
Spring in Cedar Rapids is crisp but comfortable, with daytime highs averaging 59°F (15°C) and nights around 40°F (5°C); expect showers on roughly 33 days across the season, plus around 4 snowy days.
Summer (June through August)
Summer in Cedar Rapids brings hot afternoons, with daytime highs averaging 82°F (28°C) and nights around 64°F (18°C); expect showers on roughly 30 days across the season.
Fall (September through November)
Fall in Cedar Rapids stays on the cool side of mild, with daytime highs averaging 62°F (17°C) and nights around 46°F (8°C); expect showers on roughly 25 days across the season.
Winter (December through February)
Winter in Cedar Rapids is frigid, with daytime highs averaging 33°F (1°C) and nights around 17°F (-8°C); expect showers on roughly 22 days across the season, plus around 12 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Climate questions, answered
What is the average temperature in Cedar Rapids?
Is Cedar Rapids hot in summer?
Is Cedar Rapids cold in winter?
How many rainy days does Cedar Rapids get in a year?
Best time to visit Cedar Rapids
The best time to visit Cedar Rapids is generally June to October, when this window offers the warmest, brightest days of the year. Daytime temperatures in that window typically sit near 77°F (25°C).
Pack for Cedar Rapids with a heavy insulated coat, hat and gloves for winter; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - July nights average 66°F (19°C).
Cedar Rapids temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.