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DeWitt, IA weather and climate

Clinton County, IA · population 5,535 · about 715 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at DeWitt's own coordinates.

The year at a glance

Sunny days
192
clear or partly cloudy, per year
Precipitation
38 in
per year
Wet days
120
rain or snow per year
Snowfall
29 in
per year
Hot days
14
above 90 °F
Freezing nights
132
at or below 32 °F
Humidity
71%
average relative
Average temperature
50 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
255075JanMarMayJulSepNovDaily high, Jan: 30 °FDaily high, Feb: 35 °FDaily high, Mar: 48 °FDaily high, Apr: 62 °FDaily high, May: 73 °FDaily high, Jun: 81 °FDaily high, Jul: 84 °FDaily high, Aug: 82 °FDaily high, Sep: 76 °FDaily high, Oct: 63 °FDaily high, Nov: 48 °FDaily high, Dec: 35 °FDaily low, Jan: 14 °FDaily low, Feb: 18 °FDaily low, Mar: 29 °FDaily low, Apr: 40 °FDaily low, May: 51 °FDaily low, Jun: 61 °FDaily low, Jul: 64 °FDaily low, Aug: 62 °FDaily low, Sep: 54 °FDaily low, Oct: 42 °FDaily low, Nov: 30 °FDaily low, Dec: 20 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high303548627381848276634835
Daily low141829405161646254423020

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovDeWitt, Jan: 1.8 inDeWitt, Feb: 1.9 inDeWitt, Mar: 2.7 inDeWitt, Apr: 4.3 inDeWitt, May: 4.7 inDeWitt, Jun: 4.7 inDeWitt, Jul: 3.8 inDeWitt, Aug: 3.7 inDeWitt, Sep: 3.6 inDeWitt, Oct: 2.7 inDeWitt, Nov: 2.4 inDeWitt, Dec: 2.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
DeWitt1.81.92.74.34.74.73.83.73.62.72.42.1

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovDeWitt, Jan: 13 daysDeWitt, Feb: 12 daysDeWitt, Mar: 15 daysDeWitt, Apr: 14 daysDeWitt, May: 15 daysDeWitt, Jun: 16 daysDeWitt, Jul: 20 daysDeWitt, Aug: 21 daysDeWitt, Sep: 20 daysDeWitt, Oct: 17 daysDeWitt, Nov: 15 daysDeWitt, Dec: 13 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
DeWitt131215141516202120171513

Compare DeWitt with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

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About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).