Climate averages 1991–2020
Davenport weather
in December.
A cold month with moderate precipitation: the 10th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Davenport: daytime highs average 1.9°C and nights cool to about -5.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 53 mm of precipitation on roughly 7 days, which makes December a month with moderate precipitation (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 14 min on an average December day.
The nearest other city in this atlas is Iowa City (81 km away). In December its highs average 1.4°C, about as warm as Davenport, with 49 mm of precipitation.
Among the 498 cities listed in the United States, Davenport ranks joint 453rd of 498 for the warmest December highs and joint 158th of 498 for the driest December (precipitation, lowest first). The mean December high of those 498 cities is 10.5°C; Davenport is 8.6°C cooler than that mean.
From December to January, average highs fall by 2.8°C to -0.9°C, and monthly precipitation falls from 53 mm to 46 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Davenport climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.9°C-9.3°C | -9.3°C | 46 | 7.6 | 9.510 h |
| February | 1.8°C-7.2°C | -7.2°C | 49 | 6.7 | 10.611 h |
| March | 8.9°C-0.9°C | -0.9°C | 70 | 9.5 | 11.912 h |
| April | 15.6°C5.5°C | 5.5°C | 108 | 12.0 | 13.313 h |
| May | 21.6°C12.0°C | 12.0°C | 119 | 12.8 | 14.514 h |
| June | 26.6°C17.5°C | 17.5°C | 118 | 11.9 | 15.115 h |
| July | 28.5°C19.9°C | 19.9°C | 91 | 10.1 | 14.915 h |
| August | 27.6°C19.0°C | 19.0°C | 90 | 9.2 | 13.814 h |
| September | 23.8°C14.8°C | 14.8°C | 88 | 8.3 | 12.513 h |
| October | 16.7°C8.2°C | 8.2°C | 70 | 8.5 | 11.111 h |
| November | 8.8°C1.1°C | 1.1°C | 61 | 7.8 | 9.910 h |
| December, selected | 1.9°C-5.4°C | -5.4°C | 53 | 7.2 | 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
December in nearby cities
- Iowa City in DecemberUnited States · 81 kmHigh 1.4°C · Low -6.3°C · 49 mm precipitation
- Cedar Rapids in DecemberUnited States · 104 kmHigh 0.7°C · Low -7.1°C · 46 mm precipitation
- Peoria (Illinois), United States in DecemberUnited States · 124 kmHigh 3.3°C · Low -4.0°C · 57 mm rain
- Rockford in DecemberUnited States · 148 kmHigh 1.1°C · Low -6.0°C · 53 mm precipitation
- Bloomington (Illinois), United States in DecemberUnited States · 176 kmHigh 3.3°C · Low -4.1°C · 59 mm rain
- Aurora (Illinois), United States in DecemberUnited States · 189 kmHigh 2.0°C · Low -5.1°C · 55 mm precipitation
- Madison in DecemberUnited States · 198 kmHigh -0.1°C · Low -7.4°C · 48 mm precipitation
- Elgin in DecemberUnited States · 199 kmHigh 1.7°C · Low -5.3°C · 55 mm precipitation
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Davenport) is explained once on the Davenport year overview and on the Sources, method and limits page.