Davenport weather in December: Davenport, Iowa: normal highs, lows, rain and records for December
Davenport in December has a normal high of 35°F and a normal low of 20°F, a daily mean of 28°F, falling from 41°F on the 1st to 31°F by the 31st. Measurable precipitation falls on 9 days in a normal December, 1.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 2°C and low of −7°C, 42 mm of precipitation in December.
- NOAA stationDavenport
- Station IDUSW00094982
- Location41.61°N 90.58°W
- Elevation754 ft (230 m)
- Population100,938
- Jan 30° 14°
- Feb 34° 18°
- Mar 48° 29°
- Apr 61° 39°
- May 73° 51°
- Jun 81° 61°
- Jul 84° 64°
- Aug 82° 62°
- Sep 76° 53°
- Oct 63° 42°
- Nov 48° 30°
- Dec 35° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Davenport in December?
The normal high is 35°F and the normal low 20°F, for a daily mean of 27.6°F. December is 11.6°F cooler than November and 5.7°F warmer than January. December is the 10th warmest month of the year in Davenport and the 10th wettest. Across the month the normal high falls 10°F, from 41°F on December 1 to 31°F on December 31. From one year to the next December's mean temperature typically moves about 5.3°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 22°F and 33°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 41°F | 25°F | 30% | 14% |
| December 8 | 38°F | 22°F | 30% | 13% |
| December 15 | 35°F | 20°F | 29% | 12% |
| December 22 | 33°F | 18°F | 28% | 11% |
| December 31 | 31°F | 16°F | 26% | 10% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 41°F | 25°F | 30% | 14% | 9 h 20 min |
| December 2 | 40°F | 24°F | 30% | 14% | 9 h 20 min |
| December 3 | 40°F | 24°F | 30% | 14% | 9 h 20 min |
| December 4 | 39°F | 24°F | 30% | 14% | 9 h 20 min |
| December 5 | 39°F | 23°F | 30% | 13% | 9 h 20 min |
| December 6 | 39°F | 23°F | 30% | 13% | 9 h 20 min |
| December 7 | 38°F | 23°F | 30% | 13% | 9 h 20 min |
| December 8 | 38°F | 22°F | 30% | 13% | 9 h 20 min |
| December 9 | 37°F | 22°F | 30% | 13% | 9 h 20 min |
| December 10 | 37°F | 22°F | 30% | 13% | 9 h 10 min |
| December 11 | 36°F | 21°F | 30% | 13% | 9 h 10 min |
| December 12 | 36°F | 21°F | 29% | 13% | 9 h 10 min |
| December 13 | 36°F | 21°F | 29% | 13% | 9 h 10 min |
| December 14 | 35°F | 21°F | 29% | 13% | 9 h 10 min |
| December 15 | 35°F | 20°F | 29% | 12% | 9 h 10 min |
| December 16 | 35°F | 20°F | 29% | 12% | 9 h 10 min |
| December 17 | 34°F | 20°F | 29% | 12% | 9 h 10 min |
| December 18 | 34°F | 19°F | 28% | 12% | 9 h 10 min |
| December 19 | 34°F | 19°F | 28% | 12% | 9 h 10 min |
| December 20 | 34°F | 19°F | 28% | 12% | 9 h 10 min |
| December 21 | 33°F | 19°F | 28% | 12% | 9 h 10 min |
| December 22 | 33°F | 18°F | 28% | 11% | 9 h 10 min |
| December 23 | 33°F | 18°F | 27% | 11% | 9 h 10 min |
| December 24 | 32°F | 18°F | 27% | 11% | 9 h 10 min |
| December 25 | 32°F | 18°F | 27% | 11% | 9 h 10 min |
| December 26 | 32°F | 17°F | 27% | 11% | 9 h 10 min |
| December 27 | 32°F | 17°F | 27% | 11% | 9 h 10 min |
| December 28 | 32°F | 17°F | 26% | 11% | 9 h 10 min |
| December 29 | 31°F | 17°F | 26% | 11% | 9 h 10 min |
| December 30 | 31°F | 16°F | 26% | 10% | 9 h 10 min |
| December 31 | 31°F | 16°F | 26% | 10% | 9 h 10 min |
- Normal high
- 35°FDecember average
- Normal low
- 20°FDecember average
- Precipitation
- 1.64 inmonth total
- Days with precipitation
- 90.01 inch or more
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 20 min to 9 h 10 minDecember 1 to December 31
- Sunshine
- 63%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094982; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Davenport in December?
On a given December day the chance of 0.01 inch or more is 28% on average, highest around December 1 (30%). In all, 1.64 in falls on 9 days of a normal December.
In a normal December in Davenport, 27 nights fall to freezing and 12 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094982.
What are the records for December in Davenport?
The warmest December temperature on this station's record (since 1996) is 73°F, on December 15, 2021; the coldest is −18°F, on December 25, 2000. The wettest December brought 4.44 in (2015); the snowiest, 24.4 inches (2010).
The December mean against the 1991-2020 normal of 27.6°F: 2021 35.0°F (+7.4), 2022 26.6°F (−1.0), 2023 37.3°F (+9.7), 2024 30.6°F (+3.0), 2025 24.2°F (−3.4). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.0°F | +7.4°F | 1.83 in |
| 2022 | 26.6°F | −1.0°F | 1.36 in |
| 2023 | 37.3°F | +9.7°F | 2.44 in |
| 2024 | 30.6°F | +3.0°F | 1.24 in |
| 2025 | 24.2°F | −3.4°F | 1.36 in |
Source: records: ACIS, station USW00094982; recent months: ACIS, station USW00094982. Records and recent months use complete months only.
How does December in Davenport compare across Iowa?
Across the 132 places PlainClimate covers in Iowa, December normal highs run from 27°F in Northwood to 38°F in Keokuk; Davenport's is 35°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.