Moline weather in December: Moline, Illinois: normal highs, lows, rain and records for December
Moline in December has a normal high of 37°F and a normal low of 21°F, a daily mean of 29°F, falling from 42°F on the 1st to 33°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 2.04 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −6°C, 52 mm of precipitation and 22 cm of snow in December.
- NOAA stationMoline Quad City International Airport
- Station IDUSW00014923
- Location41.47°N 90.52°W
- Elevation592 ft (180 m)
- From the center2 miles
- Population42,442
- Jan 32° 15°
- Feb 37° 19°
- Mar 50° 30°
- Apr 63° 40°
- May 74° 51°
- Jun 83° 61°
- Jul 86° 65°
- Aug 84° 63°
- Sep 78° 54°
- Oct 65° 43°
- Nov 50° 31°
- Dec 37° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Moline in December?
The normal high is 37°F and the normal low 21°F, for a daily mean of 28.9°F. December is 11.5°F cooler than November and 5.6°F warmer than January. December is the 10th warmest month of the year in Moline and the 10th wettest. Across the month the normal high falls 9°F, from 42°F on December 1 to 33°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 24°F and 34°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 42°F | 25°F | 31% | 16% |
| December 8 | 40°F | 23°F | 31% | 16% |
| December 15 | 37°F | 21°F | 31% | 15% |
| December 22 | 35°F | 19°F | 31% | 15% |
| December 31 | 33°F | 17°F | 31% | 15% |
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 | 42°F | 25°F | 31% | 16% | 9 h 30 min |
| December 2 | 42°F | 25°F | 31% | 16% | 9 h 20 min |
| December 3 | 42°F | 24°F | 31% | 16% | 9 h 20 min |
| December 4 | 41°F | 24°F | 31% | 16% | 9 h 20 min |
| December 5 | 41°F | 24°F | 31% | 16% | 9 h 20 min |
| December 6 | 40°F | 24°F | 31% | 16% | 9 h 20 min |
| December 7 | 40°F | 23°F | 31% | 16% | 9 h 20 min |
| December 8 | 40°F | 23°F | 31% | 16% | 9 h 20 min |
| December 9 | 39°F | 23°F | 31% | 16% | 9 h 20 min |
| December 10 | 39°F | 22°F | 31% | 16% | 9 h 20 min |
| December 11 | 38°F | 22°F | 31% | 16% | 9 h 10 min |
| December 12 | 38°F | 22°F | 31% | 15% | 9 h 10 min |
| December 13 | 38°F | 22°F | 31% | 15% | 9 h 10 min |
| December 14 | 37°F | 21°F | 31% | 15% | 9 h 10 min |
| December 15 | 37°F | 21°F | 31% | 15% | 9 h 10 min |
| December 16 | 37°F | 21°F | 31% | 15% | 9 h 10 min |
| December 17 | 36°F | 20°F | 31% | 15% | 9 h 10 min |
| December 18 | 36°F | 20°F | 31% | 15% | 9 h 10 min |
| December 19 | 36°F | 20°F | 31% | 15% | 9 h 10 min |
| December 20 | 35°F | 20°F | 31% | 15% | 9 h 10 min |
| December 21 | 35°F | 19°F | 31% | 15% | 9 h 10 min |
| December 22 | 35°F | 19°F | 31% | 15% | 9 h 10 min |
| December 23 | 35°F | 19°F | 31% | 15% | 9 h 10 min |
| December 24 | 34°F | 19°F | 31% | 15% | 9 h 10 min |
| December 25 | 34°F | 18°F | 31% | 15% | 9 h 10 min |
| December 26 | 34°F | 18°F | 31% | 15% | 9 h 10 min |
| December 27 | 34°F | 18°F | 31% | 15% | 9 h 10 min |
| December 28 | 34°F | 18°F | 31% | 15% | 9 h 10 min |
| December 29 | 33°F | 18°F | 31% | 15% | 9 h 10 min |
| December 30 | 33°F | 17°F | 31% | 15% | 9 h 10 min |
| December 31 | 33°F | 17°F | 31% | 15% | 9 h 10 min |
- Normal high
- 37°FDecember average
- Normal low
- 21°FDecember average
- Precipitation
- 2.04 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 8.8 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 30 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 USW00014923; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Moline in December?
On a given December day the chance of 0.01 inch or more is 31% on average, highest around December 5 (31%). In all, 2.04 in falls on 10 days of a normal December.
In a normal December in Moline, 27 nights fall to freezing, 11 days stay below freezing all day and snowfall averages 8.8 inches.
Snow falls on 6 days in a normal December.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014923.
How humid and windy is Moline in December?
At 3 p.m. the normal temperature is 30°F with 66% relative humidity and a dew point of 20°F; at 6 a.m. it is 22°F with 81% humidity. The wind averages 9.0 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 22°F | 17°F | 81% | 7.7 mph | 47% |
| 9 a.m. | 24°F | 18°F | 79% | 8.7 mph | 52% |
| noon | 29°F | 20°F | 69% | 10.6 mph | 45% |
| 3 p.m. | 30°F | 20°F | 66% | 10.8 mph | 53% |
| 6 p.m. | 27°F | 20°F | 74% | 8.9 mph | 47% |
| 9 p.m. | 25°F | 19°F | 77% | 8.7 mph | 53% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014923. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Moline?
The warmest December temperature on Moline's official record (since 1874) is 75°F, on December 15, 2021; the coldest is −24°F, on December 23, 1989. The wettest December brought 4.99 in (1982); the snowiest, 32.0 inches (2000).
The December mean against the 1991-2020 normal of 28.9°F: 2021 36.5°F (+7.6), 2022 28.5°F (−0.4), 2023 37.8°F (+8.9), 2024 32.1°F (+3.2), 2025 25.3°F (−3.6). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 36.5°F | +7.6°F | 1.42 in |
| 2022 | 28.5°F | −0.4°F | 1.70 in |
| 2023 | 37.8°F | +8.9°F | 2.77 in |
| 2024 | 32.1°F | +3.2°F | 1.65 in |
| 2025 | 25.3°F | −3.6°F | 1.97 in |
Source: records: ACIS, NWS threaded record MLIthr; recent months: ACIS, station USW00014923. Records and recent months use complete months only.
How does December in Moline compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, December normal highs run from 33°F in Galena to 48°F in Anna; Moline's is 37°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.