Sidney weather in December: Sidney, Nebraska: normal highs, lows, rain and records for December
Sidney in December has a normal high of 42°F and a normal low of 14°F, a daily mean of 28°F, falling from 45°F on the 1st to 41°F by the 31st. Measurable precipitation falls on 3 days in a normal December, 0.20 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 5°C and low of −10°C, 5 mm of precipitation in December.
- NOAA stationSidney Municipal Airport
- Station IDUSW00024030
- Location41.10°N 102.98°W
- Elevation4,309 ft (1,313 m)
- Population6,483
- Jan 42° 14°
- Feb 44° 15°
- Mar 54° 23°
- Apr 61° 30°
- May 70° 40°
- Jun 82° 51°
- Jul 90° 57°
- Aug 88° 55°
- Sep 79° 46°
- Oct 64° 32°
- Nov 51° 21°
- Dec 42° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sidney in December?
The normal high is 42°F and the normal low 14°F, for a daily mean of 27.5°F. December is 8.7°F cooler than November and 0.1°F cooler than January. December is the 12th warmest month of the year in Sidney and the 11th wettest. Across the month the normal high falls 4°F, from 45°F on December 1 to 41°F on December 31. From one year to the next December's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 24°F and 31°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 11%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 45°F | 16°F | 11% | 2% |
| December 8 | 43°F | 14°F | 11% | 2% |
| December 15 | 41°F | 13°F | 11% | 3% |
| December 22 | 40°F | 13°F | 11% | 2% |
| December 31 | 41°F | 13°F | 10% | 2% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 23)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 45°F | 16°F | 11% | 2% | 9 h 30 min |
| December 2 | 45°F | 16°F | 11% | 2% | 9 h 30 min |
| December 3 | 44°F | 16°F | 11% | 2% | 9 h 30 min |
| December 4 | 44°F | 15°F | 11% | 2% | 9 h 20 min |
| December 5 | 44°F | 15°F | 11% | 2% | 9 h 20 min |
| December 6 | 43°F | 15°F | 11% | 2% | 9 h 20 min |
| December 7 | 43°F | 15°F | 11% | 2% | 9 h 20 min |
| December 8 | 43°F | 14°F | 11% | 2% | 9 h 20 min |
| December 9 | 42°F | 14°F | 11% | 2% | 9 h 20 min |
| December 10 | 42°F | 14°F | 11% | 2% | 9 h 20 min |
| December 11 | 42°F | 14°F | 11% | 2% | 9 h 20 min |
| December 12 | 42°F | 14°F | 11% | 2% | 9 h 20 min |
| December 13 | 41°F | 13°F | 11% | 2% | 9 h 20 min |
| December 14 | 41°F | 13°F | 11% | 2% | 9 h 20 min |
| December 15 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 16 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 17 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 18 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 19 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 20 | 41°F | 13°F | 11% | 3% | 9 h 10 min |
| December 21 | 40°F | 13°F | 11% | 2% | 9 h 10 min |
| December 22 | 40°F | 13°F | 11% | 2% | 9 h 10 min |
| December 23 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 24 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 25 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 26 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 27 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 28 | 40°F | 12°F | 11% | 2% | 9 h 10 min |
| December 29 | 41°F | 12°F | 11% | 2% | 9 h 10 min |
| December 30 | 41°F | 13°F | 11% | 2% | 9 h 10 min |
| December 31 | 41°F | 13°F | 10% | 2% | 9 h 20 min |
- Normal high
- 42°FDecember average
- Normal low
- 14°FDecember average
- Precipitation
- 0.20 inmonth total
- Days with precipitation
- 30.01 inch or more
- Nights at 32°F or colder
- 31
- Daylight
- 9 h 30 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024030; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sidney in December?
On a given December day the chance of 0.01 inch or more is 11% on average, highest around December 16 (11%). In all, 0.20 in falls on 3 days of a normal December.
In a normal December in Sidney, 31 nights fall to freezing and 8 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024030.
How humid and windy is Sidney in December?
At 3 p.m. the normal temperature is 35°F with 48% relative humidity and a dew point of 17°F; at 6 a.m. it is 19°F with 74% humidity. The wind averages 12.1 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 19°F | 12°F | 74% | 11.4 mph | – |
| 9 a.m. | 25°F | 15°F | 66% | 12.1 mph | – |
| noon | 35°F | 17°F | 49% | 15.1 mph | – |
| 3 p.m. | 35°F | 17°F | 48% | 13.9 mph | – |
| 6 p.m. | 25°F | 15°F | 66% | 10.9 mph | – |
| 9 p.m. | 22°F | 14°F | 71% | 11.0 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024030. 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 Sidney?
The warmest December temperature on this station's record (since 1948) is 78°F, on December 2, 2021; the coldest is −23°F, on December 21, 1983. The wettest December brought 1.39 in (1973); the snowiest, 17.5 inches (1978).
The December mean against the 1991-2020 normal of 27.5°F: 2021 33.6°F (+6.1), 2022 23.9°F (−3.6), 2023 33.4°F (+5.9), 2024 34.1°F (+6.6), 2025 37.7°F (+10.2). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 33.6°F | +6.1°F | 0.03 in |
| 2022 | 23.9°F | −3.6°F | 0.14 in |
| 2023 | 33.4°F | +5.9°F | 0.45 in |
| 2024 | 34.1°F | +6.6°F | 0.01 in |
| 2025 | 37.7°F | +10.2°F | 0.08 in |
Source: records: ACIS, station USW00024030; recent months: ACIS, station USW00024030. Records and recent months use complete months only.
How does December in Sidney compare across Nebraska?
Across the 137 places PlainClimate covers in Nebraska, December normal highs run from 34°F in Creighton to 44°F in Haigler; Sidney's is 42°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.