Williston weather in December: Williston, North Dakota: normal highs, lows, rain and records for December
Williston in December has a normal high of 26°F and a normal low of 6°F, a daily mean of 16°F, falling from 31°F on the 1st to 23°F by the 31st. Measurable precipitation falls on 9 days in a normal December, 0.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −3°C and low of −14°C, 16 mm of precipitation and 26 cm of snow in December.
- NOAA stationWilliston Sloulin Field
- Station IDUSW00094014
- Location48.17°N 103.64°W
- Elevation1,902 ft (580 m)
- Population28,821
- Jan 22° 1°
- Feb 27° 6°
- Mar 40° 18°
- Apr 56° 29°
- May 67° 40°
- Jun 77° 50°
- Jul 85° 56°
- Aug 84° 54°
- Sep 73° 44°
- Oct 56° 30°
- Nov 38° 17°
- Dec 26° 6°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Williston in December?
The normal high is 26°F and the normal low 6°F, for a daily mean of 16.1°F. December is 11.7°F cooler than November and 4.5°F warmer than January. December is the 10th warmest month of the year in Williston and the 9th wettest. Across the month the normal high falls 8°F, from 31°F on December 1 to 23°F on December 31. From one year to the next December's mean temperature typically moves about 6.6°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 10°F and 23°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 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 31°F | 11°F | 24% | 5% |
| December 8 | 28°F | 9°F | 25% | 5% |
| December 15 | 26°F | 6°F | 26% | 6% |
| December 22 | 24°F | 4°F | 27% | 6% |
| December 31 | 23°F | 2°F | 28% | 6% |
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 | 31°F | 11°F | 24% | 5% | 8 h 40 min |
| December 2 | 31°F | 11°F | 24% | 5% | 8 h 40 min |
| December 3 | 30°F | 10°F | 24% | 5% | 8 h 40 min |
| December 4 | 30°F | 10°F | 24% | 5% | 8 h 40 min |
| December 5 | 29°F | 10°F | 24% | 5% | 8 h 30 min |
| December 6 | 29°F | 9°F | 25% | 5% | 8 h 30 min |
| December 7 | 29°F | 9°F | 25% | 5% | 8 h 30 min |
| December 8 | 28°F | 9°F | 25% | 5% | 8 h 30 min |
| December 9 | 28°F | 8°F | 25% | 5% | 8 h 30 min |
| December 10 | 28°F | 8°F | 25% | 5% | 8 h 30 min |
| December 11 | 27°F | 8°F | 25% | 5% | 8 h 30 min |
| December 12 | 27°F | 7°F | 25% | 5% | 8 h 30 min |
| December 13 | 27°F | 7°F | 26% | 6% | 8 h 20 min |
| December 14 | 26°F | 7°F | 26% | 6% | 8 h 20 min |
| December 15 | 26°F | 6°F | 26% | 6% | 8 h 20 min |
| December 16 | 26°F | 6°F | 26% | 6% | 8 h 20 min |
| December 17 | 25°F | 6°F | 26% | 6% | 8 h 20 min |
| December 18 | 25°F | 5°F | 27% | 6% | 8 h 20 min |
| December 19 | 25°F | 5°F | 27% | 6% | 8 h 20 min |
| December 20 | 25°F | 5°F | 27% | 6% | 8 h 20 min |
| December 21 | 24°F | 4°F | 27% | 6% | 8 h 20 min |
| December 22 | 24°F | 4°F | 27% | 6% | 8 h 20 min |
| December 23 | 24°F | 4°F | 27% | 6% | 8 h 20 min |
| December 24 | 24°F | 4°F | 27% | 6% | 8 h 20 min |
| December 25 | 24°F | 3°F | 27% | 6% | 8 h 20 min |
| December 26 | 23°F | 3°F | 27% | 6% | 8 h 20 min |
| December 27 | 23°F | 3°F | 27% | 6% | 8 h 20 min |
| December 28 | 23°F | 3°F | 28% | 6% | 8 h 20 min |
| December 29 | 23°F | 2°F | 28% | 6% | 8 h 20 min |
| December 30 | 23°F | 2°F | 28% | 6% | 8 h 20 min |
| December 31 | 23°F | 2°F | 28% | 6% | 8 h 20 min |
- Normal high
- 26°FDecember average
- Normal low
- 6°FDecember average
- Precipitation
- 0.63 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 10.4 inmonth total
- Nights at 32°F or colder
- 31
- Daylight
- 8 h 40 min to 8 h 20 minDecember 1 to December 31
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094014; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Williston in December?
On a given December day the chance of 0.01 inch or more is 26% on average, highest around December 28 (28%). In all, 0.63 in falls on 9 days of a normal December.
In a normal December in Williston, 31 nights fall to freezing, 20 days stay below freezing all day and snowfall averages 10.4 inches.
Snow falls on 9 days in a normal December, and an inch or more covers the ground on 20 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094014.
How humid and windy is Williston in December?
At 3 p.m. the normal temperature is 18°F with 70% relative humidity and a dew point of 10°F; at 6 a.m. it is 9°F with 81% humidity. The wind averages 8.2 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. | 9°F | 4°F | 81% | 7.4 mph | 46% |
| 9 a.m. | 9°F | 5°F | 81% | 7.3 mph | – |
| noon | 14°F | 8°F | 75% | 9.3 mph | 48% |
| 3 p.m. | 18°F | 10°F | 70% | 10.2 mph | 56% |
| 6 p.m. | 14°F | 8°F | 77% | 8.3 mph | 53% |
| 9 p.m. | 12°F | 7°F | 80% | 7.7 mph | 58% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094014. 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 Williston?
The warmest December temperature on Williston's official record (since 1894) is 63°F, on December 6, 1939; the coldest is −50°F, on December 23, 1983. The wettest December brought 2.50 in (2008); the snowiest, 35.3 inches (2010).
Source: records: ACIS, NWS threaded record ISNthr. Records and recent months use complete months only.
How does December in Williston compare across North Dakota?
Across the 92 places PlainClimate covers in North Dakota, December normal highs run from 18°F in Rolette to 32°F in Amidon; Williston's is 26°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Williston in November38°F by day, 17°F at night
- Williston in January22°F by day, 1°F at night
- Williston through the yearEvery month, frost dates, records and recent years
- North Dakota in DecemberThe statewide normal and the warmest and coolest places
- Amidon: North Dakota's warmest Decembernormal high 32°F