Zion National Park weather in December: Zion National Park, Utah: normal highs, lows, rain and records for December
Zion National Park in December has a normal high of 53°F and a normal low of 29°F, a daily mean of 41°F, falling from 56°F on the 1st to 52°F by the 31st. Measurable precipitation falls on 7 days in a normal December, 1.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 11°C and low of −1°C, 42 mm of precipitation and 4 cm of snow in December.
- NOAA stationZion National Park
- Station IDUSC00429717
- Location37.21°N 112.98°W
- Elevation4,038 ft (1,231 m)
- Jan 54° 30°
- Feb 58° 34°
- Mar 66° 39°
- Apr 73° 44°
- May 84° 53°
- Jun 95° 62°
- Jul 100° 70°
- Aug 98° 69°
- Sep 91° 61°
- Oct 78° 49°
- Nov 64° 37°
- Dec 53° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Zion National Park in December?
The normal high is 53°F and the normal low 29°F, for a daily mean of 40.9°F. December is 9.7°F cooler than November and 1.2°F cooler than January. December is the 12th warmest month of the year in Zion National Park and the 4th wettest, and the snowiest. Across the month the normal high falls 4°F, from 56°F on December 1 to 52°F on December 31. From one year to the next December's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 38°F and 43°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 23%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 56°F | 32°F | 18% | 11% |
| December 8 | 54°F | 30°F | 19% | 12% |
| December 15 | 52°F | 29°F | 21% | 13% |
| December 22 | 51°F | 28°F | 22% | 13% |
| December 31 | 52°F | 29°F | 23% | 14% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 21)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 56°F | 32°F | 18% | 11% | 9 h 50 min |
| December 2 | 56°F | 32°F | 18% | 11% | 9 h 50 min |
| December 3 | 55°F | 31°F | 18% | 11% | 9 h 50 min |
| December 4 | 55°F | 31°F | 18% | 11% | 9 h 50 min |
| December 5 | 55°F | 31°F | 18% | 11% | 9 h 40 min |
| December 6 | 54°F | 30°F | 19% | 11% | 9 h 40 min |
| December 7 | 54°F | 30°F | 19% | 11% | 9 h 40 min |
| December 8 | 54°F | 30°F | 19% | 12% | 9 h 40 min |
| December 9 | 53°F | 30°F | 19% | 12% | 9 h 40 min |
| December 10 | 53°F | 30°F | 19% | 12% | 9 h 40 min |
| December 11 | 53°F | 29°F | 20% | 12% | 9 h 40 min |
| December 12 | 52°F | 29°F | 20% | 12% | 9 h 40 min |
| December 13 | 52°F | 29°F | 20% | 12% | 9 h 40 min |
| December 14 | 52°F | 29°F | 20% | 13% | 9 h 40 min |
| December 15 | 52°F | 29°F | 21% | 13% | 9 h 40 min |
| December 16 | 52°F | 29°F | 21% | 13% | 9 h 40 min |
| December 17 | 52°F | 29°F | 21% | 13% | 9 h 40 min |
| December 18 | 51°F | 29°F | 21% | 13% | 9 h 40 min |
| December 19 | 51°F | 29°F | 22% | 13% | 9 h 40 min |
| December 20 | 51°F | 29°F | 22% | 13% | 9 h 40 min |
| December 21 | 51°F | 28°F | 22% | 13% | 9 h 40 min |
| December 22 | 51°F | 28°F | 22% | 13% | 9 h 40 min |
| December 23 | 51°F | 28°F | 22% | 14% | 9 h 40 min |
| December 24 | 51°F | 28°F | 22% | 14% | 9 h 40 min |
| December 25 | 51°F | 28°F | 22% | 14% | 9 h 40 min |
| December 26 | 51°F | 29°F | 22% | 14% | 9 h 40 min |
| December 27 | 51°F | 29°F | 22% | 14% | 9 h 40 min |
| December 28 | 51°F | 29°F | 22% | 14% | 9 h 40 min |
| December 29 | 52°F | 29°F | 23% | 14% | 9 h 40 min |
| December 30 | 52°F | 29°F | 23% | 14% | 9 h 40 min |
| December 31 | 52°F | 29°F | 23% | 14% | 9 h 40 min |
- Normal high
- 53°FDecember average
- Normal low
- 29°FDecember average
- Precipitation
- 1.64 inmonth total
- Days with precipitation
- 70.01 inch or more
- Snowfall
- 1.7 inmonth total
- Nights at 32°F or colder
- 20
- Daylight
- 9 h 50 min to 9 h 40 minDecember 1 to December 31
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00429717; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Zion National Park in December?
On a given December day the chance of 0.01 inch or more is 21% on average, highest around December 30 (23%). In all, 1.64 in falls on 7 days of a normal December.
In a normal December in Zion National Park, 20 nights fall to freezing and snowfall averages 1.7 inches.
Snow falls on 1 day in a normal December, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00429717.
What are the records for December in Zion National Park?
The warmest December temperature on this station's record (since 1904) is 81°F, on December 2, 1904; the coldest is −5°F, on December 23, 1990. The wettest December brought 4.46 in (2021); the snowiest, 21.0 inches (1967).
The December mean against the 1991-2020 normal of 40.9°F: 2021 40.6°F (−0.3), 2022 40.9°F (at normal), 2023 44.0°F (+3.1), 2024 48.7°F (+7.8), 2025 50.2°F (+9.3). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.6°F | −0.3°F | 4.46 in |
| 2022 | 40.9°F | at normal | 3.43 in |
| 2023 | 44.0°F | +3.1°F | 0.22 in |
| 2024 | 48.7°F | +7.8°F | 0.06 in |
| 2025 | 50.2°F | +9.3°F | 1.04 in |
Source: records: ACIS, station USC00429717; recent months: ACIS, station USC00429717. Records and recent months use complete months only.
How does December in Zion National Park compare across Utah?
Across the 97 places PlainClimate covers in Utah, December normal highs run from 28°F in Brian Head to 53°F in St. George; Zion National Park's is 53°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Zion National Park in November64°F by day, 37°F at night
- Zion National Park in January54°F by day, 30°F at night
- Zion National Park through the yearEvery month, frost dates, records and recent years
- Utah in DecemberThe statewide normal and the warmest and coolest places
- St. George: Utah's warmest Decembernormal high 53°F