Pocatello weather in December: Pocatello, Idaho: normal highs, lows, rain and records for December
Pocatello in December has a normal high of 34°F and a normal low of 17°F, a daily mean of 26°F, falling from 38°F on the 1st to 33°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 1.13 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 1°C and low of −8°C, 29 mm of precipitation and 26 cm of snow in December.
- NOAA stationPocatello Regional Airport
- Station IDUSW00024156
- Location42.92°N 112.57°W
- Elevation4,478 ft (1,365 m)
- Population58,231
- Jan 34° 17°
- Feb 39° 20°
- Mar 51° 28°
- Apr 59° 33°
- May 69° 40°
- Jun 79° 46°
- Jul 89° 52°
- Aug 88° 51°
- Sep 77° 42°
- Oct 62° 33°
- Nov 46° 24°
- Dec 34° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pocatello in December?
The normal high is 34°F and the normal low 17°F, for a daily mean of 25.8°F. December is 9.1°F cooler than November and 0.2°F warmer than January. December is the 11th warmest month of the year in Pocatello and the 4th wettest, and the snowiest. Across the month the normal high falls 5°F, from 38°F on December 1 to 33°F on December 31. From one year to the next December's mean temperature typically moves about 3.5°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 22°F and 29°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 38°F | 20°F | 33% | 12% |
| December 8 | 36°F | 18°F | 34% | 12% |
| December 15 | 34°F | 17°F | 34% | 11% |
| December 22 | 33°F | 17°F | 35% | 11% |
| December 31 | 33°F | 16°F | 35% | 11% |
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 | 38°F | 20°F | 33% | 12% | 9 h 20 min |
| December 2 | 38°F | 19°F | 33% | 12% | 9 h 20 min |
| December 3 | 37°F | 19°F | 33% | 12% | 9 h 10 min |
| December 4 | 37°F | 19°F | 34% | 12% | 9 h 10 min |
| December 5 | 37°F | 19°F | 34% | 12% | 9 h 10 min |
| December 6 | 36°F | 19°F | 34% | 12% | 9 h 10 min |
| December 7 | 36°F | 18°F | 34% | 12% | 9 h 10 min |
| December 8 | 36°F | 18°F | 34% | 12% | 9 h 10 min |
| December 9 | 35°F | 18°F | 34% | 12% | 9 h 10 min |
| December 10 | 35°F | 18°F | 34% | 12% | 9 h 10 min |
| December 11 | 35°F | 18°F | 34% | 11% | 9 h 10 min |
| December 12 | 34°F | 17°F | 34% | 11% | 9 h |
| December 13 | 34°F | 17°F | 34% | 11% | 9 h |
| December 14 | 34°F | 17°F | 34% | 11% | 9 h |
| December 15 | 34°F | 17°F | 34% | 11% | 9 h |
| December 16 | 34°F | 17°F | 34% | 11% | 9 h |
| December 17 | 33°F | 17°F | 34% | 11% | 9 h |
| December 18 | 33°F | 17°F | 34% | 11% | 9 h |
| December 19 | 33°F | 17°F | 34% | 11% | 9 h |
| December 20 | 33°F | 17°F | 34% | 11% | 9 h |
| December 21 | 33°F | 17°F | 34% | 11% | 9 h |
| December 22 | 33°F | 17°F | 35% | 11% | 9 h |
| December 23 | 33°F | 16°F | 35% | 11% | 9 h |
| December 24 | 33°F | 16°F | 35% | 11% | 9 h |
| December 25 | 33°F | 16°F | 35% | 11% | 9 h |
| December 26 | 33°F | 16°F | 35% | 11% | 9 h |
| December 27 | 33°F | 16°F | 35% | 11% | 9 h |
| December 28 | 33°F | 16°F | 35% | 11% | 9 h |
| December 29 | 33°F | 16°F | 35% | 11% | 9 h |
| December 30 | 33°F | 16°F | 35% | 11% | 9 h |
| December 31 | 33°F | 16°F | 35% | 11% | 9 h |
- Normal high
- 34°FDecember average
- Normal low
- 17°FDecember average
- Precipitation
- 1.13 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 10.1 inmonth total
- Nights at 32°F or colder
- 29
- Daylight
- 9 h 20 min to 9 hDecember 1 to December 31
- Sunshine
- 60%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024156; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Pocatello in December?
On a given December day the chance of 0.01 inch or more is 34% on average, highest around December 22 (35%). In all, 1.13 in falls on 11 days of a normal December.
In a normal December in Pocatello, 29 nights fall to freezing, 13 days stay below freezing all day and snowfall averages 10.1 inches.
Snow falls on 9 days in a normal December, and an inch or more covers the ground on 15 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024156.
How humid and windy is Pocatello in December?
At 3 p.m. the normal temperature is 30°F with 68% relative humidity and a dew point of 21°F; at 6 a.m. it is 21°F with 81% humidity. The wind averages 9.4 mph, most often from the southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 21°F | 16°F | 81% | 8.5 mph | 34% |
| 9 a.m. | 21°F | 16°F | 80% | 8.4 mph | – |
| noon | 28°F | 20°F | 72% | 10.9 mph | 36% |
| 3 p.m. | 30°F | 21°F | 68% | 10.9 mph | 39% |
| 6 p.m. | 26°F | 20°F | 77% | 9.4 mph | 41% |
| 9 p.m. | 24°F | 18°F | 79% | 9.1 mph | 45% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024156. 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 Pocatello?
The warmest December temperature on Pocatello's official record (since 1939) is 64°F, on December 1, 1995; the coldest is −29°F, on December 23, 1990. The wettest December brought 3.39 in (1983); the snowiest, 33.7 inches (1983).
The December mean against the 1991-2020 normal of 25.8°F: 2021 31.2°F (+5.4), 2022 23.8°F (−2.0), 2023 29.0°F (+3.2), 2024 32.2°F (+6.4), 2025 38.1°F (+12.3). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 31.2°F | +5.4°F | 1.29 in |
| 2022 | 23.8°F | −2.0°F | 1.60 in |
| 2023 | 29.0°F | +3.2°F | 1.03 in |
| 2024 | 32.2°F | +6.4°F | 1.79 in |
| 2025 | 38.1°F | +12.3°F | 2.15 in |
Source: records: ACIS, NWS threaded record PIHthr; recent months: ACIS, station USW00024156. Records and recent months use complete months only.
How does December in Pocatello compare across Idaho?
Across the 85 places PlainClimate covers in Idaho, December normal highs run from 26°F in Island Park to 44°F in Glenns Ferry; Pocatello's is 34°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.