Jackson, WY weather in January
Jackson is very cold and snowy in January: highs average 26°F and nights drop to about 6°F. Expect about 13 wet days. Snowfall averages about 19.1 in. This is the depth of winter in Jackson. Pack for serious cold.
- Normal high
- 26°F
- Normal low
- 6°F
- Wet days
- 13
- 1.4 in total
- Snowfall
- 19.1 in
- snow on the ground 31 days
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 25°F | 28°F |
| Normal low | 5°F | 8°F |
| Chance of a wet day | 43% | 37% |
| Sunrise / sunset | 7:56 am / 4:57 pm | 7:40 am / 5:32 pm |
| Daylight | 9.0 h | 9.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below30 of 31
- Snow on the groundsnow depth 1 in or more31 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain and snow in January
Normal precipitation is 1.4 in; a dry January brings about 1.0 in and a wet one about 1.7 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 19.1 in, with about 6 days of an inch or more.
How January varies from year to year
- Warmest January, 1991-20202012: average high 36°F
- Coolest January2017: average high 17°F
- Highest reading50°F (January 19, 2005)
- Lowest reading-32°F (January 6, 2017)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 26°F | 26°F | 30°F |
| Normal low | 7°F | 6°F | 9°F |
| Wet days | 14 | 13 | 10 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 9.0 h | 9.4 h | 10.5 h |
Highs change by 0°F from December and +4°F into February.
Nearby alternatives in January
- Warmer: Sun Valley, ID180 mi · high 31°F · 10 wet days
- Drier: Billings, MT194 mi · high 37°F · 7 wet days
How Jackson ranks in January
- Normal high364th warmest of 378 cities; 4th of 4 in Wyoming
- Wet days321st driest of 378
- Comfortable days339th most of 339
What to pack for Jackson in January
- A warm jacket – lows near 6°F, highs near 26°F
- A rain jacket or umbrella – rain or snow on about 13 days
- Waterproof boots – snow on the ground on about 31 days
- A hat and gloves – about 30 freezing nights
Heating and cooling
January has 1513 heating degree days and 0 cooling degree days (base 65°F), 15% of the year's total heating and cooling demand.
Questions
How cold is Jackson in January?
The normal high is 26°F and the normal low is 6°F. From 1991 to 2020 the coldest January reading was -32°F (January 6, 2017).
Does it rain a lot in Jackson in January?
About 13 days in January have at least 0.01 in of precipitation, and the normal total is 1.5 in.
Does it snow in Jackson in January?
Yes. Normal snowfall in January is 19.1 in, and snow covers the ground on about 31 days.
Is January a good time to visit Jackson?
January ranks 11th of 12 months on our comfort score for Jackson (24 out of 100). It has almost no comfortable days. The best months are June and September.
Where the numbers come from
- Temperature, rain and snowfall: Jackson (USC00484910), 0.5 mi N of the city center, 6,210 ft . NOAA normals and daily records, 1991-2020.
- Snow depth: Moose (USC00486428), 12 mi N of the city center, 6,444 ft (206 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Moose 1 Nne (USW00004131), 13 mi NNE of the city center, 6,466 ft (228 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Rexburg-Madison County Apt (726818-94194), 58 mi WNW of the city center, 4,858 ft (1,380 ft lower than the city). Hourly observations, 1991-2020.
- Not available for this location: humidity and wind by hour and cloud cover (no station close enough or similar enough in elevation).