Mount Washington weather in January: Mount Washington, New Hampshire: normal highs, lows, rain and records for January
Mount Washington in January has a normal high of 15°F and a normal low of −3°F, a daily mean of 6°F, falling from 17°F on the 1st to 14°F by the 31st. Measurable precipitation falls on 20 days in a normal January, 5.74 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −9°C and low of −20°C, 146 mm of precipitation and 105 cm of snow in January.
- NOAA stationMount Washington
- Station IDUSW00014755
- Location44.27°N 71.30°W
- Elevation6,267 ft (1,910 m)
- Jan 15° -3°
- Feb 15° -3°
- Mar 21° 5°
- Apr 31° 17°
- May 43° 30°
- Jun 51° 40°
- Jul 55° 45°
- Aug 54° 43°
- Sep 49° 37°
- Oct 38° 25°
- Nov 28° 13°
- Dec 20° 4°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mount Washington in January?
The normal high is 15°F and the normal low −3°F, for a daily mean of 5.8°F. January is 6.0°F cooler than December and 0.1°F cooler than February. January is the 12th warmest month of the year in Mount Washington and the 11th wettest. Across the month the normal high falls 3°F, from 17°F on January 1 to 14°F on January 31. From one year to the next January's mean temperature typically moves about 5.1°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 1°F and 11°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 67%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 17°F | −1°F | 67% | 45% |
| January 8 | 16°F | −2°F | 66% | 44% |
| January 15 | 15°F | −3°F | 65% | 42% |
| January 22 | 14°F | −4°F | 64% | 40% |
| January 31 | 14°F | −5°F | 63% | 39% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 1, coldest night January 27)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 17°F | −1°F | 67% | 45% | 8 h 50 min |
| January 2 | 17°F | −1°F | 67% | 45% | 9 h |
| January 3 | 17°F | −1°F | 67% | 44% | 9 h |
| January 4 | 16°F | −1°F | 67% | 44% | 9 h |
| January 5 | 16°F | −1°F | 67% | 44% | 9 h |
| January 6 | 16°F | −2°F | 67% | 44% | 9 h |
| January 7 | 16°F | −2°F | 67% | 44% | 9 h |
| January 8 | 16°F | −2°F | 66% | 44% | 9 h |
| January 9 | 16°F | −2°F | 66% | 43% | 9 h |
| January 10 | 16°F | −2°F | 66% | 43% | 9 h |
| January 11 | 15°F | −3°F | 66% | 43% | 9 h 10 min |
| January 12 | 15°F | −3°F | 66% | 43% | 9 h 10 min |
| January 13 | 15°F | −3°F | 66% | 42% | 9 h 10 min |
| January 14 | 15°F | −3°F | 65% | 42% | 9 h 10 min |
| January 15 | 15°F | −3°F | 65% | 42% | 9 h 10 min |
| January 16 | 15°F | −3°F | 65% | 42% | 9 h 10 min |
| January 17 | 15°F | −4°F | 65% | 41% | 9 h 20 min |
| January 18 | 15°F | −4°F | 65% | 41% | 9 h 20 min |
| January 19 | 14°F | −4°F | 65% | 41% | 9 h 20 min |
| January 20 | 14°F | −4°F | 64% | 40% | 9 h 20 min |
| January 21 | 14°F | −4°F | 64% | 40% | 9 h 20 min |
| January 22 | 14°F | −4°F | 64% | 40% | 9 h 30 min |
| January 23 | 14°F | −4°F | 64% | 40% | 9 h 30 min |
| January 24 | 14°F | −4°F | 64% | 40% | 9 h 30 min |
| January 25 | 14°F | −4°F | 64% | 40% | 9 h 30 min |
| January 26 | 14°F | −5°F | 64% | 40% | 9 h 30 min |
| January 27 | 14°F | −5°F | 64% | 39% | 9 h 40 min |
| January 28 | 14°F | −5°F | 63% | 39% | 9 h 40 min |
| January 29 | 14°F | −5°F | 63% | 39% | 9 h 40 min |
| January 30 | 14°F | −5°F | 63% | 39% | 9 h 40 min |
| January 31 | 14°F | −5°F | 63% | 39% | 9 h 50 min |
- Normal high
- 15°FJanuary average
- Normal low
- −3°FJanuary average
- Precipitation
- 5.74 inmonth total
- Days with precipitation
- 200.01 inch or more
- Snowfall
- 41.4 inmonth total
- Nights at 32°F or colder
- 31
- Daylight
- 8 h 50 min to 9 h 50 minJanuary 1 to January 31
- Sunshine
- 59%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014755; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Mount Washington in January?
On a given January day the chance of 0.01 inch or more is 65% on average, highest around January 1 (67%). In all, 5.74 in falls on 20 days of a normal January, 1 of them with an inch or more.
In a normal January in Mount Washington, 31 nights fall to freezing, 28 days stay below freezing all day and snowfall averages 41.4 inches.
Snow falls on 20 days in a normal January, and an inch or more covers the ground on 30 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014755.
What are the records for January in Mount Washington?
The warmest January temperature on this station's record (since 1948) is 48°F, on January 13, 2013; the coldest is −46°F, on January 8, 1968. The wettest January brought 18.23 in (1958); the snowiest, 94.6 inches (1978).
The January mean against the 1991-2020 normal of 5.8°F: 2021 9.8°F (+4.0), 2022 2.2°F (−3.6), 2023 16.1°F (+10.3), 2024 11.6°F (+5.8). 3 of 4 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 9.8°F | +4.0°F | 3.49 in |
| 2022 | 2.2°F | −3.6°F | 4.52 in |
| 2023 | 16.1°F | +10.3°F | 6.81 in |
| 2024 | 11.6°F | +5.8°F | 10.25 in |
Source: records: ACIS, station USW00014755; recent months: ACIS, station USW00014755. Records and recent months use complete months only.
How does January in Mount Washington compare across New Hampshire?
Across the 28 places PlainClimate covers in New Hampshire, January normal highs run from 24°F in Colebrook to 35°F in Nashua; Mount Washington's is 15°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Mount Washington in December20°F by day, 4°F at night
- Mount Washington in February15°F by day, −3°F at night
- Mount Washington through the yearEvery month, frost dates, records and recent years
- New Hampshire in JanuaryThe statewide normal and the warmest and coolest places
- Nashua: New Hampshire's warmest Januarynormal high 35°F