Climateby Month

Nashua, NH weather in January

NOAA 1991-2020 normals and daily records · Nashua all year

Expect cold, snowy weather in Nashua in January, with highs near 34°F and lows near 13°F. Rain or snow falls on about 12 days. Snowfall averages about 17.1 in. It is one of the coldest months in Nashua. Dress for deep cold.

Normal high
34°F
Normal low
13°F
Wet days
12
3.3 in total
Snowfall
17.1 in
snow on the ground 24 days

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high35°F34°F
Normal low16°F11°F
Chance of a wet day39%36%
Sunrise / sunset7:16 am / 4:22 pm7:01 am / 4:57 pm
Daylight9.1 h9.9 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical January day

  1. 6 am22°Fdew point 14°F
  2. 9 am23°Fdew point 15°F
  3. Noon30°Fdew point 16°F
  4. 3 pm32°Fdew point 16°F
  5. 6 pm29°Fdew point 16°F
  6. 9 pm26°Fdew point 16°F

NOAA hourly normals (local standard time) from Manchester Airport (12 mi away); average wind 7 mph; clear or few clouds in 50% of daytime hours, mostly cloudy or overcast in 45%.

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 snow12 of 31
  • Notable rainat least 0.10 in7 of 31
  • Freezing nightslow 32°F or below30 of 31
  • Snow on the groundsnow depth 1 in or more24 of 31

Average days per January, counted from daily records for each year 1991-2020.

Rain and snow in January

Normal precipitation is 3.3 in; a dry January brings about 2.3 in and a wet one about 4.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 17.1 in, with about 4 days of an inch or more.

How January varies from year to year

  • Warmest January, 1991-20202006: average high 40°F
  • Coolest January2004: average high 25°F
  • Wettest January1996: 6.5 in
  • Driest January2004: 1.0 in
  • Highest reading70°F (January 7, 2007)
  • Lowest reading-23°F (January 27, 1994)

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

DecemberJanuaryFebruary
Normal high39°F34°F37°F
Normal low20°F13°F14°F
Wet days121211
Comfortable days000
Daylight9.1 h9.4 h10.6 h

Highs change by -5°F from December and +3°F into February.

Nearby alternatives in January

How Nashua ranks in January

  • Normal high307th warmest of 378 cities; 1st of 4 in New Hampshire
  • Wet days305th driest of 378
  • Comfortable days258th most of 339

What to pack for Nashua in January

  • A warm jacket – lows near 13°F, highs near 34°F
  • A rain jacket or umbrella – rain or snow on about 12 days
  • Waterproof boots – snow on the ground on about 24 days
  • A hat and gloves – about 30 freezing nights

Heating and cooling

January has 1296 heating degree days and 0 cooling degree days (base 65°F), 17% of the year's total heating and cooling demand.

Questions

How cold is Nashua in January?

The normal high is 34°F and the normal low is 13°F. From 1991 to 2020 the coldest January reading was -23°F (January 27, 1994).

Does it rain a lot in Nashua in January?

About 12 days in January have at least 0.01 in of precipitation, and the normal total is 3.3 in. The wettest January in 1991-2020 was in 1996 (6.5 in); the driest was in 2004 (1.0 in).

Does it snow in Nashua in January?

Yes. Normal snowfall in January is 17.1 in, and snow covers the ground on about 24 days.

Is January a good time to visit Nashua?

January ranks 12th of 12 months on our comfort score for Nashua (25 out of 100). It has almost no comfortable days. The best months are May and September.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Hudson 1 Sse (USC00274234), 3.0 mi ENE of the city center, 185 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Nashua 2 Nnw (USC00275712), 1.8 mi N of the city center, 135 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Manchester Airport (USW00014710), 12 mi N of the city center, 225 ft (66 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Concord Muni Airport (USW00014745), 30 mi N of the city center, 346 ft (187 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Manchester Airport (743945-14710), 12 mi N of the city center, 229 ft (70 ft higher than the city). Hourly observations, 1991-2020.