Nashua weather in December: Nashua, New Hampshire: normal highs, lows, rain and records for December
Nashua in December has a normal high of 40°F and a normal low of 20°F, a daily mean of 30°F, falling from 44°F on the 1st to 36°F by the 31st. The month brings 4.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −7°C, 113 mm of precipitation in December.
- NOAA stationNashua Cwsu
- Station IDUSC00275703
- Location42.73°N 71.48°W
- Elevation180 ft (55 m)
- From the center1 miles
- Population91,851
- Jan 35° 14°
- Feb 38° 16°
- Mar 45° 24°
- Apr 58° 35°
- May 69° 46°
- Jun 79° 56°
- Jul 85° 62°
- Aug 83° 60°
- Sep 75° 52°
- Oct 62° 39°
- Nov 51° 29°
- Dec 40° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Nashua in December?
The normal high is 40°F and the normal low 20°F, for a daily mean of 29.6°F. December is 10.2°F cooler than November and 5.4°F warmer than January. December is the 10th warmest month of the year in Nashua and the 2nd wettest. Across the month the normal high falls 8°F, from 44°F on December 1 to 36°F on December 31.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 44°F | 24°F | – | – |
| December 8 | 42°F | 22°F | – | – |
| December 15 | 40°F | 20°F | – | – |
| December 22 | 38°F | 18°F | – | – |
| December 31 | 36°F | 16°F | – | – |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 44°F | 24°F | – | – | 9 h 20 min |
| December 2 | 44°F | 24°F | – | – | 9 h 20 min |
| December 3 | 44°F | 24°F | – | – | 9 h 20 min |
| December 4 | 43°F | 23°F | – | – | 9 h 10 min |
| December 5 | 43°F | 23°F | – | – | 9 h 10 min |
| December 6 | 43°F | 22°F | – | – | 9 h 10 min |
| December 7 | 42°F | 22°F | – | – | 9 h 10 min |
| December 8 | 42°F | 22°F | – | – | 9 h 10 min |
| December 9 | 42°F | 21°F | – | – | 9 h 10 min |
| December 10 | 41°F | 21°F | – | – | 9 h 10 min |
| December 11 | 41°F | 21°F | – | – | 9 h 10 min |
| December 12 | 41°F | 21°F | – | – | 9 h 10 min |
| December 13 | 40°F | 20°F | – | – | 9 h 10 min |
| December 14 | 40°F | 20°F | – | – | 9 h |
| December 15 | 40°F | 20°F | – | – | 9 h |
| December 16 | 39°F | 19°F | – | – | 9 h |
| December 17 | 39°F | 19°F | – | – | 9 h |
| December 18 | 39°F | 19°F | – | – | 9 h |
| December 19 | 39°F | 18°F | – | – | 9 h |
| December 20 | 38°F | 18°F | – | – | 9 h |
| December 21 | 38°F | 18°F | – | – | 9 h |
| December 22 | 38°F | 18°F | – | – | 9 h |
| December 23 | 38°F | 17°F | – | – | 9 h |
| December 24 | 37°F | 17°F | – | – | 9 h |
| December 25 | 37°F | 17°F | – | – | 9 h |
| December 26 | 37°F | 17°F | – | – | 9 h |
| December 27 | 37°F | 17°F | – | – | 9 h |
| December 28 | 36°F | 16°F | – | – | 9 h |
| December 29 | 36°F | 16°F | – | – | 9 h |
| December 30 | 36°F | 16°F | – | – | 9 h |
| December 31 | 36°F | 16°F | – | – | 9 h |
- Normal high
- 40°FDecember average
- Normal low
- 20°FDecember average
- Precipitation
- 4.45 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 9 h 20 min to 9 hDecember 1 to December 31
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00275703; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Nashua in December?
In a normal December in Nashua, 27 nights fall to freezing and 7 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00275703.
What are the records for December in Nashua?
The December mean against the 1991-2020 normal of 29.6°F: 2021 32.5°F (+2.9), 2022 30.8°F (+1.2), 2023 35.7°F (+6.1), 2024 28.5°F (−1.1), 2025 24.3°F (−5.3). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 32.5°F | +2.9°F | 2.84 in |
| 2022 | 30.8°F | +1.2°F | 6.27 in |
| 2023 | 35.7°F | +6.1°F | 7.98 in |
| 2024 | 28.5°F | −1.1°F | 3.53 in |
| 2025 | 24.3°F | −5.3°F | 2.79 in |
Source: recent months: ACIS, station USC00275703. Records and recent months use complete months only.
How does December in Nashua compare across New Hampshire?
Across the 28 places PlainClimate covers in New Hampshire, December normal highs run from 30°F in Colebrook to 40°F in Nashua; Nashua's is 40°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.