Manchester weather in December: Manchester, New Hampshire: normal highs, lows, rain and records for December
Manchester in December has a normal high of 39°F and a normal low of 24°F, a daily mean of 31°F, falling from 44°F on the 1st to 36°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 3.29 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −5°C, 84 mm of precipitation in December.
- NOAA stationManchester Airport
- Station IDUSW00014710
- Location42.93°N 71.44°W
- Elevation225 ft (69 m)
- From the center4 miles
- Population116,386
- Jan 34° 17°
- Feb 37° 19°
- Mar 46° 27°
- Apr 59° 38°
- May 70° 48°
- Jun 79° 58°
- Jul 84° 64°
- Aug 82° 62°
- Sep 75° 54°
- Oct 62° 42°
- Nov 50° 33°
- Dec 39° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Manchester in December?
The normal high is 39°F and the normal low 24°F, for a daily mean of 31.4°F. December is 10.1°F cooler than November and 5.8°F warmer than January. December is the 10th warmest month of the year in Manchester and the 10th wettest. Across the month the normal high falls 8°F, from 44°F on December 1 to 36°F on December 31. From one year to the next December's mean temperature typically moves about 3.6°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 28°F and 35°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 | 44°F | 28°F | 35% | 20% |
| December 8 | 42°F | 26°F | 35% | 20% |
| December 15 | 39°F | 24°F | 35% | 20% |
| December 22 | 38°F | 22°F | 35% | 20% |
| December 31 | 36°F | 19°F | 35% | 20% |
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 | 28°F | 35% | 20% | 9 h 20 min |
| December 2 | 44°F | 28°F | 35% | 20% | 9 h 20 min |
| December 3 | 43°F | 28°F | 35% | 20% | 9 h 10 min |
| December 4 | 43°F | 27°F | 35% | 20% | 9 h 10 min |
| December 5 | 43°F | 27°F | 35% | 20% | 9 h 10 min |
| December 6 | 42°F | 27°F | 35% | 20% | 9 h 10 min |
| December 7 | 42°F | 26°F | 35% | 20% | 9 h 10 min |
| December 8 | 42°F | 26°F | 35% | 20% | 9 h 10 min |
| December 9 | 41°F | 26°F | 35% | 20% | 9 h 10 min |
| December 10 | 41°F | 25°F | 35% | 20% | 9 h 10 min |
| December 11 | 41°F | 25°F | 35% | 20% | 9 h 10 min |
| December 12 | 40°F | 25°F | 35% | 20% | 9 h |
| December 13 | 40°F | 24°F | 35% | 20% | 9 h |
| December 14 | 40°F | 24°F | 35% | 20% | 9 h |
| December 15 | 39°F | 24°F | 35% | 20% | 9 h |
| December 16 | 39°F | 23°F | 35% | 20% | 9 h |
| December 17 | 39°F | 23°F | 35% | 20% | 9 h |
| December 18 | 39°F | 23°F | 35% | 20% | 9 h |
| December 19 | 38°F | 23°F | 35% | 20% | 9 h |
| December 20 | 38°F | 22°F | 35% | 20% | 9 h |
| December 21 | 38°F | 22°F | 35% | 20% | 9 h |
| December 22 | 38°F | 22°F | 35% | 20% | 9 h |
| December 23 | 37°F | 21°F | 35% | 20% | 9 h |
| December 24 | 37°F | 21°F | 35% | 20% | 9 h |
| December 25 | 37°F | 21°F | 35% | 20% | 9 h |
| December 26 | 37°F | 21°F | 35% | 20% | 9 h |
| December 27 | 36°F | 20°F | 35% | 20% | 9 h |
| December 28 | 36°F | 20°F | 35% | 20% | 9 h |
| December 29 | 36°F | 20°F | 35% | 20% | 9 h |
| December 30 | 36°F | 20°F | 35% | 20% | 9 h |
| December 31 | 36°F | 19°F | 35% | 20% | 9 h |
- Normal high
- 39°FDecember average
- Normal low
- 24°FDecember average
- Precipitation
- 3.29 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 26
- 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 USW00014710; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Manchester in December?
On a given December day the chance of 0.01 inch or more is 35% on average, highest around December 22 (35%). In all, 3.29 in falls on 11 days of a normal December.
In a normal December in Manchester, 26 nights fall to freezing and 8 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014710.
How humid and windy is Manchester in December?
At 3 p.m. the normal temperature is 34°F with 52% relative humidity and a dew point of 18°F; at 6 a.m. it is 25°F with 73% humidity. The wind averages 6.7 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 25°F | 18°F | 73% | 5.5 mph | – |
| 9 a.m. | 27°F | 18°F | 69% | 6.5 mph | – |
| noon | 32°F | 18°F | 57% | 8.5 mph | – |
| 3 p.m. | 34°F | 18°F | 52% | 8.8 mph | – |
| 6 p.m. | 30°F | 18°F | 60% | 6.6 mph | – |
| 9 p.m. | 28°F | 18°F | 66% | 6.3 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014710. 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 Manchester?
The warmest December temperature on Manchester's official record (since 1885) is 74°F, on December 7, 1998; the coldest is −20°F, on December 28, 1933. The wettest December brought 7.80 in (2023); the snowiest, 31.2 inches (1970).
The December mean against the 1991-2020 normal of 31.4°F: 2021 35.8°F (+4.4), 2022 34.1°F (+2.7), 2023 38.5°F (+7.1), 2024 31.5°F (+0.1), 2025 25.3°F (−6.1). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.8°F | +4.4°F | 3.18 in |
| 2022 | 34.1°F | +2.7°F | 5.44 in |
| 2023 | 38.5°F | +7.1°F | 7.80 in |
| 2024 | 31.5°F | +0.1°F | 3.31 in |
| 2025 | 25.3°F | −6.1°F | 3.07 in |
Source: records: ACIS, NWS threaded record MHTthr; recent months: ACIS, station USW00014710. Records and recent months use complete months only.
How does December in Manchester 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; Manchester's is 39°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Manchester in November50°F by day, 33°F at night
- Manchester in January34°F by day, 17°F at night
- Manchester through the yearEvery month, frost dates, records and recent years
- New Hampshire in DecemberThe statewide normal and the warmest and coolest places
- Nashua: New Hampshire's warmest Decembernormal high 40°F