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Climate · Morristown

Morristown in December

Mild and mostly dry, as the days hold steady.

Typical weather, averaged over 30 years

December in Morristown is mild: highs near 67°F, lows near 42°F. Rain falls on about one day a week, and daylight holds at about 9 hours 56 minutes.December in Morristown is mild: highs near 19°C, lows near 6°C. Rain falls on about one day a week, and daylight holds at about 9 hours 56 minutes.

High
67°F19°Caverage
Low
42°F6°Caverage
Wet days
1a week · 12% of days
Daylight
9h 56mon average

Is December a good time to visit Morristown?

A good month, just outside Morristown's best months, which run in two parts: March, or November.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 67°F in December, against 67°F to 105°F through the year.Highs near 19°C in December, against 19°C to 41°C through the year.

Chance of a wet day

12% of days in December, against 2% to 23% through the year.

Cloud cover

37% cover in December, against 17% to 40% through the year.

Daylight

9h 56m in December, against 9h 56m to 14h 23m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November78°26°low 51°low 11°1 wet day a weekRain on about one day a week.
  2. December67°19°low 42°low 6°1 wet day a weekRain on about one day a week.
  3. January67°19°low 41°low 5°1 wet day a weekRain on about one day a week.

Where Morristown sits, in December

America/Phoenix
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
7:27 AMsets 5:22 PM
Above the sea
600 mlow-lying
Latitude
34.0°Nnorthern hemisphere
Nearest of ours
Scottsdale55 km south-east

The land around Morristown, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in December

high · low · wet days
See December on the planning mapThe whole year in Morristown

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Morristown. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (600 m) against the climate model's (894 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (600 m) against the climate model's (894 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.