Morristown weather in December: Morristown, Tennessee: normal highs, lows, rain and records for December
Morristown in December has a normal high of 49°F and a normal low of 31°F, a daily mean of 40°F, falling from 53°F on the 1st to 46°F by the 31st. Measurable precipitation falls on 12 days in a normal December, 4.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 9°C and low of −1°C, 116 mm of precipitation and 4 cm of snow in December.
- NOAA stationMorristown Radio WCRK
- Station IDUSC00406271
- Location36.21°N 83.33°W
- Elevation1,344 ft (410 m)
- Population32,994
- Jan 46° 27°
- Feb 51° 30°
- Mar 60° 36°
- Apr 69° 45°
- May 77° 55°
- Jun 83° 63°
- Jul 86° 67°
- Aug 86° 65°
- Sep 81° 59°
- Oct 70° 47°
- Nov 59° 36°
- Dec 49° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Morristown in December?
The normal high is 49°F and the normal low 31°F, for a daily mean of 39.9°F. December is 7.2°F cooler than November and 3.3°F warmer than January. December is the 11th warmest month of the year in Morristown and the 3rd wettest. Across the month the normal high falls 7°F, from 53°F on December 1 to 46°F on December 31. From one year to the next December's mean temperature typically moves about 4.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 36°F and 44°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 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 53°F | 33°F | 36% | 24% |
| December 8 | 51°F | 32°F | 38% | 25% |
| December 15 | 49°F | 31°F | 39% | 26% |
| December 22 | 48°F | 30°F | 39% | 26% |
| December 31 | 46°F | 29°F | 38% | 26% |
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 | 53°F | 33°F | 36% | 24% | 9 h 50 min |
| December 2 | 53°F | 33°F | 37% | 24% | 9 h 50 min |
| December 3 | 52°F | 33°F | 37% | 24% | 9 h 50 min |
| December 4 | 52°F | 32°F | 37% | 25% | 9 h 50 min |
| December 5 | 52°F | 32°F | 37% | 25% | 9 h 50 min |
| December 6 | 51°F | 32°F | 38% | 25% | 9 h 50 min |
| December 7 | 51°F | 32°F | 38% | 25% | 9 h 50 min |
| December 8 | 51°F | 32°F | 38% | 25% | 9 h 50 min |
| December 9 | 50°F | 32°F | 38% | 25% | 9 h 50 min |
| December 10 | 50°F | 32°F | 38% | 26% | 9 h 50 min |
| December 11 | 50°F | 32°F | 38% | 26% | 9 h 50 min |
| December 12 | 50°F | 32°F | 39% | 26% | 9 h 40 min |
| December 13 | 49°F | 31°F | 39% | 26% | 9 h 40 min |
| December 14 | 49°F | 31°F | 39% | 26% | 9 h 40 min |
| December 15 | 49°F | 31°F | 39% | 26% | 9 h 40 min |
| December 16 | 49°F | 31°F | 39% | 26% | 9 h 40 min |
| December 17 | 48°F | 31°F | 39% | 26% | 9 h 40 min |
| December 18 | 48°F | 31°F | 39% | 26% | 9 h 40 min |
| December 19 | 48°F | 31°F | 39% | 26% | 9 h 40 min |
| December 20 | 48°F | 31°F | 39% | 26% | 9 h 40 min |
| December 21 | 48°F | 30°F | 39% | 26% | 9 h 40 min |
| December 22 | 48°F | 30°F | 39% | 26% | 9 h 40 min |
| December 23 | 47°F | 30°F | 39% | 26% | 9 h 40 min |
| December 24 | 47°F | 30°F | 39% | 26% | 9 h 40 min |
| December 25 | 47°F | 30°F | 39% | 26% | 9 h 40 min |
| December 26 | 47°F | 30°F | 39% | 26% | 9 h 40 min |
| December 27 | 47°F | 29°F | 39% | 26% | 9 h 40 min |
| December 28 | 47°F | 29°F | 39% | 26% | 9 h 40 min |
| December 29 | 47°F | 29°F | 39% | 26% | 9 h 40 min |
| December 30 | 46°F | 29°F | 39% | 26% | 9 h 40 min |
| December 31 | 46°F | 29°F | 38% | 26% | 9 h 40 min |
- Normal high
- 49°FDecember average
- Normal low
- 31°FDecember average
- Precipitation
- 4.57 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 1.6 inmonth total
- Nights at 32°F or colder
- 18
- Daylight
- 9 h 50 min to 9 h 40 minDecember 1 to December 31
- Days at 70°F or more
- 1
- Sunshine
- 64%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00406271; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Morristown in December?
On a given December day the chance of 0.01 inch or more is 38% on average, highest around December 21 (39%). In all, 4.57 in falls on 12 days of a normal December, 1 of them with an inch or more.
In a normal December in Morristown, 18 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 1.6 inches.
Snow falls on 1 day in a normal December.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00406271.
How does December in Morristown compare across Tennessee?
Across the 116 places PlainClimate covers in Tennessee, December normal highs run from 47°F in Monterey to 55°F in Ardmore; Morristown's is 49°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Morristown in November59°F by day, 36°F at night
- Morristown in January46°F by day, 27°F at night
- Morristown through the yearEvery month, frost dates, records and recent years
- Tennessee in DecemberThe statewide normal and the warmest and coolest places
- Ardmore: Tennessee's warmest Decembernormal high 55°F