Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Temperature records mark December as the coldest month, with highs averaging 58.8°F (14.9°C) and lows at 43.3°F (6.3°C).Humidity
The most humid month is December, with an average relative humidity of 45%.Rainfall
In Morristown, during December, the rain falls for 6 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Morristown, during the entire year, the rain falls for 60.7 days and collects up to 9.13" (232mm) of precipitation.Snowfall
December is the only month when snow falls. The month with the most snowfall days is December, when snow falls for 0.1 days.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:32 pm MST.
Sunshine
With an average of 6.8h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 3 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start to snow?
What is the month with the shortest days in Morristown?
How many hours of daylight does Morristown have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Morristown, AZ
- Average high temperature in December: 58.8°F
The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (58.8°F).
- Average low temperature in December: 43.3°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is December (43.3°F).
Average pressure in December
Morristown, AZ
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in December
Morristown, AZ
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is December (5.5mph).
Average humidity in December
Morristown, AZ
- Average humidity in December: 45%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (17%).
Average rainfall in December
Morristown, AZ
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is August (1.26").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Morristown, AZ
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is June (1.6 days).
Average snowfall days in December
Morristown, AZ
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Morristown, AZ
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Morristown, AZ
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is May (28.3 days).
The month with the least sunshine days is August (17.1 days).
Average UV index in December
Morristown, AZ
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Morristown, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Morristown, AZ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Morristown, Arizona, USA
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