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 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
December's arrival correlates with a reduction in the average high-temperature, down from a frosty 44.4°F (6.9°C) in November to a wintry 33.1°F (0.6°C). Harrisville experiences a consistent average temperature of 21.2°F (-6°C) throughout the nights in December.Humidity
In December, the average relative humidity in Harrisville is 79%.Rainfall
In December, the rain falls for 9 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. In Harrisville, during the entire year, the rain falls for 113.4 days and collects up to 15.59" (396mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Harrisville. In Harrisville, Utah, during December, snow falls for 11.9 days and regularly aggregates up to 8.94" (227mm) of snow. Throughout the year, there are 55.4 snowfall days, and 45.28" (1150mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:34 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:09 pm MST.
Sunshine
The average sunshine in December is 5.9h.UV index
The months with the lowest UV index in Harrisville are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Harrisville?
What is the average humidity in December in Harrisville?
How much does it rain in Harrisville in December?
How many days does it snow in December in Harrisville?
What is the month with the shortest days in Harrisville?
What is the average length of the day in December in Harrisville?
What time are sunrise and sunset in December in Harrisville?
How long on average sun shines in December in Harrisville?
When is the lowest UV index in Harrisville?
What is the UV index reading in December in Harrisville?
Average temperature in December
Harrisville, UT
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Harrisville, UT
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Harrisville, UT
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in December
Harrisville, UT
- Average humidity in December: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (36%).
Average rainfall in December
Harrisville, UT
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in December
Harrisville, UT
- Average rainfall days in December: 9 days
The months with the highest number of rainy days are March and April (14.3 days).
The month with the least rainy days is July (6.6 days).
Average snowfall in December
Harrisville, UT
- Average snowfall in December: 8.94"
The month with the highest snowfall is January (12.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Harrisville, UT
- Average snowfall days in December: 11.9 days
The months with the highest number of snowfall days are January and February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Harrisville, UT
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Harrisville, UT
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in December
Harrisville, UT
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Harrisville, UT
- Average cloud cover in December: 39
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Harrisville, UT
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (4mi).
Harrisville, Utah, USA
Weather forecast for your location
2. Allow the app to use your location
