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
A clear reduction in the average high-temperature marks the arrival of December, falling from a cold 38.1°F (3.4°C) in November to a subzero cold 22.3°F (-5.4°C). Westport records an average nighttime low-temperature of 12.2°F (-11°C) throughout December.Humidity
The average relative humidity in December is 88%.Rainfall
In Westport, during December, the rain falls for 2.5 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 98.2 rainfall days, and 15.63" (397mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 11.1 days and accumulates 3.31" (84mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:41 am and sunset at 4:38 pm. On the last day of December, in Westport, sunrise is at 8:01 am and sunset at 4:46 pm CST.
Sunshine
In December, the average sunshine is 3.5h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Westport, MN
- Average high temperature in December: 22.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in December: 12.2°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (4.1°F).
Average pressure in December
Westport, MN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Westport, MN
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.7mph).
Average humidity in December
Westport, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Westport, MN
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (2.64").
The driest months (with the least rainfall) are January and February (0.39").
Average rainfall days in December
Westport, MN
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in December
Westport, MN
- Average snowfall in December: 3.31"
The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westport, MN
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westport, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Westport, MN
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in December
Westport, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Westport, MN
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Westport, MN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Westport, Minnesota, USA
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