December weather forecastSwatara, MN
December
Weather in December
December, the first month of the winter in Swatara, is still a freezing cold month, with an average temperature varying between 9.3°F (-12.6°C) and 20.7°F (-6.3°C).Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's icy 34.9°F (1.6°C) to a freezing cold 20.7°F (-6.3°C). In the month of December, the temperature in Swatara generally rests at an average low of 9.3°F (-12.6°C).Humidity
In December, the average relative humidity is 90%.Rainfall
In Swatara, in December, during 2.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Swatara, during the entire year, the rain falls for 113.8 days and collects up to 18.94" (481mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 19.9 days and typically aggregates up to 7.2" (183mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 4:27 pm. On the last day of December, in Swatara, sunrise is at 7:59 am and sunset at 4:36 pm CST.
Sunshine
In Swatara, the average sunshine in December is 2.4h.UV index
The months with the lowest UV index in Swatara are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Swatara, MN
- Average high temperature in December: 20.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (15.8°F).
- Average low temperature in December: 9.3°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in December
Swatara, MN
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Swatara, MN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Swatara, MN
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Swatara, MN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in December
Swatara, MN
- Average rainfall days in December: 2.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Swatara, MN
- Average snowfall in December: 7.2"
The month with the highest snowfall is December (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Swatara, MN
- Average snowfall days in December: 19.9 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Swatara, MN
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Swatara, MN
- Average sunshine days in December: 12.3 days
The months with the most sunshine days are August and September (16.5 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in December
Swatara, 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
Swatara, MN
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Swatara, MN
- Average visibility in December: 4mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
