December weather forecastWaltham, MN
December
Weather in December
December, the first month of the winter in Waltham, is still a freezing cold month, with an average temperature varying between 26.1°F (-3.3°C) and 15.6°F (-9.1°C).Temperature
A notable decrease in the average high-temperature is observed during December, falling from an icy 41°F (5°C) in November to a freezing cold 26.1°F (-3.3°C). Nighttime temperatures consistently average a still subzero cold 15.6°F (-9.1°C) during December.Humidity
The average relative humidity in December in Waltham is 88%.Rainfall
In December, in Waltham, Minnesota, the rain falls for 4.7 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. In Waltham, during the entire year, the rain falls for 125.5 days and collects up to 23.66" (601mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Waltham. In Waltham, Minnesota, in December, snow falls for 12.8 days, with typically accumulated 4.29" (109mm) of snow. In Waltham, during the entire year, snow falls for 58.6 days and aggregates up to 23.98" (609mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:44 pm CST.
Sunshine
The average sunshine in December is 3.6h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Waltham. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 suggests these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Waltham, MN
- Average high temperature in December: 26.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in December: 15.6°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Waltham, MN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Waltham, MN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in December
Waltham, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Waltham, MN
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
Waltham, MN
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in December
Waltham, MN
- Average snowfall in December: 4.29"
The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Waltham, MN
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waltham, MN
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Waltham, MN
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Waltham, 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
Waltham, 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 August (Cloud cover 33).
Average visibility in December
Waltham, 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).
