December weather forecastOverly, ND
December
Weather in December
December, the first month of the winter in Overly, is also a subzero cold month, with an average temperature fluctuating between 6.4°F (-14.2°C) and 17.6°F (-8°C).Temperature
December signals a clear decrease in the average high-temperature, dropping from November's icy 32.9°F (0.5°C) to a subzero cold 17.6°F (-8°C). In the month of December, Overly records a consistent average low-temperature of 6.4°F (-14.2°C).Humidity
In Overly, the average relative humidity in December is 91%.Rainfall
In Overly, North Dakota, during December, the rain falls for 3.1 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Overly, North Dakota, during the entire year, the rain falls for 106.7 days and collects up to 17.05" (433mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Overly. In Overly, in December, snow falls for 16.7 days, with typically accumulated 4.13" (105mm) of snow. In Overly, during the entire year, snow falls for 90.1 days and aggregates up to 24.17" (614mm) of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December in Overly, sunrise is at 8:12 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 8:33 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December is 3.3h.UV index
The months with the lowest UV index in Overly are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Overly, ND
- Average high temperature in December: 17.6°F
The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is January (14.7°F).
- Average low temperature in December: 6.4°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (0.1°F).
Average pressure in December
Overly, ND
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Overly, ND
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is October (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in December
Overly, ND
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (58%).
Average rainfall in December
Overly, ND
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Overly, ND
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
Overly, ND
- Average snowfall in December: 4.13"
The month with the highest snowfall is November (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Overly, ND
- Average snowfall days in December: 16.7 days
The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Overly, ND
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Overly, ND
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is August (19 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Overly, ND
- 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 and December (UV index 1).
Average cloud cover in December
Overly, ND
- Average cloud cover in December: 67
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Overly, ND
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
