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
The shift into December brings a noticeable decrease in the average high-temperature, falling from an icy 34.9°F (1.6°C) in November to a subzero cold 18.3°F (-7.6°C). Throughout the month of December, Saint Thomas expects an average low of 7.5°F (-13.6°C).Humidity
The average relative humidity in December in Saint Thomas, North Dakota, is 89%.Rainfall
In Saint Thomas, during December, the rain falls for 2.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Saint Thomas, during the entire year, the rain falls for 97.8 days and collects up to 15.83" (402mm) of precipitation.Snowfall
Months with snowfall in Saint Thomas are January through May, October through December. December is the month with the most snowfall in Saint Thomas. Snow falls for 14 days and accumulates 3.94" (100mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 8:01 am and sunset at 4:36 pm. On the last day of December, in Saint Thomas, sunrise is at 8:22 am and sunset at 4:44 pm CST.
Sunshine
The average sunshine in December in Saint Thomas is 3.8h.UV index
In Saint Thomas, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Saint Thomas?
What is the average humidity in December in Saint Thomas?
How much does it rain in Saint Thomas in December?
When does it snow the most in Saint Thomas?
How much does it snow in Saint Thomas in December?
What is the month with the shortest days in Saint Thomas?
How many hours of daylight does Saint Thomas have in December?
When are sunrise and sunset in December in Saint Thomas?
How long on average sun shines in December in Saint Thomas?
What is the UV index intensity in December in Saint Thomas?
Average temperature in December
Saint Thomas, ND
- Average high temperature in December: 18.3°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is January (14.7°F).
- Average low temperature in December: 7.5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in December
Saint Thomas, ND
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Saint Thomas, ND
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is October (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in December
Saint Thomas, ND
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Saint Thomas, ND
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is June (2.8").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Saint Thomas, ND
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in December
Saint Thomas, ND
- Average snowfall in December: 3.94"
The month with the highest snowfall is December (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Thomas, ND
- Average snowfall days in December: 14 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Thomas, ND
- Average daylight in December: 8h and 2min
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 5min
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 12min).
Average sunshine days in December
Saint Thomas, ND
- Average sunshine days in December: 17 days
The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in December
Saint Thomas, ND
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in December
Saint Thomas, ND
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Saint Thomas, 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, February, March and December (5mi).
Saint Thomas, North Dakota, USA
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