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
December, with average temperatures reaching a high of 27.9°F (-2.3°C) and a low of 16.2°F (-8.8°C), is the coldest month.Humidity
The average relative humidity in December is 78%.Rainfall
January and December are months with the least rain in Hill when the rain falls for 2.6 days and typically aggregates up to 0.16" (4mm) of rain.Snowfall
January through May, September through December are months with snowfall. In Hill, in December, during 6.9 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Hill, during the entire year, snow falls for 38 days and aggregates up to 8.78" (223mm) of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:57 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 8:17 am and sunset at 4:38 pm MST.
Sunshine
January and December, with an average of 5.4h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is December in Hill?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Hill have in December?
When are sunrise and sunset in December in Hill?
What is the month with the least sunshine?
How long on average sun shines in December in Hill?
When is the lowest UV index?
What is the UV index intensity in December in Hill?
Average temperature in December
Hill, MT
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is August (60.3°F).
The coldest months (with the lowest average low temperature) are February and December (16.2°F).
Average pressure in December
Hill, MT
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Hill, MT
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Hill, MT
- Average humidity in December: 78%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Hill, MT
- Average rainfall in December: 0.16"
The wettest month (with the highest rainfall) is June (1.54").
The driest months (with the least rainfall) are January and December (0.16").
Average rainfall days in December
Hill, MT
- Average rainfall days in December: 2.6 days
The month with the highest number of rainy days is May (12.4 days).
The months with the least rainy days are January and February (2.1 days).
Average snowfall in December
Hill, MT
- Average snowfall in December: 1.02"
The month with the highest snowfall is April (1.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Hill, MT
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is December (6.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hill, MT
- 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 18min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Hill, MT
- Average sunshine days in December: 23.9 days
The months with the most sunshine days are January and December (23.9 days).
The months with the least sunshine days are May and June (16.3 days).
Average UV index in December
Hill, MT
- 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, March, October, November and December (UV index 2).
Average cloud cover in December
Hill, MT
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in December
Hill, MT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hill, Montana, USA
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