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
In the transition to December, Willard observes a drop in the average high-temperature, moving from a wintry 40.1°F (4.5°C) in November to a freezing cold 26.6°F (-3°C). In Willard, December's nights observe an average temperature dip to a still subzero cold 14.9°F (-9.5°C).Humidity
In Willard, the average relative humidity in December is 82%.Rainfall
January and December are months with the least rain when the rain falls for 3.5 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
January through May, September through December are months with snowfall in Willard, Montana. In Willard, in December, snow falls for 11.3 days, with typically accumulated 3.35" (85mm) of snow. Throughout the year, in Willard, Montana, there are 62.4 snowfall days, and 21.97" (558mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Willard.On the first day of the month, sunrise is at 7:20 am and sunset at 4:13 pm. On the last day of December, in Willard, sunrise is at 7:40 am and sunset at 4:21 pm MST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.8h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during December translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Willard?
What is the average humidity in December in Willard?
What is the driest month in Willard?
How much does it rain in Willard in December?
How many days does it snow in December in Willard?
What is the month with the shortest days in Willard?
What is the average length of the day in December in Willard?
What time are sunrise and sunset in December in Willard?
What is the month with the least sunshine in Willard?
How many hours of sunshine does Willard have in December?
What are the months with the lowest UV index in Willard?
What is the UV index reading in December in Willard?
Average temperature in December
Willard, MT
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Willard, MT
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Willard, MT
- Average wind speed in December: 11.4mph
The windiest months (with the highest average wind speed) are April and October (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (10.1mph).
Average humidity in December
Willard, MT
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (46%).
Average rainfall in December
Willard, MT
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (2.6").
The driest months (with the least rainfall) are January and December (0.55").
Average rainfall days in December
Willard, MT
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in December
Willard, MT
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Willard, MT
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Willard, MT
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Willard, MT
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Willard, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Willard, MT
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in December
Willard, 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).
Willard, Montana, USA
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