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, on average, is the coldest month, registering a high temperature of 25.7°F (-3.5°C) and a low of 10.6°F (-11.9°C).Humidity
In December, the average relative humidity is 84%.Rainfall
In Leary Place, Montana, in December, it is raining for 6.2 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 111 rainfall days, and 9.25" (235mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Leary Place, Montana, in December, snow falls for 12 days, with typically accumulated 3.9" (99mm) of snow. In Leary Place, during the entire year, snow falls for 73.8 days and aggregates up to 27.52" (699mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:47 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 4:56 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 6.2h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine in Leary Place?
How long on average sun shines in December?
What is the UV index reading in December?
Average temperature in December
Leary Place, MT
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 10.6°F
The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is December (10.6°F).
Average pressure in December
Leary Place, MT
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Leary Place, MT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is November (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Leary Place, MT
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in December
Leary Place, MT
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is June (1.34").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Leary Place, MT
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are November and December (6.2 days).
Average snowfall in December
Leary Place, MT
- Average snowfall in December: 3.9"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Leary Place, MT
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is February (13.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Leary Place, MT
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in December
Leary Place, MT
- Average sunshine days in December: 18 days
The month with the most sunshine days is July (18.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Leary Place, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Leary Place, MT
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Leary Place, MT
- 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).
Leary Place, Montana, USA
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