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 is the month when Charlo sees the lowest average temperatures, with a high of 28.4°F (-2°C) and a low of 16.7°F (-8.5°C).Humidity
In Charlo, the average relative humidity in December is 88%.Rainfall
In December, in Charlo, the rain falls for 9.8 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 129.9 rainfall days, and 13.5" (343mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Charlo, in December, during 14.5 snowfall days, 5.39" (137mm) of snow is typically accumulated. In Charlo, Montana, during the entire year, snow falls for 67.1 days and aggregates up to 28.27" (718mm) of snow.Daylight
December has the shortest days of the year in Charlo, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 8:04 am and sunset at 4:47 pm. On the last day of December, sunrise is at 8:24 am and sunset at 4:56 pm MST.
Sunshine
In December, the average sunshine is 5.1h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index in Charlo. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Charlo?
How cold is December in Charlo?
What is the average humidity in December in Charlo?
How much does it rain in Charlo in December?
How much does it snow in Charlo in December?
What is the month with the shortest days in Charlo?
What is the average length of the day in December in Charlo?
When are sunrise and sunset in December in Charlo?
How long on average sun shines in December in Charlo?
What is the month with the lowest UV index in Charlo?
What is the UV index reading in December in Charlo?
Average temperature in December
Charlo, MT
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in December
Charlo, MT
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Charlo, MT
- Average wind speed in December: 3.9mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).
Average humidity in December
Charlo, MT
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Charlo, MT
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in December
Charlo, MT
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).
Average snowfall in December
Charlo, MT
- Average snowfall in December: 5.39"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Charlo, MT
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Charlo, MT
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Charlo, MT
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (11 days).
Average UV index in December
Charlo, MT
- 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 February and December (UV index 1).
Average cloud cover in December
Charlo, MT
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Charlo, MT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Charlo, Montana, USA
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