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 lowest temperatures are recorded in December, with averages reaching a high of 27.7°F (-2.4°C) and a low of 16.7°F (-8.5°C).Humidity
The average relative humidity in December in Coolin, Idaho, is 92%.Rainfall
December is the month with the most rainfall in Coolin, Idaho. Rain falls for 6.8 days and accumulates 2.83" (72mm) of precipitation.Snowfall
Months with snowfall in Coolin, Idaho, are January through May, September through December. In Coolin, in December, snow falls for 17.6 days, with typically accumulated 14.69" (373mm) of snow. Throughout the year, there are 81.3 snowfall days, and 59.45" (1510mm) of snow is accumulated.Daylight
The month with the shortest days in Coolin is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 3:54 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:02 pm PST.
Sunshine
In Coolin, Idaho, the average sunshine in December is 3.3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Coolin. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the coldest time of year in Coolin?
How cold is December in Coolin?
What is the average humidity in December in Coolin?
What is the rainiest month in Coolin?
How many days does it rain in December in Coolin?
How many days does it snow in December in Coolin?
What is the month with the shortest days in Coolin?
How many hours of daylight does Coolin have in December?
What time are sunrise and sunset in December in Coolin?
How many hours of sunshine does Coolin have in December?
What are the months with the lowest UV index in Coolin?
What is the UV index reading in December in Coolin?
Average temperature in December
Coolin, ID
- Average high temperature in December: 27.7°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is August (47.1°F).
The coldest months (with the lowest average low temperature) are February and December (16.7°F).
Average pressure in December
Coolin, ID
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Coolin, ID
- Average wind speed in December: 3.4mph
The windiest months (with the highest average wind speed) are April and May (4.2mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in December
Coolin, ID
- Average humidity in December: 92%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Coolin, ID
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is December (2.83").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in December
Coolin, ID
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is April (17.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Coolin, ID
- Average snowfall in December: 14.69"
The month with the highest snowfall is January (14.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Coolin, ID
- Average snowfall days in December: 17.6 days
The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Coolin, ID
- 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Coolin, ID
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is August (21 days).
The month with the least sunshine days is April (9 days).
Average UV index in December
Coolin, ID
- 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 January, February, November and December (UV index 1).
Average cloud cover in December
Coolin, ID
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Coolin, ID
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Coolin, Idaho, USA
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