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 Calder's coldest month, registering average high temperatures of 31.5°F (-0.3°C) and lows of 20.8°F (-6.2°C).Humidity
In December, the average relative humidity is 90%.Rainfall
In Calder, in December, it is raining for 8 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, in Calder, there are 118.6 rainfall days, and 16.89" (429mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Calder. In December, in Calder, it is snowing for 14.5 days. Throughout December, 9.37" (238mm) of snow is accumulated. In Calder, during the entire year, snow falls for 60.4 days and aggregates up to 44.53" (1131mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:11 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:04 pm PST.
Sunshine
The months with the least sunshine in Calder are January and December, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index in Calder are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Calder?
How cold is December in Calder?
What is the average humidity in December in Calder?
How many days does it rain in December in Calder?
How much does it snow in Calder in December?
What is the month with the shortest days in Calder?
How many hours of daylight does Calder have in December?
When are sunrise and sunset in December in Calder?
What is the month with the least sunshine in Calder?
How long on average sun shines in December in Calder?
What are the months with the lowest UV index in Calder?
What is the UV index reading in December in Calder?
Average temperature in December
Calder, ID
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).
Average pressure in December
Calder, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Calder, ID
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).
Average humidity in December
Calder, ID
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Calder, ID
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is January (2.24").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Calder, ID
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is April (14.4 days).
The month with the least rainy days is July (5.4 days).
Average snowfall in December
Calder, ID
- Average snowfall in December: 9.37"
The month with the highest snowfall is January (11.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Calder, ID
- 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
Calder, ID
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Calder, ID
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in December
Calder, 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
Calder, ID
- Average cloud cover in December: 64
The months with the most cloud cover are January, February and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Calder, ID
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (3mi).
Calder, Idaho, USA
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