December weather forecastCataldo, ID
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Cataldo, Idaho, with an average temperature fluctuating between 19.8°F (-6.8°C) and 30.4°F (-0.9°C).Temperature
December is the coldest month, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 19.8°F (-6.8°C).Humidity
In Cataldo, the average relative humidity in December is 90%.Rainfall
In Cataldo, in December, it is raining for 8 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 140.1 rainfall days, and 22.2" (564mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Cataldo, in December, during 13.5 snowfall days, 9.65" (245mm) of snow is typically accumulated. Throughout the year, there are 57.8 snowfall days, and 45.31" (1151mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 3:56 pm. On the last day of December, in Cataldo, sunrise is at 7:33 am and sunset at 4:04 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index in Cataldo are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cataldo, ID
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (19.8°F).
Average pressure in December
Cataldo, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Cataldo, 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 September and December (4mph).
Average humidity in December
Cataldo, 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
Cataldo, ID
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is January (2.8").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in December
Cataldo, ID
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Cataldo, ID
- Average snowfall in December: 9.65"
The month with the highest snowfall is January (12.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Cataldo, ID
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Cataldo, ID
- Average daylight in December: 8h and 30min
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: 3h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 36min).
Average sunshine days in December
Cataldo, ID
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is July (22.9 days).
The month with the least sunshine days is March (8.7 days).
Average UV index in December
Cataldo, 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
Cataldo, 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 14).
Average visibility in December
Cataldo, ID
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
