December weather forecastLoomis, WA
December
Weather in December
December, the first month of the winter in Loomis, is still a freezing cold month, with temperature in the range of an average low of 13.1°F (-10.5°C) and an average high of 27°F (-2.8°C).Temperature
Loomis's coldest month, December, generally records average temperatures ranging from a high of 27°F (-2.8°C) to a low of 13.1°F (-10.5°C).Humidity
In Loomis, the average relative humidity in December is 92%.Rainfall
In Loomis, in December, during 5.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 112.2 rainfall days, and 14.69" (373mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. The month with the most snowfall is December, when snow falls for 17.3 days and typically aggregates up to 9.76" (248mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:04 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:12 pm PST.
Sunshine
In Loomis, the average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Loomis, WA
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in December: 13.1°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 (13.1°F).
Average pressure in December
Loomis, WA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in December
Loomis, WA
- Average wind speed in December: 3.7mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.7mph).
Average humidity in December
Loomis, WA
- Average humidity in December: 92%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Loomis, WA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is August (0.47").
Average rainfall days in December
Loomis, WA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (5.7 days).
Average snowfall in December
Loomis, WA
- Average snowfall in December: 9.76"
The month with the highest snowfall is December (9.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Loomis, WA
- Average snowfall days in December: 17.3 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Loomis, WA
- Average daylight in December: 8h and 18min
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 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Loomis, WA
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in December
Loomis, WA
- 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
Loomis, WA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Loomis, WA
- Average visibility in December: 3mi
The months with the highest visibility are April, May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
