December weather forecastGalvin, WA
December
Weather in December
December, the first month of the winter in Galvin, is still a cold month, with an average temperature varying between 42.6°F (5.9°C) and 33.1°F (0.6°C).Temperature
Galvin experiences its lowest temperatures in December, with an average peak of 42.6°F (5.9°C) and a low of 33.1°F (0.6°C).Humidity
In Galvin, the average relative humidity in December is 89%.Rainfall
In Galvin, in December, it is raining for 17.9 days, with typically 3.74" (95mm) of accumulated precipitation. In Galvin, Washington, during the entire year, the rain falls for 168 days and collects up to 23.94" (608mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Galvin. In December, it is snowing for 1.2 days. Throughout December, 0.31" (8mm) of snow is accumulated. Throughout the year, in Galvin, there are 7.9 snowfall days, and 4.02" (102mm) of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Galvin.On the first day of the month, sunrise is at 7:37 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:56 am and sunset at 4:34 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 3.5h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Galvin, WA
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in December: 33.1°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 (33.1°F).
Average pressure in December
Galvin, WA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in December
Galvin, WA
- Average wind speed in December: 4.2mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in December
Galvin, WA
- Average humidity in December: 89%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Galvin, WA
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Galvin, WA
- Average rainfall days in December: 17.9 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in December
Galvin, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Galvin, WA
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Galvin, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Galvin, WA
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in December
Galvin, WA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Galvin, WA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Galvin, WA
- Average visibility in December: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
