December weather forecastNespelem, WA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Nespelem, Washington, with temperature in the range of an average high of 31.6°F (-0.2°C) and an average low of 21.4°F (-5.9°C).Temperature
In Nespelem, Washington, the lowest average temperatures are observed in December, with a high of 31.6°F (-0.2°C) and a low of 21.4°F (-5.9°C).Humidity
The average relative humidity in December is 86%.Rainfall
The months with the most rainfall in Nespelem are May and December, with an average 1.18" (30mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. In Nespelem, in December, during 10.5 snowfall days, 3.78" (96mm) of snow is typically accumulated. Throughout the year, in Nespelem, there are 33.4 snowfall days, and 14.65" (372mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:04 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:12 pm PST.
Sunshine
In Nespelem, the average sunshine in December is 4.4h.UV index
In Nespelem, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nespelem, WA
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in December
Nespelem, WA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Nespelem, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in December
Nespelem, WA
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in December
Nespelem, WA
- Average rainfall in December: 1.18"
The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in December
Nespelem, WA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in December
Nespelem, WA
- Average snowfall in December: 3.78"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Nespelem, WA
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Nespelem, WA
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Nespelem, WA
- Average sunshine days in December: 16 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in December
Nespelem, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Nespelem, WA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Nespelem, WA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
