December weather forecastLamona, WA
December
Weather in December
The first month of the winter, December, is also an icy month in Lamona, Washington, with an average temperature varying between 25.2°F (-3.8°C) and 33.8°F (1°C).Temperature
December proves to be the coldest month, recording an average maximum temperature of 33.8°F (1°C) and a minimum temperature of 25.2°F (-3.8°C).Humidity
In Lamona, the average relative humidity in December is 82%.Rainfall
In Lamona, during December, the rain falls for 8.4 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Lamona, Washington, during the entire year, the rain falls for 109 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. In December, it is snowing for 7.8 days. Throughout December, 3.35" (85mm) of snow is accumulated. Throughout the year, in Lamona, there are 28.2 snowfall days, and 12.48" (317mm) of snow is accumulated.Daylight
December has the shortest days of the year in Lamona, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:05 pm. On the last day of December, in Lamona, Washington, sunrise is at 7:41 am and sunset at 4:13 pm PST.
Sunshine
With an average of 4.6h of sunshine, December has the least sunshine of the year in Lamona.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. 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
Lamona, WA
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in December
Lamona, WA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in December
Lamona, WA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Lamona, WA
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (34%).
Average rainfall in December
Lamona, WA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is March (1.38").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in December
Lamona, WA
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is July (4.2 days).
Average snowfall in December
Lamona, WA
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Lamona, WA
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Lamona, WA
- 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: 4h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Lamona, WA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in December
Lamona, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Lamona, WA
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in December
Lamona, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
