December weather forecastOdessa, WA
December
Weather in December
The first month of the winter, December, is still a cold month in Odessa, Washington, with an average temperature ranging between min 25.2°F (-3.8°C) and max 33.8°F (1°C).Temperature
Odessa's coldest month, December, generally records average temperatures ranging from a high of 33.8°F (1°C) to a low of 25.2°F (-3.8°C).Humidity
In December, the average relative humidity in Odessa, Washington, is 82%.Rainfall
In December, the rain falls for 8.4 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Odessa, during the entire year, the rain falls for 109 days and collects up to 10.59" (269mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. In Odessa, in December, snow falls for 7.8 days, with typically accumulated 3.35" (85mm) of snow. In Odessa, during the entire year, snow falls for 28.2 days and aggregates up to 12.48" (317mm) of snow.Daylight
The month with the shortest days is December, 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 4:06 pm. On the last day of December, in Odessa, sunrise is at 7:41 am and sunset at 4:14 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 4.6h of sunshine.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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
Odessa, 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).
