Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
During the coldest month, December, temperatures average a high of 46.2°F (7.9°C) and a low of 33.8°F (1°C).Humidity
January through March and December, with an average relative humidity of 86%, are the most humid months in Thurston.Rainfall
December is the month with the most rainfall in Thurston, Oregon. Rain falls for 13.4 days and accumulates 1.54" (39mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Thurston. Throughout December, in the average 0.6 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, in Thurston, there are 5 snowfall days, and 2.36" (60mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Thurston.On the first day of December, sunrise is at 7:27 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:43 pm PST.
Sunshine
In December, the average sunshine is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Thurston. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What month is the coldest in Thurston?
What is the average December temperature in Thurston?
What are the most humid months in Thurston?
What is the average humidity in December in Thurston?
What is the wettest month in Thurston?
How much does it rain in Thurston in December?
When does it start to snow in Thurston?
What is the month with the shortest days in Thurston?
How many hours of daylight does Thurston have in December?
What time are sunrise and sunset in December in Thurston?
How long on average sun shines in December in Thurston?
What is the month with the lowest UV index in Thurston?
How high is the UV index in December in Thurston?
Average temperature in December
Thurston, OR
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is August (81.3°F).
The month with the lowest average high temperature is December (46.2°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).
Average pressure in December
Thurston, OR
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Thurston, OR
- Average wind speed in December: 4.4mph
The windiest months (with the highest average wind speed) are January and March (4.5mph).
The calmest months (with the lowest average wind speed) are August and September (3.6mph).
Average humidity in December
Thurston, OR
- Average humidity in December: 86%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Thurston, OR
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Thurston, OR
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is December (13.4 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in December
Thurston, OR
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Thurston, OR
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.3 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
Thurston, OR
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Thurston, OR
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Thurston, OR
- Average UV index in December: 2
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 2).
Average cloud cover in December
Thurston, OR
- Average cloud cover in December: 58
The months with the most cloud cover are February and March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Thurston, OR
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Thurston, Oregon, USA
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