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
December is the coldest month, with the temperature often reaching an average high of 36.1°F (2.3°C) and an average low of 24.3°F (-4.3°C).Humidity
With an average relative humidity of 81%, December is the most humid month.Rainfall
In Post, during December, the rain falls for 5.6 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 65.5 rainfall days, and 5.67" (144mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall. In Post, in December, snow falls for 4.8 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, in Post, there are 20.9 snowfall days, and 9.02" (229mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:17 am and sunset at 4:24 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:33 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What are the coldest months in Post?
How cold is it in Post in December?
What is the most humid month in Post?
What is the average humidity in December in Post?
How much does it rain in Post in December?
How many days does it snow in December in Post?
What is the month with the shortest days in Post?
What is the average length of the day in December in Post?
When are sunrise and sunset in December in Post?
What is the month with the least sunshine in Post?
How many hours of sunshine does Post have in December?
What is the month with the lowest UV index in Post?
What is the UV index reading in December in Post?
Average temperature in December
Post, OR
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (36.1°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in December
Post, OR
- 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 (29.96"Hg).
Average wind speed in December
Post, OR
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).
Average humidity in December
Post, OR
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (43%).
Average rainfall in December
Post, OR
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (0.67").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Post, OR
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is July (2 days).
Average snowfall in December
Post, OR
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Post, OR
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Post, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Post, OR
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (19.5 days).
Average UV index in December
Post, 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, March, November and December (UV index 2).
Average cloud cover in December
Post, OR
- Average cloud cover in December: 45
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Post, OR
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Post, Oregon, USA
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