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 tends to be the coldest month, with temperatures averaging a daily high of 30.4°F (-0.9°C) and a low of 18.5°F (-7.5°C).Humidity
In Packwood, the average relative humidity in December is 92%.Rainfall
In December, the rain falls for 5.7 days. Throughout December, 5.59" (142mm) of precipitation is accumulated. Throughout the year, there are 96.1 rainfall days, and 36.54" (928mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through July, September through December. In December, it is snowing for 20.9 days. Throughout December, 37.01" (940mm) of snow is accumulated. Throughout the year, there are 147 snowfall days, and 210.2" (5339mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:29 pm PST.
Sunshine
In Packwood, Washington, the average sunshine in December is 3.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is December?
What is the average humidity in December in Packwood?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Packwood have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Packwood, WA
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in December
Packwood, WA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Packwood, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Packwood, WA
- Average humidity in December: 92%
The month with the highest relative humidity is February (93%).
The months with the lowest relative humidity are July and August (63%).
Average rainfall in December
Packwood, WA
- Average rainfall in December: 5.59"
The wettest month (with the highest rainfall) is January (6.14").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Packwood, WA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is October (12.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Packwood, WA
- Average snowfall in December: 37.01"
The month with the highest snowfall is January (41.73").
The month with the least snowfall is August (0").
Average snowfall days in December
Packwood, WA
- Average snowfall days in December: 20.9 days
The month with the highest number of snowfall days is March (22.2 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in December /
Average sunshine in December
Packwood, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 18min).
Average sunshine days in December
Packwood, WA
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Packwood, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Packwood, WA
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in December
Packwood, WA
- Average visibility in December: 3mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Packwood, Washington, USA
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