December weather forecastOrin, WA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Orin, Washington, with an average temperature fluctuating between 17.6°F (-8°C) and 29.3°F (-1.5°C).Temperature
With average temperatures fluctuating between a high of 29.3°F (-1.5°C) and a low of 17.6°F (-8°C), December stands out as the coldest month.Humidity
In Orin, Washington, the average relative humidity in December is 90%.Rainfall
The wettest months are November and December, with an average 1.54" (39mm) of rainfall.Snowfall
Months with snowfall are January through April, September through December. In Orin, Washington, in December, snow falls for 13.9 days, with typically accumulated 6.93" (176mm) of snow. In Orin, during the entire year, snow falls for 57.6 days and aggregates up to 27.87" (708mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 3:58 pm. On the last day of December, in Orin, sunrise is at 7:43 am and sunset at 4:06 pm PST.
Sunshine
The average sunshine in December is 4.2h.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Orin, WA
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in December: 17.6°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in December
Orin, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Orin, WA
- Average wind speed in December: 3.1mph
The windiest month (with the highest average wind speed) is April (4mph).
The calmest months (with the lowest average wind speed) are January and December (3.1mph).
Average humidity in December
Orin, WA
- Average humidity in December: 90%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Orin, WA
- Average rainfall in December: 1.54"
The wettest months (with the highest rainfall) are November and December (1.54").
The driest month (with the least rainfall) is August (0.28").
Average rainfall days in December
Orin, WA
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in December
Orin, WA
- Average snowfall in December: 6.93"
The month with the highest snowfall is January (7.8").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Orin, WA
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Orin, WA
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Orin, WA
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in December
Orin, WA
- Average UV index in December: 1
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 1).
Average cloud cover in December
Orin, WA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Orin, WA
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
