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
Grants Pass's December weather, with an average high temperature of 46°F (7.8°C) and an average low temperature of 31.5°F (-0.3°C), tends to be the coldest of the year.Humidity
In Grants Pass, Oregon, the average relative humidity in December is 84%.Rainfall
December is the month with the most rainfall. Rain falls for 15.9 days and accumulates 4.02" (102mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Grants Pass, in December, during 1.1 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, in Grants Pass, there are 7.9 snowfall days, and 5.12" (130mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December in Grants Pass, sunrise is at 7:23 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:50 pm PST.
Sunshine
With an average of 4.7h of sunshine, December has the least sunshine of the year in Grants Pass.UV index
The months with the lowest UV index in Grants Pass are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To guard against the harmful effects of the Sun, minimize exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What part of the year is the coldest in Grants Pass?
What is the average December temperature in Grants Pass?
What is the average humidity in December in Grants Pass?
What is the rainiest month in Grants Pass?
How many days does it rain in December in Grants Pass?
How much does it snow in Grants Pass in December?
What is the month with the shortest days in Grants Pass?
What is the average length of the day in December in Grants Pass?
When is the sunrise / sunset in December in Grants Pass?
What is the month with the least sunshine in Grants Pass?
How many hours of sunshine does Grants Pass have in December?
What are the months with the lowest UV index in Grants Pass?
How high is the UV index in December in Grants Pass?
Average temperature in December
Grants Pass, OR
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).
Average pressure in December
Grants Pass, OR
- 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 (29.99"Hg).
Average wind speed in December
Grants Pass, OR
- Average wind speed in December: 3.7mph
The windiest month (with the highest average wind speed) is March (4mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).
Average humidity in December
Grants Pass, OR
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
Grants Pass, OR
- Average rainfall in December: 4.02"
The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Grants Pass, OR
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in December
Grants Pass, OR
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grants Pass, OR
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.8 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
Grants Pass, OR
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Grants Pass, OR
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in December
Grants Pass, 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
Grants Pass, OR
- Average cloud cover in December: 52
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Grants Pass, OR
- Average visibility in December: 4mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Grants Pass, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location
