December weather forecastCave Junction, OR
December
Weather in December
December culminates the year with Cave Junction in the full swing of winter, experiencing average high and low temperatures of 46°F (7.8°C) and 31.5°F (-0.3°C). Most notably, December experiences the highest amount of rainfall in the year, at a significant 4.02" (102mm) spanned across 15.9 days. The relative humidity escalates to 84%, making it the most humid month of the year. The daylight duration is shortest in December, limited to just 9.2 hours. Cave Junction wraps up the year under a wintry cloak, offering beautiful snowy landscapes for residents and visitors.Temperature
December, with an average high of 46°F (7.8°C) and a low of 31.5°F (-0.3°C), signifies the coldest month of the year.Humidity
In Cave Junction, 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
Months with snowfall are January through April, November and December. In Cave Junction, in December, during 1.1 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, there are 7.9 snowfall days, and 5.12" (130mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:52 pm PST.
Sunshine
With an average of 4.7h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, OR
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 42min
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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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
Cave Junction, 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).
