December weather forecastSeeley, CA
December
Weather in December
December, the first month of the winter in Seeley, is still a comfortable month, with an average temperature ranging between min 49.1°F (9.5°C) and max 65.8°F (18.8°C).Temperature
December is the coldest month of the year, registering average temperatures as high as 65.8°F (18.8°C) and as low as 49.1°F (9.5°C).Humidity
The months with the highest humidity in Seeley are January and December, with an average relative humidity of 40%.Rainfall
In Seeley, in December, it is raining for 2.5 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, there are 34.3 rainfall days, and 3.27" (83mm) of precipitation is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:27 am and sunset at 4:36 pm. On the last day of December, in Seeley, sunrise is at 6:45 am and sunset at 4:47 pm PST.
Sunshine
The month with the least sunshine in Seeley is December, with an average of 7.1h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during December translates into the following guidance:
Make use of precautions - Suggestions to resist sunburn are communicated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Seeley, CA
- Average high temperature in December: 65.8°F
The warmest month (with the highest average high temperature) is July (105.4°F).
The month with the lowest average high temperature is December (65.8°F).
- Average low temperature in December: 49.1°F
The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).
Average pressure in December
Seeley, CA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in December
Seeley, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in December
Seeley, CA
- Average humidity in December: 40%
The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (22%).
Average rainfall in December
Seeley, CA
- Average rainfall in December: 0.28"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in December
Seeley, CA
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is May (1.1 days).
Average daylight in December /
Average sunshine in December
Seeley, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Seeley, CA
- Average sunshine days in December: 28.5 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in December
Seeley, CA
- Average UV index in December: 4
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in December
Seeley, CA
- Average cloud cover in December: 17
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in December
Seeley, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
