December weather forecastKeene, CA
December
Weather in December
December, the first month of the winter in Keene, is also a fresh month, with an average temperature ranging between max 50.5°F (10.3°C) and min 34°F (1.1°C).Temperature
During the coldest month, December, temperatures average a high of 50.5°F (10.3°C) and a low of 34°F (1.1°C).Humidity
February and December, with an average relative humidity of 58%, are the most humid months in Keene.Rainfall
The month with the most rainfall is December, when the rain falls for 6.5 days and typically aggregates up to 1.5" (38mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. December is the month with the most snowfall. Snow falls for 2.8 days and accumulates 5.16" (131mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:45 am and sunset at 4:42 pm. On the last day of December, in Keene, sunrise is at 7:02 am and sunset at 4:52 pm PST.
Sunshine
In Keene, the average sunshine in December is 6.7h.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. 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
Keene, CA
- Average high temperature in December: 50.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (50.5°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in December
Keene, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Keene, CA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is May (9.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in December
Keene, CA
- Average humidity in December: 58%
The months with the highest relative humidity are February and December (58%).
The month with the lowest relative humidity is August (28%).
Average rainfall in December
Keene, CA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is December (1.5").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in December
Keene, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is September (1.6 days).
Average snowfall in December
Keene, CA
- Average snowfall in December: 5.16"
The month with the highest snowfall is December (5.16").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Keene, CA
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Keene, CA
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in December
Keene, CA
- Average sunshine days in December: 23 days
The month with the most sunshine days is October (28 days).
The month with the least sunshine days is February (20.4 days).
Average UV index in December
Keene, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in December
Keene, CA
- Average cloud cover in December: 27
The month with the most cloud cover is March (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Keene, 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).
