December weather forecastTehachapi, CA
December
Weather in December
The first month of the winter, December, is still a cool month in Tehachapi, California, with an average temperature varying between 50.5°F (10.3°C) and 34°F (1.1°C).Temperature
December, with its average high-temperature of 50.5°F (10.3°C) and an average low-temperature of 34°F (1.1°C), holds the record as the coldest month.Humidity
February and December, with an average relative humidity of 58%, are the most humid months.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
December has the shortest days of the year in Tehachapi, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:44 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:52 pm PST.
Sunshine
In Tehachapi, 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 unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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
Tehachapi, 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).





