December weather forecastThermal, CA
December
Weather in December
The first month of the winter, December, is also a moderate month in Thermal, California, with an average temperature varying between 60.6°F (15.9°C) and 46.8°F (8.2°C).Temperature
December, with its high-temperature average of 60.6°F (15.9°C) and a low-temperature average of 46.8°F (8.2°C), is the coldest month.Humidity
With an average relative humidity of 46%, December is the most humid month.Rainfall
In Thermal, in December, it is raining for 5 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Thermal, there are 46.2 rainfall days, and 4.09" (104mm) 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 December, sunrise is at 6:31 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 4:46 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 7.1h of sunshine.UV index
The month with the lowest UV index in Thermal is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in December translates into these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thermal, CA
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in December: 46.8°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in December
Thermal, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in December
Thermal, CA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is May (8.2mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in December
Thermal, CA
- Average humidity in December: 46%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (29%).
Average rainfall in December
Thermal, CA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is July (0.79").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in December
Thermal, CA
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is July (6.9 days).
The month with the least rainy days is June (1.5 days).
Average daylight in December /
Average sunshine in December
Thermal, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
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
Thermal, CA
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in December
Thermal, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Thermal, 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
Thermal, 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).
