December weather forecastMendota, CA
December
Weather in December
December, the first month of the winter in Mendota, is still a refreshing month, with an average temperature varying between 42.3°F (5.7°C) and 55.9°F (13.3°C).Temperature
December, known for its average high temperature of 55.9°F (13.3°C) and an average low temperature of 42.3°F (5.7°C), is the coldest month.Humidity
In December, the average relative humidity in Mendota is 66%.Rainfall
In Mendota, in December, it is raining for 8.5 days, with typically 1.42" (36mm) of accumulated precipitation. In Mendota, during the entire year, the rain falls for 59.3 days and collects up to 8.86" (225mm) of precipitation.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year in Mendota.On the first day of December in Mendota, sunrise is at 6:56 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:55 pm PST.
Sunshine
February and December, with an average of 6.4h of sunshine, are months with the least sunshine in Mendota.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Mendota. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mendota, CA
- Average high temperature in December: 55.9°F
The warmest month (with the highest average high temperature) is July (99.9°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in December: 42.3°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (42.3°F).
Average pressure in December
Mendota, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Mendota, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in December
Mendota, CA
- Average humidity in December: 66%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (31%).
Average rainfall in December
Mendota, CA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is August (0").
Average rainfall days in December
Mendota, CA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (11.4 days).
The month with the least rainy days is August (0.6 days).
Average daylight in December /
Average sunshine in December
Mendota, CA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).
Average sunshine days in December
Mendota, CA
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (18.7 days).
Average UV index in December
Mendota, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Mendota, CA
- Average cloud cover in December: 29
The months with the most cloud cover are March and December (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in December
Mendota, 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).
