December weather forecastHilmar, CA
December
Weather in December
December, the first month of the winter in Hilmar, is still a refreshing month, with an average temperature varying between 56.1°F (13.4°C) and 41.9°F (5.5°C).Temperature
During the coldest month, December, temperatures average a high of 56.1°F (13.4°C) and a low of 41.9°F (5.5°C).Humidity
In Hilmar, the average relative humidity in December is 69%.Rainfall
In Hilmar, during December, the rain falls for 9.3 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Hilmar, California, during the entire year, the rain falls for 65.2 days and collects up to 11.61" (295mm) of precipitation.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Hilmar, California.On the first day of the month, sunrise is at 6:59 am and sunset at 4:45 pm. On the last day of December, in Hilmar, sunrise is at 7:17 am and sunset at 4:55 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6.1h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hilmar, CA
- Average high temperature in December: 56.1°F
The warmest month (with the highest average high temperature) is July (98.1°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in December: 41.9°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 (41.9°F).
Average pressure in December
Hilmar, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Hilmar, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).
Average humidity in December
Hilmar, CA
- Average humidity in December: 69%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (35%).
Average rainfall in December
Hilmar, CA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is March (2.24").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Hilmar, CA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is March (12.1 days).
The months with the least rainy days are June and August (1.1 days).
Average daylight in December /
Average sunshine in December
Hilmar, CA
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Hilmar, CA
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in December
Hilmar, 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
Hilmar, CA
- Average cloud cover in December: 32
The months with the most cloud cover are March and December (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Hilmar, 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).
