December weather forecastGonzales, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Gonzales, California, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 57.6°F (14.2°C).Temperature
December, having an average high-temperature of 57.6°F (14.2°C) and an average low-temperature of 40.3°F (4.6°C), is the coldest month.Humidity
In December, the average relative humidity is 70%.Rainfall
December is the month with the most rainfall. Rain falls for 8.5 days and accumulates 1.5" (38mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:00 pm PST.
Sunshine
December has the least sunshine of the year in Gonzales, with an average of 5.8h of sunshine.UV index
The months with the lowest UV index in Gonzales are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gonzales, CA
- Average high temperature in December: 57.6°F
The warmest month (with the highest average high temperature) is August (86.2°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is February (39.9°F).
Average pressure in December
Gonzales, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in December
Gonzales, CA
- Average wind speed in December: 4.6mph
The windiest months (with the highest average wind speed) are May and June (6mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).
Average humidity in December
Gonzales, CA
- Average humidity in December: 70%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (55%).
Average rainfall in December
Gonzales, CA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Gonzales, CA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (0.7 days).
Average daylight in December /
Average sunshine in December
Gonzales, 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: 5h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Gonzales, CA
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in December
Gonzales, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Gonzales, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in December
Gonzales, 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).
