December weather forecast and climate
Gonzales, CA

Weather in December

The first month of the winter, December, is still a mild month in Gonzales, California, with average temperature varying between 40.3°F (4.6°C) and 57.6°F (14.2°C).

Temperature

December is the coldest month, with an average high-temperature of 57.6°F (14.2°C) and an average low-temperature of 40.3°F (4.6°C).

Humidity

In December, the average relative humidity is 70%.

Rainfall

The month with the most rainfall is December when the rain falls for 8.5 days and typically aggregates up to 1.5" (38mm) of precipitation.

Daylight

The month with the shortest days in Gonzales is December, with an average of 9.7h of daylight.

Sunshine

The month with the least sunshine in Gonzales, California, is December, with an average of 5.8h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the coldest month in Gonzales?

December is the coldest month, with an average high-temperature of 57.6°F (14.2°C) and an average low-temperature of 40.3°F (4.6°C).

What is the temperature in December in Gonzales?

In Gonzales, in December, the average high-temperature is 57.6°F (14.2°C), and the average low-temperature is 40.3°F (4.6°C).

What is the average humidity in December in Gonzales?

In Gonzales, the average relative humidity in December is 70%.

How much does it rain in Gonzales in December?

In Gonzales, in December, it is raining for 8.5 days, with typically 1.5" (38mm) of accumulated precipitation.

What is the rainiest month in Gonzales?

December is the month with the most rainfall. Rain falls for 8.5 days and accumulates 1.5" (38mm) of precipitation.

What is the month with the shortest days in Gonzales?

December has the shortest days of the year in Gonzales, California, with an average of 9.7h of daylight.

How many hours of daylight does Gonzales have in December?

In Gonzales, the average length of the day in December is 9.7h.

What is the month with the least sunshine in Gonzales?

December has the least sunshine of the year, with an average of 5.8h of sunshine.

How long on average sun shines in December in Gonzales?

The average sunshine in December in Gonzales is 5.8h.

When is the lowest UV index in Gonzales?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Gonzales.

What is the UV index reading in December in Gonzales?

The average daily maximum UV index in December in Gonzales is 3. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in December
Gonzales, CA

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).

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Average pressure in December
Gonzales, CA

Average pressure in December - Gonzales, CA
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in December
Gonzales, CA

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).

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Average humidity in December
Gonzales, CA

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%).

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Average rainfall in December
Gonzales, CA

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").

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Average rainfall days in December
Gonzales, CA

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).

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Average daylight in December /
Average sunshine in December
Gonzales, CA

Average daylight in December / Average sunshine in December - Gonzales, CA
  • Average daylight in December: 9.7h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in December: 5.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in December
Gonzales, CA

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).

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Average UV index in December
Gonzales, CA

Average UV index in December - Gonzales, CA
  • Average UV index in December: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Gonzales, CA

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).

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Average visibility in December
Gonzales, CA

Average visibility in December - Gonzales, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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