December weather forecast
Diamond Springs, CA

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Weather in December

December, the first month of the winter in Diamond Springs, is also a fresh month, with temperature in the range of an average high of 50.7°F (10.4°C) and an average low of 36°F (2.2°C).

Temperature

December proves to be the coldest month, recording an average maximum temperature of 50.7°F (10.4°C) and a minimum temperature of 36°F (2.2°C).

Humidity

In Diamond Springs, the average relative humidity in December is 68%.

Rainfall

In Diamond Springs, in December, it is raining for 11 days, with typically 4.76" (121mm) of accumulated precipitation. In Diamond Springs, during the entire year, the rain falls for 86.4 days and collects up to 29.69" (754mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, in Diamond Springs, California, it is snowing for 0.7 days. Throughout December, 0.91" (23mm) of snow is accumulated. Throughout the year, in Diamond Springs, there are 6.9 snowfall days, and 14.09" (358mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of December, in Diamond Springs, sunrise is at 7:21 am and sunset at 4:52 pm PST.

Sunshine

With an average of 5.9h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December in Diamond Springs is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What month is the coldest in Diamond Springs?

Temperature readings reach their annual highs in December, averaging 50.7°F (10.4°C) and a minimum average of 36°F (2.2°C).

What are December temperatures in Diamond Springs?

An average high-temperature, in December, in Diamond Springs, is 50.7°F (10.4°C) and the average low-temperature is 36°F (2.2°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in September is calculated to be 82.4°F (28°C).

What is the average humidity in December in Diamond Springs?

In December, the average relative humidity is 68%.

How much does it rain in Diamond Springs in December?

In Diamond Springs, California, in December, during 11 rainfall days, 4.76" (121mm) of precipitation is typically accumulated.

How much does it snow in Diamond Springs in December?

In December, in Diamond Springs, California, it is snowing for 0.7 days. Throughout December, 0.91" (23mm) of snow is accumulated.

What is the month with the shortest days in Diamond Springs?

The month with the shortest days in Diamond Springs, California, is December, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Diamond Springs?

In Diamond Springs, the average day length in December is 9h and 31min.

When is the sunrise / sunset in December in Diamond Springs?

On the first day of December in Diamond Springs, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Diamond Springs?

With an average of 5.9h of sunshine, December has the least sunshine of the year in Diamond Springs.

How long on average sun shines in December in Diamond Springs?

In Diamond Springs, California, the average sunshine duration in December is 5.9h.

What is the UV index reading in December in Diamond Springs?

In Diamond Springs, California, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Diamond Springs, CA

Average temperature in December - Diamond Springs, CA
  • Average high temperature in December: 50.7°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (50.7°F).

  • Average low temperature in December: 36°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (36°F).

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Average pressure in December
Diamond Springs, CA

Average pressure in December - Diamond Springs, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Diamond Springs, CA

Average wind speed in December - Diamond Springs, CA
  • Average wind speed in December: 5.1mph

The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Diamond Springs, CA

Average humidity in December - Diamond Springs, CA
  • Average humidity in December: 68%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is July (39%).

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Average rainfall in December
Diamond Springs, CA

Average rainfall in December - Diamond Springs, CA
  • Average rainfall in December: 4.76"

The wettest month (with the highest rainfall) is March (5.98").
The driest month (with the least rainfall) is July (0").

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Average rainfall days in December
Diamond Springs, CA

Average rainfall days in December - Diamond Springs, CA
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is July (0.9 days).

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Average snowfall in December
Diamond Springs, CA

Average snowfall in December - Diamond Springs, CA
  • Average snowfall in December: 0.91"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Diamond Springs, CA

Average snowfall days in December - Diamond Springs, CA
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Diamond Springs, CA

Average daylight in December / Average sunshine in December - Diamond Springs, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in December
Diamond Springs, CA

Average sunshine days in December - Diamond Springs, CA
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (13.8 days).

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Average UV index in December
Diamond Springs, CA

Average UV index in December - Diamond Springs, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 2).

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Average cloud cover in December
Diamond Springs, CA

Average cloud cover in December - Diamond Springs, CA
  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in December
Diamond Springs, CA

Average visibility in December - Diamond Springs, 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).

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Diamond Springs, California, USA

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