December weather forecast
Silt, CA

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Weather in December

The first month of the winter, December, is also a fresh month in Silt, California, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 38.1°F (3.4°C).

Temperature

Silt experiences its lowest average temperatures in December, reaching a peak of 55°F (12.8°C) and a minimum of 38.1°F (3.4°C).

Humidity

With an average relative humidity of 51%, December is the most humid month.

Rainfall

The month with the most rainfall in Silt is December, when the rain falls for 4.9 days and typically aggregates up to 0.83" (21mm) of precipitation.

Snowfall

Months with snowfall are January, November and December. In Silt, in December, during 0.1 snowfall days, 0.28" (7mm) of snow is typically accumulated. Throughout the year, there are 0.7 snowfall days, and 1.1" (28mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:41 am and sunset at 4:39 pm. On the last day of December, in Silt, sunrise is at 6:58 am and sunset at 4:49 pm PST.

Sunshine

The average sunshine in December in Silt is 7.1h.

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 value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Experience reduced UV exposure by about half when donning a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

With its average high temperature of 55°F (12.8°C) and a low of 38.1°F (3.4°C), December is regarded as the coldest month.

What is the average December temperature?

The high-temperature during December is 55°F (12.8°C) and the low-temperature is 38.1°F (3.4°C).

What is the most humid month?

With an average relative humidity of 51%, December is the most humid month.

What is the average humidity in December?

The average relative humidity in December is 51%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 4.9 days and typically aggregates up to 0.83" (21mm) of precipitation.

How many days does it rain in December in Silt?

In Silt, California, in December, it is raining for 4.9 days, with typically 0.83" (21mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 0.1 days. Throughout December, 0.28" (7mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In Silt, California, the average day length in December is 9h and 51min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:41 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:49 pm PST.

How long on average sun shines in December?

The average sunshine duration in December in Silt is 7.1h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Silt, CA

Average temperature in December - Silt, CA
  • Average high temperature in December: 55°F

The warmest month (with the highest average high temperature) is July (95.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in December: 38.1°F

The month with the highest average low temperature is August (70.3°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).

Average pressure in December
Silt, CA

Average pressure in December - Silt, CA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Silt, CA

Average wind speed in December - Silt, CA
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is May (11.8mph).
The calmest month (with the lowest average wind speed) is January (6.5mph).

Average humidity in December
Silt, CA

Average humidity in December - Silt, CA
  • Average humidity in December: 51%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is August (24%).

Average rainfall in December
Silt, CA

Average rainfall in December - Silt, CA
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is December (0.83").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
Silt, CA

Average rainfall days in December - Silt, CA
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is March (5.5 days).
The month with the least rainy days is June (0.9 days).

Average snowfall in December
Silt, CA

Average snowfall in December - Silt, CA
  • Average snowfall in December: 0.28"

The month with the highest snowfall is November (0.71").
The months with the least snowfall are February, March, April, May, June, July, August, September and October (0").

Average snowfall days in December
Silt, CA

Average snowfall days in December - Silt, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Silt, CA
  • Average daylight in December: 9h and 5min

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

  • Average sunshine in December: 7h and 1min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).

Average sunshine days in December
Silt, CA

Average sunshine days in December - Silt, CA
  • Average sunshine days in December: 25 days

The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (22.8 days).

Average UV index in December
Silt, CA

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

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Silt, CA

Average cloud cover in December - Silt, CA
  • Average cloud cover in December: 19

The months with the most cloud cover are March and December (Cloud cover 19).
The months with the least cloud cover are June, August and September (Cloud cover 5).

Average visibility in December
Silt, CA

Average visibility in December - Silt, 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).

Silt, California, USA

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