December weather forecast
Cassel, CA

Share

Weather in December

December, the first month of the winter in Cassel, is still a chilly month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 43.3°F (6.3°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 43.3°F (6.3°C) and a low of 27.9°F (-2.3°C).

Humidity

In Cassel, the average relative humidity in December is 76%.

Rainfall

In Cassel, during December, the rain falls for 12.5 days and regularly aggregates up to 4.21" (107mm) of precipitation. In Cassel, during the entire year, the rain falls for 105 days and collects up to 24.69" (627mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Cassel. In Cassel, during December, snow falls for 7.5 days and regularly aggregates up to 8.11" (206mm) of snow. Throughout the year, there are 36.7 snowfall days, and 43.62" (1108mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:48 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 5.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Cassel's coldest weather arrives in December, when temperatures average a high of 43.3°F (6.3°C) and a low of 27.9°F (-2.3°C).

How cold is December?

In Cassel, in December, the average high-temperature is 43.3°F (6.3°C), and the average low-temperature is 27.9°F (-2.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How much does it rain in December?

In Cassel, during December, the rain falls for 12.5 days and regularly aggregates up to 4.21" (107mm) of precipitation.

How much does it snow in December?

In Cassel, in December, during 7.5 snowfall days, 8.11" (206mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year in Cassel, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 17min.

When are sunrise and sunset in December?

On the first day of December in Cassel, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:48 pm PST.

What is the month with the least sunshine?

With an average of 5.7h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

The average sunshine duration in December in Cassel is 5.7h.

When is the lowest UV index?

The months with the lowest UV index in Cassel are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Cassel, CA

Average temperature in December - Cassel, CA
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).

Average pressure in December
Cassel, CA

Average pressure in December - Cassel, CA
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in December
Cassel, CA

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

The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Cassel, CA

Average humidity in December - Cassel, CA
  • Average humidity in December: 76%

The months with the highest relative humidity are January and March (79%).
The months with the lowest relative humidity are July and August (40%).

Average rainfall in December
Cassel, CA

Average rainfall in December - Cassel, CA
  • Average rainfall in December: 4.21"

The wettest month (with the highest rainfall) is March (4.45").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in December
Cassel, CA

Average rainfall days in December - Cassel, CA
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is August (2.3 days).

Average snowfall in December
Cassel, CA

Average snowfall in December - Cassel, CA
  • Average snowfall in December: 8.11"

The month with the highest snowfall is March (10.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cassel, CA

Average snowfall days in December - Cassel, CA
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Cassel, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 4min

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 42min).

Average sunshine days in December
Cassel, CA

Average sunshine days in December - Cassel, CA
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.3 days).

Average UV index in December
Cassel, CA

Average UV index in December - Cassel, CA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Cassel, CA

Average cloud cover in December - Cassel, CA
  • Average cloud cover in December: 38

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in December
Cassel, CA

Average visibility in December - Cassel, CA
  • Average visibility in December: 5mi

The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).

Cassel, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location