December weather forecast
Caspar, CA

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Weather in December

The first month of the winter, December, is still a cool month in Caspar, California, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 46.2°F (7.9°C).

Temperature

During February and December, Caspar experiences its lowest temperatures, averaging a high-temperature of 54.3°F (12.4°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.4 days and typically aggregates up to 1.77" (45mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

December has the shortest days of the year in Caspar, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:02 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.5h 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 value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in December transforms into this advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What time of the year is the coldest?

Caspar's lowest temperatures tend to occur in February and December, with an average high-temperature of 54.3°F (12.4°C).

What is the average December temperature?

The average high-temperature and low-temperature during December are 54.3°F (12.4°C) and 46.2°F (7.9°C) respectively.

What is the average humidity in December in Caspar?

In December, the average relative humidity is 76%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 10.4 days and typically aggregates up to 1.77" (45mm) of precipitation.

How many days does it rain in December?

In Caspar, in December, during 10.4 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow?

January, March through December are months without snowfall.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Caspar have in December?

In December, the average day length is 9h and 27min.

When is the sunrise / sunset in December in Caspar?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:02 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.5h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Caspar, CA

Average temperature in December - Caspar, CA
  • Average high temperature in December: 54.3°F

The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

Average pressure in December
Caspar, CA

Average pressure in December - Caspar, CA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed in December
Caspar, CA

Average wind speed in December - Caspar, CA
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity in December
Caspar, CA

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

The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Caspar, CA

Average rainfall in December - Caspar, CA
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").

Average rainfall days in December
Caspar, CA

Average rainfall days in December - Caspar, CA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).

Average snowfall in December
Caspar, CA

Average snowfall in December - Caspar, CA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Caspar, CA

Average snowfall days in December - Caspar, CA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Caspar, CA

Average sunshine days in December - Caspar, CA
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).

Average UV index in December
Caspar, CA

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Caspar, CA

Average cloud cover in December - Caspar, CA
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in December
Caspar, CA

Average visibility in December - Caspar, 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).

Caspar, California, USA

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