December weather forecast
Rimforest, CA

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Weather in December

December, the first month of the winter in Rimforest, is still a refreshing month, with an average temperature fluctuating between 57.7°F (14.3°C) and 41.5°F (5.3°C).

Temperature

December, noted for its average high-temperature of 57.7°F (14.3°C) and an average low-temperature of 41.5°F (5.3°C), is considered the coldest month.

Humidity

In Rimforest, the average relative humidity in December is 51%.

Rainfall

The month with the most rainfall is December, when the rain falls for 6.8 days and typically aggregates up to 1.42" (36mm) of precipitation.

Snowfall

In Rimforest, snow does not fall in January, March through December.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:37 am and sunset at 4:39 pm. On the last day of December, sunrise is at 6:54 am and sunset at 4:49 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 6.9h of sunshine.

UV index

November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

In Rimforest, the average lowest temperatures are observed in December, with a high of 57.7°F (14.3°C) and a low of 41.5°F (5.3°C).

What is the temperature in December?

An average high-temperature, in December, in Rimforest, is 57.7°F (14.3°C) and the average low-temperature is 41.5°F (5.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in June is appraised at 84.2°F (29°C).

What is the average humidity in December?

In December, the average relative humidity is 51%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.42" (36mm) of precipitation.

How many days does it rain in December?

In Rimforest, California, in December, during 6.8 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow?

In Rimforest, snow does not fall in January, March through December.

What is the month with the shortest days?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Rimforest?

In December, the average day length is 9h and 55min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:37 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:49 pm PST.

What is the month with the least sunshine?

The month with the least sunshine in Rimforest is December, with an average of 6.9h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 6.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Rimforest, CA

Average temperature in December - Rimforest, CA
  • Average high temperature in December: 57.7°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is December (57.7°F).

  • Average low temperature in December: 41.5°F

The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (41.5°F).

Average pressure in December
Rimforest, CA

Average pressure in December - Rimforest, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Rimforest, CA

Average wind speed in December - Rimforest, CA
  • Average wind speed in December: 5.4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is September (4.8mph).

Average humidity in December
Rimforest, CA

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

The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is August (36%).

Average rainfall in December
Rimforest, CA

Average rainfall in December - Rimforest, CA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
Rimforest, CA

Average rainfall days in December - Rimforest, CA
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.3 days).

Average snowfall days in December
Rimforest, CA

Average snowfall days in December - Rimforest, 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
Rimforest, CA

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

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

  • Average sunshine in December: 6h 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: 6h and 54min).

Average sunshine days in December
Rimforest, CA

Average sunshine days in December - Rimforest, CA
  • Average sunshine days in December: 22.9 days

The month with the most sunshine days is June (28.5 days).
The month with the least sunshine days is February (20.9 days).

Average UV index in December
Rimforest, CA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).

Average cloud cover in December
Rimforest, CA

Average cloud cover in December - Rimforest, CA
  • Average cloud cover in December: 21

The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in December
Rimforest, CA

Average visibility in December - Rimforest, 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).

Rimforest, California, USA

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