December weather forecast
Claremont, CA

Share
Mabel Shaw Bridges Hall of Music in the Pomona College in Claremont, California
Mabel Shaw Bridges Hall of Music in the Pomona College in Claremont, California

Weather in December

The first month of the winter, December, is still a comfortable month in Claremont, California, with an average temperature fluctuating between 63.1°F (17.3°C) and 46.8°F (8.2°C).

Temperature

December proves to be the coldest month, recording an average maximum temperature of 63.1°F (17.3°C) and a minimum temperature of 46.8°F (8.2°C).

Humidity

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

Rainfall

The months with the most rainfall in Claremont are February and December, with an average 1.65" (42mm) of precipitation.

Snowfall

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

Daylight

The month with the shortest days in Claremont is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of December, in Claremont, sunrise is at 6:56 am and sunset at 4:52 pm PST.

Sunshine

The months with the least sunshine are February and December, with an average of 6.9h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Claremont. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in December leads to these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
[Resources]

Frequently asked questions

What month is the coldest in Claremont?

Claremont's December weather, with an average high temperature of 63.1°F (17.3°C) and an average low temperature of 46.8°F (8.2°C), tends to be the coldest of the year.

What are the temperatures in Claremont in December?

December temperatures in Claremont vary between a high-temperature of 63.1°F (17.3°C) and a low-temperature of 46.8°F (8.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in December in Claremont?

The average relative humidity in December in Claremont is 51%.

What is the rainiest month in Claremont?

The months with the most rainfall in Claremont are February and December, with an average 1.65" (42mm) of precipitation.

How many days does it rain in December in Claremont?

In Claremont, California, during December, the rain falls for 5.8 days and regularly aggregates up to 1.65" (42mm) of precipitation.

When it does not snow in Claremont?

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

What is the month with the shortest days in Claremont?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Claremont have in December?

In December, the average day length is 9h and 56min.

When are sunrise and sunset in December in Claremont?

On the first day of December in Claremont, California, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Claremont?

February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Claremont, California.

How long on average sun shines in December in Claremont?

In December, the average sunshine duration in Claremont, California, is 6.9h.

When is the lowest UV index in Claremont?

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

How high is the UV index in December in Claremont?

In Claremont, California, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Claremont, CA

Average temperature in December - Claremont, CA
  • Average high temperature in December: 63.1°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in December: 46.8°F

The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (46.8°F).

[Resources]

Average pressure in December
Claremont, CA

Average pressure in December - Claremont, 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 (29.87"Hg).

[Resources]

Average wind speed in December
Claremont, CA

Average wind speed in December - Claremont, CA
  • Average wind speed in December: 5mph

The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

[Resources]

Average humidity in December
Claremont, CA

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

The month with the highest relative humidity is May (56%).
The months with the lowest relative humidity are August and November (45%).

[Resources]

Average rainfall in December
Claremont, CA

Average rainfall in December - Claremont, CA
  • Average rainfall in December: 1.65"

The wettest months (with the highest rainfall) are February and December (1.65").
The driest months (with the least rainfall) are June and August (0.04").

[Resources]

Average rainfall days in December
Claremont, CA

Average rainfall days in December - Claremont, CA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (0.8 days).

[Resources]

Average snowfall days in December
Claremont, CA

Average snowfall days in December - Claremont, 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).

[Resources]

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

Average daylight in December / Average sunshine in December - Claremont, 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 months with the least sunshine are February and December (Average sunshine: 6h and 54min).

[Resources]

Average sunshine days in December
Claremont, CA

Average sunshine days in December - Claremont, CA
  • Average sunshine days in December: 23.7 days

The month with the most sunshine days is June (28.7 days).
The month with the least sunshine days is February (21.1 days).

[Resources]

Average UV index in December
Claremont, CA

Average UV index in December - Claremont, CA
  • Average UV index in December: 4

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).

[Resources]

Average cloud cover in December
Claremont, CA

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

The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

[Resources]

Average visibility in December
Claremont, CA

Average visibility in December - Claremont, 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).

[Resources]

Claremont, California, USA

Weather forecast for your location

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