December weather forecastBradley, CA

December

Weather in December

The first month of the winter, December, is still a mild month in Bradley, California, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 42.8°F (6°C).

Temperature

Bradley experiences its lowest temperatures in December, with an average peak of 58.1°F (14.5°C) and a low of 42.8°F (6°C).

Humidity

The average relative humidity in December is 66%.

Rainfall

In Bradley, California, in December, during 8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 55.2 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:49 pm. On the last day of December, in Bradley, sunrise is at 7:13 am and sunset at 4:59 pm PST.

Sunshine

The months with the least sunshine in Bradley are February and December, with an average of 6.4h of sunshine.

UV index

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 moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 3 in December translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

In Bradley, California, the average lowest temperatures are observed in December, with a high of 58.1°F (14.5°C) and a low of 42.8°F (6°C).

An average high-temperature, in December, in Bradley, is 58.1°F (14.5°C) and the average low-temperature is 42.8°F (6°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 84.2°F (29°C).

The average relative humidity in December in Bradley is 66%.

In December, the rain falls for 8 days. Throughout December, 1.57" (40mm) of precipitation is accumulated.

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

The average day length in December in Bradley is 9h and 46min.

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:49 pm. On the last day of the month, in Bradley, sunrise is at 7:13 am and sunset at 4:59 pm PST.

February and December, with an average of 6.4h of sunshine, are months with the least sunshine.

In Bradley, the average sunshine duration in December is 6.4h.

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

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bradley, CA

  • Average high temperature in December: 58.1°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in December: 42.8°F

The month with the highest average low temperature is August (60.8°F).
The coldest months (with the lowest average low temperature) are February and December (42.8°F).

Average pressure in December
Bradley, CA

  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).

Average wind speed in December
Bradley, CA

  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is May (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in December
Bradley, CA

  • Average humidity in December: 66%

The month with the highest relative humidity is February (68%).
The month with the lowest relative humidity is September (47%).

Average rainfall in December
Bradley, CA

  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Bradley, CA

  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.8 days).

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

  • Average daylight in December: 9h and 48min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 6h and 24min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).

Average sunshine days in December
Bradley, CA

  • Average sunshine days in December: 22 days

The month with the most sunshine days is August (29 days).
The month with the least sunshine days is February (19.8 days).

Average UV index in December
Bradley, CA

  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

Average cloud cover in December
Bradley, CA

  • Average cloud cover in December: 28

The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are July, August and September (Cloud cover 5).

Average visibility in December
Bradley, 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).