December weather forecast
Meridian, CA

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Weather in December

December, the first month of the winter in Meridian, is still a cool month, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 54.5°F (12.5°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 54.5°F (12.5°C) and a low of 42.1°F (5.6°C).

Humidity

In December, the average relative humidity is 67%.

Rainfall

The wettest months are February and December, with an average 1.3" (33mm) of rainfall.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:55 pm PST.

Sunshine

With an average of 5.8h of sunshine, December has the least sunshine of the year.

UV index

February, 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 medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 3 in December leads to these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

In Meridian, December records the average lowest temperatures, peaking at 54.5°F (12.5°C) and reaching a low of 42.1°F (5.6°C).

What is the temperature in December?

During December, Meridian experiences an average high-temperature of 54.5°F (12.5°C) and a low-temperature of 42.1°F (5.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in June is computed to be 93.2°F (34°C).

What is the average humidity in December?

The average relative humidity in December is 67%.

What is the rainiest month?

The wettest months are February and December, with an average 1.3" (33mm) of rainfall.

How much does it rain in Meridian in December?

In December, the rain falls for 7.6 days. Throughout December, 1.3" (33mm) of precipitation is accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Meridian have in December?

In December, the average day length is 9h and 28min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:55 pm PST.

What is the month with the least sunshine?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Meridian?

In December, the average sunshine duration is 5.8h.

What is the month with the lowest UV index in Meridian?

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

How high is the UV index in December?

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

Average temperature in December
Meridian, CA

Average temperature in December - Meridian, CA
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 42.1°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).

Average pressure in December
Meridian, CA

Average pressure in December - Meridian, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Meridian, CA

Average wind speed in December - Meridian, CA
  • Average wind speed in December: 5.9mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Meridian, CA

Average humidity in December - Meridian, CA
  • Average humidity in December: 67%

The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).

Average rainfall in December
Meridian, CA

Average rainfall in December - Meridian, CA
  • Average rainfall in December: 1.3"

The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Meridian, CA

Average rainfall days in December - Meridian, CA
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).

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

Average daylight in December / Average sunshine in December - Meridian, CA
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 5h and 5min

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 48min).

Average sunshine days in December
Meridian, CA

Average sunshine days in December - Meridian, CA
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).

Average UV index in December
Meridian, CA

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

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).

Average cloud cover in December
Meridian, CA

Average cloud cover in December - Meridian, CA
  • Average cloud cover in December: 36

The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Meridian, CA

Average visibility in December - Meridian, 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).

Meridian, California, USA

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