December weather forecast
Madison, CA

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Weather in December

December, the first month of the winter in Madison, is still a cool month, with an average temperature ranging between min 41.5°F (5.3°C) and max 54.3°F (12.4°C).

Temperature

Madison reaches its lowest average temperatures in December, measuring 54.3°F (12.4°C) at the peak and 41.5°F (5.3°C) at the lowest.

Humidity

In December, the average relative humidity is 70%.

Rainfall

In Madison, in December, it is raining for 10.5 days, with typically 2.13" (54mm) of accumulated precipitation. In Madison, during the entire year, the rain falls for 70.7 days and collects up to 12.52" (318mm) of precipitation.

Snowfall

December is the only month when snow falls. December has the most snowfall days of the year in Madison. Snow falls for 0.1 days.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:56 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.7h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the UV index of 3 transforms into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

December is the month when Madison experiences its coldest temperatures, averaging a high of 54.3°F (12.4°C) and a low of 41.5°F (5.3°C).

What is the temperature in December?

Madison in December has an average high-temperature of 54.3°F (12.4°C) and an average low-temperature of 41.5°F (5.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 89.6°F (32°C).

What is the average humidity in December?

In Madison, the average relative humidity in December is 70%.

How much does it rain in December?

In Madison, in December, it is raining for 10.5 days, with typically 2.13" (54mm) of accumulated precipitation.

When does it snow the most?

December has the most snowfall days of the year. Snow falls for 0.1 days.

When does it start snowing?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Madison?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Madison have in December?

In December, the average day length is 9h and 31min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:56 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.7h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.7h.

What are the months with 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 reading in December?

In Madison, the average daily maximum UV index in December is 3. A UV Index value 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
Madison, CA

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

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in December: 41.5°F

The months with the highest average low temperature are July and August (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (41.5°F).

Average pressure in December
Madison, CA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Madison, CA

Average wind speed in December - Madison, CA
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is September (5mph).

Average humidity in December
Madison, CA

Average humidity in December - Madison, CA
  • Average humidity in December: 70%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (43%).

Average rainfall in December
Madison, CA

Average rainfall in December - Madison, CA
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is February (2.52").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Madison, CA

Average rainfall days in December - Madison, CA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (0.8 days).

Average snowfall days in December
Madison, CA

Average snowfall days in December - Madison, CA
  • Average snowfall days in December: 0.1 days

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

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 4min

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 42min).

Average sunshine days in December
Madison, CA

Average sunshine days in December - Madison, CA
  • Average sunshine days in December: 19.4 days

The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (16.8 days).

Average UV index in December
Madison, CA

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

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

Average cloud cover in December
Madison, CA

Average cloud cover in December - Madison, CA
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Madison, CA

Average visibility in December - Madison, 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).

Madison, California, USA

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