December weather forecast
Seeley, CA

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Weather in December

December, the first month of the winter in Seeley, is still a comfortable month, with an average temperature ranging between min 49.1°F (9.5°C) and max 65.8°F (18.8°C).

Temperature

During the coldest month, December, temperatures average a high of 65.8°F (18.8°C) and a low of 49.1°F (9.5°C).

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 40%.

Rainfall

In Seeley, in December, during 2.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Seeley, during the entire year, the rain falls for 34.3 days and collects up to 3.27" (83mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 6:27 am and sunset at 4:36 pm. On the last day of December, in Seeley, sunrise is at 6:45 am and sunset at 4:47 pm PST.

Sunshine

With an average of 7.1h of sunshine, December has the least sunshine of the year.

UV index

December is the month with the lowest UV index in Seeley, California, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 4 during December leads to these advisories:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the coldest months in Seeley?

Seeley's December weather, with an average high temperature of 65.8°F (18.8°C) and an average low temperature of 49.1°F (9.5°C), tends to be the coldest of the year.

What is the usual temperature for Seeley in December?

During December, Seeley experiences an average high-temperature of 65.8°F (18.8°C) and a low-temperature of 49.1°F (9.5°C).

What are the most humid months in Seeley?

January and December, with an average relative humidity of 40%, are most humid months.

What is the average humidity in December in Seeley?

In December, the average relative humidity in Seeley, California, is 40%.

How much does it rain in Seeley in December?

In Seeley, during December, the rain falls for 2.5 days and regularly aggregates up to 0.28" (7mm) of precipitation.

What is the month with the shortest days in Seeley?

December has the shortest days of the year in Seeley, California, with an average of 10h and 0min of daylight.

How many hours of daylight does Seeley have in December?

In Seeley, California, the average day length in December is 10h and 2min.

When are sunrise and sunset in December in Seeley?

In December, on the first day of the month, sunrise is at 6:27 am and sunset at 4:36 pm. On the last day of the month, in Seeley, sunrise is at 6:45 am and sunset at 4:47 pm PST.

What is the month with the least sunshine in Seeley?

The month with the least sunshine in Seeley, California, is December, with an average of 7.1h of sunshine.

How long on average sun shines in December in Seeley?

In Seeley, California, the average sunshine duration in December is 7.1h.

When is the lowest UV index in Seeley?

December is the month with the lowest UV index in Seeley, with an average maximum UV index of 4.

What is the UV index reading in December in Seeley?

In December, the average daily maximum UV index is 4. 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Seeley, CA

Average temperature in December - Seeley, CA
  • Average high temperature in December: 65.8°F

The warmest month (with the highest average high temperature) is July (105.4°F).
The month with the lowest average high temperature is December (65.8°F).

  • Average low temperature in December: 49.1°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

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Average pressure in December
Seeley, CA

Average pressure in December - Seeley, CA
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

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Average wind speed in December
Seeley, CA

Average wind speed in December - Seeley, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in December
Seeley, CA

Average humidity in December - Seeley, CA
  • Average humidity in December: 40%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (22%).

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Average rainfall in December
Seeley, CA

Average rainfall in December - Seeley, CA
  • Average rainfall in December: 0.28"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days in December
Seeley, CA

Average rainfall days in December - Seeley, CA
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is May (1.1 days).

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

Average daylight in December / Average sunshine in December - Seeley, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

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Average sunshine days in December
Seeley, CA

Average sunshine days in December - Seeley, CA
  • Average sunshine days in December: 28.5 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

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Average UV index in December
Seeley, CA

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

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in December
Seeley, CA

Average cloud cover in December - Seeley, CA
  • Average cloud cover in December: 17

The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).

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Average visibility in December
Seeley, CA

Average visibility in December - Seeley, 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).

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Seeley, California, USA

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