December weather forecast
Grapeland, CA

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Weather in December

December, the first month of the winter in Grapeland, is still a refreshing month, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 61.7°F (16.5°C).

Temperature

With average high and low temperatures of 61.7°F (16.5°C) and 45.3°F (7.4°C) respectively, December is Grapeland's coldest month.

Humidity

The average relative humidity in December is 51%.

Rainfall

In Grapeland, California, during December, the rain falls for 5.5 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 42.3 rainfall days, and 4.53" (115mm) of precipitation is accumulated.

Snowfall

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

Daylight

The month with the shortest days in Grapeland is December, with an average of 9h and 54min of daylight.
On the first day of December in Grapeland, sunrise is at 6:38 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:51 pm PST.

Sunshine

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

UV index

December is the month with the lowest UV index in Grapeland, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What part of the year is the coldest in Grapeland?

During the coldest month in Grapeland, December, temperatures average a high of 61.7°F (16.5°C) and a low of 45.3°F (7.4°C).

What is the usual temperature for Grapeland in December?

The average high-temperature and low-temperature in Grapeland, California, during December are 61.7°F (16.5°C) and 45.3°F (7.4°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 89.6°F (32°C).

What is the average humidity in December in Grapeland?

In December, the average relative humidity is 51%.

How many days does it rain in December in Grapeland?

In Grapeland, in December, during 5.5 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Grapeland?

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

What is the month with the shortest days in Grapeland?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

What is the average length of the day in December in Grapeland?

In Grapeland, the average day length in December is 9h and 55min.

When are sunrise and sunset in December in Grapeland?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 4:40 pm. On the last day of the month, in Grapeland, California, sunrise is at 6:55 am and sunset at 4:51 pm PST.

What are the months with the least sunshine in Grapeland?

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

How many hours of sunshine does Grapeland have in December?

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

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

The month with the lowest UV index in Grapeland, California, is December, with an average maximum UV index of 3.

What is the UV index intensity in December in Grapeland?

The average daily maximum UV index in December in Grapeland is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Grapeland, CA

Average temperature in December - Grapeland, CA
  • Average high temperature in December: 61.7°F

The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in December: 45.3°F

The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).

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Average pressure in December
Grapeland, CA

Average pressure in December - Grapeland, 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 (29.86"Hg).

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Average wind speed in December
Grapeland, CA

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

The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in December
Grapeland, CA

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

The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in December
Grapeland, CA

Average rainfall in December - Grapeland, CA
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Grapeland, CA

Average rainfall days in December - Grapeland, CA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).

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Average snowfall days in December
Grapeland, CA

Average snowfall days in December - Grapeland, 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).

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

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

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Average sunshine days in December
Grapeland, CA

Average sunshine days in December - Grapeland, CA
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).

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Average UV index in December
Grapeland, CA

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

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Grapeland, CA

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

The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in December
Grapeland, CA

Average visibility in December - Grapeland, 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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Grapeland, California, USA

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