December weather forecast
Calera, OK

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Weather in December

December, the first month of the winter in Calera, is also a fresh month, with an average temperature varying between 38.3°F (3.5°C) and 52.7°F (11.5°C).

Temperature

With the beginning of December, the average high-temperature shows a decrease, transitioning from a comfortable 62.1°F (16.7°C) in November to a fresh 52.7°F (11.5°C). Calera records an average temperature drop to a wintry 38.3°F (3.5°C) in December.

Humidity

In Calera, the average relative humidity in December is 72%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 139 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Calera, in December, during 0.4 snowfall days, 0.2" (5mm) of snow is typically accumulated. In Calera, during the entire year, snow falls for 3.4 days and aggregates up to 1.93" (49mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:13 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:27 pm CST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Calera in December?

In Calera, 52.7°F (11.5°C) is the average high-temperature and 38.3°F (3.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In December, the average relative humidity is 72%.

How much does it rain in December?

In Calera, during December, the rain falls for 9.1 days and regularly aggregates up to 1.85" (47mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 0.4 days. Throughout December, 0.2" (5mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 56min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:27 pm CST.

What is the month with the least sunshine?

With an average of 5.5h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Calera have in December?

In December, the average sunshine duration is 5.5h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 2.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Calera, OK

Average temperature in December - Calera, OK
  • Average high temperature in December: 52.7°F

The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).

Average pressure in December
Calera, OK

Average pressure in December - Calera, OK
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Calera, OK

Average wind speed in December - Calera, OK
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in December
Calera, OK

Average humidity in December - Calera, OK
  • Average humidity in December: 72%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (61%).

Average rainfall in December
Calera, OK

Average rainfall in December - Calera, OK
  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in December
Calera, OK

Average rainfall days in December - Calera, OK
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Calera, OK

Average snowfall in December - Calera, OK
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Calera, OK

Average snowfall days in December - Calera, OK
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Calera, OK

Average daylight in December / Average sunshine in December - Calera, OK
  • 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: 5h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Calera, OK

Average sunshine days in December - Calera, OK
  • Average sunshine days in December: 20 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is March (14.6 days).

Average UV index in December
Calera, OK

Average UV index in December - Calera, OK
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Calera, OK

Average cloud cover in December - Calera, OK
  • Average cloud cover in December: 38

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Calera, OK

Average visibility in December - Calera, OK
  • 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).

Calera, Oklahoma, USA

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