December weather - Winter 2024

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

The crossroads near a large lit temple in Rexburg, Idaho, with a view of the rest of the city and a colorful, cloudy sunset sky on the horizon

Weather in December

December sees Rexburg fully engulfed in winter, associated with a sharp drop in temperatures to around 26.6°F (-3°C) for the high and 14.9°F (-9.5°C) for the low. Snowfall becomes frequent, wrapping the city in a thick blanket of white. The fading daylight hours and frequent snow give Rexburg a wonderful wintery ambiance, closing out the year in a serene, frosty setting. Sustained low temperatures and high humidity ensure that the mesmerizing white panorama persists into the New Year.

Temperature

Temperature readings reach their annual highs in December, averaging 26.6°F (-3°C) and a minimum average of 14.9°F (-9.5°C).

Humidity

The average relative humidity in December is 87%.

Rainfall

In Rexburg, during December, the rain falls for 9.3 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Rexburg, there are 120.3 rainfall days, and 11.02" (280mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Rexburg, Idaho, are January through May, September through December. In Rexburg, in December, snow falls for 17.6 days, with typically accumulated 6.38" (162mm) of snow. In Rexburg, during the entire year, snow falls for 84.8 days and aggregates up to 31.85" (809mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of December in Rexburg, sunrise is at 7:42 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:59 pm MST.

Sunshine

In Rexburg, Idaho, the average sunshine in December is 5.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

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Frequently asked questions

What is the coldest time of year in Rexburg?

With its average high temperature of 26.6°F (-3°C) and a low of 14.9°F (-9.5°C), December is regarded as the coldest month.

How cold is December in Rexburg?

December temperatures in Rexburg, Idaho, vary between a high-temperature of 26.6°F (-3°C) and a low-temperature of 14.9°F (-9.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in July is appraised at 84.2°F (29°C).

What is the average humidity in December in Rexburg?

In December, the average relative humidity in Rexburg is 87%.

How much does it rain in Rexburg in December?

In December, in Rexburg, the rain falls for 9.3 days. Throughout December, 0.87" (22mm) of precipitation is accumulated.

How much does it snow in Rexburg in December?

In Rexburg, during December, snow falls for 17.6 days and regularly aggregates up to 6.38" (162mm) of snow.

What is the month with the shortest days in Rexburg?

December has the shortest days of the year in Rexburg, with an average of 9h and 0min of daylight.

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

In December, the average day length is 8h and 59min.

What time are sunrise and sunset in December in Rexburg?

In December, on the first day of the month, sunrise is at 7:42 am and sunset at 4:50 pm. On the last day of the month, in Rexburg, sunrise is at 8:01 am and sunset at 4:59 pm MST.

How many hours of sunshine does Rexburg have in December?

The average sunshine duration in December in Rexburg, Idaho, is 5.1h.

What are the months with the lowest UV index in Rexburg?

The months with the lowest UV index in Rexburg, Idaho, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Rexburg?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

39.6°F 4.2°C

26.6°F -3°C

27.5°F -2.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6mph 9.7km/h

4.9mph 7.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.8

11.4

12.7

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Rexburg, ID

Average high temperature in December: 26.6°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (26.6°F).

Average low temperature in December: 14.9°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure in December
Rexburg, ID

Average pressure in December: 30.26"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Rexburg, ID

Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

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Average humidity in December
Rexburg, ID

Average humidity in December: 87%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (38%).

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Average rainfall in December
Rexburg, ID

Average rainfall in December: 0.87"

The wettest months (with the highest rainfall) are April and May (1.26").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days in December
Rexburg, ID

Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is July (6.3 days).

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Average snowfall in December
Rexburg, ID

Average snowfall in December: 6.38"

The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Rexburg, ID

Average snowfall days in December: 17.6 days

The months with the highest number of snowfall days are January and February (18.1 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Rexburg, ID

Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in December
Rexburg, ID

Average sunshine days in December: 11.4 days

The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in December
Rexburg, ID

Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Rexburg, ID

Average cloud cover in December: 50

The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in December
Rexburg, ID

Average visibility in December: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

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December weather forecast
Rexburg, ID

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