December weather forecastHanna, UT

December

Weather in December

December, the first month of the winter in Hanna, is still a freezing cold month, with an average temperature fluctuating between 25.7°F (-3.5°C) and 7.5°F (-13.6°C).

Temperature

The coldest month is December, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 7.5°F (-13.6°C).

Humidity

The average relative humidity in December is 86%.

Rainfall

In Hanna, in December, it is raining for 4.1 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 87.6 rainfall days, and 17.36" (441mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. The month with the most snowfall in Hanna is December, when snow falls for 14.9 days and typically aggregates up to 13.82" (351mm) of snow.

Daylight

The month with the shortest days in Hanna is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:06 pm MST.

Sunshine

The average sunshine in December is 5h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 1 in December translates into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Hanna experiences its average lowest temperatures in December, reaching a peak of 25.7°F (-3.5°C) and a minimum of 7.5°F (-13.6°C).

In December, in Hanna, the average high-temperature is 25.7°F (-3.5°C), and the average low-temperature is 7.5°F (-13.6°C).

In Hanna, the average relative humidity in December is 86%.

In Hanna, in December, during 4.1 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

The month with the most snowfall is December, when snow falls for 14.9 days and typically aggregates up to 13.82" (351mm) of snow.

In Hanna, in December, snow falls for 14.9 days, with typically accumulated 13.82" (351mm) of snow.

December has the shortest days of the year, with an average of 9h and 18min of daylight.

In Hanna, the average day length in December is 9h and 21min.

On the first day of December, sunrise is at 7:27 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:06 pm MST.

The average sunshine duration in December is 5h.

With an average maximum UV index of 1, December is the month with the lowest UV index.

In Hanna, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Hanna, UT

  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (75.2°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in December: 7.5°F

The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).

Average pressure in December
Hanna, UT

  • Average pressure in December: 30.21"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Hanna, UT

  • Average wind speed in December: 5.6mph

The windiest months (with the highest average wind speed) are April and June (6.8mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in December
Hanna, UT

  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are June, July and August (48%).

Average rainfall in December
Hanna, UT

  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is June (0.87").

Average rainfall days in December
Hanna, UT

  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is August (14 days).
The months with the least rainy days are February and November (2.5 days).

Average snowfall in December
Hanna, UT

  • Average snowfall in December: 13.82"

The month with the highest snowfall is December (13.82").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Hanna, UT

  • Average snowfall days in December: 14.9 days

The month with the highest number of snowfall days is February (16 days).
The month with the least snowfall days is July (0 days).

Average daylight in December /
Average sunshine in December
Hanna, UT

  • Average daylight in December: 9h and 18min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in December
Hanna, UT

  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is February (12.4 days).

Average UV index in December
Hanna, UT

  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Hanna, UT

  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 15).

Average visibility in December
Hanna, UT

  • Average visibility in December: 4mi

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