Contents
- 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
Weather in December
Temperature
Transition into December marks a drop in the average high-temperature, moving from a frosty 45.3°F (7.4°C) in November to a wintry 32.9°F (0.5°C). In the month of December, an average of 18.3°F (-7.6°C) marks the low-temperature in Castle Dale.Humidity
In Castle Dale, the average relative humidity in December is 72%.Rainfall
In Castle Dale, in December, it is raining for 6.2 days, with typically 0.71" (18mm) of accumulated precipitation. In Castle Dale, during the entire year, the rain falls for 93.6 days and collects up to 9.33" (237mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Castle Dale, Utah. December is the month with the most snowfall in Castle Dale. Snow falls for 8.5 days and accumulates 4.76" (121mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:25 am and sunset at 5:01 pm. On the last day of December, in Castle Dale, Utah, sunrise is at 7:43 am and sunset at 5:11 pm MST.
Sunshine
In Castle Dale, the average sunshine in December is 6.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Castle Dale. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Castle Dale?
What is the average humidity in December in Castle Dale?
How much does it rain in Castle Dale in December?
What is the snowiest month in Castle Dale?
How much does it snow in Castle Dale in December?
What is the month with the shortest days in Castle Dale?
What is the average length of the day in December in Castle Dale?
What time are sunrise and sunset in December in Castle Dale?
How many hours of sunshine does Castle Dale have in December?
When is the lowest UV index in Castle Dale?
What is the UV index intensity in December in Castle Dale?
Average temperature in December
Castle Dale, UT
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 18.3°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Castle Dale, UT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Castle Dale, UT
- 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 (4.8mph).
Average humidity in December
Castle Dale, UT
- Average humidity in December: 72%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is June (28%).
Average rainfall in December
Castle Dale, UT
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.46").
The driest months (with the least rainfall) are January, June and November (0.51").
Average rainfall days in December
Castle Dale, UT
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in December
Castle Dale, UT
- Average snowfall in December: 4.76"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Castle Dale, UT
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is December (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Castle Dale, UT
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Castle Dale, UT
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Castle Dale, UT
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Castle Dale, UT
- Average cloud cover in December: 29
The month with the most cloud cover is January (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 11).
Average visibility in December
Castle Dale, UT
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Castle Dale, Utah, USA
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