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
The start of December signals a decrease in the average high-temperature, transitioning from a cool 50°F (10°C) in November to a cold 37.2°F (2.9°C). Delta witnesses a consistent average low-temperature of 24.1°F (-4.4°C) throughout December.Humidity
In December, the average relative humidity is 72%.Rainfall
In Delta, Utah, in December, it is raining for 6.4 days, with typically 0.71" (18mm) of accumulated precipitation. In Delta, during the entire year, the rain falls for 82.6 days and collects up to 7.01" (178mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall in Delta is December, when snow falls for 8.2 days and typically aggregates up to 3.98" (101mm) of snow.Daylight
The month with the shortest days in Delta, Utah, is December, with an average of 9h and 30min of daylight.On the first day of December in Delta, Utah, sunrise is at 7:31 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:17 pm MST.
Sunshine
In December, the average sunshine is 6.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Delta?
What is the average humidity in December in Delta?
How many days does it rain in December in Delta?
What is the snowiest month in Delta?
How many days does it snow in December in Delta?
What is the month with the shortest days in Delta?
What is the average length of the day in December in Delta?
When is the sunrise / sunset in December in Delta?
How many hours of sunshine does Delta have in December?
What is the month with the lowest UV index in Delta?
What is the UV index reading in December in Delta?
Average temperature in December
Delta, UT
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Delta, 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 (29.86"Hg).
Average wind speed in December
Delta, UT
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is June (8.8mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).
Average humidity in December
Delta, 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 (24%).
Average rainfall in December
Delta, UT
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is March (0.91").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in December
Delta, UT
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is April (10 days).
The month with the least rainy days is June (3.9 days).
Average snowfall in December
Delta, UT
- Average snowfall in December: 3.98"
The month with the highest snowfall is December (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Delta, UT
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is December (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Delta, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in December
Delta, UT
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is June (24.1 days).
The month with the least sunshine days is February (16.3 days).
Average UV index in December
Delta, UT
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Delta, UT
- Average cloud cover in December: 33
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Delta, 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).
Delta, Utah, USA
Weather forecast for your location
2. Allow the app to use your location
