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
December stands out as Cornish's coldest month, with temperatures ranging between an average high of 28.6°F (-1.9°C) and a low of 15.1°F (-9.4°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In December, the rain falls for 8.2 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. In Cornish, during the entire year, the rain falls for 117.9 days and collects up to 17.68" (449mm) of precipitation.Snowfall
Months with snowfall in Cornish are January through May, September through December. In Cornish, in December, snow falls for 15.1 days, with typically accumulated 11.73" (298mm) of snow. Throughout the year, in Cornish, there are 71.1 snowfall days, and 56.1" (1425mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Cornish.On the first day of the month, sunrise is at 7:36 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:55 am and sunset at 5:06 pm MST.
Sunshine
In December, the average sunshine in Cornish is 5.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Cornish. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What time of the year is the coldest in Cornish?
How cold is it in Cornish in December?
What is the average humidity in December in Cornish?
How much does it rain in Cornish in December?
How many days does it snow in December in Cornish?
What is the month with the shortest days in Cornish?
How many hours of daylight does Cornish have in December?
What time are sunrise and sunset in December in Cornish?
How long on average sun shines in December in Cornish?
What are the months with the lowest UV index in Cornish?
How high is the UV index in December in Cornish?
Average temperature in December
Cornish, UT
- Average high temperature in December: 28.6°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in December
Cornish, UT
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Cornish, UT
- Average wind speed in December: 4.3mph
The windiest months (with the highest average wind speed) are April, June and August (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in December
Cornish, UT
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Cornish, UT
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is January (2.24").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Cornish, UT
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in December
Cornish, UT
- Average snowfall in December: 11.73"
The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Cornish, UT
- Average snowfall days in December: 15.1 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Cornish, UT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Cornish, UT
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in December
Cornish, UT
- 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).
Average cloud cover in December
Cornish, UT
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Cornish, UT
- 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).
Cornish, Utah, USA
Weather forecast for your location
2. Allow the app to use your location
