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 coldest period is December, when temperatures fluctuate between an average high of 36.5°F (2.5°C) and a low of 20.8°F (-6.2°C).Humidity
In Newcastle, the average relative humidity in December is 73%.Rainfall
In Newcastle, during December, the rain falls for 5.6 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Newcastle, there are 84.2 rainfall days, and 9.21" (234mm) of precipitation is accumulated.Snowfall
Months with snowfall in Newcastle are January through May, October through December. The month with the most snowfall in Newcastle is December, when snow falls for 8.1 days and typically aggregates up to 4.25" (108mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 5:15 pm. On the last day of December, in Newcastle, sunrise is at 7:49 am and sunset at 5:25 pm MST.
Sunshine
The average sunshine in December is 6.5h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Newcastle. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What are the coldest months in Newcastle?
How cold is it in Newcastle in December?
What is the average humidity in December in Newcastle?
How much does it rain in Newcastle in December?
What is the snowiest month in Newcastle?
How much does it snow in Newcastle in December?
What is the month with the shortest days in Newcastle?
What is the average length of the day in December in Newcastle?
When is the sunrise / sunset in December in Newcastle?
How many hours of sunshine does Newcastle have in December?
What is the month with the lowest UV index in Newcastle?
How high is the UV index in December in Newcastle?
Average temperature in December
Newcastle, UT
- Average high temperature in December: 36.5°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 (36.5°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).
Average pressure in December
Newcastle, UT
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Newcastle, UT
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is June (8.5mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).
Average humidity in December
Newcastle, UT
- Average humidity in December: 73%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is June (26%).
Average rainfall in December
Newcastle, UT
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in December
Newcastle, UT
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is November (3.2 days).
Average snowfall in December
Newcastle, UT
- Average snowfall in December: 4.25"
The month with the highest snowfall is December (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Newcastle, UT
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Newcastle, UT
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Newcastle, UT
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is June (24 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in December
Newcastle, UT
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Newcastle, UT
- Average cloud cover in December: 31
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 8).
Average visibility in December
Newcastle, UT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Newcastle, Utah, USA
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