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 shift from November to December involves a decrease in the average high-temperature, from a frosty 47.7°F (8.7°C) to an icy 34.7°F (1.5°C). In Callao, in December, the average low-temperature is a freezing cold 22.8°F (-5.1°C).Humidity
In Callao, the average relative humidity in December is 74%.Rainfall
In Callao, in December, during 8.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Callao, Utah, there are 108.8 rainfall days, and 9.88" (251mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 10.2 days. Throughout December, 4.33" (110mm) of snow is accumulated. In Callao, Utah, during the entire year, snow falls for 38.9 days and aggregates up to 17.52" (445mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 5:10 pm. On the last day of December, in Callao, sunrise is at 7:56 am and sunset at 5:20 pm MST.
Sunshine
In December, the average sunshine in Callao, Utah, is 6.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is December in Callao?
What is the average humidity in December in Callao?
How many days does it rain in December in Callao?
How many days does it snow in December in Callao?
What is the month with the shortest days in Callao?
How many hours of daylight does Callao have in December?
When is the sunrise / sunset in December in Callao?
How many hours of sunshine does Callao have in December?
When is the lowest UV index in Callao?
How high is the UV index in December in Callao?
Average temperature in December
Callao, UT
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Callao, 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 (29.87"Hg).
Average wind speed in December
Callao, UT
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in December
Callao, UT
- Average humidity in December: 74%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (26%).
Average rainfall in December
Callao, UT
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is April (1.18").
The driest month (with the least rainfall) is June (0.51").
Average rainfall days in December
Callao, UT
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is April (11.9 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in December
Callao, UT
- Average snowfall in December: 4.33"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Callao, UT
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Callao, UT
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 6h and 2min
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: 6h and 6min).
Average sunshine days in December
Callao, UT
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Callao, 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
Callao, UT
- Average cloud cover in December: 33
The months with the most cloud cover are January, February and December (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Callao, 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).
Callao, Utah, USA
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