Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
During the coldest month, January, temperatures average a high of 33.4°F (0.8°C) and a low of 21.2°F (-6°C).Humidity
January is the most humid month, with an average relative humidity of 83%.Rainfall
In January, the rain falls for 10.1 days. Throughout January, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 137.7 rainfall days, and 20.98" (533mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Grantsville, Utah, during January, snow falls for 11.9 days and regularly aggregates up to 9.21" (234mm) of snow. Throughout the year, there are 53.4 snowfall days, and 40.28" (1023mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 40min.On the first day of the month, sunrise is at 7:53 am and sunset at 5:13 pm. On the last day of January, in Grantsville, sunrise is at 7:40 am and sunset at 5:45 pm MST.
Sunshine
The month with the least sunshine is January, with an average of 5.1h of sunshine.UV index
In Grantsville, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in January 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 Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January in Grantsville?
What is the average length of the day in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Grantsville have in January?
How high is the UV index in January?
Average temperature in January
Grantsville, UT
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.2°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in January
Grantsville, UT
- Average pressure in January: 30.27"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 January
Grantsville, UT
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in January
Grantsville, UT
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (36%).
Average rainfall in January
Grantsville, UT
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in January
Grantsville, UT
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in January
Grantsville, UT
- Average snowfall in January: 9.21"
The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grantsville, UT
- Average snowfall days in January: 11.9 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grantsville, UT
- Average daylight in January: 9h and 4min
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 18min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in January
Grantsville, UT
- Average sunshine days in January: 14.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in January
Grantsville, UT
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Grantsville, UT
- Average cloud cover in January: 45
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Grantsville, UT
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Grantsville, Utah, USA
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