January weather forecastHerriman, UT
January
Weather in January
The year starts off in Herriman, Utah, with a genuinely winter feel. Temperatures tend to be on the lower side, with an average high of 33.4°F (0.8°C) and a low of 19°F (-7.2°C). January is the month with the highest average snowfall in the region, registering a significant 3.46" (88mm). January's grey skies cast a wintry atmosphere over the city, and the chill in the air sets the tone for many indoor festivities.Temperature
Temperature records mark January as the coldest month, with highs averaging 33.4°F (0.8°C) and lows at 19°F (-7.2°C).Humidity
January is the most humid month in Herriman, with an average relative humidity of 84%.Rainfall
In Herriman, Utah, during January, the rain falls for 5.7 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Herriman, during the entire year, the rain falls for 86.1 days and collects up to 6.61" (168mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Herriman, in January, during 9.9 snowfall days, 3.46" (88mm) of snow is typically accumulated. In Herriman, during the entire year, snow falls for 42.7 days and aggregates up to 16.61" (422mm) of snow.Daylight
The average length of the day in January is 9h and 40min.On the first day of January, sunrise is at 7:51 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:44 pm MST.
Sunshine
With an average of 5.5h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Herriman. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 in January translates into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Herriman, UT
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 19°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in January
Herriman, 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
Herriman, UT
- Average wind speed in January: 5.1mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in January
Herriman, UT
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (35%).
Average rainfall in January
Herriman, UT
- Average rainfall in January: 0.59"
The wettest months (with the highest rainfall) are March and April (0.71").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in January
Herriman, UT
- Average rainfall days in January: 5.7 days
The months with the highest number of rainy days are March and April (9.8 days).
The month with the least rainy days is November (5.2 days).
Average snowfall in January
Herriman, UT
- Average snowfall in January: 3.46"
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 January
Herriman, UT
- Average snowfall days in January: 9.9 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Herriman, UT
- Average daylight in January: 9h and 42min
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 30min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in January
Herriman, UT
- Average sunshine days in January: 19.1 days
The month with the most sunshine days is June (23.1 days).
The months with the least sunshine days are February and April (16.3 days).
Average UV index in January
Herriman, UT
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Herriman, UT
- Average cloud cover in January: 40
The months with the most cloud cover are January and February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in January
Herriman, UT
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (4mi).





