January weather forecastMesa, ID
January
Weather in January
January, the same as December, in Mesa, Idaho, is another subzero cold winter month, with an average temperature ranging between max 29.5°F (-1.4°C) and min 14.7°F (-9.6°C).Temperature
Mesa's January reports an average high-temperature of a still freezing cold 29.5°F (-1.4°C), exhibiting a minor difference from December. In January, Mesa experiences an average nighttime temperature of 14.7°F (-9.6°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 91%.Rainfall
In January, the rain falls for 4.1 days. Throughout January, 2.83" (72mm) of precipitation is accumulated. In Mesa, during the entire year, the rain falls for 98.1 days and collects up to 22.64" (575mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. The month with the most snowfall is January, when snow falls for 16.2 days and typically aggregates up to 23.07" (586mm) of snow.Daylight
In January, the average length of the day is 9h and 17min.On the first day of the month, sunrise is at 8:22 am and sunset at 5:15 pm. On the last day of January, sunrise is at 8:05 am and sunset at 5:52 pm MST.
Sunshine
January has the least sunshine of the year, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are January, February and November, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 1 in January translates into these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mesa, ID
- Average high temperature in January: 29.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (28°F).
- Average low temperature in January: 14.7°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in January
Mesa, ID
- Average pressure in January: 30.24"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Mesa, ID
- Average wind speed in January: 4.2mph
The windiest months (with the highest average wind speed) are March and April (5.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in January
Mesa, ID
- Average humidity in January: 91%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (42%).
Average rainfall in January
Mesa, ID
- Average rainfall in January: 2.83"
The wettest month (with the highest rainfall) is March (3.31").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Mesa, ID
- Average rainfall days in January: 4.1 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in January
Mesa, ID
- Average snowfall in January: 23.07"
The month with the highest snowfall is January (23.07").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Mesa, ID
- Average snowfall days in January: 16.2 days
The month with the highest number of snowfall days is March (17 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Mesa, ID
- Average daylight in January: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 4h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Mesa, ID
- Average sunshine days in January: 14.9 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is March (10.1 days).
Average UV index in January
Mesa, ID
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in January
Mesa, ID
- Average cloud cover in January: 54
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in January
Mesa, ID
- Average visibility in January: 3mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





