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
An average high-temperature of a still wintry 33.6°F (0.9°C) marks January, exhibiting a close resemblance to the conditions in December. During January, Harrison observes a consistent average nighttime temperature of 22.5°F (-5.3°C).Humidity
With an average relative humidity of 92%, January is the most humid month.Rainfall
January is the month with the most rainfall in Harrison. Rain falls for 12.3 days and accumulates 3.39" (86mm) of precipitation.Snowfall
Months with snowfall in Harrison are January through May, September through December. The month with the most snowfall is January, when snow falls for 15.6 days and typically aggregates up to 15.2" (386mm) of snow.Daylight
The average length of the day in January is 8h and 58min.On the first day of January in Harrison, sunrise is at 7:34 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:46 pm PST.
Sunshine
The average sunshine in January is 3.6h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 1 in January translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat. 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
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the wettest month?
How many days does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Harrison, ID
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in January
Harrison, ID
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in January
Harrison, ID
- Average wind speed in January: 4.4mph
The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).
Average humidity in January
Harrison, ID
- Average humidity in January: 92%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (47%).
Average rainfall in January
Harrison, ID
- Average rainfall in January: 3.39"
The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in January
Harrison, ID
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in January
Harrison, ID
- Average snowfall in January: 15.2"
The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Harrison, ID
- Average snowfall days in January: 15.6 days
The month with the highest number of snowfall days is December (16.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Harrison, ID
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in January
Harrison, ID
- Average sunshine days in January: 10.6 days
The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in January
Harrison, 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, November and December (UV index 1).
Average cloud cover in January
Harrison, ID
- Average cloud cover in January: 63
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Harrison, ID
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Harrison, Idaho, USA
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