January weather forecastPost Falls, ID
January
Weather in January
January ushers in the coldest temperatures in Post Falls, Idaho, with the lowest average low of 21.6°F (-5.8°C). This month is known for its constant snowfall, clear nights showing off brilliant constellations, and shimmering icy landscapes under the crisp winter sun. Transitioning from December, January experiences a slight decrease in sunlight hours but maintains a relatively high humidity. Venturing outdoors might require layers of clothing to stay warm. As January progresses, residents longingly watch the gradually lengthening days in anticipation of spring's approach.Temperature
Post Falls marks the start of January with an average high-temperature of a wintry 32.7°F (0.4°C), hinting at a slight fluctuation from December's 31.3°F (-0.4°C). Post Falls's average low-temperature in January is measured at a freezing cold 21.6°F (-5.8°C).Humidity
With an average relative humidity of 93%, January is the most humid month.Rainfall
The month with the most rainfall is January, when the rain falls for 11.5 days and typically aggregates up to 3.27" (83mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 16.4 days and accumulates 16.57" (421mm) of snow.Daylight
In Post Falls, the average length of the day in January is 8h and 56min.On the first day of the month, sunrise is at 7:36 am and sunset at 4:06 pm. On the last day of January, sunrise is at 7:15 am and sunset at 4:46 pm PST.
Sunshine
The average sunshine in January is 3.5h.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. 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
Post Falls, ID
- Average high temperature in January: 32.7°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in January
Post Falls, 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
Post Falls, ID
- Average wind speed in January: 4mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).
Average humidity in January
Post Falls, ID
- Average humidity in January: 93%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).
Average rainfall in January
Post Falls, ID
- Average rainfall in January: 3.27"
The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in January
Post Falls, ID
- Average rainfall days in January: 11.5 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in January
Post Falls, ID
- Average snowfall in January: 16.57"
The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Post Falls, ID
- Average snowfall days in January: 16.4 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Post Falls, ID
- Average daylight in January: 8h and 54min
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 30min
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
Post Falls, ID
- Average sunshine days in January: 11 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in January
Post Falls, ID
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in January
Post Falls, ID
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Post Falls, 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).
