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
January's advent notes a subtle adjustment in average high-temperature to a still wintry 36.5°F (2.5°C) from December. Greenleaf experiences an average nighttime temperature of 25°F (-3.9°C) in the month of January.Humidity
The most humid month is January, with an average relative humidity of 79%.Rainfall
In Greenleaf, during January, the rain falls for 11.1 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Greenleaf, during the entire year, the rain falls for 105.6 days and collects up to 9.65" (245mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Greenleaf, in January, during 5.3 snowfall days, 2.4" (61mm) of snow is typically accumulated. Throughout the year, there are 20.8 snowfall days, and 9.02" (229mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 23min.On the first day of January, sunrise is at 8:20 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:56 pm MST.
Sunshine
In Greenleaf, the average sunshine in January is 5.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Greenleaf have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Greenleaf have in January?
What are the months with the lowest UV index in Greenleaf?
How high is the UV index in January?
Average temperature in January
Greenleaf, ID
- Average high temperature in January: 36.5°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in January: 25°F
The months with the highest average low temperature are July and August (62.8°F).
The coldest month (with the lowest average low temperature) is December (24.4°F).
Average pressure in January
Greenleaf, ID
- Average pressure in January: 30.24"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in January
Greenleaf, ID
- Average wind speed in January: 4.9mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in January
Greenleaf, ID
- Average humidity in January: 79%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (29%).
Average rainfall in January
Greenleaf, ID
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in January
Greenleaf, ID
- Average rainfall days in January: 11.1 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in January
Greenleaf, ID
- Average snowfall in January: 2.4"
The month with the highest snowfall is December (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Greenleaf, ID
- Average snowfall days in January: 5.3 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Greenleaf, ID
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in January
Greenleaf, ID
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is July (25.1 days).
The month with the least sunshine days is March (13.6 days).
Average UV index in January
Greenleaf, ID
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Greenleaf, ID
- Average cloud cover in January: 40
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Greenleaf, ID
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Greenleaf, Idaho, USA
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