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 onset brings an average high-temperature of a still icy 36.1°F (2.3°C), showing a minute difference from December's 34.9°F (1.6°C). The average low-temperature, in January, in Letha, is a freezing cold 23.5°F (-4.7°C).Humidity
The most humid month in Letha is January, with an average relative humidity of 82%.Rainfall
In Letha, Idaho, in January, it is raining for 8.6 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, in Letha, there are 91.7 rainfall days, and 10.28" (261mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Letha. In Letha, in January, during 5.5 snowfall days, 3.43" (87mm) of snow is typically accumulated. Throughout the year, in Letha, Idaho, there are 22.2 snowfall days, and 12.95" (329mm) of snow is accumulated.Daylight
In Letha, the average length of the day in January is 9h and 22min.On the first day of January in Letha, Idaho, sunrise is at 8:20 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:55 pm MST.
Sunshine
In Letha, Idaho, the average sunshine in January is 5.4h.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 low threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during January translates into the following guidance:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is it in Letha in January?
What is the most humid month in Letha?
What is the average humidity in January in Letha?
How many days does it rain in January in Letha?
How many days does it snow in January in Letha?
What is the average length of the day in January in Letha?
What time are sunrise and sunset in January in Letha?
How long on average sun shines in January in Letha?
What are the months with the lowest UV index in Letha?
What is the UV index intensity in January in Letha?
Average temperature in January
Letha, ID
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in January: 23.5°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in January
Letha, 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
Letha, ID
- Average wind speed in January: 4.2mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in January
Letha, ID
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in January
Letha, ID
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in January
Letha, ID
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in January
Letha, ID
- Average snowfall in January: 3.43"
The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Letha, ID
- Average snowfall days in January: 5.5 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 and September (0 days).
Average daylight in January /
Average sunshine in January
Letha, 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 2min
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 18min).
Average sunshine days in January
Letha, ID
- Average sunshine days in January: 18.8 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in January
Letha, 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
Letha, ID
- Average cloud cover in January: 42
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Letha, ID
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Letha, Idaho, USA
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