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
With the arrival of January, Winchester's average high-temperature registers at a still cold 34.9°F (1.6°C), indicating a subtle variation from the previous month. Winchester experiences an average nighttime temperature of 22.5°F (-5.3°C) in the month of January.Humidity
January is the most humid month in Winchester, with an average relative humidity of 90%.Rainfall
In Winchester, in January, it is raining for 6 days, with typically 2.6" (66mm) of accumulated precipitation. In Winchester, during the entire year, the rain falls for 133.5 days and collects up to 28.9" (734mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Winchester. In January, it is snowing for 19.2 days. Throughout January, 19.53" (496mm) of snow is accumulated. In Winchester, during the entire year, snow falls for 112.2 days and aggregates up to 105.79" (2687mm) of snow.Daylight
The average length of the day in January is 9h and 7min.On the first day of the month, sunrise is at 7:29 am and sunset at 4:10 pm. On the last day of January, sunrise is at 7:10 am and sunset at 4:49 pm PST.
Sunshine
In Winchester, the average sunshine in January is 4.3h.UV index
In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 2 in January transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Winchester in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Winchester have in January?
When are sunrise and sunset in January?
How long on average sun shines in January in Winchester?
How high is the UV index in January?
Average temperature in January
Winchester, ID
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in January
Winchester, ID
- Average pressure in January: 30.21"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in January
Winchester, ID
- Average wind speed in January: 4.8mph
The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in January
Winchester, ID
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).
Average rainfall in January
Winchester, ID
- Average rainfall in January: 2.6"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in January
Winchester, ID
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).
Average snowfall in January
Winchester, ID
- Average snowfall in January: 19.53"
The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Winchester, ID
- Average snowfall days in January: 19.2 days
The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Winchester, ID
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in January
Winchester, ID
- Average sunshine days in January: 11.6 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in January
Winchester, 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 and December (UV index 1).
Average cloud cover in January
Winchester, ID
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Winchester, ID
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Winchester, Idaho, USA
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