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
Mount Jefferson's coldest month, January, registers temperatures that range from a high of 32°F (0°C) to a low of 20.3°F (-6.5°C).Humidity
With an average relative humidity of 84%, January is the most humid month.Rainfall
In January, the rain falls for 7.2 days. Throughout January, 1.26" (32mm) of precipitation is accumulated. Throughout the year, in Mount Jefferson, there are 147.8 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The months with the most snowfall are January and February, with an average 1.81" (46mm) of accumulated snow.Daylight
In January, the average length of the day is 9h and 41min.On the first day of the month, sunrise is at 7:59 am and sunset at 5:21 pm. On the last day of January, sunrise is at 7:47 am and sunset at 5:54 pm EST.
Sunshine
With an average of 3.6h of sunshine, January has the least sunshine of the year.UV index
In Mount Jefferson, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
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?
When does it snow the most?
How much does it snow in Mount Jefferson in January?
What is the average length of the day in January in Mount Jefferson?
When is the sunrise / sunset in January in Mount Jefferson?
What is the month with the least sunshine in Mount Jefferson?
How long on average sun shines in January in Mount Jefferson?
What is the UV index reading in January?
Average temperature in January
Mount Jefferson, OH
- Average high temperature in January: 32°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in January: 20.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in January
Mount Jefferson, OH
- Average pressure in January: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Mount Jefferson, OH
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Mount Jefferson, OH
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Mount Jefferson, OH
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in January
Mount Jefferson, OH
- Average rainfall days in January: 7.2 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in January
Mount Jefferson, OH
- Average snowfall in January: 1.81"
The months with the highest snowfall are January and February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Mount Jefferson, OH
- Average snowfall days in January: 9.2 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mount Jefferson, OH
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
Mount Jefferson, OH
- Average sunshine days in January: 15.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in January
Mount Jefferson, OH
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Mount Jefferson, OH
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Mount Jefferson, OH
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Mount Jefferson, Ohio, USA
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