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
The month of January, characterized by an average high of 32.5°F (0.3°C) and a low of 18.5°F (-7.5°C), is recognized as the coldest.Humidity
In Fairfax, Missouri, the average relative humidity in January is 78%.Rainfall
In January, the rain falls for 3.9 days. Throughout January, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 120.8 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Fairfax. The month with the most snowfall is January, when snow falls for 6.7 days and typically aggregates up to 3.03" (77mm) of snow.Daylight
In Fairfax, the average length of the day in January is 9h and 41min.On the first day of January, sunrise is at 7:44 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:38 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.8h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in Fairfax in January?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Fairfax have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Fairfax, MO
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in January: 18.5°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in January
Fairfax, MO
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Fairfax, MO
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Fairfax, MO
- Average humidity in January: 78%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Fairfax, MO
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in January
Fairfax, MO
- Average rainfall days in January: 3.9 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Fairfax, MO
- Average snowfall in January: 3.03"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Fairfax, MO
- Average snowfall days in January: 6.7 days
The months with the highest number of snowfall days are January and February (6.7 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
Fairfax, MO
- 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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Fairfax, MO
- Average sunshine days in January: 21 days
The months with the most sunshine days are November and December (21.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in January
Fairfax, MO
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Fairfax, MO
- Average cloud cover in January: 47
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Fairfax, MO
- 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).
Fairfax, Missouri, USA
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