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 37.4°F (3°C) and a low of 23.4°F (-4.8°C), is recognized as the coldest.Humidity
The average relative humidity in January in Foristell is 76%.Rainfall
January is the month with the least rainfall in Foristell. Rain falls for 6.9 days and accumulates 1.46" (37mm) of precipitation.Snowfall
Months with snowfall in Foristell are January through March, November and December. The month with the most snowfall in Foristell is January, when snow falls for 6.2 days and typically aggregates up to 2.87" (73mm) of snow.Daylight
The average length of the day in January is 9h and 49min.On the first day of January, sunrise is at 7:22 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:23 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.6h of sunshine.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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What time of the year is the coldest in Foristell?
How cold is January in Foristell?
What is the average humidity in January in Foristell?
What is the driest month in Foristell?
How many days does it rain in January in Foristell?
When does it snow the most in Foristell?
How many days does it snow in January in Foristell?
How many hours of daylight does Foristell have in January?
What time are sunrise and sunset in January in Foristell?
What is the month with the least sunshine in Foristell?
How long on average sun shines in January in Foristell?
When is the lowest UV index in Foristell?
What is the UV index reading in January in Foristell?
Average temperature in January
Foristell, MO
- Average high temperature in January: 37.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Foristell, 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 (29.92"Hg).
Average wind speed in January
Foristell, MO
- Average wind speed in January: 8.8mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Foristell, MO
- Average humidity in January: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Foristell, MO
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in January
Foristell, MO
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in January
Foristell, MO
- Average snowfall in January: 2.87"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Foristell, MO
- Average snowfall days in January: 6.2 days
The month with the highest number of snowfall days is February (6.3 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
Foristell, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Foristell, MO
- Average sunshine days in January: 19.5 days
The months with the most sunshine days are January, October and December (19.5 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in January
Foristell, 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
Foristell, MO
- Average cloud cover in January: 50
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in January
Foristell, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Foristell, Missouri, USA
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