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, characterized by an average high temperature of 26.8°F (-2.9°C) and a low temperature of 16.2°F (-8.8°C), is generally the coldest month.Humidity
The most humid month is January, with an average relative humidity of 88%.Rainfall
In January, the rain falls for 6.9 days. Throughout January, 1.65" (42mm) of precipitation is accumulated. In Saint Louis, during the entire year, the rain falls for 141.3 days and collects up to 22.48" (571mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall in Saint Louis. Snow falls for 18 days and accumulates 5.91" (150mm) of snow.Daylight
In January, the average length of the day in Saint Louis, Michigan, is 9h and 24min.On the first day of January in Saint Louis, sunrise is at 8:10 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:48 pm EST.
Sunshine
With an average of 2.7h of sunshine, January has the least sunshine of the year in Saint Louis.UV index
The months with the lowest UV index in Saint Louis are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 1 in January translates into these instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What are the coldest months in Saint Louis?
How cold is January in Saint Louis?
What is the most humid month in Saint Louis?
What is the average humidity in January in Saint Louis?
How much does it rain in Saint Louis in January?
What is the snowiest month in Saint Louis?
How many days does it snow in January in Saint Louis?
What is the average length of the day in January in Saint Louis?
What time are sunrise and sunset in January in Saint Louis?
What is the month with the least sunshine in Saint Louis?
How many hours of sunshine does Saint Louis have in January?
When is the lowest UV index in Saint Louis?
What is the UV index reading in January in Saint Louis?
Average temperature in January
Saint Louis, MI
- Average high temperature in January: 26.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in January: 16.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in January
Saint Louis, MI
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Saint Louis, MI
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Saint Louis, MI
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Saint Louis, MI
- Average rainfall in January: 1.65"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in January
Saint Louis, MI
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in January
Saint Louis, MI
- Average snowfall in January: 5.91"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Saint Louis, MI
- Average snowfall days in January: 18 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saint Louis, MI
- 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: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in January
Saint Louis, MI
- Average sunshine days in January: 10.3 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in January
Saint Louis, MI
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Saint Louis, MI
- Average cloud cover in January: 71
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Saint Louis, MI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
Saint Louis, Michigan, USA
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