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
Salem's January weather reaches an average high of 37°F (2.8°C) and an average low of 24.3°F (-4.3°C), making it the coldest month.Humidity
The average relative humidity in January is 77%.Rainfall
In Salem, during January, the rain falls for 6.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, in Salem, there are 123.2 rainfall days, and 15.08" (383mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 5.1 days and typically aggregates up to 0.63" (16mm) of snow.Daylight
The average length of the day in January in Salem is 9h and 50min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:44 pm. On the last day of January, in Salem, sunrise is at 7:02 am and sunset at 5:15 pm CST.
Sunshine
January has the least sunshine of the year in Salem, with an average of 4.4h 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 of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the coldest time of year in Salem?
How cold is January in Salem?
What is the average humidity in January in Salem?
How many days does it rain in January in Salem?
What is the snowiest month in Salem?
How much does it snow in Salem in January?
How many hours of daylight does Salem have in January?
When are sunrise and sunset in January in Salem?
What is the month with the least sunshine in Salem?
How many hours of sunshine does Salem have in January?
What is the month with the lowest UV index in Salem?
What is the UV index reading in January in Salem?
Average temperature in January
Salem, IL
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Salem, IL
- 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 (29.93"Hg).
Average wind speed in January
Salem, IL
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in January
Salem, IL
- Average humidity in January: 77%
The months with the highest relative humidity are May, July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Salem, IL
- Average rainfall in January: 0.98"
The wettest month (with the highest rainfall) is April (2.01").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in January
Salem, IL
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Salem, IL
- Average snowfall in January: 0.63"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Salem, IL
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is January (5.1 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
Salem, IL
- 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 2min
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 24min).
Average sunshine days in January
Salem, IL
- Average sunshine days in January: 19.9 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in January
Salem, IL
- Average UV index in January: 2
The months with the highest UV index are May, 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
Salem, IL
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in January
Salem, IL
- 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).
Salem, Illinois, USA
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