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
Saint Joseph's coldest temperatures are experienced in January, with average high temperatures of 31.8°F (-0.1°C) and lows of 20.5°F (-6.4°C).Humidity
In Saint Joseph, Illinois, the average relative humidity in January is 80%.Rainfall
In Saint Joseph, in January, during 6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Saint Joseph, during the entire year, the rain falls for 129.9 days and collects up to 18.15" (461mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. January is the month with the most snowfall in Saint Joseph. Snow falls for 8.7 days and accumulates 1.85" (47mm) of snow.Daylight
In Saint Joseph, the average length of the day in January is 9h and 43min.On the first day of the month, sunrise is at 7:14 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:01 am and sunset at 5:09 pm CST.
Sunshine
The month with the least sunshine in Saint Joseph, Illinois, is January, with an average of 4h 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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in January transforms into this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Saint Joseph?
How cold is it in Saint Joseph in January?
What is the average humidity in January in Saint Joseph?
How much does it rain in Saint Joseph in January?
What is the snowiest month in Saint Joseph?
How much does it snow in Saint Joseph in January?
How many hours of daylight does Saint Joseph have in January?
When are sunrise and sunset in January in Saint Joseph?
What is the month with the least sunshine in Saint Joseph?
How many hours of sunshine does Saint Joseph have in January?
What is the month with the lowest UV index in Saint Joseph?
What is the UV index intensity in January in Saint Joseph?
Average temperature in January
Saint Joseph, IL
- Average high temperature in January: 31.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in January: 20.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in January
Saint Joseph, IL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Saint Joseph, IL
- Average wind speed in January: 10.8mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in January
Saint Joseph, IL
- Average humidity in January: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Saint Joseph, IL
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in January
Saint Joseph, IL
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (6 days).
Average snowfall in January
Saint Joseph, IL
- Average snowfall in January: 1.85"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Saint Joseph, IL
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 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
Saint Joseph, IL
- 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Saint Joseph, IL
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in January
Saint Joseph, IL
- 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
Saint Joseph, IL
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in January
Saint Joseph, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Saint Joseph, Illinois, USA
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