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, with an average high of 29.7°F (-1.3°C) and a low of 17.6°F (-8°C), signifies the coldest month of the year.Humidity
In January, the average relative humidity in Monmouth is 82%.Rainfall
January is the month with the least rainfall. Rain falls for 5.9 days and accumulates 1.46" (37mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 10.9 days and typically aggregates up to 4.61" (117mm) of snow.Daylight
The average length of the day in January in Monmouth, Illinois, is 9h and 38min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:44 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:17 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.1h of sunshine.UV index
January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: During January, 1 as the daily maximum UV index converts into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What month is the coldest in Monmouth?
How cold is it in Monmouth in January?
What is the average humidity in January in Monmouth?
What is the driest month in Monmouth?
How many days does it rain in January in Monmouth?
When does it snow the most in Monmouth?
How much does it snow in Monmouth in January?
How many hours of daylight does Monmouth have in January?
When is the sunrise / sunset in January in Monmouth?
What is the month with the least sunshine in Monmouth?
How long on average sun shines in January in Monmouth?
What is the month with the lowest UV index in Monmouth?
What is the UV index reading in January in Monmouth?
Average temperature in January
Monmouth, IL
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 17.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in January
Monmouth, 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 (29.9"Hg).
Average wind speed in January
Monmouth, IL
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in January
Monmouth, IL
- Average humidity in January: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Monmouth, IL
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in January
Monmouth, IL
- Average rainfall days in January: 5.9 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Monmouth, IL
- Average snowfall in January: 4.61"
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Monmouth, IL
- Average snowfall days in January: 10.9 days
The month with the highest number of snowfall days is January (10.9 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
Monmouth, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Monmouth, IL
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in January
Monmouth, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Monmouth, 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 30).
Average visibility in January
Monmouth, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Monmouth, Illinois, USA
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