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
Palmyra's January weather, marked by an average high temperature of 34.2°F (1.2°C) and an average low temperature of 22.3°F (-5.4°C), is the coldest in the year.Humidity
The average relative humidity in January is 78%.Rainfall
In Palmyra, in January, it is raining for 7.4 days, with typically 1.85" (47mm) of accumulated precipitation. In Palmyra, Illinois, during the entire year, the rain falls for 151.5 days and collects up to 31.3" (795mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 8.5 days. Throughout January, 2.8" (71mm) of snow is accumulated. Throughout the year, there are 25.5 snowfall days, and 9.09" (231mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 46min.On the first day of January, sunrise is at 7:20 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:18 pm CST.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January in Palmyra?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January in Palmyra?
What is the month with the least sunshine?
How many hours of sunshine does Palmyra have in January?
What are the months with the lowest UV index in Palmyra?
What is the UV index intensity in January?
Average temperature in January
Palmyra, IL
- Average high temperature in January: 34.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in January
Palmyra, IL
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Palmyra, IL
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Palmyra, IL
- Average humidity in January: 78%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Palmyra, IL
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is December (1.73").
Average rainfall days in January
Palmyra, IL
- Average rainfall days in January: 7.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in January
Palmyra, IL
- Average snowfall in January: 2.8"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Palmyra, IL
- Average snowfall days in January: 8.5 days
The month with the highest number of snowfall days is January (8.5 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
Palmyra, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Palmyra, IL
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in January
Palmyra, 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
Palmyra, IL
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in January
Palmyra, 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).
Palmyra, Illinois, USA
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