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
In Speer, the month of January registers the lowest temperatures, averaging 29.7°F (-1.3°C) at the peak and 17.8°F (-7.9°C) at the lowest.Humidity
In Speer, the average relative humidity in January is 82%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.2 days and typically collects 0.59" (15mm) of precipitation.Snowfall
Months with snowfall in Speer are January through April, October through December. The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 1.81" (46mm) of snow.Daylight
The average length of the day in January in Speer is 9h and 38min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:40 pm. On the last day of January, in Speer, Illinois, sunrise is at 7:10 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.9h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Speer. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the coldest time of year in Speer?
How cold is it in Speer in January?
What is the average humidity in January in Speer?
What is the driest month in Speer?
How much does it rain in Speer in January?
What is the snowiest month in Speer?
How many days does it snow in January in Speer?
What is the average length of the day in January in Speer?
When is the sunrise / sunset in January in Speer?
What is the month with the least sunshine in Speer?
How long on average sun shines in January in Speer?
What are the months with the lowest UV index in Speer?
How high is the UV index in January in Speer?
Average temperature in January
Speer, IL
- Average high temperature in January: 29.7°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 (29.7°F).
- Average low temperature in January: 17.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in January
Speer, 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 (29.91"Hg).
Average wind speed in January
Speer, IL
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Speer, 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 (72%).
Average rainfall in January
Speer, IL
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in January
Speer, IL
- Average rainfall days in January: 4.2 days
The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).
Average snowfall in January
Speer, IL
- Average snowfall in January: 1.81"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Speer, IL
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is January (8.6 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
Speer, 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: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Speer, IL
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in January
Speer, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Speer, IL
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in January
Speer, 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).
Speer, Illinois, USA
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