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
The coldest period tends to be January, when average temperatures fluctuate between a high of 31.3°F (-0.4°C) and a low of 19.2°F (-7.1°C).Humidity
The average relative humidity in January in Hamilton, Illinois, is 80%.Rainfall
The month with the least rainfall in Hamilton is January, when the rain falls for 4.9 days and typically collects 0.83" (21mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Hamilton. January is the month with the most snowfall. Snow falls for 7.9 days and accumulates 2.91" (74mm) of snow.Daylight
In Hamilton, the average length of the day in January is 9h and 41min.On the first day of the month, sunrise is at 7:28 am and sunset at 4:49 pm. On the last day of January, in Hamilton, sunrise is at 7:15 am and sunset at 5:21 pm CST.
Sunshine
January has the least sunshine of the year in Hamilton, with an average of 4.3h of sunshine.UV index
The months with the lowest UV index in Hamilton are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In January, a daily UV index of 2 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Hamilton?
How cold is January in Hamilton?
What is the average humidity in January in Hamilton?
What is the driest month in Hamilton?
How many days does it rain in January in Hamilton?
What is the snowiest month in Hamilton?
How much does it snow in Hamilton in January?
What is the average length of the day in January in Hamilton?
What time are sunrise and sunset in January in Hamilton?
What is the month with the least sunshine in Hamilton?
How long on average sun shines in January in Hamilton?
When is the lowest UV index in Hamilton?
What is the UV index intensity in January in Hamilton?
Average temperature in January
Hamilton, IL
- Average high temperature in January: 31.3°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 (31.3°F).
- Average low temperature in January: 19.2°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in January
Hamilton, 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 (29.9"Hg).
Average wind speed in January
Hamilton, IL
- Average wind speed in January: 10.4mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
Hamilton, IL
- Average humidity in January: 80%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Hamilton, IL
- Average rainfall in January: 0.83"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in January
Hamilton, IL
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in January
Hamilton, IL
- Average snowfall in January: 2.91"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Hamilton, IL
- Average snowfall days in January: 7.9 days
The month with the highest number of snowfall days is January (7.9 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
Hamilton, 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 18min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Hamilton, IL
- Average sunshine days in January: 19.6 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in January
Hamilton, 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
Hamilton, IL
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Hamilton, 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).
Hamilton, Illinois, USA
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