Climate and monthly weather forecastColfax, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Colfax, Illinois, with an average temperature fluctuating between 18.7°F (-7.4°C) and 30.6°F (-0.8°C). Colfax experiences its lowest temperatures in January, with an average peak of 30.6°F (-0.8°C) and a low of 18.7°F (-7.4°C). Weather in January »Weather in February
February, the last month of the winter in Colfax, is a wintry month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 35.2°F (1.8°C). The onset of February notes an average high-temperature of a cold 35.2°F (1.8°C), subtly shifted from January's 30.6°F (-0.8°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Colfax, Illinois, with an average temperature fluctuating between 48°F (8.9°C) and 33.4°F (0.8°C). The arrival of March sees a shift in the average high-temperature, moving from a cold 35.2°F (1.8°C) in February to a frosty 48°F (8.9°C). Weather in March »Weather in April
April is a moderate spring month in Colfax, Illinois, with an average temperature fluctuating between 43.9°F (6.6°C) and 59.9°F (15.5°C). The shift into April is marked by a rise in the average high-temperature, moving from March's frosty 48°F (8.9°C) to a refreshing 59.9°F (15.5°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Colfax, Illinois, with an average temperature fluctuating between 55.2°F (12.9°C) and 71.6°F (22°C). The arrival of May sees a shift in the average high-temperature, moving from a moderate 59.9°F (15.5°C) in April to an agreeable 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Colfax, Illinois, with an average temperature ranging between max 79.3°F (26.3°C) and min 62.4°F (16.9°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a pleasant 71.6°F (22°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Colfax, Illinois, is another warm summer month, with an average temperature varying between 80.8°F (27.1°C) and 64.6°F (18.1°C). In Colfax, July is the month with the highest recorded average temperatures, measuring a high of 80.8°F (27.1°C) and a low of 64.6°F (18.1°C). In July, the average heat index is appraised at a hot 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Colfax, is also a moderately hot month, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 80.1°F (26.7°C). Colfax measures an average high-temperature of a still moderately hot 80.1°F (26.7°C) in August, nearly consistent with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Colfax, Illinois, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57.2°F (14°C). Colfax greets September with an average high-temperature of a still moderately hot 75.7°F (24.3°C), marking a slight deviation from the preceding month. Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Colfax, Illinois, with an average temperature ranging between min 46.8°F (8.2°C) and max 62.1°F (16.7°C). Observing a mild shift, the average high-temperature during October reduces from September's moderately hot 75.7°F (24.3°C) to a refreshing 62.1°F (16.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Colfax, Illinois, with an average temperature fluctuating between 34.7°F (1.5°C) and 47.7°F (8.7°C). As Colfax transitions into November, the average high-temperature shows a marked reduction, decreasing from a refreshing 62.1°F (16.7°C) in October to a chilly 47.7°F (8.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Colfax, Illinois, with an average temperature varying between 36.5°F (2.5°C) and 26.1°F (-3.3°C). The beginning of December marks a decrease in the average high-temperature, transitioning from a frosty 47.7°F (8.7°C) in November to an icy 36.5°F (2.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Colfax, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure
Colfax, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"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
Colfax, IL
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Colfax, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Colfax, IL
- Average rainfall in January:
0.79" - Average rainfall in February:
0.83" - Average rainfall in March:
1.3" - Average rainfall in April:
1.85" - Average rainfall in May:
2.44" - Average rainfall in June:
2.09"
- Average rainfall in July:
1.85" - Average rainfall in August:
1.38" - Average rainfall in September:
1.14" - Average rainfall in October:
1.26" - Average rainfall in November:
0.98" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days
Colfax, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
17 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Colfax, IL
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Colfax, IL
- Average snowfall days in January:
9.9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
3.4 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Colfax, IL
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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:
3h and 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Colfax, IL
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.6 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
15 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (11 days).
Average UV index
Colfax, IL
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
Colfax, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility
Colfax, IL
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).





