July weather forecastColfax, IL

July

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).

Temperature

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).

Heat index

In July, the average heat index is appraised at a hot 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

With an average relative humidity of 85%, July is the most humid month.

Rainfall

In Colfax, during July, the rain falls for 15.1 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 129.6 rainfall days, and 16.73" (425mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 44min.
On the first day of the month, sunrise is at 5:27 am and sunset at 8:29 pm. On the last day of July, sunrise is at 5:51 am and sunset at 8:10 pm CDT.

Sunshine

The average sunshine in July is 9.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during July translates into the following guidance:
Fend off overexposure. Sun protection is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

July, on average, is the warmest month, registering a high temperature of 80.8°F (27.1°C) and a low of 64.6°F (18.1°C).

An average high-temperature, in July, in Colfax, is 80.8°F (27.1°C) and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 86°F (30°C).

July is the most humid month, with an average relative humidity of 85%.

In Colfax, the average relative humidity in July is 85%.

In Colfax, in July, during 15.1 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

In Colfax, snow does not fall in May through October.

In July, the average day length is 14h and 44min.

On the first day of July, sunrise is at 5:27 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:10 pm CDT.

The average sunshine duration in July is 9.7h.

The months with the highest UV index are June through August, with an average maximum UV index of 6.

In July, the average daily maximum UV index in Colfax is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Colfax, IL

  • Average high temperature in July: 80.8°F

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).

  • Average low temperature in July: 64.6°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 in July
Colfax, IL

  • Average pressure in July: 29.97"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 in July
Colfax, IL

  • Average wind speed in July: 6.6mph

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 in July
Colfax, IL

  • Average humidity in July: 85%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Colfax, IL

  • Average rainfall in July: 1.85"

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 in July
Colfax, IL

  • Average rainfall days in July: 15.1 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 in July
Colfax, IL

  • Average snowfall in July: 0"

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 in July
Colfax, IL

  • Average snowfall days in July: 0 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 in July /
Average sunshine in July
Colfax, IL

  • Average daylight in July: 14h and 42min

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 July: 9h and 42min

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 in July
Colfax, IL

  • Average sunshine days in July: 11.5 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 in July
Colfax, IL

  • Average UV index in July: 6

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 July
Colfax, IL

  • Average cloud cover in July: 34

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 in July
Colfax, IL

  • Average visibility in July: 5mi

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).