July weather forecastClaytonville, IL

July

Weather in July

July, like June, in Claytonville, Illinois, is another warm summer month, with an average temperature varying between 64.4°F (18°C) and 81°F (27.2°C).

Temperature

In Claytonville, July is identified by the highest average temperatures, reaching a peak of 81°F (27.2°C) and a low of 64.4°F (18°C).

Heat index

July's average heat index is estimated at a hot 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

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

Rainfall

In Claytonville, in July, it is raining for 16.4 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 143.2 rainfall days, and 22.24" (565mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July in Claytonville, Illinois, is 14h and 44min.
On the first day of the month, sunrise is at 5:24 am and sunset at 8:25 pm. On the last day of July, sunrise is at 5:48 am and sunset at 8:07 pm CDT.

Sunshine

In July, the average sunshine is 9.8h.

UV index

The months with the highest UV index in Claytonville are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The warmest time of the year in Claytonville is July, with temperatures averaging a high of 81°F (27.2°C) and a low of 64.4°F (18°C).

The average high-temperature, in July, in Claytonville, is 81°F (27.2°C), while the average low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 87.8°F (31°C).

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

The average relative humidity in July in Claytonville is 85%.

In Claytonville, Illinois, in July, during 16.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

May through September are months without snowfall in Claytonville.

The average day length in July in Claytonville is 14h and 44min.

In July, on the first day of the month, sunrise is at 5:24 am and sunset at 8:25 pm. On the last day of the month, in Claytonville, sunrise is at 5:48 am and sunset at 8:07 pm CDT.

The average sunshine duration in July in Claytonville is 9.8h.

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

The average daily maximum UV index in July in Claytonville, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Claytonville, IL

  • Average high temperature in July: 81°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in July: 64.4°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in July
Claytonville, IL

  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Claytonville, IL

  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in July
Claytonville, 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
Claytonville, IL

  • Average rainfall in July: 2.24"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in July
Claytonville, IL

  • Average rainfall days in July: 16.4 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.4 days).

Average snowfall in July
Claytonville, IL

  • Average snowfall in July: 0"

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 July
Claytonville, IL

  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.4 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
Claytonville, 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 48min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in July
Claytonville, IL

  • Average sunshine days in July: 10.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in July
Claytonville, 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
Claytonville, IL

  • Average cloud cover in July: 34

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in July
Claytonville, 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).