July weather forecast
Sheffield, IL

Weather in July

July, like June, in Sheffield, Illinois, is a moderately hot summer month, with an average temperature varying between 64.6°F (18.1°C) and 81°F (27.2°C).

Temperature

The warmest month is July, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.6°F (18.1°C).

Heat index

The average heat index in July is estimated at a tropical 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, clothing, metabolic differences), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

With an average relative humidity of 84%, July is the most humid month.

Rainfall

In Sheffield, Illinois, it is raining for 17.1 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Sheffield, Illinois, there are 147.2 rainfall days, and 29.17" (741mm) of precipitation is accumulated.

Snowfall

In Sheffield, snow does not fall in May through September.

Daylight

In July, the average length of the day in Sheffield is 14h and 49min.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:36 pm. On the last day of July, in Sheffield, sunrise is at 5:53 am and sunset at 8:17 pm CDT.

Sunshine

June and July, with an average of 10h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Sheffield are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Sheffield?

With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.6°F (18.1°C), July is the warmest month in Sheffield, Illinois.

What is the temperature in July in Sheffield?

In July, in Sheffield, Illinois, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 87.8°F (31°C).

What is the most humid month in Sheffield?

The most humid month in Sheffield, Illinois, is July, with an average relative humidity of 84%.

What is the average humidity in July in Sheffield?

In July, the average relative humidity in Sheffield, Illinois, is 84%.

How much does it rain in Sheffield in July?

In Sheffield, during July, the rain falls for 17.1 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Sheffield?

May through September are months without snowfall in Sheffield.

What is the average length of the day in July in Sheffield?

The average day length in July in Sheffield is 14h and 49min.

What time are sunrise and sunset in July in Sheffield?

On the first day of July in Sheffield, Illinois, sunrise is at 5:29 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:17 pm CDT.

What are the months with the most sunshine in Sheffield?

The months with the most sunshine in Sheffield are June and July, with an average of 10h of sunshine.

How many hours of sunshine does Sheffield have in July?

In July, the average sunshine duration in Sheffield is 10h.

When is the highest UV index in Sheffield?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Sheffield, Illinois.

How high is the UV index in July in Sheffield?

In July, the average daily maximum UV index in Sheffield is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
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
Sheffield, IL

Average temperature in July - Sheffield, 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 (28.8°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 (16.7°F).

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Average pressure in July
Sheffield, IL

Average pressure in July - Sheffield, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Sheffield, IL

Average wind speed in July - Sheffield, IL
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in July
Sheffield, IL

Average humidity in July - Sheffield, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Sheffield, IL

Average rainfall in July - Sheffield, IL
  • Average rainfall in July: 2.87"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").

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Average rainfall days in July
Sheffield, IL

Average rainfall days in July - Sheffield, IL
  • Average rainfall days in July: 17.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall in July
Sheffield, IL

Average snowfall in July - Sheffield, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Sheffield, IL

Average snowfall days in July - Sheffield, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Sheffield, IL

Average daylight in July / Average sunshine in July - Sheffield, IL
  • Average daylight in July: 14h and 49min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

  • Average sunshine in July: 10h and 0min

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).

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Average sunshine days in July
Sheffield, IL

Average sunshine days in July - Sheffield, IL
  • Average sunshine days in July: 10.6 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).

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Average UV index in July
Sheffield, IL

Average UV index in July - Sheffield, IL
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in July
Sheffield, IL

Average cloud cover in July - Sheffield, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in July
Sheffield, IL

Average visibility in July - Sheffield, 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).

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