July weather forecast
Somonauk, IL

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Weather in July

July, the same as June, is another warm summer month in Somonauk, Illinois, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 63.3°F (17.4°C).

Temperature

July brings the highest temperatures, with an average high of 80.6°F (27°C) and an average low of 63.3°F (17.4°C).

Heat index

The average heat index in July is computed to be a hot 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

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

Rainfall

In Somonauk, Illinois, in July, it is raining for 19.3 days, with typically 3.58" (91mm) of accumulated precipitation. In Somonauk, during the entire year, the rain falls for 162.1 days and collects up to 33.54" (852mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July in Somonauk is 14h and 50min.
On the first day of July in Somonauk, Illinois, sunrise is at 5:24 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:13 pm CDT.

Sunshine

The months with the most sunshine are June through August, with an average of 9.6h of sunshine.

UV index

In Somonauk, the average daily maximum UV index in July is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 5 in July leads to these recommendations:
Act with care - The need to guard against sun damage is communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What are the warmest months in Somonauk?

July, on average, is the warmest month, registering a high temperature of 80.6°F (27°C) and a low of 63.3°F (17.4°C).

What is the usual temperature for Somonauk in July?

The average high-temperature, in July, in Somonauk, is 80.6°F (27°C), while the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is computed to be 86°F (30°C).

What is the most humid month in Somonauk?

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

What is the average humidity in July in Somonauk?

The average relative humidity in July in Somonauk, Illinois, is 85%.

How many days does it rain in July in Somonauk?

In July, in Somonauk, the rain falls for 19.3 days. Throughout July, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Somonauk?

May through September are months without snowfall in Somonauk, Illinois.

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

In July, the average day length in Somonauk, Illinois, is 14h and 50min.

What time are sunrise and sunset in July in Somonauk?

On the first day of July in Somonauk, Illinois, sunrise is at 5:24 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:13 pm CDT.

What are the months with the most sunshine in Somonauk?

June through August, with an average of 9.6h of sunshine, are months with the most sunshine.

How many hours of sunshine does Somonauk have in July?

The average sunshine duration in July in Somonauk is 9.6h.

What is the UV index intensity in July in Somonauk?

In July, the average daily maximum UV index in Somonauk, Illinois, is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Somonauk, IL

Average temperature in July - Somonauk, IL
  • Average high temperature in July: 80.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in July: 63.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in July
Somonauk, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Somonauk, IL

Average wind speed in July - Somonauk, IL
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in July
Somonauk, IL

Average humidity in July - Somonauk, 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 (74%).

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Average rainfall in July
Somonauk, IL

Average rainfall in July - Somonauk, IL
  • Average rainfall in July: 3.58"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in July
Somonauk, IL

Average rainfall days in July - Somonauk, IL
  • Average rainfall days in July: 19.3 days

The months with the highest number of rainy days are June and July (19.3 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in July
Somonauk, IL

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

The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Somonauk, IL

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

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Somonauk, IL
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 9h and 4min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in July
Somonauk, IL

Average sunshine days in July - Somonauk, IL
  • Average sunshine days in July: 8.2 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (8.2 days).

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Average UV index in July
Somonauk, IL

Average UV index in July - Somonauk, IL
  • Average UV index in July: 5

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in July
Somonauk, IL

Average cloud cover in July - Somonauk, IL
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in July
Somonauk, IL

Average visibility in July - Somonauk, IL
  • Average visibility in July: 5mi

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

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Somonauk, Illinois, USA

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