July weather forecast
Silvis, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Silvis, Illinois, with an average temperature varying between 64.8°F (18.2°C) and 81.7°F (27.6°C).

Temperature

July temperatures tend to peak at an average high of 81.7°F (27.6°C) and dip to a low of 64.8°F (18.2°C).

Heat index

July's mean heat index is evaluated at a tropical 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 hold great significance to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

January and July, with an average relative humidity of 83%, are the most humid months.

Rainfall

In July, in Silvis, the rain falls for 11.2 days. Throughout July, 1.18" (30mm) of precipitation is accumulated. In Silvis, Illinois, during the entire year, the rain falls for 99.4 days and collects up to 9.57" (243mm) of precipitation.

Snowfall

In Silvis, snow does not fall in May through August.

Daylight

The average length of the day in July in Silvis is 14h and 50min.
On the first day of the month, sunrise is at 5:31 am and sunset at 8:39 pm. On the last day of July, in Silvis, sunrise is at 5:56 am and sunset at 8:19 pm CDT.

Sunshine

With an average of 10.1h of sunshine, July has the most sunshine of the year in Silvis, Illinois.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in July transforms into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What part of the year is the hottest in Silvis?

Silvis, Illinois, witnesses the warmest weather in July, with temperatures averaging a high of 81.7°F (27.6°C) and a low of 64.8°F (18.2°C).

What is the average July temperature in Silvis?

The average high-temperature and low-temperature in Silvis, Illinois, during July are 81.7°F (27.6°C) and 64.8°F (18.2°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in July is evaluated at 89.6°F (32°C).

What are the most humid months in Silvis?

The months with the highest humidity in Silvis are January and July, with an average relative humidity of 83%.

What is the average humidity in July in Silvis?

In July, the average relative humidity in Silvis is 83%.

How many days does it rain in July in Silvis?

In July, in Silvis, Illinois, the rain falls for 11.2 days. Throughout July, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in Silvis?

In Silvis, Illinois, snow does not fall in May through August.

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

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

What time are sunrise and sunset in July in Silvis?

On the first day of July in Silvis, sunrise is at 5:31 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:19 pm CDT.

What month has the most sunshine in Silvis?

The month with the most sunshine in Silvis, Illinois, is July, with an average of 10.1h of sunshine.

How many hours of sunshine does Silvis have in July?

In Silvis, the average sunshine duration in July is 10.1h.

When is the highest UV index in Silvis?

July is the month with the highest UV index in Silvis, with an average maximum UV index of 6.

What is the UV index intensity in July in Silvis?

In Silvis, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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
Silvis, IL

Average temperature in July - Silvis, IL
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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Average pressure in July
Silvis, IL

Average pressure in July - Silvis, IL
  • Average pressure in July: 29.96"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
Silvis, IL

Average wind speed in July - Silvis, IL
  • Average wind speed in July: 6.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity in July
Silvis, IL

Average humidity in July - Silvis, IL
  • Average humidity in July: 83%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Silvis, IL

Average rainfall in July - Silvis, IL
  • Average rainfall in July: 1.18"

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").

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Average rainfall days in July
Silvis, IL

Average rainfall days in July - Silvis, IL
  • Average rainfall days in July: 11.2 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).

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Average snowfall in July
Silvis, IL

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in July
Silvis, IL

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

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in July / Average sunshine in July - Silvis, 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: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in July
Silvis, IL

Average sunshine days in July - Silvis, IL
  • Average sunshine days in July: 16.2 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).

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Average UV index in July
Silvis, IL

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

The month with the highest UV index is 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
Silvis, IL

Average cloud cover in July - Silvis, IL
  • Average cloud cover in July: 31

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

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Average visibility in July
Silvis, IL

Average visibility in July - Silvis, IL
  • Average visibility in July: 6mi

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

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Silvis, Illinois, USA

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