July weather forecast
Dow, IL

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Weather in July

July, like June, in Dow, Illinois, is another warm summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 67.6°F (19.8°C).

Temperature

Dow's temperatures peak on average in July, reaching 84.7°F (29.3°C) at their highest and 67.6°F (19.8°C) at their lowest.

Heat index

The heat index value during July is appraised at a sweltering 96.8°F (36°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The most humid month is July, with an average relative humidity of 80%.

Rainfall

In July, in Dow, the rain falls for 15.9 days. Throughout July, 2.32" (59mm) of precipitation is accumulated. In Dow, during the entire year, the rain falls for 136.5 days and collects up to 23.11" (587mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Dow, the average length of the day in July is 14h and 35min.
On the first day of the month, sunrise is at 5:39 am and sunset at 8:31 pm. On the last day of July, sunrise is at 6:01 am and sunset at 8:13 pm CDT.

Sunshine

In July, the average sunshine is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What time of the year is the hottest in Dow?

In Dow, July registers the highest temperatures, averaging 84.7°F (29.3°C) at the peak and 67.6°F (19.8°C) at the lowest.

How hot is July in Dow?

In July, in Dow, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 96.8°F (36°C).

What is the most humid month in Dow?

July is the most humid month in Dow, with an average relative humidity of 80%.

What is the average humidity in July in Dow?

The average relative humidity in July in Dow is 80%.

How many days does it rain in July in Dow?

In Dow, during July, the rain falls for 15.9 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Dow?

In Dow, snow does not fall in April through October.

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

In July, the average day length in Dow, Illinois, is 14h and 35min.

What time are sunrise and sunset in July in Dow?

In July, on the first day of the month, sunrise is at 5:39 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:13 pm CDT.

How long on average sun shines in July in Dow?

In Dow, the average sunshine duration in July is 10.3h.

What is the month with the highest UV index in Dow?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Dow.

How high is the UV index in July in Dow?

In Dow, Illinois, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Dow, IL

Average temperature in July - Dow, IL
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in July
Dow, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Dow, IL

Average wind speed in July - Dow, IL
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in July
Dow, IL

Average humidity in July - Dow, IL
  • Average humidity in July: 80%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Dow, IL

Average rainfall in July - Dow, IL
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in July
Dow, IL

Average rainfall days in July - Dow, IL
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in July
Dow, IL

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Dow, IL

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

The month with the highest number of snowfall days is January (6.2 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
Dow, IL

Average daylight in July / Average sunshine in July - Dow, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in July
Dow, IL

Average sunshine days in July - Dow, IL
  • Average sunshine days in July: 13.1 days

The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and June (12.3 days).

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Average UV index in July
Dow, IL

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Dow, IL

Average cloud cover in July - Dow, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).

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Average visibility in July
Dow, IL

Average visibility in July - Dow, 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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Dow, Illinois, USA

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