July weather forecast
Olmsted, IL

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Weather in July

July, like June, is another hot summer month in Olmsted, Illinois, with an average temperature ranging between max 88.2°F (31.2°C) and min 69.8°F (21°C).

Temperature

July, on average, is the warmest month, registering a high temperature of 88.2°F (31.2°C) and a low of 69.8°F (21°C).

Heat index

The heat index value during July is computed to be a scorching 104°F (40°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Olmsted, the average relative humidity in July is 76%.

Rainfall

In July, in Olmsted, Illinois, the rain falls for 15.7 days. Throughout July, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Olmsted, the average length of the day in July is 14h and 25min.
On the first day of July, sunrise is at 5:40 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:04 pm CDT.

Sunshine

The average sunshine in July is 10.5h.

UV index

The months with the highest UV index in Olmsted, Illinois, are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 in July translates into these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the warmest month in Olmsted?

The warmest temperatures in Olmsted occur during July, when averages reach a peak of 88.2°F (31.2°C) and a low of 69.8°F (21°C).

How hot is it in Olmsted in July?

In July, the average high-temperature and low-temperature in Olmsted are 88.2°F (31.2°C) and 69.8°F (21°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 104°F (40°C).

What is the average humidity in July in Olmsted?

The average relative humidity in July is 76%.

How many days does it rain in July in Olmsted?

In Olmsted, during July, the rain falls for 15.7 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Olmsted?

May through September are months without snowfall in Olmsted.

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

In Olmsted, the average day length in July is 14h and 25min.

What time are sunrise and sunset in July in Olmsted?

On the first day of July in Olmsted, sunrise is at 5:40 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:04 pm CDT.

How long on average sun shines in July in Olmsted?

The average sunshine duration in July is 10.5h.

What are the months with the highest UV index in Olmsted?

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

How high is the UV index in July in Olmsted?

The average daily maximum UV index in July in Olmsted, Illinois, is 6. A UV Index reading of 6 to 7 represents 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
Olmsted, IL

Average temperature in July - Olmsted, IL
  • Average high temperature in July: 88.2°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in July: 69.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in July
Olmsted, IL

Average pressure in July - Olmsted, IL
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in July
Olmsted, IL

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

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in July
Olmsted, IL

Average humidity in July - Olmsted, IL
  • Average humidity in July: 76%

The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in July
Olmsted, IL

Average rainfall in July - Olmsted, IL
  • Average rainfall in July: 2.83"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in July
Olmsted, IL

Average rainfall days in July - Olmsted, IL
  • Average rainfall days in July: 15.7 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in July
Olmsted, IL

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

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Olmsted, IL

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

The month with the highest number of snowfall days is February (3.8 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
Olmsted, IL

Average daylight in July / Average sunshine in July - Olmsted, IL
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in July
Olmsted, IL

Average sunshine days in July - Olmsted, IL
  • Average sunshine days in July: 13.5 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in July
Olmsted, IL

Average UV index in July - Olmsted, 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 and December (UV index 2).

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Average cloud cover in July
Olmsted, IL

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in July
Olmsted, IL

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

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