July weather forecast
Jerome, IL

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Weather in July

July, like June, in Jerome, Illinois, is another warm summer month, with an average temperature fluctuating between 82.8°F (28.2°C) and 66.6°F (19.2°C).

Temperature

The average temperatures reach their apex in July, averaging 82.8°F (28.2°C) at the high end and 66.6°F (19.2°C) at the low end.

Heat index

For July, the heat index is computed to be a hot 91.4°F (33°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

The most humid month is July, with an average relative humidity of 83%.

Rainfall

In July, in Jerome, Illinois, the rain falls for 10.8 days. Throughout July, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Jerome, there are 104.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

In Jerome, snow does not fall in May through October.

Daylight

The average length of the day in July is 14h and 40min.
On the first day of the month, sunrise is at 5:34 am and sunset at 8:30 pm. On the last day of July, sunrise is at 5:57 am and sunset at 8:12 pm CDT.

Sunshine

In July, the average sunshine in Jerome is 10.2h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during July translates into the following guidance:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What month is the hottest in Jerome?

July, having an average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 66.6°F (19.2°C), is the warmest month in Jerome.

How hot is July in Jerome?

The average high-temperature, in July, in Jerome, is 82.8°F (28.2°C), while the average low-temperature is 66.6°F (19.2°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 91.4°F (33°C).

What is the most humid month in Jerome?

The most humid month is July, with an average relative humidity of 83%.

What is the average humidity in July in Jerome?

The average relative humidity in July in Jerome, Illinois, is 83%.

How much does it rain in Jerome in July?

In Jerome, Illinois, in July, it is raining for 10.8 days, with typically 0.91" (23mm) of accumulated precipitation.

When it does not snow in Jerome?

May through October are months without snowfall.

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

In July, the average day length is 14h and 40min.

When is the sunrise / sunset in July in Jerome?

In July, on the first day of the month, sunrise is at 5:34 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:12 pm CDT.

How long on average sun shines in July in Jerome?

The average sunshine duration in July is 10.2h.

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

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

How high is the UV index in July in Jerome?

The average daily maximum UV index in July in Jerome, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Jerome, IL

Average temperature in July - Jerome, IL
  • Average high temperature in July: 82.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

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Average pressure in July
Jerome, IL

Average pressure in July - Jerome, 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 (29.91"Hg).

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Average wind speed in July
Jerome, IL

Average wind speed in July - Jerome, IL
  • Average wind speed in July: 6.1mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average humidity in July
Jerome, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in July
Jerome, IL

Average rainfall in July - Jerome, IL
  • Average rainfall in July: 0.91"

The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.43").

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Average rainfall days in July
Jerome, IL

Average rainfall days in July - Jerome, IL
  • Average rainfall days in July: 10.8 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in July
Jerome, IL

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

The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Jerome, IL

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

The month with the highest number of snowfall days is January (5.7 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
Jerome, IL

Average daylight in July / Average sunshine in July - Jerome, 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 24min).

  • Average sunshine in July: 10h and 1min

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 12min).

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Average sunshine days in July
Jerome, IL

Average sunshine days in July - Jerome, IL
  • Average sunshine days in July: 16 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (14 days).

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Average UV index in July
Jerome, IL

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

The months with the highest UV index are 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
Jerome, IL

Average cloud cover in July - Jerome, IL
  • Average cloud cover in July: 30

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in July
Jerome, IL

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

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