August weather forecast
Jerome, IL

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Weather in August

August, the last month of the summer in Jerome, is another warm month, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.9°F (27.7°C).

Temperature

The advent of August brings an average high-temperature of a still warm 81.9°F (27.7°C), almost identical to the preceding month. During the month of August, Jerome's nighttime temperature lowers to an average of 64.8°F (18.2°C).

Heat index

For most parts of August, the heat index is computed to be a tropical 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Jerome, the average relative humidity in August is 81%.

Rainfall

In Jerome, in August, during 10.5 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, there are 104.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Jerome, Illinois.

Daylight

In August, the average length of the day is 13h and 41min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:31 pm CDT.

Sunshine

The average sunshine in August in Jerome is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the average August temperature in Jerome?

The average high-temperature, in August, in Jerome, is 81.9°F (27.7°C), while the average low-temperature is 64.8°F (18.2°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 87.8°F (31°C).

What is the average humidity in August in Jerome?

In August, the average relative humidity in Jerome is 81%.

How much does it rain in Jerome in August?

In Jerome, in August, it is raining for 10.5 days, with typically 0.83" (21mm) of accumulated precipitation.

When it does not snow in Jerome?

May through October are months without snowfall in Jerome, Illinois.

How many hours of daylight does Jerome have in August?

In Jerome, Illinois, the average day length in August is 13h and 41min.

When is the sunrise / sunset in August in Jerome?

In August, on the first day of the month, sunrise is at 5:58 am and sunset at 8:11 pm. On the last day of the month, in Jerome, sunrise is at 6:26 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Jerome have in August?

In Jerome, Illinois, the average sunshine duration in August is 9.9h.

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

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

What is the UV index reading in August in Jerome?

In August, the average daily maximum UV index in Jerome is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to 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 August
Jerome, IL

Average temperature in August - Jerome, IL
  • Average high temperature in August: 81.9°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 August: 64.8°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 August
Jerome, IL

Average pressure in August - Jerome, IL
  • Average pressure in August: 29.98"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 August
Jerome, IL

Average wind speed in August - Jerome, IL
  • Average wind speed in August: 6.2mph

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 August
Jerome, IL

Average humidity in August - Jerome, IL
  • Average humidity in August: 81%

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 August
Jerome, IL

Average rainfall in August - Jerome, IL
  • Average rainfall in August: 0.83"

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 August
Jerome, IL

Average rainfall days in August - Jerome, IL
  • Average rainfall days in August: 10.5 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 August
Jerome, IL

Average snowfall in August - Jerome, IL
  • Average snowfall in August: 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 August
Jerome, IL

Average snowfall days in August - Jerome, IL
  • Average snowfall days in August: 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 August /
Average sunshine in August
Jerome, IL

Average daylight in August / Average sunshine in August - Jerome, IL
  • Average daylight in August: 13h 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 August: 9h and 5min

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 August
Jerome, IL

Average sunshine days in August - Jerome, IL
  • Average sunshine days in August: 16.2 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 August
Jerome, IL

Average UV index in August - Jerome, IL
  • Average UV index in August: 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 August
Jerome, IL

Average cloud cover in August - Jerome, IL
  • Average cloud cover in August: 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 August
Jerome, IL

Average visibility in August - Jerome, IL
  • Average visibility in August: 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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