August weather forecast
Crossville, IL

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Weather in August

August, the last month of the summer in Crossville, is another warm month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 65.8°F (18.8°C).

Temperature

Transitioning into August, Crossville experiences an average high-temperature of a still warm 84°F (28.9°C), marking a minor shift from the preceding month. Nighttime temperature lowers to an average of 65.8°F (18.8°C) in August.

Heat index

August's mean heat index is computed to be a hot 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to 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 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 hold particular significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, the rain falls for 15.5 days. Throughout August, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 167.7 rainfall days, and 38.23" (971mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 36min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:01 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:22 pm CDT.

Sunshine

In August, 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the UV index of 6 transforms into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

Crossville in August has an average high-temperature of 84°F (28.9°C) and an average low-temperature of 65.8°F (18.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 93.2°F (34°C).

What is the average humidity in August?

The average relative humidity in August is 78%.

How many days does it rain in August in Crossville?

In Crossville, in August, during 15.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow?

In Crossville, Illinois, snow does not fall in May through October.

How many hours of daylight does Crossville have in August?

The average day length in August is 13h and 36min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:55 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:22 pm CDT.

How many hours of sunshine does Crossville have in August?

The average sunshine duration in August is 10.3h.

What is the month with the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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 August
Crossville, IL

Average temperature in August - Crossville, IL
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in August
Crossville, IL

Average pressure in August - Crossville, IL
  • Average pressure in August: 29.99"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).

Average wind speed in August
Crossville, IL

Average wind speed in August - Crossville, IL
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in August
Crossville, IL

Average humidity in August - Crossville, IL
  • Average humidity in August: 78%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in August
Crossville, IL

Average rainfall in August - Crossville, IL
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Crossville, IL

Average rainfall days in August - Crossville, IL
  • Average rainfall days in August: 15.5 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in August
Crossville, IL

Average snowfall in August - Crossville, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Crossville, IL

Average snowfall days in August - Crossville, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Crossville, IL

Average daylight in August / Average sunshine in August - Crossville, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in August
Crossville, IL

Average sunshine days in August - Crossville, IL
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in August
Crossville, IL

Average UV index in August - Crossville, IL
  • Average UV index in August: 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).

Average cloud cover in August
Crossville, IL

Average cloud cover in August - Crossville, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in August
Crossville, IL

Average visibility in August - Crossville, IL
  • Average visibility in August: 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).

Crossville, Illinois, USA

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