August weather forecast
Fletcher, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Fletcher, Illinois, with an average temperature ranging between min 63.1°F (17.3°C) and max 79.9°F (26.6°C).

Temperature

In August, Fletcher notes an average high-temperature of a still moderately hot 79.9°F (26.6°C), hardly different from the preceding month. Fletcher's temperature lowers to a mean of 63.1°F (17.3°C) during the nights in August.

Humidity

In August, the average relative humidity is 83%.

Rainfall

In August, the rain falls for 15.9 days. Throughout August, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 163.1 rainfall days, and 33.62" (854mm) of precipitation is accumulated.

Snowfall

In Fletcher, snow does not fall in May through September.

Daylight

In Fletcher, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

The months with the highest UV index are June 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 unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

The average high-temperature and low-temperature during August are 79.9°F (26.6°C) and 63.1°F (17.3°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity in Fletcher is 83%.

How much does it rain in August?

In Fletcher, in August, it is raining for 15.9 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow?

In Fletcher, snow does not fall in May through September.

How many hours of daylight does Fletcher have in August?

The average day length in August is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of the month, in Fletcher, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

How many hours of sunshine does Fletcher have in August?

In Fletcher, the average sunshine duration in August is 9.6h.

What is the month with the highest UV index?

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 Fletcher, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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 August
Fletcher, IL

Average temperature in August - Fletcher, IL
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Fletcher, IL

Average pressure in August - Fletcher, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Fletcher, IL

Average wind speed in August - Fletcher, IL
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in August
Fletcher, IL

Average humidity in August - Fletcher, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Fletcher, IL

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

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").

Average rainfall days in August
Fletcher, IL

Average rainfall days in August - Fletcher, IL
  • Average rainfall days in August: 15.9 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in August
Fletcher, IL

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

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Fletcher, IL

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

The month with the highest number of snowfall days is January (12.8 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
Fletcher, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Fletcher, IL

Average sunshine days in August - Fletcher, IL
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in August
Fletcher, IL

Average UV index in August - Fletcher, 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, October, November and December (UV index 2).

Average cloud cover in August
Fletcher, IL

Average cloud cover in August - Fletcher, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in August
Fletcher, IL

Average visibility in August - Fletcher, IL
  • Average visibility in August: 5mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Fletcher, Illinois, USA

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