August weather forecast
Bristol, IL

Share

Weather in August

August, the last month of the summer in Bristol, is another warm month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79.3°F (26.3°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still warm 79.3°F (26.3°C), not significantly different from the 81.1°F (27.3°C) of July. In August, the nighttime temperature in Bristol lowers to an average of 62.4°F (16.9°C).

Humidity

The months with the highest humidity are January, February, July and August, with an average relative humidity of 83%.

Rainfall

In Bristol, in August, it is raining for 15 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 133.1 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:11 pm. On the last day of August, in Bristol, sunrise is at 6:19 am and sunset at 7:28 pm CDT.

Sunshine

In Bristol, the average sunshine in August is 9.7h.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 5 in August translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
[Resources]

Frequently asked questions

What is the average August temperature in Bristol?

August temperatures vary between a high-temperature of 79.3°F (26.3°C) and a low-temperature of 62.4°F (16.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 87.8°F (31°C).

What is the most humid month in Bristol?

January, February, July and August, with an average relative humidity of 83%, are most humid months in Bristol.

What is the average humidity in August in Bristol?

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

How many days does it rain in August in Bristol?

In Bristol, in August, it is raining for 15 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Bristol?

In Bristol, Illinois, snow does not fall in May through September.

What is the average length of the day in August in Bristol?

In Bristol, Illinois, the average day length in August is 13h and 48min.

When is the sunrise / sunset in August in Bristol?

In August, on the first day of the month, sunrise is at 5:48 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:28 pm CDT.

How many hours of sunshine does Bristol have in August?

In Bristol, Illinois, the average sunshine duration in August is 9.7h.

What is the UV index intensity in August in Bristol?

The average daily maximum UV index in August in Bristol, Illinois, is 5. A UV Index reading of 3 to 5 represents a moderate 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 August
Bristol, IL

Average temperature in August - Bristol, IL
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

[Resources]

Average pressure in August
Bristol, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in August
Bristol, IL

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

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

[Resources]

Average humidity in August
Bristol, IL

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

The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in August
Bristol, IL

Average rainfall in August - Bristol, IL
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").

[Resources]

Average rainfall days in August
Bristol, IL

Average rainfall days in August - Bristol, IL
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).

[Resources]

Average snowfall in August
Bristol, IL

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

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
Bristol, IL

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

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 9h and 4min

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

[Resources]

Average sunshine days in August
Bristol, IL

Average sunshine days in August - Bristol, IL
  • Average sunshine days in August: 11.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).

[Resources]

Average UV index in August
Bristol, IL

Average UV index in August - Bristol, IL
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

[Resources]

Average cloud cover in August
Bristol, IL

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

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).

[Resources]

Average visibility in August
Bristol, IL

Average visibility in August - Bristol, 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).

[Resources]

Bristol, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location