August weather forecast
Holcomb, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Holcomb, Illinois, with an average temperature fluctuating between 61.2°F (16.2°C) and 78.3°F (25.7°C).

Temperature

Holcomb's transition from July to August introduces an average high-temperature of a still moderately hot 78.3°F (25.7°C), marking an insignificant variation from the 79.9°F (26.6°C). Holcomb experiences an average temperature drop to an enjoyable 61.2°F (16.2°C) during August nights.

Humidity

In Holcomb, the average relative humidity in August is 84%.

Rainfall

In August, the rain falls for 12.4 days. Throughout August, 1.26" (32mm) of precipitation is accumulated. In Holcomb, Illinois, during the entire year, the rain falls for 124.5 days and collects up to 14.49" (368mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day in Holcomb is 13h and 50min.
On the first day of August, sunrise is at 5:50 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:31 pm CDT.

Sunshine

In Holcomb, the average sunshine in August is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the UV index of 5 transforms into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

In Holcomb, in August, the average high-temperature is 78.3°F (25.7°C), and the average low-temperature is 61.2°F (16.2°C).

What is the average humidity in August?

The average relative humidity in August is 84%.

How many days does it rain in August?

In August, the rain falls for 12.4 days. Throughout August, 1.26" (32mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 50min.

When are sunrise and sunset in August?

On the first day of August in Holcomb, sunrise is at 5:50 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Holcomb have in August?

In Holcomb, Illinois, the average sunshine duration in August is 9.4h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index reading in August?

In Holcomb, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health risk from 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
Holcomb, IL

Average temperature in August - Holcomb, IL
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

Average pressure in August
Holcomb, IL

Average pressure in August - Holcomb, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Holcomb, IL

Average wind speed in August - Holcomb, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Holcomb, IL

Average humidity in August - Holcomb, IL
  • Average humidity in August: 84%

The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Holcomb, IL

Average rainfall in August - Holcomb, IL
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in August
Holcomb, IL

Average rainfall days in August - Holcomb, IL
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in August
Holcomb, IL

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

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Holcomb, IL

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

The month with the highest number of snowfall days is January (10.3 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
Holcomb, IL

Average daylight in August / Average sunshine in August - Holcomb, 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 2min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in August
Holcomb, IL

Average sunshine days in August - Holcomb, IL
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in August
Holcomb, IL

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Holcomb, IL

Average cloud cover in August - Holcomb, IL
  • Average cloud cover in August: 35

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in August
Holcomb, IL

Average visibility in August - Holcomb, 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).

Holcomb, Illinois, USA

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