August weather forecast
Pecatonica, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Pecatonica, Illinois, with an average temperature fluctuating between 78.1°F (25.6°C) and 60.6°F (15.9°C).

Temperature

Pecatonica marks the start of August with an average high-temperature of a still warm 78.1°F (25.6°C), hinting at a slight fluctuation from July's 79.9°F (26.6°C). The temperature in Pecatonica lowers to an average of 60.6°F (15.9°C) during August nights.

Humidity

In August, the average relative humidity is 84%.

Rainfall

In Pecatonica, in August, during 10.3 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Pecatonica, during the entire year, the rain falls for 100.6 days and collects up to 7.99" (203mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of August, sunrise is at 5:50 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 in August translates into these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Pecatonica in August?

The high-temperature during August is 78.1°F (25.6°C) and the low-temperature is 60.6°F (15.9°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Pecatonica, in August, it is raining for 10.3 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Pecatonica have in August?

In August, the average day length is 13h and 50min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Pecatonica have in August?

In August, the average sunshine duration is 9.7h.

How high is the UV index in August?

In Pecatonica, Illinois, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Pecatonica, IL

Average temperature in August - Pecatonica, IL
  • Average high temperature in August: 78.1°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 (26.2°F).

  • Average low temperature in August: 60.6°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°F).

Average pressure in August
Pecatonica, IL

Average pressure in August - Pecatonica, 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
Pecatonica, IL

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

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Pecatonica, IL

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

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in August
Pecatonica, IL

Average rainfall in August - Pecatonica, IL
  • Average rainfall in August: 0.59"

The wettest month (with the highest rainfall) is May (1.18").
The driest months (with the least rainfall) are January and February (0.35").

Average rainfall days in August
Pecatonica, IL

Average rainfall days in August - Pecatonica, IL
  • Average rainfall days in August: 10.3 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in August
Pecatonica, IL

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

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Pecatonica, IL

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

The month with the highest number of snowfall days is January (8.1 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
Pecatonica, IL

Average daylight in August / Average sunshine in August - Pecatonica, 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 6min).

  • 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 42min).

Average sunshine days in August
Pecatonica, IL

Average sunshine days in August - Pecatonica, IL
  • Average sunshine days in August: 18 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in August
Pecatonica, IL

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

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

Average cloud cover in August
Pecatonica, IL

Average cloud cover in August - Pecatonica, IL
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in August
Pecatonica, IL

Average visibility in August - Pecatonica, 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).

Pecatonica, Illinois, USA

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