August weather forecast
Chester, IA

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Weather in August

August, the last month of the summer in Chester, is also a moderately hot month, with an average temperature ranging between max 76.5°F (24.7°C) and min 59°F (15°C).

Temperature

Chester's August average high-temperature settles at a still warm 76.5°F (24.7°C), showing a near match with the preceding month. Chester, in the month of August, anticipates a consistent average low-temperature of 59°F (15°C).

Humidity

The average relative humidity in August is 82%.

Rainfall

In August, the rain falls for 14.7 days. Throughout August, 2.48" (63mm) of precipitation is accumulated. Throughout the year, in Chester, there are 136.6 rainfall days, and 25.79" (655mm) of precipitation is accumulated.

Snowfall

In Chester, Iowa, snow does not fall in June through September.

Daylight

In Chester, Iowa, the average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:31 pm. On the last day of August, in Chester, Iowa, sunrise is at 6:33 am and sunset at 7:45 pm CDT.

Sunshine

The average sunshine in August in Chester is 9.6h.

UV index

In August, the average daily maximum UV index in Chester is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 5 in August transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct Sun exposure should be minimized especially during midday when radiation is most intense. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Chester?

Chester in August has an average high-temperature of 76.5°F (24.7°C) and an average low-temperature of 59°F (15°C).

What is the average humidity in August in Chester?

In August, the average relative humidity is 82%.

How many days does it rain in August in Chester?

In Chester, in August, during 14.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in Chester?

June through September are months without snowfall in Chester, Iowa.

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

The average day length in August is 13h and 55min.

When are sunrise and sunset in August in Chester?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:45 pm CDT.

How long on average sun shines in August in Chester?

The average sunshine duration in August in Chester is 9.6h.

How high is the UV index in August in Chester?

In Chester, Iowa, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to 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
Chester, IA

Average temperature in August - Chester, IA
  • Average high temperature in August: 76.5°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure in August
Chester, IA

Average pressure in August - Chester, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Chester, IA

Average wind speed in August - Chester, IA
  • Average wind speed in August: 7.3mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

Average humidity in August
Chester, IA

Average humidity in August - Chester, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Chester, IA

Average rainfall in August - Chester, IA
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (4.53").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in August
Chester, IA

Average rainfall days in August - Chester, IA
  • Average rainfall days in August: 14.7 days

The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is February (3.6 days).

Average snowfall in August
Chester, IA

Average snowfall in August - Chester, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.91").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Chester, IA

Average snowfall days in August - Chester, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Chester, IA

Average daylight in August / Average sunshine in August - Chester, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in August
Chester, IA

Average sunshine days in August - Chester, IA
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in August
Chester, IA

Average UV index in August - Chester, IA
  • 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, February, November and December (UV index 1).

Average cloud cover in August
Chester, IA

Average cloud cover in August - Chester, IA
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Chester, IA

Average visibility in August - Chester, IA
  • Average visibility in August: 6mi

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

Chester, Iowa, USA

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