August weather forecast
Oelwein, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Oelwein, Iowa, with an average temperature ranging between min 60.4°F (15.8°C) and max 77.7°F (25.4°C).

Temperature

August's advent presents an average high-temperature of a still warm 77.7°F (25.4°C), indicating a slight variation from the conditions of the previous month. During August, the average low-temperature is recorded at a mild 60.4°F (15.8°C).

Humidity

The average relative humidity in August is 82%.

Rainfall

In Oelwein, in August, during 13.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Oelwein, Iowa, there are 135.7 rainfall days, and 29.65" (753mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Oelwein is 13h and 52min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:27 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:43 pm CDT.

Sunshine

July and August, with an average of 9.8h of sunshine, are months with the most sunshine.

UV index

In Oelwein, 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 average person.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What are August temperatures in Oelwein?

The high-temperature, in August, in Oelwein, is 77.7°F (25.4°C), while the low-temperature averages to 60.4°F (15.8°C).

What is the average humidity in August in Oelwein?

In Oelwein, Iowa, the average relative humidity in August is 82%.

How many days does it rain in August in Oelwein?

In Oelwein, in August, during 13.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Oelwein?

June through September are months without snowfall in Oelwein.

How many hours of daylight does Oelwein have in August?

The average day length in August in Oelwein, Iowa, is 13h and 52min.

When are sunrise and sunset in August in Oelwein?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:43 pm CDT.

What are the months with the most sunshine in Oelwein?

July and August, with an average of 9.8h of sunshine, are months with the most sunshine in Oelwein, Iowa.

How many hours of sunshine does Oelwein have in August?

The average sunshine duration in August in Oelwein, Iowa, is 9.8h.

What is the UV index reading in August in Oelwein?

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium 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
Oelwein, IA

Average temperature in August - Oelwein, IA
  • Average high temperature in August: 77.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.7°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in August
Oelwein, IA

Average pressure in August - Oelwein, 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).

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Average wind speed in August
Oelwein, IA

Average wind speed in August - Oelwein, IA
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in August
Oelwein, IA

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

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Oelwein, IA

Average rainfall in August - Oelwein, IA
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is June (5").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in August
Oelwein, IA

Average rainfall days in August - Oelwein, IA
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall in August
Oelwein, IA

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

The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Oelwein, IA

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

The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in August
Oelwein, IA

Average sunshine days in August - Oelwein, IA
  • Average sunshine days in August: 14 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (7.8 days).

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Average UV index in August
Oelwein, IA

Average UV index in August - Oelwein, IA
  • Average UV index in August: 5

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

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Average cloud cover in August
Oelwein, IA

Average cloud cover in August - Oelwein, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in August
Oelwein, IA

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

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

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Oelwein, Iowa, USA

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