August weather forecast
Kelley, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Kelley, Iowa, with an average temperature ranging between max 79.9°F (26.6°C) and min 61.9°F (16.6°C).

Temperature

With the onset of August, Kelley's average high-temperature clocks in at a still warm 79.9°F (26.6°C), showing a minor fluctuation from the previous month. In Kelley, in August, the average low-temperature is a comfortable 61.9°F (16.6°C).

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Kelley, in August, during 14.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Kelley, during the entire year, the rain falls for 130.6 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

In Kelley, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 49min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:49 pm CDT.

Sunshine

In Kelley, the average sunshine in August is 9.6h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 in August transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The average high-temperature and low-temperature during August are 79.9°F (26.6°C) and 61.9°F (16.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is evaluated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 80%.

How many days does it rain in August?

In August, the rain falls for 14.3 days. Throughout August, 2.68" (68mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

In Kelley, the average day length in August is 13h and 49min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:49 pm CDT.

How long on average sun shines in August?

In Kelley, the average sunshine duration in August is 9.6h.

What is the UV index intensity in August?

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

Average temperature in August - Kelley, IA
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in August: 61.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in August
Kelley, IA

Average pressure in August - Kelley, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Kelley, IA

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in August
Kelley, IA

Average humidity in August - Kelley, IA
  • Average humidity in August: 80%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Kelley, IA

Average rainfall in August - Kelley, IA
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in August
Kelley, IA

Average rainfall days in August - Kelley, IA
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in August
Kelley, IA

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Kelley, IA

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

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Kelley, IA
  • 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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Kelley, IA

Average sunshine days in August - Kelley, IA
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in August
Kelley, IA

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

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

Average cloud cover in August
Kelley, IA

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in August
Kelley, IA

Average visibility in August - Kelley, IA
  • 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).

Kelley, Iowa, USA

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