August weather forecastPomeroy, IA

August

Weather in August

The last month of the summer, August, is another warm month in Pomeroy, Iowa, with an average temperature varying between 61.2°F (16.2°C) and 79.2°F (26.2°C).

Temperature

With the advent of August, Pomeroy experiences an average high-temperature of a still warm 79.2°F (26.2°C), mirroring a close resemblance to the previous month. In Pomeroy, an average temperature of 61.2°F (16.2°C) is noted during August nights.

Humidity

In August, the average relative humidity in Pomeroy is 81%.

Rainfall

In August, in Pomeroy, the rain falls for 10.1 days. Throughout August, 0.79" (20mm) of precipitation is accumulated. In Pomeroy, during the entire year, the rain falls for 84.6 days and collects up to 7.91" (201mm) of precipitation.

Snowfall

May through September are months without snowfall in Pomeroy.

Daylight

In August, the average length of the day in Pomeroy is 13h and 52min.
On the first day of August, sunrise is at 6:11 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:54 pm CDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

In August, the average daily maximum UV index in Pomeroy is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In August, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around 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: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In August, the average high-temperature and low-temperature are 79.2°F (26.2°C) and 61.2°F (16.2°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

In Pomeroy, the average relative humidity in August is 81%.

In Pomeroy, Iowa, in August, during 10.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

May through September are months without snowfall in Pomeroy.

The average day length in August in Pomeroy is 13h and 52min.

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:38 pm. On the last day of the month, in Pomeroy, Iowa, sunrise is at 6:43 am and sunset at 7:54 pm CDT.

In August, the average sunshine duration is 9.5h.

The average daily maximum UV index in August in Pomeroy, Iowa, is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Pomeroy, IA

  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

Average pressure in August
Pomeroy, IA

  • Average pressure in August: 29.96"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
Pomeroy, IA

  • Average wind speed in August: 7.4mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in August
Pomeroy, IA

  • Average humidity in August: 81%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in August
Pomeroy, IA

  • Average rainfall in August: 0.79"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in August
Pomeroy, IA

  • Average rainfall days in August: 10.1 days

The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in August
Pomeroy, IA

  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Pomeroy, IA

  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in August: 13h and 54min

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 30min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Pomeroy, IA

  • Average sunshine days in August: 18.8 days

The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).

Average UV index in August
Pomeroy, IA

  • Average UV index in August: 5

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

Average cloud cover in August
Pomeroy, IA

  • Average cloud cover in August: 33

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

Average visibility in August
Pomeroy, IA

  • Average visibility in August: 6mi

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