August weather forecast
Fostoria, IA

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Weather in August

August, the last month of the summer in Fostoria, is also a moderately hot month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 78.3°F (25.7°C).

Temperature

The advent of August denotes an average high-temperature of a still warm 78.3°F (25.7°C), subtly different from July's 80.2°F (26.8°C). During August, Fostoria sees a mean low-temperature of 59.5°F (15.3°C).

Humidity

The average relative humidity in August is 79%.

Rainfall

In Fostoria, during August, the rain falls for 12.6 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Fostoria, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 54min.
On the first day of August in Fostoria, Iowa, sunrise is at 6:11 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

In August, the average daily maximum UV index in Fostoria is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Fostoria?

The high-temperature, in August, in Fostoria, is 78.3°F (25.7°C), while the low-temperature averages to 59.5°F (15.3°C).

What is the average humidity in August in Fostoria?

In Fostoria, Iowa, the average relative humidity in August is 79%.

How many days does it rain in August in Fostoria?

In Fostoria, in August, it is raining for 12.6 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in Fostoria?

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

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

In Fostoria, the average day length in August is 13h and 54min.

What time are sunrise and sunset in August in Fostoria?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:42 pm. On the last day of the month, in Fostoria, Iowa, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Fostoria have in August?

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

What is the UV index reading in August in Fostoria?

In Fostoria, Iowa, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents 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
Fostoria, IA

Average temperature in August - Fostoria, IA
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in August: 59.5°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 (10.6°F).

Average pressure in August
Fostoria, IA

Average pressure in August - Fostoria, 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 (29.87"Hg).

Average wind speed in August
Fostoria, IA

Average wind speed in August - Fostoria, IA
  • Average wind speed in August: 7.8mph

The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in August
Fostoria, IA

Average humidity in August - Fostoria, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Fostoria, IA

Average rainfall in August - Fostoria, IA
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Fostoria, IA

Average rainfall days in August - Fostoria, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in August
Fostoria, IA

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

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Fostoria, IA

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Fostoria, 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 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Fostoria, IA

Average sunshine days in August - Fostoria, IA
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in August
Fostoria, IA

Average UV index in August - Fostoria, 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
Fostoria, IA

Average cloud cover in August - Fostoria, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Fostoria, IA

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

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

Fostoria, Iowa, USA

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