September weather forecastFostoria, IA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Fostoria, Iowa, with an average temperature fluctuating between 72.9°F (22.7°C) and 53.8°F (12.1°C).Temperature
With the arrival of September, Fostoria experiences a modest decline in average high-temperatures, transitioning from a warm 78.3°F (25.7°C) in August to a pleasant 72.9°F (22.7°C). During the month of September, Fostoria's nighttime temperature lowers to an average of 53.8°F (12.1°C).Humidity
In September, the average relative humidity in Fostoria is 74%.Rainfall
In Fostoria, in September, it is raining for 10.5 days, with typically 1.3" (33mm) of accumulated 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
The average length of the day in September in Fostoria, Iowa, is 12h and 29min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:55 pm. On the last day of September, in Fostoria, sunrise is at 7:17 am and sunset at 7:02 pm CDT.
Sunshine
In Fostoria, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fostoria, IA
- Average high temperature in September: 72.9°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 September: 53.8°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 September
Fostoria, IA
- Average pressure in September: 30"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 September
Fostoria, IA
- Average wind speed in September: 9mph
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 September
Fostoria, IA
- Average humidity in September: 74%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Fostoria, IA
- Average rainfall in September: 1.3"
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 September
Fostoria, IA
- Average rainfall days in September: 10.5 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 September
Fostoria, IA
- Average snowfall in September: 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 September
Fostoria, IA
- Average snowfall days in September: 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 September /
Average sunshine in September
Fostoria, IA
- Average daylight in September: 12h and 30min
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 September: 9h and 0min
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 September
Fostoria, IA
- Average sunshine days in September: 17.5 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 September
Fostoria, IA
- Average UV index in September: 4
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 September
Fostoria, IA
- Average cloud cover in September: 31
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 September
Fostoria, IA
- Average visibility in September: 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).
