September weather forecastOsterdock, IA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Osterdock, Iowa, with an average temperature ranging between max 72.5°F (22.5°C) and min 52.7°F (11.5°C).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 78.4°F (25.8°C) in August to a pleasant 72.5°F (22.5°C). In the month of September, Osterdock experiences an average low-temperature of 52.7°F (11.5°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Osterdock, in September, it is raining for 11.5 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, in Osterdock, Iowa, there are 138.5 rainfall days, and 28.46" (723mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Osterdock, Iowa.Daylight
In Osterdock, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Osterdock is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take precautions - Protection against sun damage is advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Osterdock, IA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in September
Osterdock, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Osterdock, IA
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Osterdock, IA
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Osterdock, IA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Osterdock, IA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in September
Osterdock, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Osterdock, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Osterdock, 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 6min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Osterdock, IA
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Osterdock, 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, November and December (UV index 1).
Average cloud cover in September
Osterdock, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Osterdock, IA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
