September weather forecastNodaway, IA
September
Weather in September
September, the first month of the autumn in Nodaway, is also a moderately hot month, with an average temperature fluctuating between 56.1°F (13.4°C) and 75.6°F (24.2°C).Temperature
September brings a slight decrease in the average high-temperature, shifting from 81.1°F (27.3°C) in August to a still warm 75.6°F (24.2°C). In the month of September, the average temperature dips to a mild 56.1°F (13.4°C) during the night.Humidity
The average relative humidity in September in Nodaway, Iowa, is 76%.Rainfall
In September, the rain falls for 10.4 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 115.1 rainfall days, and 19.21" (488mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Nodaway.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Take necessary precautions - Defending against sun damage is advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nodaway, IA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in September
Nodaway, IA
- Average pressure in September: 30.01"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 September
Nodaway, IA
- Average wind speed in September: 8.2mph
The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Nodaway, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and June (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Nodaway, IA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Nodaway, IA
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Nodaway, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Nodaway, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Nodaway, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Nodaway, IA
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in September
Nodaway, IA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Nodaway, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in September
Nodaway, 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).
