September weather forecastOtho, IA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Otho, Iowa, with an average temperature fluctuating between 74.1°F (23.4°C) and 54.9°F (12.7°C).Temperature
The transition into September is marked with an average high-temperature of a still warm 74.1°F (23.4°C), showing an insignificant shift from August's 79°F (26.1°C). The average low-temperature, in September, is a fresh 54.9°F (12.7°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In Otho, in September, during 11.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 130.9 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
In Otho, snow does not fall in June through September.Daylight
In September, the average length of the day in Otho is 12h and 28min.On the first day of September, sunrise is at 6:42 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Otho, IA
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in September: 54.9°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 (12.2°F).
Average pressure in September
Otho, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Otho, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Otho, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (69%).
Average rainfall in September
Otho, IA
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Otho, IA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Otho, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Otho, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Otho, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Otho, IA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in September
Otho, 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
Otho, IA
- Average cloud cover in September: 31
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 September
Otho, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
