Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a moderately hot 76.8°F (24.9°C) in August to a pleasant 71.4°F (21.9°C). The nights of September in Osage anticipate an average low-temperature of 52.9°F (11.6°C).Humidity
In Osage, the average relative humidity in September is 79%.Rainfall
In Osage, Iowa, in September, it is raining for 12.1 days, with typically 2.32" (59mm) of accumulated precipitation. In Osage, Iowa, during the entire year, the rain falls for 135.3 days and collects up to 26.54" (674mm) of precipitation.Snowfall
In Osage, Iowa, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:36 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:53 pm CDT.
Sunshine
In September, the average sunshine in Osage is 8.9h.UV index
In Osage, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are the temperatures in Osage in September?
What is the average humidity in September in Osage?
How many days does it rain in September in Osage?
When it does not snow in Osage?
Does it snow in Osage in September?
How many hours of daylight does Osage have in September?
When are sunrise and sunset in September in Osage?
How many hours of sunshine does Osage have in September?
How high is the UV index in September in Osage?
Average temperature in September
Osage, IA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 52.9°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 (9°F).
Average pressure in September
Osage, IA
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Osage, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Osage, IA
- Average humidity in September: 79%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Osage, IA
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Osage, IA
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Osage, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Osage, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (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
Osage, IA
- Average daylight in September: 12h and 3min
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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Osage, IA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in September
Osage, 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, February, November and December (UV index 1).
Average cloud cover in September
Osage, IA
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Osage, IA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Osage, Iowa, USA
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