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
With the advent of September, Dows's high-temperatures adjust to a pleasant 72.7°F (22.6°C), closely aligning with the preceding month. Dows throughout September, experiences an average nighttime temperature of 54.3°F (12.4°C).Humidity
In September, the average relative humidity in Dows is 77%.Rainfall
In Dows, during September, the rain falls for 11.8 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Dows, during the entire year, the rain falls for 136.3 days and collects up to 26.18" (665mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September in Dows, sunrise is at 6:39 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:56 pm CDT.
Sunshine
The average sunshine in September in Dows is 9.1h.UV index
In Dows, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Dows?
What is the average humidity in September in Dows?
How many days does it rain in September in Dows?
When it does not snow in Dows?
Does it snow in Dows in September?
How many hours of daylight does Dows have in September?
When is the sunrise / sunset in September in Dows?
How many hours of sunshine does Dows have in September?
What is the UV index reading in September in Dows?
Average temperature in September
Dows, IA
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 54.3°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 (10.8°F).
Average pressure in September
Dows, 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
Dows, IA
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Dows, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Dows, IA
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Dows, IA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Dows, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dows, 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
Dows, 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 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Dows, IA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in September
Dows, IA
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Dows, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in September
Dows, 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).
Dows, Iowa, USA
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