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 arrival of September correlates with a minor temperature reduction, down from August's moderately hot 76.6°F (24.8°C) to a pleasant 70.7°F (21.5°C). During the nights in September, Ridgeway observes an average low-temperature of 52.2°F (11.2°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Ridgeway, in September, during 13.9 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Ridgeway, during the entire year, the rain falls for 148.5 days and collects up to 29.69" (754mm) 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, sunrise is at 6:32 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Ridgeway, Iowa, 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 ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the average September temperature in Ridgeway?
What is the average humidity in September in Ridgeway?
How many days does it rain in September in Ridgeway?
When it does not snow in Ridgeway?
Does it snow in Ridgeway in September?
What is the average length of the day in September in Ridgeway?
When is the sunrise / sunset in September in Ridgeway?
How many hours of sunshine does Ridgeway have in September?
How high is the UV index in September in Ridgeway?
Average temperature in September
Ridgeway, IA
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Ridgeway, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Ridgeway, IA
- Average wind speed in September: 8.4mph
The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Ridgeway, IA
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Ridgeway, IA
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is June (4.8").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Ridgeway, IA
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is June (20.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Ridgeway, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ridgeway, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ridgeway, 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 August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Ridgeway, IA
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in September
Ridgeway, IA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
Ridgeway, IA
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Ridgeway, IA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Ridgeway, Iowa, USA
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