September weather forecastIra, IA
September
Weather in September
The first month of the autumn, September, is still a warm month in Ira, Iowa, with an average temperature ranging between max 74.7°F (23.7°C) and min 55.8°F (13.2°C).Temperature
The onset of September brings a small shift in high-temperatures, falling from a warm 80.2°F (26.8°C) in August to a still moderately hot 74.7°F (23.7°C). Throughout the month of September, the nighttime temperature in Ira, Iowa, dips to an average of 55.8°F (13.2°C).Humidity
In Ira, the average relative humidity in September is 77%.Rainfall
In Ira, in September, it is raining for 11.1 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Ira, there are 132.2 rainfall days, and 26.65" (677mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Ira.Daylight
The average length of the day in September in Ira is 12h and 28min.On the first day of September in Ira, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm CDT.
Sunshine
The average sunshine in September in Ira is 9.4h.UV index
In Ira, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ira, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in September
Ira, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Ira, IA
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Ira, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Ira, IA
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Ira, IA
- Average rainfall days in September: 11.1 days
The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Ira, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ira, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ira, 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 12min).
- Average sunshine in September: 9h and 24min
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 6min).
Average sunshine days in September
Ira, IA
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is December (18.1 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Ira, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Ira, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Ira, 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).
