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
Struble's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's 80.8°F (27.1°C) to a still warm 75°F (23.9°C). In Struble, an average nighttime temperature of 54.9°F (12.7°C) is expected during September.Humidity
In September, the average relative humidity in Struble is 71%.Rainfall
In Struble, in September, during 10.6 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, in Struble, Iowa, there are 112 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Struble, Iowa, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:07 pm CDT.
Sunshine
In Struble, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Struble is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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
What are September temperatures in Struble?
What is the average humidity in September in Struble?
How much does it rain in Struble in September?
When it does not snow in Struble?
Does it snow in Struble in September?
What is the average length of the day in September in Struble?
When is the sunrise / sunset in September in Struble?
How many hours of sunshine does Struble have in September?
What is the UV index reading in September in Struble?
Average temperature in September
Struble, IA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Struble, IA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Struble, IA
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in September
Struble, IA
- Average humidity in September: 71%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Struble, IA
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Struble, IA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is June (16.5 days).
The months with the least rainy days are February and December (2.6 days).
Average snowfall in September
Struble, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Struble, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Struble, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Struble, IA
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in September
Struble, 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 2).
Average cloud cover in September
Struble, IA
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Struble, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Struble, Iowa, USA
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