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 onset of September is marked by a minor decrease in temperature, transitioning from a warm 76.6°F (24.8°C) in August to an agreeable 70.7°F (21.5°C). Cresco usually reports an average low-temperature of 52.2°F (11.2°C) during the month of September.Humidity
In Cresco, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 13.9 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 148.5 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
In Cresco, 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 the month, sunrise is at 6:33 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September in Cresco is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cresco have in September?
What is the UV index reading in September?
Average temperature in September
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
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
Cresco, 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
Cresco, 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
Cresco, 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
Cresco, 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).
Cresco, Iowa, USA
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