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
In Cedar Rapids, entering September brings a subtle temperature decrement, reducing from August's 82.9°F (28.3°C) to a still moderately hot 76.5°F (24.7°C). Cedar Rapids, during September nights, observes an average temperature of 55.4°F (13°C).Humidity
In Cedar Rapids, the average relative humidity in September is 67%.Rainfall
In Cedar Rapids, Nebraska, in September, during 9.5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 108.8 rainfall days, and 18.98" (482mm) of precipitation is accumulated.Snowfall
In Cedar Rapids, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Take precautions - Protection against sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Cedar Rapids 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?
How many hours of daylight does Cedar Rapids have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Cedar Rapids have in September?
What is the UV index reading in September?
Average temperature in September
Cedar Rapids, NE
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 55.4°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 (17.1°F).
Average pressure in September
Cedar Rapids, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Cedar Rapids, NE
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Cedar Rapids, NE
- Average humidity in September: 67%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (63%).
Average rainfall in September
Cedar Rapids, NE
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in September
Cedar Rapids, NE
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Cedar Rapids, NE
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cedar Rapids, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cedar Rapids, NE
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Cedar Rapids, NE
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Cedar Rapids, NE
- Average UV index in September: 5
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
Cedar Rapids, NE
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and September (Cloud cover 27).
Average visibility in September
Cedar Rapids, NE
- 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).
Cedar Rapids, Nebraska, USA
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