September weather forecastDavenport, NE
September
Weather in September
September, the first month of the autumn in Davenport, is also a moderately hot month, with an average temperature varying between 58.3°F (14.6°C) and 78.1°F (25.6°C).Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a warm 85.6°F (29.8°C) in August to a still moderately hot 78.1°F (25.6°C). The nights of September anticipate an average low-temperature of 58.3°F (14.6°C).Humidity
The average relative humidity in September is 67%.Rainfall
In Davenport, during September, the rain falls for 11.7 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 116.1 rainfall days, and 21.02" (534mm) of precipitation is accumulated.Snowfall
In Davenport, snow does not fall in June through September.Daylight
In Davenport, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:14 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In Davenport, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Davenport, NE
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Davenport, 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
Davenport, NE
- Average wind speed in September: 9.5mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in September
Davenport, NE
- Average humidity in September: 67%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (62%).
Average rainfall in September
Davenport, NE
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Davenport, NE
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and February (3.1 days).
Average snowfall in September
Davenport, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Davenport, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Davenport, NE
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Davenport, NE
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Davenport, NE
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Davenport, NE
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Davenport, 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).





