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 Cambridge, the average high-temperature in September gently drops from a moderately hot 80.2°F (26.8°C) in August to a still warm 74.8°F (23.8°C). Cambridge's average low-temperature during September nights is observed to be a mild 55.9°F (13.3°C).Humidity
The average relative humidity in September is 76%.Rainfall
In Cambridge, in September, it is raining for 11.9 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, in Cambridge, there are 141.4 rainfall days, and 29.65" (753mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Cambridge, Iowa, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:40 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:56 pm CDT.
Sunshine
In Cambridge, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Cambridge, Iowa, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Cambridge?
What is the average humidity in September in Cambridge?
How many days does it rain in September in Cambridge?
When it does not snow in Cambridge?
Does it snow in Cambridge in September?
What is the average length of the day in September in Cambridge?
When are sunrise and sunset in September in Cambridge?
How many hours of sunshine does Cambridge have in September?
What is the UV index intensity in September in Cambridge?
Average temperature in September
Cambridge, IA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 55.9°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 (13.6°F).
Average pressure in September
Cambridge, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Cambridge, 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
Cambridge, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Cambridge, IA
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Cambridge, IA
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Cambridge, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cambridge, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cambridge, IA
- Average daylight in September: 12h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Cambridge, IA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Cambridge, 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, October, November and December (UV index 2).
Average cloud cover in September
Cambridge, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Cambridge, 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).
Cambridge, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location