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 start of September signals a gentle decrease in the average high-temperature, transitioning from 84.6°F (29.2°C) in August to a still warm 78.8°F (26°C). The low-temperature average for Hamburg during September stands at a mild 59.2°F (15.1°C).Humidity
In Hamburg, Illinois, the average relative humidity in September is 74%.Rainfall
In September, the rain falls for 11.4 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. In Hamburg, during the entire year, the rain falls for 130.3 days and collects up to 17.87" (454mm) of precipitation.Snowfall
April through October are months without snowfall in Hamburg, Illinois.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm CDT.
Sunshine
In Hamburg, Illinois, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Hamburg?
What is the average humidity in September in Hamburg?
How many days does it rain in September in Hamburg?
When it does not snow in Hamburg?
How many hours of daylight does Hamburg have in September?
When are sunrise and sunset in September in Hamburg?
How long on average sun shines in September in Hamburg?
What is the UV index reading in September in Hamburg?
Average temperature in September
Hamburg, IL
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in September: 59.2°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 (22.5°F).
Average pressure in September
Hamburg, IL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Hamburg, IL
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Hamburg, IL
- Average humidity in September: 74%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Hamburg, IL
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.17").
The driest months (with the least rainfall) are January and February (0.83").
Average rainfall days in September
Hamburg, IL
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Hamburg, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hamburg, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hamburg, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Hamburg, IL
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Hamburg, IL
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Hamburg, IL
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Hamburg, IL
- 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).
Hamburg, Illinois, USA
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