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
September signals a slight drop in average high-temperature, sliding from August's moderately hot 77.2°F (25.1°C) to an agreeable 69.8°F (21°C). Gurnee's nights in September experience an average temperature drop to a frosty 49.6°F (9.8°C).Humidity
The average relative humidity in September in Gurnee is 81%.Rainfall
In Gurnee, in September, during 10.7 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 125.8 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Gurnee, sunrise is at 6:36 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:52 pm EDT.
Sunshine
In Gurnee, the average sunshine in September is 8.3h.UV index
In Gurnee, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Gurnee?
What is the average humidity in September in Gurnee?
How many days does it rain in September in Gurnee?
When it does not snow in Gurnee?
Does it snow in Gurnee in September?
How many hours of daylight does Gurnee have in September?
When are sunrise and sunset in September in Gurnee?
How many hours of sunshine does Gurnee have in September?
What is the UV index intensity in September in Gurnee?
Average temperature in September
Gurnee, PA
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Gurnee, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Gurnee, PA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Gurnee, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in September
Gurnee, PA
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is April (1.69").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in September
Gurnee, PA
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Gurnee, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gurnee, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gurnee, PA
- 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: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).
Average sunshine days in September
Gurnee, PA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in September
Gurnee, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Gurnee, PA
- Average cloud cover in September: 44
The months with the most cloud cover are January, February and December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
Gurnee, PA
- Average visibility in September: 4mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).
Gurnee, Pennsylvania, USA
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