September weather forecastSaint Georges, DE
September
Weather in September
The first month of the autumn, September, is still a warm month in Saint Georges, Delaware, with an average temperature varying between 77°F (25°C) and 60.8°F (16°C).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's 83.5°F (28.6°C) to a still moderately hot 77°F (25°C). Throughout September, the average low-temperature in Saint Georges, Delaware, records at a comfortable 60.8°F (16°C).Humidity
In Saint Georges, the average relative humidity in September is 77%.Rainfall
In Saint Georges, in September, during 12.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, in Saint Georges, Delaware, there are 145.9 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Snowfall
In Saint Georges, snow does not fall in May through October.Daylight
In September, the average length of the day in Saint Georges is 12h and 26min.On the first day of the month, sunrise is at 6:31 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 EDT.
Sunshine
In Saint Georges, Delaware, the average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September in Saint Georges is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Take precautions - Protection against sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint Georges, DE
- Average high temperature in September: 77°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 (38.3°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Saint Georges, DE
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Saint Georges, DE
- Average wind speed in September: 6.1mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Saint Georges, DE
- Average humidity in September: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Saint Georges, DE
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in September
Saint Georges, DE
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Saint Georges, DE
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Saint Georges, DE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Saint Georges, DE
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Saint Georges, DE
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Saint Georges, DE
- Average UV index in September: 5
The months with the highest UV index are May, 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
Saint Georges, DE
- Average cloud cover in September: 36
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Saint Georges, DE
- 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).
