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 arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 82°F (27.8°C) to a still moderately hot 76.3°F (24.6°C). The average low-temperature, in September, is a refreshing 66.2°F (19°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Girdletree, Maryland, in September, it is raining for 10.8 days, with typically 1.1" (28mm) of accumulated precipitation. In Girdletree, during the entire year, the rain falls for 131.3 days and collects up to 14.88" (378mm) of precipitation.Snowfall
In Girdletree, snow does not fall in April through October.Daylight
The average length of the day in September in Girdletree is 12h and 25min.On the first day of September, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
In Girdletree, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Girdletree have in September?
How high is the UV index in September?
Average temperature in September
Girdletree, MD
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Girdletree, MD
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Girdletree, MD
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Girdletree, MD
- Average humidity in September: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
Girdletree, MD
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Girdletree, MD
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Girdletree, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Girdletree, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.9 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
Girdletree, MD
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Girdletree, MD
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Girdletree, MD
- 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 and December (UV index 2).
Average cloud cover in September
Girdletree, MD
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Girdletree, MD
- 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).
Girdletree, Maryland, USA
Weather forecast for your location
2. Allow the app to use your location