September weather forecastAppolds, MD
September
Weather in September
September, the first month of the autumn in Appolds, is still a warm month, with an average temperature ranging between min 56.7°F (13.7°C) and max 75.4°F (24.1°C).Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from 82°F (27.8°C) in August to a still warm 75.4°F (24.1°C). Appolds witnesses an average low-temperature of 56.7°F (13.7°C) throughout the month of September.Humidity
The average relative humidity in September is 79%.Rainfall
In Appolds, during September, the rain falls for 13.9 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Appolds, during the entire year, the rain falls for 164.1 days and collects up to 31.97" (812mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:39 pm. On the last day of September, in Appolds, sunrise is at 7:05 am and sunset at 6:52 pm EDT.
Sunshine
In Appolds, the average sunshine in September is 8.8h.UV index
In Appolds, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. 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
Average temperature in September
Appolds, MD
- Average high temperature in September: 75.4°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 (36.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Appolds, MD
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Appolds, MD
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Appolds, MD
- Average humidity in September: 79%
The month with the highest relative humidity is October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in September
Appolds, MD
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days in September
Appolds, MD
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Appolds, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Appolds, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Appolds, MD
- 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: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Appolds, MD
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in September
Appolds, MD
- Average UV index in September: 4
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
Appolds, MD
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Appolds, MD
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
