September weather forecastAdamstown, MD
September
Weather in September
September, the first month of the autumn in Adamstown, is still a warm month, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 76.3°F (24.6°C).Temperature
As August makes way for September, Adamstown's average high-temperature eases from a warm 83.5°F (28.6°C) to a still moderately hot 76.3°F (24.6°C). The low-temperature averages to a refreshing 56.8°F (13.8°C) during the nights of September.Humidity
The average relative humidity in September is 78%.Rainfall
In Adamstown, during September, the rain falls for 13.4 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 159.7 rainfall days, and 30.04" (763mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:39 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.
Sunshine
In Adamstown, the average sunshine in September is 8.8h.UV index
In Adamstown, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Adamstown, MD
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Adamstown, 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
Adamstown, MD
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Adamstown, MD
- Average humidity in September: 78%
The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Adamstown, MD
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in September
Adamstown, MD
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Adamstown, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Adamstown, MD
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Adamstown, 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 30min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in September
Adamstown, MD
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in September
Adamstown, 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
Adamstown, MD
- Average cloud cover in September: 38
The months with the most cloud cover are January, February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Adamstown, MD
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, May, September and October (5mi).
