September weather forecastMiddletown, MD
September
Weather in September
September, the first month of the autumn in Middletown, is still a warm month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 56.8°F (13.8°C).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 83.3°F (28.5°C) in August to a still moderately hot 76.5°F (24.7°C). Middletown, during the nights of September, experiences an average temperature drop to a refreshing 56.8°F (13.8°C).Humidity
In September, the average relative humidity in Middletown, Maryland, is 78%.Rainfall
In Middletown, Maryland, during September, the rain falls for 13.2 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, in Middletown, there are 156 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
In Middletown, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:53 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. 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
Middletown, MD
- Average high temperature in September: 76.5°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°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Middletown, 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
Middletown, MD
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Middletown, 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
Middletown, MD
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in September
Middletown, MD
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Middletown, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Middletown, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Middletown, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in September
Middletown, MD
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Middletown, 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
Middletown, MD
- Average cloud cover in September: 39
The months with the most cloud cover are January, February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Middletown, 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).
