September weather forecastUnion Bridge, MD
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Union Bridge, Maryland, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 56.7°F (13.7°C).Temperature
During the shift to September, Union Bridge records a mild decrease in average high-temperature, moving from a moderately hot 81.9°F (27.7°C) in August to a still warm 75.2°F (24°C). Throughout the September nights, Union Bridge encounters a low-temperature of 56.7°F (13.7°C).Humidity
In Union Bridge, the average relative humidity in September is 79%.Rainfall
In Union Bridge, during September, the rain falls for 14.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 157.5 rainfall days, and 27.52" (699mm) of precipitation is accumulated.Snowfall
In Union Bridge, 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 6:37 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:52 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Union Bridge, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 in September translates into these instructions:
Take precautions - Protection against skin and eye damage is obliged. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Union Bridge, MD
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (84°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 (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Union Bridge, 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
Union Bridge, MD
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Union Bridge, MD
- Average humidity in September: 79%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Union Bridge, MD
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in September
Union Bridge, MD
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Union Bridge, MD
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Union Bridge, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Union Bridge, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Union Bridge, MD
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Union Bridge, 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
Union Bridge, MD
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Union Bridge, MD
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
