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
In Brownsville, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's moderately hot 81.9°F (27.7°C) to a still warm 75.6°F (24.2°C). Throughout September, Brownsville's nights cool down to an average of 54.5°F (12.5°C).Humidity
The average relative humidity in September in Brownsville is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.28" (7mm) of precipitation.Snowfall
May through October are months without snowfall in Brownsville.Daylight
The average length of the day in September in Brownsville is 12h and 26min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:50 pm. On the last day of September, in Brownsville, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
In Brownsville, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the average September temperature in Brownsville?
What is the average humidity in September in Brownsville?
What is the driest month in Brownsville?
How many days does it rain in September in Brownsville?
When it does not snow in Brownsville?
How many hours of daylight does Brownsville have in September?
What time are sunrise and sunset in September in Brownsville?
How many hours of sunshine does Brownsville have in September?
How high is the UV index in September in Brownsville?
Average temperature in September
Brownsville, PA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Brownsville, PA
- Average pressure in September: 30.05"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
Brownsville, PA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Brownsville, PA
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and November (77%).
Average rainfall in September
Brownsville, PA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Brownsville, PA
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Brownsville, PA
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Brownsville, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brownsville, PA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Brownsville, PA
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in September
Brownsville, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Brownsville, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Brownsville, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Brownsville, Pennsylvania, USA
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