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
September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 82.8°F (28.2°C) to a still warm 76.1°F (24.5°C). An average low-temperature of 58.1°F (14.5°C) marks the nights throughout September.Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall in Brownsburg. Rain falls for 12.2 days and accumulates 1.61" (41mm) of precipitation.Snowfall
In Brownsburg, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:27 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
In Brownsburg, Pennsylvania, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Brownsburg is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Guard yourself - An obligation to protect skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Brownsburg?
What is the average humidity in September in Brownsburg?
What is the driest month in Brownsburg?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Brownsburg have in September?
What is the UV index intensity in September?
Average temperature in September
Brownsburg, PA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Brownsburg, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Brownsburg, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Brownsburg, PA
- Average humidity in September: 77%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Brownsburg, PA
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Brownsburg, PA
- Average rainfall days in September: 12.2 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Brownsburg, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brownsburg, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Brownsburg, 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 July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Brownsburg, PA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
Brownsburg, PA
- 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, March, November and December (UV index 2).
Average cloud cover in September
Brownsburg, PA
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Brownsburg, PA
- 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).
Brownsburg, Pennsylvania, USA
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