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
A mild drop in Brownsville's average high-temperature is observed in September, transitioning from a moderately hot 80.2°F (26.8°C) in August to a still warm 74.8°F (23.8°C). Brownsville encounters an average low-temperature of 57.2°F (14°C) during September nights.Humidity
In September, the average relative humidity is 78%.Rainfall
September and November are months with the least rain when the rain falls for 13 days and typically aggregates up to 1.61" (41mm) of rain.Snowfall
In Brownsville, snow does not fall in May through September.Daylight
In Brownsville, Indiana, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 7:08 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Brownsville is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
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 much does it rain in Brownsville in September?
When it does not snow in Brownsville?
Does it snow in Brownsville in September?
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?
What is the UV index intensity in September in Brownsville?
Average temperature in September
Brownsville, IN
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 57.2°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 (21.6°F).
Average pressure in September
Brownsville, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Brownsville, IN
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Brownsville, IN
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, July and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Brownsville, IN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are September and November (1.61").
Average rainfall days in September
Brownsville, IN
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Brownsville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Brownsville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.7 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, IN
- Average daylight in September: 12h and 2min
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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Brownsville, IN
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in September
Brownsville, IN
- 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, October, November and December (UV index 2).
Average cloud cover in September
Brownsville, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Brownsville, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Brownsville, Indiana, USA
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