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
As August transitions into September, Gary sees a gentle drop in the average high-temperature, transitioning from a moderately hot 82°F (27.8°C) to a still warm 76.3°F (24.6°C). Gary documents a marked decrease from day to night, with an average low of 54.1°F (12.3°C) throughout September.Humidity
In September, the average relative humidity is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 15.2 days and typically collects 1.54" (39mm) of precipitation.Snowfall
June through September are months without snowfall in Gary.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Gary, sunrise is at 6:57 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:10 pm EDT.
Sunshine
In Gary, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index 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: An average UV index of 4 in September transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Gary?
What is the average humidity in September in Gary?
What is the driest month in Gary?
How much does it rain in Gary in September?
When it does not snow in Gary?
Does it snow in Gary in September?
How many hours of daylight does Gary have in September?
When is the sunrise / sunset in September in Gary?
How many hours of sunshine does Gary have in September?
What is the UV index reading in September in Gary?
Average temperature in September
Gary, WV
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Gary, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Gary, WV
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Gary, WV
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August and November (76%).
Average rainfall in September
Gary, WV
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Gary, WV
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and November (10.1 days).
Average snowfall in September
Gary, WV
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gary, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gary, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Gary, WV
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in September
Gary, WV
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Gary, WV
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 36).
Average visibility in September
Gary, WV
- 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).
Gary, West Virginia, USA
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