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
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 84.7°F (29.3°C) in August to a still moderately hot 78.3°F (25.7°C). Throughout September, Salem encounters an average temperature drop to a refreshing 59°F (15°C).Humidity
September and October, with an average relative humidity of 75%, are the least humid months.Rainfall
September is the month with the least rainfall in Salem. Rain falls for 11.5 days and accumulates 1.02" (26mm) of precipitation.Snowfall
May through September are months without snowfall in Salem, Indiana.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:14 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:28 pm EDT.
Sunshine
The average sunshine in September in Salem is 8.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 5 in September translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are September temperatures in Salem?
What is the least humid month in Salem?
What is the average humidity in September in Salem?
What is the driest month in Salem?
How much does it rain in Salem in September?
When it does not snow in Salem?
Does it snow in Salem in September?
What is the average length of the day in September in Salem?
When are sunrise and sunset in September in Salem?
How many hours of sunshine does Salem have in September?
What is the UV index reading in September in Salem?
Average temperature in September
Salem, IN
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
Salem, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Salem, IN
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Salem, IN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in September
Salem, IN
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is April (2.2").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in September
Salem, IN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Salem, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Salem, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.4 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
Salem, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Salem, IN
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in September
Salem, IN
- Average UV index in September: 5
The months with the highest UV index are 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
Salem, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Salem, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Salem, Indiana, USA
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