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
Salem's September weather features a mild decline in high-temperatures, reducing from 83.5°F (28.6°C) in August to a still moderately hot 74.3°F (23.5°C). The significant decline in Salem's temperature, from day to night, averages of 47.3°F (8.5°C) in September.Humidity
In Salem, the average relative humidity in September is 44%.Rainfall
In Salem, in September, during 7.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Salem, during the entire year, the rain falls for 112.5 days and collects up to 11.93" (303mm) of precipitation.Snowfall
In Salem, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:55 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm MDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Salem in September?
What is the average humidity in September in Salem?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Salem have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Salem have in September?
What is the UV index intensity in September?
Average temperature in September
Salem, UT
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Salem, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Salem, UT
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in September
Salem, UT
- Average humidity in September: 44%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (39%).
Average rainfall in September
Salem, UT
- Average rainfall in September: 0.59"
The wettest months (with the highest rainfall) are January and December (1.46").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in September
Salem, UT
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is June (6 days).
Average snowfall in September
Salem, UT
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Salem, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Salem, UT
- 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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Salem, UT
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is June (21.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in September
Salem, UT
- Average UV index in September: 4
The month with the highest UV index is July (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, UT
- Average cloud cover in September: 11
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Salem, UT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Salem, Utah, USA
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