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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 79.9°F (26.6°C) in August to an agreeable 73.2°F (22.9°C). Salem experiences an average low-temperature of 57.6°F (14.2°C) in the month of September.Humidity
The months with the highest humidity are February, June, July and September, with an average relative humidity of 78%.Rainfall
The month with the least rainfall in Salem, Connecticut, is September, when the rain falls for 11.7 days and typically collects 1.54" (39mm) of precipitation.Snowfall
In Salem, Connecticut, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:16 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:32 pm EDT.
Sunshine
In September, the average sunshine in Salem, Connecticut, is 8.5h.UV index
In Salem, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are September temperatures in Salem?
What are the most humid months 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?
How many hours of daylight does Salem have in September?
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, CT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 57.6°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 (23.4°F).
Average pressure in September
Salem, CT
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Salem, CT
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Salem, CT
- Average humidity in September: 78%
The months with the highest relative humidity are February, June, July and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Salem, CT
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is December (3.62").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Salem, CT
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Salem, CT
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Salem, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.6 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, CT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Salem, CT
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in September
Salem, CT
- Average UV index in September: 4
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, March, November and December (UV index 2).
Average cloud cover in September
Salem, CT
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Salem, CT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are May and June (5mi).
Salem, Connecticut, USA
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