September weather forecastPlymouth, NY
September
Weather in September
September, the first month of the autumn in Plymouth, is also an agreeable month, with an average temperature fluctuating between 68.9°F (20.5°C) and 49.6°F (9.8°C).Temperature
In Plymouth, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's moderately hot 75.9°F (24.4°C) to a pleasant 68.9°F (20.5°C). An average nighttime temperature of 49.6°F (9.8°C) is recorded during September.Humidity
In September, the average relative humidity in Plymouth, New York, is 81%.Rainfall
The month with the least rainfall in Plymouth is September, when the rain falls for 13.7 days and typically collects 2.28" (58mm) of precipitation.Snowfall
June through September are months without snowfall in Plymouth.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:36 pm. On the last day of September, in Plymouth, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine in Plymouth is 8.6h.UV index
The average daily maximum UV index in September in Plymouth is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plymouth, NY
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in September
Plymouth, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Plymouth, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Plymouth, NY
- Average humidity in September: 81%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
Plymouth, NY
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in September
Plymouth, NY
- Average rainfall days in September: 13.7 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Plymouth, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Plymouth, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plymouth, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Plymouth, NY
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in September
Plymouth, NY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Plymouth, NY
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Plymouth, NY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
