September weather forecastOlmstedville, NY
September
Weather in September
September, the first month of the autumn in Olmstedville, is also an enjoyable month, with an average temperature varying between 47.5°F (8.6°C) and 67.1°F (19.5°C).Temperature
As September arrives, Olmstedville's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 74.1°F (23.4°C) to a comfortable 67.1°F (19.5°C). Olmstedville's nighttime temperature in September falls to an average of 47.5°F (8.6°C).Humidity
The average relative humidity in September in Olmstedville is 81%.Rainfall
In Olmstedville, in September, during 11.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Olmstedville, during the entire year, the rain falls for 160 days and collects up to 15.04" (382mm) of precipitation.Snowfall
In Olmstedville, New York, snow does not fall in June through September.Daylight
In Olmstedville, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:30 pm. On the last day of September, in Olmstedville, sunrise is at 6:52 am and sunset at 6:37 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Olmstedville is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olmstedville, NY
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Olmstedville, NY
- 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 (29.91"Hg).
Average wind speed in September
Olmstedville, NY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Olmstedville, NY
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Olmstedville, NY
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is October (1.73").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in September
Olmstedville, NY
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Olmstedville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Olmstedville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Olmstedville, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in September
Olmstedville, NY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Olmstedville, 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, March and December (UV index 1).
Average cloud cover in September
Olmstedville, NY
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Olmstedville, NY
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are January, February, March, August and September (4mi).





