September weather forecast and climate
Waterville, NY

The first month of the autumn, September, is also an agreeable month in Waterville, New York, with average temperature fluctuating between 69.8°F (21°C) and 50.9°F (10.5°C).

Temperature

In Waterville, the average high-temperature slightly decreases, from a moderately hot 76.1°F (24.5°C) in August, to an agreeable 69.8°F (21°C). In September, the average low-temperature is 50.9°F (10.5°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Waterville, New York, in September, during 13.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Waterville, there are 148.9 rainfall days, and 28.23" (717mm) of precipitation is accumulated.

Snowfall

In Waterville snow does not fall in June through September.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in September in Waterville?

The average high-temperature, in September, in Waterville, New York, is 69.8°F (21°C), while the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in September in Waterville?

In September, the average relative humidity in Waterville, New York, is 80%.

How many days does it rain in September in Waterville?

In Waterville, New York, during September, the rain falls for 13.1 days and regularly aggregates up to 1.89" (48mm) of precipitation.

Does it snow in Waterville in September?

In Waterville, New York, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Waterville?

In Waterville, New York, snow does not fall in June through September.

What is the average length of the day in September in Waterville?

In Waterville, the average length of the day in September is 12.5h.

How many hours of sunshine does Waterville have in September?

The average sunshine in September in Waterville is 8.9h.

What is the UV index reading in September in Waterville?

In Waterville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Waterville, NY
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in September - Waterville, NY
  • Average pressure in September: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed in September - Waterville, NY
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in September - Waterville, NY
  • Average humidity in September: 80%

The month with the highest relative humidity is February (88%).
Months with the lowest relative humidity are April and May (78%).

Average rainfall in September - Waterville, NY
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in September - Waterville, NY
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in September - Waterville, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (7.32").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Waterville, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (17.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Waterville, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 2.5h).

Average sunshine days in September - Waterville, NY
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (6.4 days).

Average UV index in September - Waterville, NY
  • Average UV index in September: 3

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September - Waterville, NY
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September - Waterville, NY
  • Average visibility in September: 5mi

Months with the highest visibility are April and October (6mi).
Months with the lowest visibility are January, February, March, May, June, July, August, September, November and December (5mi).