Cortland
New York, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cortland, NY

A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York, clean, clear paths
A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York, clean, clear paths
The first month of the autumn, September, is also an agreeable month in Cortland, New York, with average temperature varying between 70.7°F (21.5°C) and 49.3°F (9.6°C).

Temperature

In September, the average high-temperature marginally drops, from a moderately hot 79.3°F (26.3°C) in August, to a pleasant 70.7°F (21.5°C). In Cortland, in September, the average low-temperature is 49.3°F (9.6°C).

Rainfall

In Cortland, New York, during September, the rain falls for 11.5 days and regularly aggregates up to 4" (100.8mm) of precipitation. Throughout the year, there are 160.2 rainfall days, and 39.3" (998.5mm) of precipitation is accumulated.

Snowfall

In Cortland, New York, in September, it doesn't snow. In October, it regularly snows. Throughout the year, in Cortland, 86.9" (2207.3mm) of snow is accumulated.

Daylight

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

What is the temperature in September in Cortland?

In September, in Cortland, New York, the average high-temperature is 70.7°F (21.5°C), and the average low-temperature is 49.3°F (9.6°C).

How many days does it rain in September in Cortland?

In Cortland, in September, it is raining for 11.5 days, with typically 4" (100.8mm) of accumulated precipitation.

Does it snow in Cortland in September?

In Cortland, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Cortland have in September?

The average length of the day in September is 12.5h.
Average temperature in September - Cortland, NY
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 49.3°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (15.2°F).

Average rainfall in September - Cortland, NY
  • Average rainfall in September: 4"

The wettest month (with the highest rainfall) is June (4.1").
The driest month (with the lowest rainfall) is February (2.5").

Average rainfall days in September - Cortland, NY
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is January (17.4 days).
The month with the lowest number of rainy days is August (10.2 days).

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

The month with the highest snowfall is December (22.3").
Months with the lowest snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (9.1 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September - Cortland, NY
  • Average daylight in September: 12.5h

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