World Resorts USA Ithaca Weather

Ithaca weather in September

Weather in Ithaca: September

Average day temperature: 68.7°F
Average night temperature: 55.0°F
Number of sunny days: 11 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 1 day
Precipitation totals: 0.8 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 77°F. At the same time the lowest night temperature was 39°F. Daily and nightly averages during September were 70.8°F and 53.3°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Ithaca in September is 0.8 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 6.1 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.8.

Best time for vacation in Ithaca

Sunniest months:
September 11 days
October 10 days
August 8 days
Warmest months:
July 77.7 °F
August 74.8 °F
June 72.3 °F
Coldest months:
January 28.4 °F
February 30.5 °F
December 35.1 °F
Rainiest months:
July 3 days
April 3 days
August 3 days
Windiest months:
March 9.9 mph
November 9.3 mph
April 9.1 mph

Ithaca on a weather map

Ithaca
+16°F
E 6 mph
Feels like: +3°F
Precip.: 0%
Places in USA:
Name
°F
+28°F
+73°F
+73°F
+46°F
+55°F
+70°F
+73°F
+68°F
+30°F
+55°F
+46°F
+63°F
+63°F
+61°F
0°F
24 Hours Forecast
Ithaca
Local time: 08:13
December 14, sunday
0900
16°F
E
6 mph
1200
18°F
E
14 mph
1500
18°F
E
14 mph
1800
16°F
SE
14 mph
2100
16°F
SE
12 mph
December 15, monday
0000
16°F
SE
15 mph
0300
18°F
SE
12 mph
0600
18°F
SE
13 mph
Units of measurement: °C / °F