Ithaca Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Ithaca, New York during each month of the year.
The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 60, 70 or 80 °F each month in Ithaca, scroll down farther. There are also monthly and yearly counts of days with cold weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 31 | 14 | January | -1 | -10 |
| 33 | 16 | February | 1 | -9 |
| 41 | 22 | March | 5 | -5 |
| 55 | 33 | April | 13 | 1 |
| 69 | 47 | May | 21 | 8 |
| 76 | 54 | June | 24 | 12 |
| 82 | 59 | July | 28 | 15 |
| 79 | 57 | August | 26 | 14 |
| 73 | 50 | September | 23 | 10 |
| 60 | 41 | October | 16 | 5 |
| 46 | 30 | November | 8 | -1 |
| 37 | 24 | December | 3 | -5 |
| 57 | 37 | Year | 14 | 3 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 31 | 15 | January | -1 | -10 |
| 33 | 15 | February | 1 | -9 |
| 41 | 22 | March | 5 | -6 |
| 55 | 33 | April | 13 | 0 |
| 67 | 44 | May | 20 | 7 |
| 76 | 53 | June | 24 | 12 |
| 80 | 58 | July | 27 | 14 |
| 79 | 56 | August | 26 | 14 |
| 72 | 49 | September | 22 | 9 |
| 59 | 39 | October | 15 | 4 |
| 47 | 30 | November | 8 | -1 |
| 36 | 22 | December | 2 | -6 |
| 56 | 36 | Year | 13 | 2 |
Days of Hot Weather in Ithaca
Hot weather at Ithaca usually means highs in the 80s Fahrenheit. The city averages just five days a summer with temperatures peaking in the 90s F (over 32 °C).
| 60 °F 16 °C |
70 °F 21 °C |
80 °F 27 °C | |
|---|---|---|---|
| January | 0 | 0 | 0 |
| February | 1 | 0 | 0 |
| March | 3 | 1 | 0 |
| April | 10 | 4 | 1 |
| May | 24 | 14 | 5 |
| June | 29 | 24 | 11 |
| July | 31 | 29 | 17 |
| August | 31 | 29 | 15 |
| September | 28 | 19 | 6 |
| October | 15 | 6 | 1 |
| November | 5 | 1 | 0 |
| December | 1 | 0 | 0 |
| Year | 178 | 125 | 55 |
How Often Ithaca Has Cold Temperatures
On the coldest winter nights at Ithaca, the thermometer drops to 0 °F (-18 °C) or even lower. On average, ten nights a year, scattered from December to March, get that cold.
Ithaca also averag51 days a year when the daytime temperature stays below freezing. Crisp days can arrive here anytime from November to April.
| 10 °F -12 °C |
20 °F -8 °C |
32 °F 0 °C | |
|---|---|---|---|
| January | 11 | 20 | 28 |
| February | 9 | 17 | 26 |
| March | 4 | 12 | 25 |
| April | 0 | 1 | 14 |
| May | 0 | 0 | 3 |
| June | 0 | 0 | 0 |
| July | 0 | 0 | 0 |
| August | 0 | 0 | 0 |
| September | 0 | 0 | 1 |
| October | 0 | 0 | 7 |
| November | 0 | 4 | 18 |
| December | 4 | 12 | 26 |
| Year | 28 | 65 | 148 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.