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Monthly climate in Ithaca, New York, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ithaca features a humid continental climate (Dfb).Temperatures typically range between -3 °C (26 °F) and 22 °C (72 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1275 mm (50.2 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually.Ithaca enjoys an average of 2702 hours of sunshine throughout the year, and daylight varies from 9 hours 6 minutes to 15 hours 13 minutes per day.

Monthly average temperatures in Ithaca, New York, United States §

The warmest months in Ithaca are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (67 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (26 - 32 °F) throughout the day. On average each year, Ithaca experiences 60 days above 25 °C (77.0 °F) and 114 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ithaca, New York, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 17°C
(63°F)		 20°C
(69°F)		 23°C
(73°F)		 27°C
(80°F)		 32°C
(89°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(91°F)		 28°C
(82°F)		 23°C
(74°F)		 17°C
(63°F)
Mean maximum 11°C
(53°F)		 14°C
(58°F)		 19°C
(66°F)		 23°C
(74°F)		 30°C
(87°F)		 32°C
(89°F)		 32°C
(90°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(80°F)		 19°C
(66°F)		 13°C
(55°F)
Average high 0°C
(32°F)		 2°C
(36°F)		 6°C
(43°F)		 12°C
(55°F)		 19°C
(67°F)		 24°C
(76°F)		 27°C
(80°F)		 26°C
(79°F)		 22°C
(73°F)		 16°C
(61°F)		 7°C
(46°F)		 2°C
(37°F)
Daily mean -3°C
(26°F)		 -2°C
(28°F)		 1°C
(34°F)		 8°C
(46°F)		 14°C
(58°F)		 19°C
(67°F)		 22°C
(72°F)		 21°C
(70°F)		 17°C
(64°F)		 12°C
(53°F)		 4°C
(39°F)		 -0°C
(32°F)
Average low -7°C
(20°F)		 -7°C
(20°F)		 -3°C
(26°F)		 3°C
(38°F)		 9°C
(49°F)		 14°C
(57°F)		 18°C
(64°F)		 17°C
(63°F)		 13°C
(55°F)		 8°C
(47°F)		 0°C
(32°F)		 -3°C
(26°F)
Mean minimum -18°C
(-0°F)		 -18°C
(-1°F)		 -15°C
(5°F)		 -3°C
(26°F)		 1°C
(34°F)		 8°C
(47°F)		 12°C
(54°F)		 11°C
(52°F)		 6°C
(42°F)		 1°C
(33°F)		 -10°C
(15°F)		 -13°C
(9°F)
Minimum -25°C
(-13°F)		 -23°C
(-9°F)		 -17°C
(1°F)		 -5°C
(23°F)		 -2°C
(28°F)		 4°C
(39°F)		 10°C
(51°F)		 7°C
(45°F)		 1°C
(34°F)		 -0°C
(32°F)		 -20°C
(-3°F)		 -17°C
(1°F)

Compare climate in Ithaca with other places

Compare temperature, precipitation, sunshine, UV index in Ithaca, New York, United States with other places around the world.

Monthly average precipitation in Ithaca, New York, United States §

Ithaca usually has the most precipitation in May, July and October, with an average of 15 rainy days and 141 mm (5.6 inches) of precipitation per month.The driest months in Ithaca are January, February and March. On average, 85 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ithaca, New York, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 82 (3.2) 89 (3.5) 85 (3.4) 118 (4.6) 127 (5.0) 95 (3.7) 146 (5.8) 100 (3.9) 91 (3.6) 150 (5.9) 95 (3.7) 97 (3.8)
Average precipitation days (≥ 1 mm) 13 14 13 16 17 12 15 12 9 15 14 15

Monthly sunshine hours in Ithaca, New York, United States §

The sunniest months in Ithaca are June, July and August, when the sun shines an average of 10 hours 49 minutes a day.Least sunny months in Ithaca: January, February and December receive an average of 3 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ithaca, New York, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 103 143 215 228 265 324 341 329 283 204 152 109
Mean daily daylight hours 9h 27m 10h 33m 11h 58m 13h 24m 14h 37m 15h 13m 14h 53m 13h 48m 12h 25m 11h 0m 9h 44m 9h 6m

Solar UV radiation in Ithaca, New York, United States §

Ithaca experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Ithaca UV Index data.

Average daily maximum UV levels by month for Ithaca, New York, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 4 6 8 10 10 10 9 8 6 4 2