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Best time to visit · New York, United States
May & June and August & September are the best time to visit Ithaca on the climate data: May scores 82/100, with highs around 70°F (21°C) and 3.7 in (93 mm) of rain. April, July and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
Highs run from 31°F to 83°F across the year, and the yearly total is about 42.2 in (1071 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 31°F0°C | 34°F1°C | 43°F6°C | 57°F14°C | 70°F21°C | 78°F26°C | 83°F29°C | 82°F28°C | 76°F24°C | 61°F16°C | 48°F9°C | 37°F3°C |
| Avg low | 18°F-8°C | 19°F-7°C | 26°F-3°C | 37°F3°C | 49°F9°C | 58°F15°C | 64°F18°C | 62°F17°C | 55°F13°C | 44°F6°C | 33°F1°C | 25°F-4°C |
| Rain/snow | 2.5 in63 mm | 2.5 in63 mm | 2.9 in74 mm | 3.4 in86 mm | 3.7 in93 mm | 4.4 in112 mm | 4.2 in107 mm | 4.2 in107 mm | 4.0 in102 mm | 4.3 in108 mm | 2.9 in74 mm | 3.2 in82 mm |
| Humidity | 92% | 91% | 86% | 80% | 78% | 77% | 74% | 73% | 75% | 80% | 86% | 91% |
| Cloud | 80% | 78% | 72% | 68% | 66% | 62% | 57% | 58% | 55% | 69% | 73% | 82% |
| Comfort | 41 | 41 | 46 | 70 | 82 | 76 | 74 | 76 | 81 | 74 | 55 | 38 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~401 m (1,316 ft) to Ithaca's ~121 m (397 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs of 31–37°F (0–3°C) and lows down to 18°F (-8°C). It's the driest season, with only about 8.2 in (208 mm) of rain or snow, 19% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in December – February; the season averages 40/100.
Temperatures climb through the season, from 43°F highs in March to 70°F by May. About 10.0 in (253 mm) of rain or snow falls across these months, 24% of the year's total. March is cold enough for snow. Comfort peaks here: May ranks with the year's best, and the season averages 66/100.
Peak warmth: highs of 78–83°F (26–29°C). It's the wettest season, with about 12.8 in (326 mm) of rain, 30% of the year's total. June feels humid, with humidity near 77%. June and August are among the best-scoring months (season average 75/100).
Temperatures slide from 76°F highs in September to 48°F by November. About 11.2 in (284 mm) of rain falls across these months, 27% of the year's total. Lows bottom out around 33°F (1°C). Comfort peaks here: September ranks with the year's best, and the season averages 70/100.
By comfort score: 4 Great, 3 Good, 2 Fair and 3 Tough. Great months: May & June and August & September. Tap a month for its own guide.
May & June and August & September are the best time to visit Ithaca on the climate data: May scores 82/100, with highs around 70°F (21°C) and 3.7 in (93 mm) of rain. April, July and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
June is the wettest month, averaging about 4.4 in (112 mm) of rain. January is the driest, with about 2.5 in (63 mm). The yearly total is around 42.2 in (1071 mm).
January is the coldest, with average lows of 18°F (-8°C) and highs of 31°F (0°C). The warmest is July, with average highs of 83°F (29°C).
Yes: in June humidity averages 77% with warm temperatures, so it feels muggy. Summer highs peak around 83°F (29°C).
On average, yes: lows fall below 32°F (0°C) in December – March, bottoming out around 18°F (-8°C) in January.
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