Historical weather data, all-time temperature records, and monthly climate averages for Ithaca, NY. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Ithaca has seen some wild swings over 132 years of records — from a balmy 83° back in 1921 to a brutal -1° as recently as 2016. Today sits in that classic early-spring limbo, with an average high of just 50° and a coin-flip (48%) chance of precipitation. Snow isn't out of the question either, with a 13% chance keeping things interesting.
Ithaca's weather has real teeth at both ends of the thermometer — 103° in the summer of 1936 and -25° in January 1957 represent a 128-degree spread between the all-time extremes. The snowiest single day on record dropped a staggering 26 inches on Valentine's Day 1914, and a late-October storm in 1981 dumped over 5 inches of rain in a single day.
Summer is Ithaca's sweet spot, with highs peaking around 81-82° in mid-to-late July — also the wettest stretch of the year at nearly an inch of rain per week. Winter is long and cold, with highs barely cracking 30° from late January through early February. Spring and fall are short transitions, so if you're planning a visit, July and August offer the most reliably pleasant conditions.