United States · 1991–2020

Best time to visit
Ithaca.

June leads for comfortable weather in Ithaca: typically 24.4°C by day, 12.2°C at night, with 101 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune
Typical high24.4°C
Typical low12.2°C
Rain in June101 mm
Comfort

June

June · August · July

78climate match
Beach

July

July · August · June

57climate match
Outdoors

May

May · September · June

77climate match

The weakest month is January, scoring 5 against June’s 78days reach only -0.3°C, 24° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan
5-0.3° / -9.4°
Feb
50.9° / -9°
Mar
55.2° / -5.2°
Apr
2312.7° / 1°
May
5819.8° / 7.1°
Jun
7824.4° / 12.2°
Jul
7526.8° / 14.7°
Aug
7726° / 13.8°
Sep
7122.3° / 9.8°
Oct
3615.3° / 4.3°
Nov
108.6° / -0.5°
Dec
52.6° / -5.2°
Monthly climate evidence for Ithaca — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January-0.3°C-9.4°C57 mm10.59 h 235Strong coverage
February0.9°C-9°C49 mm8.410 h 295Strong coverage
March5.2°C-5.2°C71 mm10.111 h 485Strong coverage
April12.7°C1°C85 mm1113 h 1823Strong coverage
May19.8°C7.1°C81 mm10.814 h 3558Strong coverage
June24.4°C12.2°C101 mm10.615 h 1678Strong coverage
July26.8°C14.7°C101 mm9.815 h75Strong coverage
August26°C13.8°C98 mm913 h 5477Strong coverage
September22.3°C9.8°C98 mm8.912 h 2671Strong coverage
October15.3°C4.3°C96 mm10.710 h 5936Strong coverage
November8.6°C-0.5°C74 mm9.49 h 4310Strong coverage
December2.6°C-5.2°C65 mm10.89 h 055Strong coverage

What has changed

Ithaca runs +0.8°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan
+0.7
Feb
+1.5
Mar
+0.6
Apr
+0.5
May
+1.1
Jun
+0.5
Jul
+1.0
Aug
+0.3
Sep
+1.1
Oct
+0.8
Nov
+0.1
Dec
+1.6
June daytime highs, 20112025. Last recorded: 24.9°C.
Records at ITHACA CORNELL UNIV, 1893–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January21.1°C21 Jan 1906-31.7°C16 Jan 195750 mm12 Jan 1915162 mm1978 · driest 11 mm in 1933134
February22.8°C25 Feb 2017-31.7°C2 Feb 196144 mm28 Feb 1958117 mm1896 · driest 7 mm in 1968133
March29.4°C31 Mar 1977-27.2°C19 Mar 199363 mm1 Mar 1900176 mm1936 · driest 8 mm in 1910134
April32.8°C28 Apr 2009-18.3°C5 Apr 201654 mm11 Apr 1993207 mm1993 · driest 14 mm in 1915133
May35.6°C22 May 1911-5.6°C4 May 197857 mm14 May 2002205 mm1984 · driest 8 mm in 1903133
June38.9°C29 Jun 1933-0.6°C1 Jun 196690 mm22 Jun 1972300 mm1972 · driest 22 mm in 1927132
July39.4°C9 Jul 19363.3°C9 Jul 1963117 mm8 Jul 1935320 mm1935 · driest 23 mm in 1983132
August38.3°C22 Aug 19160.0°C30 Aug 1965101 mm16 Aug 1947220 mm1922 · driest 14 mm in 1923132
September37.8°C12 Sep 1931-4.4°C30 Sep 1991113 mm8 Sep 2011266 mm2011 · driest 16 mm in 1943132
October32.8°C2 Oct 1927-9.4°C30 Oct 1928129 mm28 Oct 1981213 mm1981 · driest 5 mm in 1963132
November27.2°C2 Nov 1950-20.6°C23 Nov 2018102 mm9 Nov 1996163 mm1927 · driest 14 mm in 1939132
December20.6°C7 Dec 1998-30.0°C30 Dec 191761 mm15 Dec 1901152 mm2012 · driest 3 mm in 1928131
Typical days per month at ITHACA CORNELL UNIV, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January0028112
February0026110
March<102527
April2<11432
May71320
June154030
July226040
August204030
September102<130
October2073<1
November001823
December002629
How often, not how much — every day in ITHACA CORNELL UNIV’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January<1%31%4%38%-3.7–3.0°C
February<1%31%5%38%-2.6–3.9°C
March2%31%6%41%2.4–9.2°C
April12%36%8%48%10.3–15.4°C
May34%35%9%47%17.1–22.3°C
June58%33%11%40%22.8–26.5°C
July68%31%11%37%25.5–29.2°C
August69%28%10%30%24.2–28.3°C
September50%29%9%35%20.2–24.2°C
October20%31%8%38%13.1–17.9°C
November3%32%6%40%5.7–11.3°C
December0%33%6%41%-1.0–5.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1893Each stripe is one year’s mean temperature against the 125-year average. Warmest: 1931. Coolest: 1926.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 5122432
NOAA station
USC00304174 · ITHACA CORNELL UNIV
Station distance
4 km from the place centre
Climate period
1991–2020
Minimum month coverage
28 usable years
Daylight
Calculated from latitude 42.44°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from ITHACA CORNELL UNIV is what differs

South HillCayuga HeightsLansingNortheast IthacaEast IthacaNorthwest Ithaca