Penn Yan weather by month
What a typical year looks like in Penn Yan, New York: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Geneva Research Farm, 24 km from Penn Yan; records cover 1969–2026.
The year at a glance
- Precipitation a year
- 34.6 in879 mm
- Snow a year
- 57 in144 cm
- Last spring freeze
- Apr 27
- First fall freeze
- Oct 18
- Heating degree days
- 7,006
- Cooling degree days
- 474
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Penn Yan in January
Highs average 30°−1° and lows 16°−9°, with 1.8 in45 mm of precipitation and 14 in34 cm of snow in a typical January.
- Record high
- 67°19° (1975)
- Record low
- −16°−27° (2005)
- Heating degree days
- 1299
- Cooling degree days
- 0
Penn Yan in February
Highs average 32°0° and lows 17°−8°, with 1.6 in40 mm of precipitation and 13 in34 cm of snow in a typical February.
- Record high
- 69°21° (1984)
- Record low
- −16°−27° (1979)
- Heating degree days
- 1135
- Cooling degree days
- 0
Penn Yan in March
Highs average 40°4° and lows 24°−5°, with 2.4 in61 mm of precipitation and 13 in33 cm of snow in a typical March.
- Record high
- 84°29° (1986)
- Record low
- −7°−22° (1993)
- Heating degree days
- 1025
- Cooling degree days
- 0
Penn Yan in April
Highs average 54°12° and lows 35°2°, with 2.8 in70 mm of precipitation and 1.8 in4.6 cm of snow in a typical April.
- Record high
- 89°32° (1990)
- Record low
- 10°−12° (1972)
- Heating degree days
- 625
- Cooling degree days
- 3
Penn Yan in May
Highs average 67°19° and lows 46°8°, with 3.3 in83 mm of precipitation in a typical May.
- Record high
- 93°34° (2006)
- Record low
- 27°−3° (1974)
- Heating degree days
- 290
- Cooling degree days
- 26
Penn Yan in June
Highs average 75°24° and lows 56°13°, with 3.6 in92 mm of precipitation in a typical June.
- Record high
- 96°36° (2005)
- Record low
- 36°2° (1972)
- Heating degree days
- 77
- Cooling degree days
- 94
Penn Yan in July
Highs average 79°26° and lows 61°16°, with 3.7 in95 mm of precipitation in a typical July.
- Record high
- 99°37° (2011)
- Record low
- 44°7° (2002)
- Heating degree days
- 16
- Cooling degree days
- 171
Penn Yan in August
Highs average 78°25° and lows 59°15°, with 3.5 in89 mm of precipitation in a typical August.
- Record high
- 97°36° (2001)
- Record low
- 40°4° (1982)
- Heating degree days
- 27
- Cooling degree days
- 132
Penn Yan in September
Highs average 71°22° and lows 52°11°, with 3.3 in83 mm of precipitation in a typical September.
- Record high
- 95°35° (2007)
- Record low
- 30°−1° (1991)
- Heating degree days
- 155
- Cooling degree days
- 45
Penn Yan in OctoberThis month
Highs average 59°15° and lows 41°5°, with 3.8 in97 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 86°30° (2007)
- Record low
- 21°−6° (1969)
- Heating degree days
- 471
- Cooling degree days
- 3
Penn Yan in November
Highs average 46°8° and lows 32°0°, with 2.6 in65 mm of precipitation and 5 in12 cm of snow in a typical November.
- Record high
- 77°25° (1982)
- Record low
- 4°−16° (2018)
- Heating degree days
- 782
- Cooling degree days
- 0
Penn Yan in December
Highs average 36°2° and lows 23°−5°, with 2.3 in59 mm of precipitation and 10 in26 cm of snow in a typical December.
- Record high
- 70°21° (1998)
- Record low
- −12°−24° (1980)
- Heating degree days
- 1104
- Cooling degree days
- 0