Farnham weather by month
What a typical year looks like in Farnham, New York: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Dunkirk Chautauqua County Airport, 20 km from Farnham; records cover 1945–2026.
The year at a glance
- Precipitation a year
- 33 in838 mm
- Snow a year
- Rare
- Last spring freeze
- May 4
- First fall freeze
- Oct 18
- Heating degree days
- 6,412
- Cooling degree days
- 532
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 0°−18° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Farnham in January
Highs average 34°1° and lows 19°−7°, with 1.7 in42 mm of precipitation in a typical January.
- Record high
- 72°22° (1950)
- Record low
- −16°−27° (2003)
- Heating degree days
- 1186
- Cooling degree days
- 0
Farnham in February
Highs average 35°2° and lows 19°−7°, with 1.2 in31 mm of precipitation in a typical February.
- Record high
- 74°23° (2017)
- Record low
- −28°−33° (2015)
- Heating degree days
- 1064
- Cooling degree days
- 0
Farnham in March
Highs average 43°6° and lows 25°−4°, with 1.7 in44 mm of precipitation in a typical March.
- Record high
- 81°27° (1998)
- Record low
- −11°−24° (1948)
- Heating degree days
- 961
- Cooling degree days
- 0
Farnham in April
Highs average 55°13° and lows 35°2°, with 2.8 in71 mm of precipitation in a typical April.
- Record high
- 86°30° (2008)
- Record low
- 18°−8° (1997)
- Heating degree days
- 598
- Cooling degree days
- 2
Farnham in May
Highs average 67°19° and lows 46°8°, with 3.1 in78 mm of precipitation in a typical May.
- Record high
- 89°32° (2018)
- Record low
- 27°−3° (2005)
- Heating degree days
- 285
- Cooling degree days
- 26
Farnham in June
Highs average 76°24° and lows 56°13°, with 2.7 in69 mm of precipitation in a typical June.
- Record high
- 94°34° (1949)
- Record low
- 39°4° (1947)
- Heating degree days
- 67
- Cooling degree days
- 100
Farnham in July
Highs average 80°27° and lows 61°16°, with 3.7 in93 mm of precipitation in a typical July.
- Record high
- 99°37° (1949)
- Record low
- 45°7° (2001)
- Heating degree days
- 12
- Cooling degree days
- 188
Farnham in August
Highs average 79°26° and lows 60°16°, with 3.3 in84 mm of precipitation in a typical August.
- Record high
- 96°36° (2012)
- Record low
- 43°6° (1998)
- Heating degree days
- 18
- Cooling degree days
- 153
Farnham in September
Highs average 72°22° and lows 53°12°, with 3.6 in90 mm of precipitation in a typical September.
- Record high
- 96°36° (1953)
- Record low
- 32°0° (2000)
- Heating degree days
- 121
- Cooling degree days
- 55
Farnham in OctoberThis month
Highs average 61°16° and lows 44°6°, with 3.9 in98 mm of precipitation in a typical October.
- Record high
- 87°31° (1951)
- Record low
- 22°−6° (2002)
- Heating degree days
- 404
- Cooling degree days
- 8
Farnham in November
Highs average 49°10° and lows 34°1°, with 3.1 in78 mm of precipitation in a typical November.
- Record high
- 85°29° (2024)
- Record low
- 3°−16° (1951)
- Heating degree days
- 698
- Cooling degree days
- 0
Farnham in December
Highs average 39°4° and lows 27°−3°, with 2.4 in60 mm of precipitation in a typical December.
- Record high
- 71°22° (1998)
- Record low
- −12°−24° (1945)
- Heating degree days
- 998
- Cooling degree days
- 0