Williston weather by month
What a typical year looks like in Williston, Ohio: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at TOLEDO EXECUTIVE AIRPORT, 12 km from Williston; records cover 1939–2026.
The year at a glance
- Precipitation a year
- 32.4 in822 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 23
- First fall freeze
- Oct 23
- Heating degree days
- 5,840
- Cooling degree days
- 929
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 94°34° (cooling, 1%).
Month by month
Williston in January
Highs average 34°1° and lows 20°−7°, with 1.8 in45 mm of precipitation in a typical January.
- Record high
- 71°22° (1950)
- Record low
- −16°−27° (2009)
- Heating degree days
- 1182
- Cooling degree days
- 0
Williston in February
Highs average 36°2° and lows 22°−6°, with 1.8 in44 mm of precipitation in a typical February.
- Record high
- 74°23° (2017)
- Record low
- −11°−24° (1951)
- Heating degree days
- 1005
- Cooling degree days
- 0
Williston in March
Highs average 47°8° and lows 29°−1°, with 2.3 in59 mm of precipitation in a typical March.
- Record high
- 86°30° (2012)
- Record low
- −10°−23° (1948)
- Heating degree days
- 840
- Cooling degree days
- 1
Williston in April
Highs average 60°15° and lows 40°4°, with 3.3 in83 mm of precipitation in a typical April.
- Record high
- 89°32° (1942)
- Record low
- 16°−9° (1944)
- Heating degree days
- 467
- Cooling degree days
- 6
Williston in May
Highs average 71°22° and lows 51°11°, with 3.5 in89 mm of precipitation in a typical May.
- Record high
- 96°36° (2012)
- Record low
- 26°−3° (2020)
- Heating degree days
- 178
- Cooling degree days
- 60
Williston in June
Highs average 81°27° and lows 61°16°, with 3.2 in82 mm of precipitation in a typical June.
- Record high
- 103°39° (2012)
- Record low
- 38°3° (1945)
- Heating degree days
- 22
- Cooling degree days
- 200
Williston in July
Highs average 85°29° and lows 65°18°, with 3.2 in82 mm of precipitation in a typical July.
- Record high
- 105°41° (2011)
- Record low
- 44°7° (1945)
- Heating degree days
- 1
- Cooling degree days
- 302
Williston in August
Highs average 82°28° and lows 63°17°, with 3.5 in89 mm of precipitation in a typical August.
- Record high
- 101°38° (1951)
- Record low
- 41°5° (1946)
- Heating degree days
- 4
- Cooling degree days
- 247
Williston in September
Highs average 76°24° and lows 55°13°, with 3.1 in78 mm of precipitation in a typical September.
- Record high
- 100°38° (1939)
- Record low
- 29°−2° (1942)
- Heating degree days
- 79
- Cooling degree days
- 97
Williston in OctoberThis month
Highs average 64°18° and lows 45°7°, with 2.4 in60 mm of precipitation in a typical October.
- Record high
- 92°33° (1939)
- Record low
- 21°−6° (1952)
- Heating degree days
- 354
- Cooling degree days
- 16
Williston in November
Highs average 50°10° and lows 34°1°, with 2.3 in58 mm of precipitation in a typical November.
- Record high
- 80°27° (1950)
- Record low
- 2°−17° (1947)
- Heating degree days
- 686
- Cooling degree days
- 0
Williston in December
Highs average 38°3° and lows 26°−3°, with 2.1 in53 mm of precipitation in a typical December.
- Record high
- 70°21° (1998)
- Record low
- −13°−25° (1944)
- Heating degree days
- 1022
- Cooling degree days
- 0