Harrison weather by month
What a typical year looks like in Harrison, Ohio: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at FAIRFIELD, 20 km from Harrison; records cover 1913–2026.
The year at a glance
- Precipitation a year
- 45 in1144 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 11
- First fall freeze
- Oct 22
- Heating degree days
- 5,231
- Cooling degree days
- 1,117
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 1°−17° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Harrison in January
Highs average 38°3° and lows 21°−6°, with 3.4 in86 mm of precipitation in a typical January.
- Record high
- 77°25° (1943)
- Record low
- −23°−31° (1994)
- Heating degree days
- 1100
- Cooling degree days
- 0
Harrison in February
Highs average 42°6° and lows 23°−5°, with 3 in75 mm of precipitation in a typical February.
- Record high
- 78°26° (2017)
- Record low
- −16°−27° (2015)
- Heating degree days
- 904
- Cooling degree days
- 0
Harrison in March
Highs average 53°12° and lows 31°−1°, with 3.9 in100 mm of precipitation in a typical March.
- Record high
- 89°32° (2026)
- Record low
- −8°−22° (1980)
- Heating degree days
- 719
- Cooling degree days
- 2
Harrison in April
Highs average 66°19° and lows 41°5°, with 4.9 in125 mm of precipitation in a typical April.
- Record high
- 93°34° (1925)
- Record low
- 13°−11° (1972)
- Heating degree days
- 366
- Cooling degree days
- 12
Harrison in May
Highs average 75°24° and lows 52°11°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 99°37° (1921)
- Record low
- 27°−3° (1913)
- Heating degree days
- 129
- Cooling degree days
- 82
Harrison in June
Highs average 84°29° and lows 61°16°, with 4.4 in111 mm of precipitation in a typical June.
- Record high
- 106°41° (1934)
- Record low
- 31°−1° (2013)
- Heating degree days
- 15
- Cooling degree days
- 229
Harrison in July
Highs average 87°31° and lows 65°18°, with 3.9 in100 mm of precipitation in a typical July.
- Record high
- 111°44° (1934)
- Record low
- 45°7° (1972)
- Heating degree days
- 0
- Cooling degree days
- 340
Harrison in August
Highs average 87°30° and lows 63°17°, with 3.5 in88 mm of precipitation in a typical August.
- Record high
- 107°42° (1936)
- Record low
- 39°4° (1915)
- Heating degree days
- 2
- Cooling degree days
- 301
Harrison in September
Highs average 80°27° and lows 55°13°, with 3.3 in83 mm of precipitation in a typical September.
- Record high
- 103°39° (1953)
- Record low
- 27°−3° (1942)
- Heating degree days
- 60
- Cooling degree days
- 133
Harrison in OctoberThis month
Highs average 67°20° and lows 43°6°, with 3.3 in84 mm of precipitation in a typical October.
- Record high
- 96°36° (1920)
- Record low
- 17°−8° (1925)
- Heating degree days
- 323
- Cooling degree days
- 18
Harrison in November
Highs average 54°12° and lows 33°0°, with 3.2 in80 mm of precipitation in a typical November.
- Record high
- 83°28° (2016)
- Record low
- 0°−18° (1929)
- Heating degree days
- 657
- Cooling degree days
- 0
Harrison in December
Highs average 43°6° and lows 26°−3°, with 3.5 in88 mm of precipitation in a typical December.
- Record high
- 75°24° (1982)
- Record low
- −19°−28° (1989)
- Heating degree days
- 956
- Cooling degree days
- 0