Rock Creek weather by month
What a typical year looks like in Rock Creek, Ohio: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Ashtabula County Airport, 19 km from Rock Creek; records cover 1998–2026.
The year at a glance
- Precipitation a year
- 37.1 in942 mm
- Snow a year
- Rare
- Last spring freeze
- May 5
- First fall freeze
- Oct 25
- Heating degree days
- 6,372
- Cooling degree days
- 523
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Rock Creek in January
Highs average 33°1° and lows 19°−7°, with 1.9 in48 mm of precipitation in a typical January.
- Record high
- 72°22° (2005)
- Record low
- −19°−28° (2026)
- Heating degree days
- 1204
- Cooling degree days
- 0
Rock Creek in February
Highs average 36°2° and lows 19°−7°, with 1.7 in43 mm of precipitation in a typical February.
- Record high
- 74°23° (2017)
- Record low
- −29°−34° (2015)
- Heating degree days
- 1050
- Cooling degree days
- 0
Rock Creek in March
Highs average 44°7° and lows 26°−3°, with 2.4 in60 mm of precipitation in a typical March.
- Record high
- 81°27° (2012)
- Record low
- −10°−23° (2014)
- Heating degree days
- 922
- Cooling degree days
- 0
Rock Creek in April
Highs average 58°14° and lows 36°2°, with 3.4 in85 mm of precipitation in a typical April.
- Record high
- 89°32° (2002)
- Record low
- 17°−8° (2016)
- Heating degree days
- 547
- Cooling degree days
- 4
Rock Creek in May
Highs average 69°20° and lows 46°8°, with 3.3 in84 mm of precipitation in a typical May.
- Record high
- 90°32° (2011)
- Record low
- 27°−3° (2010)
- Heating degree days
- 260
- Cooling degree days
- 31
Rock Creek in June
Highs average 77°25° and lows 55°13°, with 3.7 in93 mm of precipitation in a typical June.
- Record high
- 95°35° (2012)
- Record low
- 36°2° (2009)
- Heating degree days
- 68
- Cooling degree days
- 105
Rock Creek in July
Highs average 81°27° and lows 60°15°, with 4.3 in108 mm of precipitation in a typical July.
- Record high
- 97°36° (2002)
- Record low
- 43°6° (2001)
- Heating degree days
- 16
- Cooling degree days
- 183
Rock Creek in August
Highs average 79°26° and lows 58°15°, with 3.6 in91 mm of precipitation in a typical August.
- Record high
- 96°36° (2002)
- Record low
- 41°5° (2000)
- Heating degree days
- 25
- Cooling degree days
- 139
Rock Creek in September
Highs average 73°23° and lows 52°11°, with 3.9 in98 mm of precipitation in a typical September.
- Record high
- 96°36° (2002)
- Record low
- 31°−1° (1999)
- Heating degree days
- 133
- Cooling degree days
- 53
Rock Creek in OctoberThis month
Highs average 61°16° and lows 42°6°, with 3.7 in93 mm of precipitation in a typical October.
- Record high
- 89°32° (2019)
- Record low
- 24°−4° (2000)
- Heating degree days
- 415
- Cooling degree days
- 8
Rock Creek in November
Highs average 49°9° and lows 34°1°, with 3.1 in79 mm of precipitation in a typical November.
- Record high
- 81°27° (2003)
- Record low
- 10°−12° (2014)
- Heating degree days
- 711
- Cooling degree days
- 0
Rock Creek in December
Highs average 38°3° and lows 26°−3°, with 2.3 in59 mm of precipitation in a typical December.
- Record high
- 72°22° (2001)
- Record low
- −2°−19° (2004)
- Heating degree days
- 1021
- Cooling degree days
- 0