St. Catharine weather by month
What a typical year looks like in St. Catharine, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Chillicothe 22 Ene, 15 km from St. Catharine; records cover 2005–2026.
The year at a glance
- Precipitation a year
- 40.1 in1018 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 18
- First fall freeze
- Oct 22
- Heating degree days
- 5,564
- Cooling degree days
- 1,052
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −3°−19° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
St. Catharine in January
Highs average 35°2° and lows 18°−8°, with 1.4 in36 mm of precipitation in a typical January.
- Record high
- 69°21° (2013)
- Record low
- −16°−27° (2024)
- Heating degree days
- 1196
- Cooling degree days
- 0
St. Catharine in February
Highs average 40°5° and lows 22°−6°, with 1.6 in41 mm of precipitation in a typical February.
- Record high
- 77°25° (2024)
- Record low
- −15°−26° (2011)
- Heating degree days
- 948
- Cooling degree days
- 0
St. Catharine in March
Highs average 53°12° and lows 32°0°, with 2.8 in71 mm of precipitation in a typical March.
- Record high
- 91°33° (2026)
- Record low
- −10°−23° (2014)
- Heating degree days
- 700
- Cooling degree days
- 2
St. Catharine in April
Highs average 64°18° and lows 42°6°, with 3.6 in91 mm of precipitation in a typical April.
- Record high
- 87°31° (2006)
- Record low
- 7°−14° (2018)
- Heating degree days
- 372
- Cooling degree days
- 10
St. Catharine in May
Highs average 73°23° and lows 53°11°, with 5.2 in133 mm of precipitation in a typical May.
- Record high
- 94°34° (2018)
- Record low
- 32°0° (2011)
- Heating degree days
- 144
- Cooling degree days
- 68
St. Catharine in June
Highs average 82°28° and lows 62°17°, with 5.1 in129 mm of precipitation in a typical June.
- Record high
- 102°39° (2012)
- Record low
- 43°6° (2013)
- Heating degree days
- 10
- Cooling degree days
- 219
St. Catharine in July
Highs average 85°30° and lows 66°19°, with 5 in127 mm of precipitation in a typical July.
- Record high
- 104°40° (2012)
- Record low
- 48°9° (2013)
- Heating degree days
- 3
- Cooling degree days
- 325
St. Catharine in August
Highs average 84°29° and lows 64°18°, with 4.1 in104 mm of precipitation in a typical August.
- Record high
- 101°38° (2013)
- Record low
- 45°7° (2025)
- Heating degree days
- 4
- Cooling degree days
- 284
St. Catharine in September
Highs average 77°25° and lows 55°13°, with 4.2 in106 mm of precipitation in a typical September.
- Record high
- 100°38° (2026)
- Record low
- 34°1° (2012)
- Heating degree days
- 82
- Cooling degree days
- 122
St. Catharine in OctoberThis month
Highs average 65°18° and lows 44°6°, with 3.1 in78 mm of precipitation in a typical October.
- Record high
- 94°34° (2006)
- Record low
- 18°−8° (2022)
- Heating degree days
- 353
- Cooling degree days
- 21
St. Catharine in November
Highs average 51°11° and lows 32°0°, with 2.4 in60 mm of precipitation in a typical November.
- Record high
- 78°26° (2005)
- Record low
- 3°−16° (2019)
- Heating degree days
- 697
- Cooling degree days
- 1
St. Catharine in December
Highs average 39°4° and lows 23°−5°, with 1.7 in42 mm of precipitation in a typical December.
- Record high
- 75°24° (2021)
- Record low
- −15°−26° (2013)
- Heating degree days
- 1055
- Cooling degree days
- 0