Summersville weather by month
What a typical year looks like in Summersville, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Summersville 3 SE, 5 km from Summersville; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 0 in0 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 9
- First fall freeze
- Oct 21
- Heating degree days
- 4,512
- Cooling degree days
- 1,279
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 4°−16° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Summersville in January
Highs average 43°6° and lows 23°−5°, with — of precipitation in a typical January.
- Record high
- 75°24° (1986)
- Record low
- −19°−28° (1985)
- Heating degree days
- 989
- Cooling degree days
- 0
Summersville in February
Highs average 48°9° and lows 27°−3°, with — of precipitation in a typical February.
- Record high
- 84°29° (2024)
- Record low
- −11°−24° (1981)
- Heating degree days
- 776
- Cooling degree days
- 0
Summersville in March
Highs average 57°14° and lows 35°2°, with — of precipitation in a typical March.
- Record high
- 94°34° (2026)
- Record low
- −2°−19° (1978)
- Heating degree days
- 592
- Cooling degree days
- 3
Summersville in April
Highs average 68°20° and lows 45°7°, with — of precipitation in a typical April.
- Record high
- 90°32° (1987)
- Record low
- 18°−8° (2007)
- Heating degree days
- 285
- Cooling degree days
- 21
Summersville in May
Highs average 76°24° and lows 55°13°, with — of precipitation in a typical May.
- Record high
- 94°34° (2000)
- Record low
- 28°−2° (1966)
- Heating degree days
- 92
- Cooling degree days
- 93
Summersville in June
Highs average 83°28° and lows 63°17°, with — of precipitation in a typical June.
- Record high
- 101°38° (2023)
- Record low
- 40°4° (1972)
- Heating degree days
- 8
- Cooling degree days
- 250
Summersville in July
Highs average 88°31° and lows 67°19°, with — of precipitation in a typical July.
- Record high
- 107°42° (1980)
- Record low
- 44°7° (1972)
- Heating degree days
- 0
- Cooling degree days
- 388
Summersville in August
Highs average 87°30° and lows 65°19°, with — of precipitation in a typical August.
- Record high
- 104°40° (1969)
- Record low
- 39°4° (1986)
- Heating degree days
- 3
- Cooling degree days
- 345
Summersville in September
Highs average 80°27° and lows 57°14°, with — of precipitation in a typical September.
- Record high
- 99°37° (1990)
- Record low
- 30°−1° (1995)
- Heating degree days
- 52
- Cooling degree days
- 148
Summersville in OctoberThis month
Highs average 69°21° and lows 46°8°, with — of precipitation in a typical October.
- Record high
- 96°36° (2004)
- Record low
- 19°−7° (1981)
- Heating degree days
- 263
- Cooling degree days
- 29
Summersville in November
Highs average 57°14° and lows 35°2°, with — of precipitation in a typical November.
- Record high
- 83°28° (1980)
- Record low
- 4°−16° (1976)
- Heating degree days
- 570
- Cooling degree days
- 2
Summersville in December
Highs average 46°8° and lows 27°−3°, with — of precipitation in a typical December.
- Record high
- 79°26° (2025)
- Record low
- −10°−23° (1976)
- Heating degree days
- 882
- Cooling degree days
- 0