Hartsburg weather by month
What a typical year looks like in Hartsburg, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Columbia Regional Airport, 16 km from Hartsburg; records cover 1889–2026.
The year at a glance
- Precipitation a year
- 41.4 in1052 mm
- Snow a year
- 17 in42 cm
- Last spring freeze
- Apr 8
- First fall freeze
- Oct 22
- Heating degree days
- 4,682
- Cooling degree days
- 1,447
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 2°−17° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Hartsburg in January
Highs average 40°4° and lows 23°−5°, with 2.1 in54 mm of precipitation and 6 in15 cm of snow in a typical January.
- Record high
- 77°25° (1909)
- Record low
- −20°−29° (1912)
- Heating degree days
- 1054
- Cooling degree days
- 0
Hartsburg in February
Highs average 45°7° and lows 26°−3°, with 2.1 in54 mm of precipitation and 5 in12 cm of snow in a typical February.
- Record high
- 82°28° (1972)
- Record low
- −26°−32° (1899)
- Heating degree days
- 819
- Cooling degree days
- 0
Hartsburg in March
Highs average 56°13° and lows 36°2°, with 3 in75 mm of precipitation and 1.5 in3.8 cm of snow in a typical March.
- Record high
- 93°34° (2026)
- Record low
- −9°−23° (1960)
- Heating degree days
- 596
- Cooling degree days
- 5
Hartsburg in April
Highs average 67°20° and lows 46°8°, with 4.9 in124 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 93°34° (1930)
- Record low
- 14°−10° (1920)
- Heating degree days
- 285
- Cooling degree days
- 27
Hartsburg in May
Highs average 76°24° and lows 56°13°, with 4.8 in121 mm of precipitation in a typical May.
- Record high
- 101°38° (1934)
- Record low
- 28°−2° (1907)
- Heating degree days
- 90
- Cooling degree days
- 114
Hartsburg in June
Highs average 85°29° and lows 65°18°, with 4.2 in107 mm of precipitation in a typical June.
- Record high
- 107°42° (2012)
- Record low
- 40°4° (1993)
- Heating degree days
- 6
- Cooling degree days
- 294
Hartsburg in July
Highs average 89°31° and lows 69°20°, with 4.1 in105 mm of precipitation in a typical July.
- Record high
- 113°45° (1954)
- Record low
- 45°7° (1892)
- Heating degree days
- 0
- Cooling degree days
- 419
Hartsburg in August
Highs average 88°31° and lows 67°19°, with 4.1 in105 mm of precipitation in a typical August.
- Record high
- 110°43° (1934)
- Record low
- 40°4° (1915)
- Heating degree days
- 1
- Cooling degree days
- 379
Hartsburg in September
Highs average 80°27° and lows 58°15°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 104°40° (1893)
- Record low
- 26°−3° (1895)
- Heating degree days
- 47
- Cooling degree days
- 173
Hartsburg in OctoberThis month
Highs average 68°20° and lows 47°8°, with 3.5 in88 mm of precipitation in a typical October.
- Record high
- 96°36° (1939)
- Record low
- 19°−7° (1895)
- Heating degree days
- 267
- Cooling degree days
- 34
Hartsburg in November
Highs average 55°13° and lows 36°2°, with 2.7 in68 mm of precipitation and 0.8 in2 cm of snow in a typical November.
- Record high
- 84°29° (1915)
- Record low
- −3°−19° (1929)
- Heating degree days
- 592
- Cooling degree days
- 2
Hartsburg in December
Highs average 44°6° and lows 27°−3°, with 2.1 in53 mm of precipitation and 3 in9 cm of snow in a typical December.
- Record high
- 76°24° (1991)
- Record low
- −23°−31° (1901)
- Heating degree days
- 925
- Cooling degree days
- 0