Rolla weather by month
What a typical year looks like in Rolla, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Vichy Rolla National Airport, 21 km from Rolla; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 43.1 in1094 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 9
- First fall freeze
- Oct 23
- Heating degree days
- 4,721
- Cooling degree days
- 1,307
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Rolla in January
Highs average 41°5° and lows 22°−5°, with 2.2 in56 mm of precipitation in a typical January.
- Record high
- 76°24° (1950)
- Record low
- −16°−27° (1982)
- Heating degree days
- 1035
- Cooling degree days
- 0
Rolla in February
Highs average 46°8° and lows 26°−3°, with 2.1 in52 mm of precipitation in a typical February.
- Record high
- 82°28° (1972)
- Record low
- −29°−34° (1899)
- Heating degree days
- 810
- Cooling degree days
- 0
Rolla in March
Highs average 56°13° and lows 35°2°, with 3.4 in86 mm of precipitation in a typical March.
- Record high
- 91°33° (2026)
- Record low
- −7°−22° (1960)
- Heating degree days
- 606
- Cooling degree days
- 5
Rolla in April
Highs average 67°19° and lows 45°7°, with 4.7 in120 mm of precipitation in a typical April.
- Record high
- 94°34° (1899)
- Record low
- 17°−8° (1899)
- Heating degree days
- 300
- Cooling degree days
- 24
Rolla in May
Highs average 75°24° and lows 54°12°, with 5.4 in136 mm of precipitation in a typical May.
- Record high
- 98°37° (2012)
- Record low
- 25°−4° (1903)
- Heating degree days
- 107
- Cooling degree days
- 96
Rolla in June
Highs average 83°28° and lows 63°17°, with 4.5 in113 mm of precipitation in a typical June.
- Record high
- 106°41° (2012)
- Record low
- 39°4° (1903)
- Heating degree days
- 11
- Cooling degree days
- 254
Rolla in July
Highs average 88°31° and lows 67°19°, with 4.4 in113 mm of precipitation in a typical July.
- Record high
- 113°45° (1954)
- Record low
- 46°8° (1898)
- Heating degree days
- 0
- Cooling degree days
- 386
Rolla in August
Highs average 87°31° and lows 66°19°, with 3.7 in93 mm of precipitation in a typical August.
- Record high
- 107°42° (2007)
- Record low
- 45°7° (2004)
- Heating degree days
- 2
- Cooling degree days
- 352
Rolla in September
Highs average 79°26° and lows 58°14°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 105°41° (1899)
- Record low
- 31°−1° (1899)
- Heating degree days
- 56
- Cooling degree days
- 155
Rolla in OctoberThis month
Highs average 68°20° and lows 46°8°, with 3.2 in82 mm of precipitation in a typical October.
- Record high
- 95°35° (1899)
- Record low
- 20°−7° (2022)
- Heating degree days
- 277
- Cooling degree days
- 32
Rolla in November
Highs average 55°13° and lows 35°2°, with 3.5 in88 mm of precipitation in a typical November.
- Record high
- 85°29° (1955)
- Record low
- 3°−16° (1959)
- Heating degree days
- 601
- Cooling degree days
- 3
Rolla in December
Highs average 44°7° and lows 27°−3°, with 2.3 in59 mm of precipitation in a typical December.
- Record high
- 77°25° (1991)
- Record low
- −25°−32° (1901)
- Heating degree days
- 916
- Cooling degree days
- 0