Morristown weather by month
What a typical year looks like in Morristown, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Waseca Southern Research And Outreach Center, 18 km from Morristown; records cover 1914–2026.
The year at a glance
- Precipitation a year
- 37.9 in963 mm
- Snow a year
- 52 in133 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Sep 29
- Heating degree days
- 8,009
- Cooling degree days
- 625
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Morristown in January
Highs average 22°−6° and lows 5°−15°, with 1.3 in32 mm of precipitation and 11 in27 cm of snow in a typical January.
- Record high
- 62°17° (1944)
- Record low
- −37°−38° (1924)
- Heating degree days
- 1604
- Cooling degree days
- 0
Morristown in February
Highs average 26°−3° and lows 9°−13°, with 1.2 in30 mm of precipitation and 11 in27 cm of snow in a typical February.
- Record high
- 69°21° (2024)
- Record low
- −35°−37° (1996)
- Heating degree days
- 1328
- Cooling degree days
- 0
Morristown in March
Highs average 39°4° and lows 22°−5°, with 2.3 in57 mm of precipitation and 9 in23 cm of snow in a typical March.
- Record high
- 86°30° (2025)
- Record low
- −29°−34° (2019)
- Heating degree days
- 1064
- Cooling degree days
- 0
Morristown in April
Highs average 55°13° and lows 35°2°, with 3.3 in84 mm of precipitation and 3 in8 cm of snow in a typical April.
- Record high
- 92°33° (1980)
- Record low
- −3°−19° (1924)
- Heating degree days
- 602
- Cooling degree days
- 3
Morristown in May
Highs average 68°20° and lows 48°9°, with 4.5 in114 mm of precipitation and 0.4 in1 cm of snow in a typical May.
- Record high
- 106°41° (1934)
- Record low
- 19°−7° (1967)
- Heating degree days
- 259
- Cooling degree days
- 41
Morristown in June
Highs average 78°26° and lows 59°15°, with 5.4 in137 mm of precipitation in a typical June.
- Record high
- 105°41° (1934)
- Record low
- 31°−1° (1916)
- Heating degree days
- 46
- Cooling degree days
- 150
Morristown in July
Highs average 81°27° and lows 61°16°, with 4.9 in125 mm of precipitation in a typical July.
- Record high
- 106°41° (1936)
- Record low
- 39°4° (1917)
- Heating degree days
- 12
- Cooling degree days
- 209
Morristown in August
Highs average 79°26° and lows 59°15°, with 4.8 in122 mm of precipitation in a typical August.
- Record high
- 103°39° (1988)
- Record low
- 34°1° (1934)
- Heating degree days
- 26
- Cooling degree days
- 151
Morristown in September
Highs average 73°23° and lows 50°10°, with 4.1 in105 mm of precipitation in a typical September.
- Record high
- 100°38° (1922)
- Record low
- 20°−7° (1939)
- Heating degree days
- 164
- Cooling degree days
- 64
Morristown in OctoberThis month
Highs average 59°15° and lows 37°3°, with 2.8 in70 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 93°34° (1997)
- Record low
- −1°−18° (1925)
- Heating degree days
- 540
- Cooling degree days
- 7
Morristown in November
Highs average 41°5° and lows 24°−4°, with 1.9 in48 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 80°27° (2006)
- Record low
- −21°−29° (1977)
- Heating degree days
- 963
- Cooling degree days
- 0
Morristown in December
Highs average 28°−2° and lows 12°−11°, with 1.5 in38 mm of precipitation and 12 in30 cm of snow in a typical December.
- Record high
- 68°20° (1998)
- Record low
- −35°−37° (1983)
- Heating degree days
- 1401
- Cooling degree days
- 0