Harmony weather by month
What a typical year looks like in Harmony, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Preston, 14 km from Harmony; records cover 1952–2026.
The year at a glance
- Precipitation a year
- 36.8 in934 mm
- Snow a year
- 42 in107 cm
- Last spring freeze
- May 13
- First fall freeze
- Sep 29
- Heating degree days
- 8,153
- Cooling degree days
- 452
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
Harmony in January
Highs average 24°−5° and lows 4°−15°, with 1.1 in28 mm of precipitation and 11 in28 cm of snow in a typical January.
- Record high
- 58°14° (2025)
- Record low
- −44°−42° (2019)
- Heating degree days
- 1585
- Cooling degree days
- 0
Harmony in February
Highs average 28°−2° and lows 8°−13°, with 1.2 in30 mm of precipitation and 8 in21 cm of snow in a typical February.
- Record high
- 70°21° (2024)
- Record low
- −45°−43° (1996)
- Heating degree days
- 1313
- Cooling degree days
- 0
Harmony in March
Highs average 41°5° and lows 21°−6°, with 2 in51 mm of precipitation and 8 in19 cm of snow in a typical March.
- Record high
- 83°28° (2025)
- Record low
- −35°−37° (1962)
- Heating degree days
- 1062
- Cooling degree days
- 0
Harmony in April
Highs average 55°13° and lows 32°0°, with 3.8 in98 mm of precipitation and 2.5 in6.4 cm of snow in a typical April.
- Record high
- 91°33° (1980)
- Record low
- −8°−22° (1982)
- Heating degree days
- 640
- Cooling degree days
- 2
Harmony in May
Highs average 68°20° and lows 44°7°, with 4.5 in115 mm of precipitation and 0.3 in0.8 cm of snow in a typical May.
- Record high
- 94°34° (2013)
- Record low
- 18°−8° (1966)
- Heating degree days
- 311
- Cooling degree days
- 22
Harmony in June
Highs average 78°25° and lows 54°12°, with 6 in151 mm of precipitation in a typical June.
- Record high
- 100°38° (1985)
- Record low
- 31°−1° (1987)
- Heating degree days
- 72
- Cooling degree days
- 97
Harmony in July
Highs average 81°27° and lows 58°15°, with 4.2 in106 mm of precipitation in a typical July.
- Record high
- 101°38° (1964)
- Record low
- 35°2° (1988)
- Heating degree days
- 22
- Cooling degree days
- 166
Harmony in August
Highs average 79°26° and lows 56°13°, with 4.3 in109 mm of precipitation in a typical August.
- Record high
- 101°38° (1964)
- Record low
- 30°−1° (1967)
- Heating degree days
- 41
- Cooling degree days
- 118
Harmony in September
Highs average 73°23° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical September.
- Record high
- 98°37° (1955)
- Record low
- 19°−7° (1967)
- Heating degree days
- 196
- Cooling degree days
- 43
Harmony in OctoberThis month
Highs average 59°15° and lows 35°1°, with 2.7 in69 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 92°33° (1976)
- Record low
- 7°−14° (2022)
- Heating degree days
- 571
- Cooling degree days
- 4
Harmony in November
Highs average 43°6° and lows 23°−5°, with 1.9 in48 mm of precipitation and 2.6 in6.6 cm of snow in a typical November.
- Record high
- 76°24° (1999)
- Record low
- −19°−28° (1977)
- Heating degree days
- 962
- Cooling degree days
- 0
Harmony in December
Highs average 29°−1° and lows 12°−11°, with 1.4 in37 mm of precipitation and 10 in25 cm of snow in a typical December.
- Record high
- 63°17° (1982)
- Record low
- −35°−37° (1983)
- Heating degree days
- 1378
- Cooling degree days
- 0