Rock Creek weather by month
What a typical year looks like in Rock Creek, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Grantsburg, 17 km from Rock Creek; records cover 1950–2026.
The year at a glance
- Precipitation a year
- 33.8 in858 mm
- Snow a year
- 52 in133 cm
- Last spring freeze
- May 13
- First fall freeze
- Sep 29
- Heating degree days
- 8,421
- Cooling degree days
- 479
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −22°−30° (heating, 99%) and 92°34° (cooling, 1%).
Month by month
Rock Creek in January
Highs average 22°−5° and lows 1°−17°, with 0.86 in22 mm of precipitation and 11 in27 cm of snow in a typical January.
- Record high
- 52°11° (2012)
- Record low
- −44°−42° (1965)
- Heating degree days
- 1652
- Cooling degree days
- 0
Rock Creek in February
Highs average 28°−2° and lows 5°−15°, with 0.9 in23 mm of precipitation and 9 in23 cm of snow in a typical February.
- Record high
- 65°18° (2026)
- Record low
- −42°−41° (1996)
- Heating degree days
- 1355
- Cooling degree days
- 0
Rock Creek in March
Highs average 41°5° and lows 18°−8°, with 1.6 in40 mm of precipitation and 8 in21 cm of snow in a typical March.
- Record high
- 82°28° (2007)
- Record low
- −39° (1962)
- Heating degree days
- 1102
- Cooling degree days
- 0
Rock Creek in April
Highs average 56°13° and lows 31°−1°, with 2.9 in72 mm of precipitation and 4 in9 cm of snow in a typical April.
- Record high
- 95°35° (1980)
- Record low
- −2°−19° (1975)
- Heating degree days
- 658
- Cooling degree days
- 1
Rock Creek in May
Highs average 69°21° and lows 44°6°, with 4.1 in103 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 95°35° (1959)
- Record low
- 15°−9° (1967)
- Heating degree days
- 296
- Cooling degree days
- 26
Rock Creek in June
Highs average 78°26° and lows 53°12°, with 4.5 in113 mm of precipitation in a typical June.
- Record high
- 99°37° (2011)
- Record low
- 29°−2° (1964)
- Heating degree days
- 72
- Cooling degree days
- 95
Rock Creek in July
Highs average 82°28° and lows 58°14°, with 4.6 in117 mm of precipitation in a typical July.
- Record high
- 105°41° (2006)
- Record low
- 36°2° (1952)
- Heating degree days
- 18
- Cooling degree days
- 179
Rock Creek in August
Highs average 80°27° and lows 56°13°, with 4.5 in113 mm of precipitation in a typical August.
- Record high
- 100°38° (2006)
- Record low
- 32°0° (1970)
- Heating degree days
- 35
- Cooling degree days
- 131
Rock Creek in September
Highs average 72°22° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical September.
- Record high
- 97°36° (2023)
- Record low
- 21°−6° (1956)
- Heating degree days
- 199
- Cooling degree days
- 43
Rock Creek in OctoberThis month
Highs average 58°14° and lows 35°2°, with 3.2 in81 mm of precipitation and 0.5 in1.3 cm of snow in a typical October.
- Record high
- 88°31° (2011)
- Record low
- 7°−14° (1952)
- Heating degree days
- 583
- Cooling degree days
- 4
Rock Creek in November
Highs average 41°5° and lows 22°−5°, with 1.8 in46 mm of precipitation and 8 in21 cm of snow in a typical November.
- Record high
- 74°23° (2020)
- Record low
- −24°−31° (1964)
- Heating degree days
- 1005
- Cooling degree days
- 0
Rock Creek in December
Highs average 27°−3° and lows 10°−12°, with 1.4 in35 mm of precipitation and 12 in30 cm of snow in a typical December.
- Record high
- 60°16° (1982)
- Record low
- −40° (1968)
- Heating degree days
- 1446
- Cooling degree days
- 0