Cottage Grove weather by month
What a typical year looks like in Cottage Grove, Tennessee: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Dresden, 23 km from Cottage Grove; records cover 1957–2026.
The year at a glance
- Precipitation a year
- 53.6 in1360 mm
- Snow a year
- 0.4 in1 cm
- Last spring freeze
- Apr 2
- First fall freeze
- Oct 28
- Heating degree days
- 3,900
- Cooling degree days
- 1,580
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 10°−12° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Cottage Grove in January
Highs average 46°8° and lows 27°−3°, with 3.9 in99 mm of precipitation in a typical January.
- Record high
- 75°24° (1972)
- Record low
- −17°−27° (1963)
- Heating degree days
- 887
- Cooling degree days
- 0
Cottage Grove in February
Highs average 50°10° and lows 30°−1°, with 4.8 in122 mm of precipitation and 0.3 in0.8 cm of snow in a typical February.
- Record high
- 81°27° (1962)
- Record low
- −5°−21° (1958)
- Heating degree days
- 691
- Cooling degree days
- 0
Cottage Grove in March
Highs average 60°15° and lows 38°3°, with 4.8 in123 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 88°31° (1963)
- Record low
- 0°−18° (1960)
- Heating degree days
- 508
- Cooling degree days
- 7
Cottage Grove in April
Highs average 70°21° and lows 47°8°, with 5.1 in129 mm of precipitation in a typical April.
- Record high
- 90°32° (1963)
- Record low
- 22°−6° (2007)
- Heating degree days
- 230
- Cooling degree days
- 38
Cottage Grove in May
Highs average 78°25° and lows 57°14°, with 5.9 in150 mm of precipitation in a typical May.
- Record high
- 96°36° (1987)
- Record low
- 33°1° (1966)
- Heating degree days
- 61
- Cooling degree days
- 137
Cottage Grove in June
Highs average 85°30° and lows 65°19°, with 4.6 in117 mm of precipitation in a typical June.
- Record high
- 104°40° (2012)
- Record low
- 43°6° (1966)
- Heating degree days
- 4
- Cooling degree days
- 314
Cottage Grove in July
Highs average 88°31° and lows 69°21°, with 4.5 in113 mm of precipitation in a typical July.
- Record high
- 103°39° (2012)
- Record low
- 48°9° (1971)
- Heating degree days
- 0
- Cooling degree days
- 426
Cottage Grove in August
Highs average 88°31° and lows 68°20°, with 3.2 in81 mm of precipitation in a typical August.
- Record high
- 104°40° (1964)
- Record low
- 47°8° (1964)
- Heating degree days
- 1
- Cooling degree days
- 397
Cottage Grove in September
Highs average 82°28° and lows 60°16°, with 3.9 in99 mm of precipitation in a typical September.
- Record high
- 101°38° (1960)
- Record low
- 35°2° (1967)
- Heating degree days
- 24
- Cooling degree days
- 213
Cottage Grove in OctoberThis month
Highs average 72°22° and lows 48°9°, with 3.6 in92 mm of precipitation in a typical October.
- Record high
- 94°34° (2019)
- Record low
- 23°−5° (1981)
- Heating degree days
- 206
- Cooling degree days
- 44
Cottage Grove in November
Highs average 59°15° and lows 38°3°, with 4.3 in109 mm of precipitation in a typical November.
- Record high
- 87°31° (1984)
- Record low
- 10°−12° (1964)
- Heating degree days
- 502
- Cooling degree days
- 4
Cottage Grove in December
Highs average 49°9° and lows 31°−1°, with 5 in126 mm of precipitation in a typical December.
- Record high
- 78°26° (1982)
- Record low
- −11°−24° (1989)
- Heating degree days
- 786
- Cooling degree days
- 0