Unicoi weather by month
What a typical year looks like in Unicoi, Tennessee: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at ELIZABETHTON, 16 km from Unicoi; records cover 1895–2026.
The year at a glance
- Precipitation a year
- 48 in1220 mm
- Snow a year
- 6 in15 cm
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 24
- Heating degree days
- 4,302
- Cooling degree days
- 1,009
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 93°34° (cooling, 1%).
Month by month
Unicoi in January
Highs average 46°8° and lows 26°−4°, with 3.8 in96 mm of precipitation and 1.9 in4.8 cm of snow in a typical January.
- Record high
- 78°26° (1943)
- Record low
- −21°−29° (1985)
- Heating degree days
- 904
- Cooling degree days
- 0
Unicoi in February
Highs average 50°10° and lows 28°−2°, with 3.8 in96 mm of precipitation and 2.1 in5.3 cm of snow in a typical February.
- Record high
- 82°28° (1944)
- Record low
- −17°−27° (1899)
- Heating degree days
- 721
- Cooling degree days
- 0
Unicoi in March
Highs average 59°15° and lows 34°1°, with 4 in101 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 84°29° (1907)
- Record low
- −2°−19° (1943)
- Heating degree days
- 573
- Cooling degree days
- 1
Unicoi in April
Highs average 69°21° and lows 42°5°, with 3.8 in97 mm of precipitation in a typical April.
- Record high
- 93°34° (1896)
- Record low
- 20°−7° (1907)
- Heating degree days
- 299
- Cooling degree days
- 13
Unicoi in May
Highs average 77°25° and lows 52°11°, with 4.4 in113 mm of precipitation in a typical May.
- Record high
- 97°36° (1895)
- Record low
- 28°−2° (1906)
- Heating degree days
- 105
- Cooling degree days
- 80
Unicoi in June
Highs average 83°28° and lows 60°15°, with 5.2 in131 mm of precipitation in a typical June.
- Record high
- 102°39° (1895)
- Record low
- 39°4° (1984)
- Heating degree days
- 12
- Cooling degree days
- 199
Unicoi in July
Highs average 86°30° and lows 64°18°, with 5.9 in149 mm of precipitation in a typical July.
- Record high
- 105°41° (1898)
- Record low
- 46°8° (1988)
- Heating degree days
- 1
- Cooling degree days
- 295
Unicoi in August
Highs average 85°29° and lows 62°17°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 99°37° (1900)
- Record low
- 43°6° (1986)
- Heating degree days
- 1
- Cooling degree days
- 270
Unicoi in September
Highs average 80°27° and lows 56°13°, with 3 in76 mm of precipitation in a typical September.
- Record high
- 98°37° (1897)
- Record low
- 31°−1° (1899)
- Heating degree days
- 42
- Cooling degree days
- 128
Unicoi in OctoberThis month
Highs average 70°21° and lows 44°7°, with 2.8 in71 mm of precipitation in a typical October.
- Record high
- 92°33° (1898)
- Record low
- 22°−6° (1895)
- Heating degree days
- 269
- Cooling degree days
- 21
Unicoi in November
Highs average 59°15° and lows 33°1°, with 3.4 in85 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 87°31° (1895)
- Record low
- 10°−12° (2014)
- Heating degree days
- 574
- Cooling degree days
- 2
Unicoi in December
Highs average 50°10° and lows 29°−2°, with 3.9 in99 mm of precipitation and 1.8 in4.6 cm of snow in a typical December.
- Record high
- 80°27° (1895)
- Record low
- −12°−24° (1901)
- Heating degree days
- 801
- Cooling degree days
- 0