Lebanon weather by month
What a typical year looks like in Lebanon, Tennessee: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at LEBANON, 4 km from Lebanon; records cover 1902–2026.
The year at a glance
- Precipitation a year
- 54.5 in1383 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 10
- First fall freeze
- Oct 25
- Heating degree days
- 3,802
- Cooling degree days
- 1,670
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 98°37° (cooling, 1%).
Month by month
Lebanon in January
Highs average 47°9° and lows 28°−2°, with 4.7 in119 mm of precipitation in a typical January.
- Record high
- 77°25° (1933)
- Record low
- −20°−29° (1963)
- Heating degree days
- 849
- Cooling degree days
- 0
Lebanon in February
Highs average 52°11° and lows 30°−1°, with 4.9 in125 mm of precipitation in a typical February.
- Record high
- 82°28° (1962)
- Record low
- −9°−23° (1979)
- Heating degree days
- 674
- Cooling degree days
- 0
Lebanon in March
Highs average 61°16° and lows 38°3°, with 5 in126 mm of precipitation in a typical March.
- Record high
- 89°32° (1904)
- Record low
- −2°−19° (1980)
- Heating degree days
- 497
- Cooling degree days
- 7
Lebanon in April
Highs average 71°22° and lows 46°8°, with 4.9 in125 mm of precipitation in a typical April.
- Record high
- 92°33° (1925)
- Record low
- 19°−7° (1923)
- Heating degree days
- 232
- Cooling degree days
- 40
Lebanon in May
Highs average 79°26° and lows 56°13°, with 5.6 in142 mm of precipitation in a typical May.
- Record high
- 96°36° (1914)
- Record low
- 29°−2° (1976)
- Heating degree days
- 67
- Cooling degree days
- 149
Lebanon in June
Highs average 87°31° and lows 65°18°, with 4.5 in114 mm of precipitation in a typical June.
- Record high
- 108°42° (2012)
- Record low
- 38°3° (1966)
- Heating degree days
- 4
- Cooling degree days
- 332
Lebanon in July
Highs average 90°32° and lows 69°21°, with 4.8 in123 mm of precipitation in a typical July.
- Record high
- 110°43° (1930)
- Record low
- 47°8° (1926)
- Heating degree days
- 0
- Cooling degree days
- 456
Lebanon in August
Highs average 90°32° and lows 67°19°, with 3.9 in99 mm of precipitation in a typical August.
- Record high
- 111°44° (1930)
- Record low
- 43°6° (1986)
- Heating degree days
- 0
- Cooling degree days
- 411
Lebanon in September
Highs average 84°29° and lows 60°15°, with 3.9 in98 mm of precipitation in a typical September.
- Record high
- 109°43° (1925)
- Record low
- 33°1° (1983)
- Heating degree days
- 25
- Cooling degree days
- 223
Lebanon in OctoberThis month
Highs average 73°23° and lows 47°8°, with 3.4 in86 mm of precipitation in a typical October.
- Record high
- 98°37° (1931)
- Record low
- 20°−7° (1902)
- Heating degree days
- 211
- Cooling degree days
- 46
Lebanon in November
Highs average 61°16° and lows 37°3°, with 3.7 in94 mm of precipitation in a typical November.
- Record high
- 85°29° (1961)
- Record low
- 4°−16° (1929)
- Heating degree days
- 495
- Cooling degree days
- 5
Lebanon in December
Highs average 51°10° and lows 31°0°, with 5.2 in131 mm of precipitation in a typical December.
- Record high
- 79°26° (1998)
- Record low
- −11°−24° (1989)
- Heating degree days
- 748
- Cooling degree days
- 1