Lebanon weather by month
What a typical year looks like in Lebanon, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at LEBANON 2W, 3 km from Lebanon; records cover 1892–2025.
The year at a glance
- Precipitation a year
- 45.9 in1165 mm
- Snow a year
- 8 in21 cm
- Last spring freeze
- Apr 7
- First fall freeze
- Oct 21
- Heating degree days
- 4,617
- Cooling degree days
- 1,315
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 5°−15° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Lebanon in January
Highs average 43°6° and lows 22°−5°, with 2.7 in69 mm of precipitation and 2.9 in7.4 cm of snow in a typical January.
- Record high
- 79°26° (1943)
- Record low
- −21°−29° (1918)
- Heating degree days
- 1012
- Cooling degree days
- 0
Lebanon in February
Highs average 48°9° and lows 25°−4°, with 2.6 in66 mm of precipitation and 1.3 in3.3 cm of snow in a typical February.
- Record high
- 83°28° (2024)
- Record low
- −28°−33° (1899)
- Heating degree days
- 798
- Cooling degree days
- 0
Lebanon in March
Highs average 58°14° and lows 34°1°, with 3.5 in89 mm of precipitation and 1.1 in2.8 cm of snow in a typical March.
- Record high
- 90°32° (1907)
- Record low
- −10°−23° (1943)
- Heating degree days
- 593
- Cooling degree days
- 4
Lebanon in April
Highs average 68°20° and lows 44°7°, with 4.9 in124 mm of precipitation in a typical April.
- Record high
- 93°34° (1915)
- Record low
- 9°−13° (1920)
- Heating degree days
- 297
- Cooling degree days
- 19
Lebanon in May
Highs average 76°24° and lows 54°12°, with 5.9 in150 mm of precipitation in a typical May.
- Record high
- 101°38° (1934)
- Record low
- 26°−3° (1976)
- Heating degree days
- 100
- Cooling degree days
- 101
Lebanon in June
Highs average 84°29° and lows 63°17°, with 4.7 in119 mm of precipitation in a typical June.
- Record high
- 105°41° (1933)
- Record low
- 36°2° (1894)
- Heating degree days
- 7
- Cooling degree days
- 257
Lebanon in July
Highs average 88°31° and lows 67°19°, with 4.1 in104 mm of precipitation in a typical July.
- Record high
- 113°45° (1954)
- Record low
- 43°6° (1972)
- Heating degree days
- 0
- Cooling degree days
- 396
Lebanon in August
Highs average 88°31° and lows 65°18°, with 4.4 in111 mm of precipitation in a typical August.
- Record high
- 110°43° (1934)
- Record low
- 38°3° (1915)
- Heating degree days
- 2
- Cooling degree days
- 354
Lebanon in September
Highs average 80°27° and lows 57°14°, with 4.1 in103 mm of precipitation in a typical September.
- Record high
- 106°41° (1947)
- Record low
- 28°−2° (1983)
- Heating degree days
- 50
- Cooling degree days
- 152
Lebanon in OctoberThis month
Highs average 69°21° and lows 46°8°, with 3.4 in85 mm of precipitation in a typical October.
- Record high
- 95°35° (1953)
- Record low
- 15°−9° (1925)
- Heating degree days
- 269
- Cooling degree days
- 30
Lebanon in November
Highs average 56°13° and lows 35°1°, with 3.2 in82 mm of precipitation and 0.4 in1 cm of snow in a typical November.
- Record high
- 86°30° (1915)
- Record low
- 1°−17° (1940)
- Heating degree days
- 592
- Cooling degree days
- 2
Lebanon in December
Highs average 46°8° and lows 26°−3°, with 2.5 in64 mm of precipitation and 2.6 in6.6 cm of snow in a typical December.
- Record high
- 80°27° (1939)
- Record low
- −19°−28° (1989)
- Heating degree days
- 897
- Cooling degree days
- 0