Thayer weather by month
What a typical year looks like in Thayer, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mammoth Spring, 3 km from Thayer; records cover 1904–2026.
The year at a glance
- Precipitation a year
- 48.8 in1238 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 12
- First fall freeze
- Oct 22
- Heating degree days
- 4,178
- Cooling degree days
- 1,425
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 8°−13° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Thayer in January
Highs average 47°8° and lows 23°−5°, with 3.6 in90 mm of precipitation in a typical January.
- Record high
- 79°26° (1950)
- Record low
- −23°−31° (1918)
- Heating degree days
- 936
- Cooling degree days
- 0
Thayer in February
Highs average 52°11° and lows 27°−3°, with 3.5 in88 mm of precipitation in a typical February.
- Record high
- 89°32° (1962)
- Record low
- −24°−31° (1951)
- Heating degree days
- 728
- Cooling degree days
- 0
Thayer in March
Highs average 61°16° and lows 35°2°, with 4.6 in117 mm of precipitation in a typical March.
- Record high
- 97°36° (1929)
- Record low
- 1°−17° (1960)
- Heating degree days
- 529
- Cooling degree days
- 4
Thayer in April
Highs average 71°22° and lows 44°7°, with 5.2 in132 mm of precipitation in a typical April.
- Record high
- 95°35° (1920)
- Record low
- 19°−7° (1987)
- Heating degree days
- 254
- Cooling degree days
- 24
Thayer in May
Highs average 78°26° and lows 54°12°, with 5.3 in135 mm of precipitation in a typical May.
- Record high
- 99°37° (1913)
- Record low
- 28°−2° (1909)
- Heating degree days
- 76
- Cooling degree days
- 111
Thayer in June
Highs average 86°30° and lows 63°17°, with 3.3 in85 mm of precipitation in a typical June.
- Record high
- 108°42° (2012)
- Record low
- 35°2° (1969)
- Heating degree days
- 5
- Cooling degree days
- 288
Thayer in July
Highs average 90°32° and lows 66°19°, with 4 in100 mm of precipitation in a typical July.
- Record high
- 110°43° (1980)
- Record low
- 45°7° (1972)
- Heating degree days
- 0
- Cooling degree days
- 414
Thayer in August
Highs average 90°32° and lows 65°18°, with 3.5 in89 mm of precipitation in a typical August.
- Record high
- 109°43° (1934)
- Record low
- 40°4° (1986)
- Heating degree days
- 1
- Cooling degree days
- 379
Thayer in September
Highs average 82°28° and lows 57°14°, with 3.6 in92 mm of precipitation in a typical September.
- Record high
- 109°43° (1954)
- Record low
- 30°−1° (1967)
- Heating degree days
- 37
- Cooling degree days
- 173
Thayer in OctoberThis month
Highs average 72°22° and lows 44°7°, with 3.8 in96 mm of precipitation in a typical October.
- Record high
- 96°36° (1963)
- Record low
- 15°−9° (1952)
- Heating degree days
- 239
- Cooling degree days
- 30
Thayer in November
Highs average 60°16° and lows 34°1°, with 4.6 in117 mm of precipitation in a typical November.
- Record high
- 87°31° (1950)
- Record low
- 2°−17° (1958)
- Heating degree days
- 541
- Cooling degree days
- 2
Thayer in December
Highs average 50°10° and lows 27°−3°, with 3.8 in96 mm of precipitation in a typical December.
- Record high
- 80°27° (1956)
- Record low
- −21°−29° (1917)
- Heating degree days
- 832
- Cooling degree days
- 0