Princeton weather by month
What a typical year looks like in Princeton, Indiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at 1 Wsw Princeton, 1 km from Princeton; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 49.8 in1266 mm
- Snow a year
- 12 in31 cm
- Last spring freeze
- Apr 9
- First fall freeze
- Oct 28
- Heating degree days
- 4,919
- Cooling degree days
- 1,301
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 4°−16° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Princeton in January
Highs average 40°4° and lows 21°−6°, with 3.4 in86 mm of precipitation and 4 in9 cm of snow in a typical January.
- Record high
- 75°24° (1943)
- Record low
- −19°−28° (1985)
- Heating degree days
- 1071
- Cooling degree days
- 0
Princeton in February
Highs average 45°7° and lows 24°−5°, with 3.2 in82 mm of precipitation and 3 in9 cm of snow in a typical February.
- Record high
- 78°26° (1932)
- Record low
- −20°−29° (1899)
- Heating degree days
- 862
- Cooling degree days
- 0
Princeton in March
Highs average 55°13° and lows 32°0°, with 4.5 in115 mm of precipitation and 1.2 in3 cm of snow in a typical March.
- Record high
- 91°33° (1929)
- Record low
- −7°−22° (1960)
- Heating degree days
- 664
- Cooling degree days
- 2
Princeton in April
Highs average 67°20° and lows 43°6°, with 5.3 in134 mm of precipitation in a typical April.
- Record high
- 92°33° (2001)
- Record low
- 21°−6° (1972)
- Heating degree days
- 320
- Cooling degree days
- 16
Princeton in May
Highs average 77°25° and lows 54°12°, with 5.7 in144 mm of precipitation in a typical May.
- Record high
- 100°38° (1911)
- Record low
- 28°−2° (1903)
- Heating degree days
- 100
- Cooling degree days
- 105
Princeton in June
Highs average 85°30° and lows 63°17°, with 4.5 in113 mm of precipitation in a typical June.
- Record high
- 106°41° (2012)
- Record low
- 32°0° (1918)
- Heating degree days
- 7
- Cooling degree days
- 283
Princeton in July
Highs average 88°31° and lows 66°19°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 113°45° (1936)
- Record low
- 46°8° (1962)
- Heating degree days
- 0
- Cooling degree days
- 372
Princeton in August
Highs average 87°31° and lows 64°18°, with 3.3 in84 mm of precipitation in a typical August.
- Record high
- 108°42° (1930)
- Record low
- 43°6° (1915)
- Heating degree days
- 2
- Cooling degree days
- 333
Princeton in September
Highs average 81°27° and lows 57°14°, with 4.2 in107 mm of precipitation in a typical September.
- Record high
- 105°41° (1899)
- Record low
- 27°−3° (1899)
- Heating degree days
- 46
- Cooling degree days
- 160
Princeton in OctoberThis month
Highs average 69°21° and lows 45°7°, with 3.4 in87 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 95°35° (1903)
- Record low
- 19°−7° (1925)
- Heating degree days
- 277
- Cooling degree days
- 29
Princeton in November
Highs average 55°13° and lows 33°1°, with 4.1 in103 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 84°29° (2016)
- Record low
- −3°−19° (1929)
- Heating degree days
- 632
- Cooling degree days
- 1
Princeton in December
Highs average 44°7° and lows 26°−4°, with 3.8 in96 mm of precipitation and 4 in9 cm of snow in a typical December.
- Record high
- 76°24° (1931)
- Record low
- −15°−26° (1989)
- Heating degree days
- 938
- Cooling degree days
- 0