Palmer Heights weather by month
What a typical year looks like in Palmer Heights, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Allentown Lehigh Valley International Airport, 16 km from Palmer Heights; records cover 1922–2026.
The year at a glance
- Precipitation a year
- 47.4 in1203 mm
- Snow a year
- 33 in84 cm
- Last spring freeze
- Apr 22
- First fall freeze
- Oct 18
- Heating degree days
- 5,294
- Cooling degree days
- 981
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 94°34° (cooling, 1%).
Month by month
Palmer Heights in January
Highs average 38°4° and lows 22°−6°, with 3.3 in84 mm of precipitation and 10 in25 cm of snow in a typical January.
- Record high
- 72°22° (1950)
- Record low
- −15°−26° (1994)
- Heating degree days
- 1082
- Cooling degree days
- 0
Palmer Heights in February
Highs average 42°5° and lows 23°−5°, with 2.8 in70 mm of precipitation and 11 in27 cm of snow in a typical February.
- Record high
- 81°27° (2018)
- Record low
- −12°−24° (1934)
- Heating degree days
- 913
- Cooling degree days
- 0
Palmer Heights in March
Highs average 51°10° and lows 31°−1°, with 3.6 in92 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 87°31° (1998)
- Record low
- −5°−21° (1934)
- Heating degree days
- 755
- Cooling degree days
- 0
Palmer Heights in April
Highs average 63°17° and lows 40°5°, with 3.7 in93 mm of precipitation and 0.5 in1.3 cm of snow in a typical April.
- Record high
- 93°34° (1976)
- Record low
- 12°−11° (1923)
- Heating degree days
- 403
- Cooling degree days
- 8
Palmer Heights in May
Highs average 74°23° and lows 51°10°, with 3.7 in93 mm of precipitation in a typical May.
- Record high
- 97°36° (1962)
- Record low
- 28°−2° (1947)
- Heating degree days
- 151
- Cooling degree days
- 60
Palmer Heights in June
Highs average 82°28° and lows 60°16°, with 4.4 in112 mm of precipitation in a typical June.
- Record high
- 100°38° (1923)
- Record low
- 39°4° (1932)
- Heating degree days
- 19
- Cooling degree days
- 196
Palmer Heights in July
Highs average 86°30° and lows 65°18°, with 5.3 in135 mm of precipitation in a typical July.
- Record high
- 105°41° (1966)
- Record low
- 46°8° (1933)
- Heating degree days
- 1
- Cooling degree days
- 328
Palmer Heights in August
Highs average 84°29° and lows 63°17°, with 4.6 in116 mm of precipitation in a typical August.
- Record high
- 100°38° (1924)
- Record low
- 41°5° (1934)
- Heating degree days
- 3
- Cooling degree days
- 268
Palmer Heights in September
Highs average 77°25° and lows 55°13°, with 4.8 in123 mm of precipitation in a typical September.
- Record high
- 99°37° (1953)
- Record low
- 30°−1° (1947)
- Heating degree days
- 69
- Cooling degree days
- 108
Palmer Heights in OctoberThis month
Highs average 66°19° and lows 44°7°, with 4.1 in105 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 93°34° (2019)
- Record low
- 21°−6° (1936)
- Heating degree days
- 334
- Cooling degree days
- 13
Palmer Heights in November
Highs average 54°12° and lows 34°1°, with 3.2 in82 mm of precipitation and 0.9 in2.3 cm of snow in a typical November.
- Record high
- 81°27° (1950)
- Record low
- 3°−16° (1938)
- Heating degree days
- 632
- Cooling degree days
- 0
Palmer Heights in December
Highs average 43°6° and lows 27°−3°, with 3.9 in98 mm of precipitation and 5 in12 cm of snow in a typical December.
- Record high
- 72°22° (1984)
- Record low
- −8°−22° (1950)
- Heating degree days
- 932
- Cooling degree days
- 0