Franklintown weather by month
What a typical year looks like in Franklintown, Pennsylvania: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Harrisburg Capital City Airport, 22 km from Franklintown; records cover 1939–2026.
The year at a glance
- Precipitation a year
- 41 in1041 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 29
- Heating degree days
- 4,756
- Cooling degree days
- 1,230
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 9°−13° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Franklintown in January
Highs average 40°5° and lows 25°−4°, with 2.6 in67 mm of precipitation in a typical January.
- Record high
- 73°23° (1950)
- Record low
- −9°−23° (1984)
- Heating degree days
- 1004
- Cooling degree days
- 0
Franklintown in February
Highs average 43°6° and lows 26°−3°, with 2.4 in60 mm of precipitation in a typical February.
- Record high
- 83°28° (2018)
- Record low
- −5°−21° (1979)
- Heating degree days
- 848
- Cooling degree days
- 0
Franklintown in March
Highs average 53°11° and lows 34°1°, with 3.4 in85 mm of precipitation in a typical March.
- Record high
- 86°30° (1945)
- Record low
- 2°−17° (2015)
- Heating degree days
- 675
- Cooling degree days
- 1
Franklintown in April
Highs average 65°18° and lows 43°6°, with 3.7 in94 mm of precipitation in a typical April.
- Record high
- 93°34° (1985)
- Record low
- 19°−7° (1982)
- Heating degree days
- 341
- Cooling degree days
- 14
Franklintown in May
Highs average 75°24° and lows 53°12°, with 3.5 in88 mm of precipitation in a typical May.
- Record high
- 97°36° (1939)
- Record low
- 31°−1° (1966)
- Heating degree days
- 116
- Cooling degree days
- 83
Franklintown in June
Highs average 83°28° and lows 63°17°, with 3.7 in94 mm of precipitation in a typical June.
- Record high
- 100°38° (1952)
- Record low
- 40°4° (1980)
- Heating degree days
- 10
- Cooling degree days
- 250
Franklintown in July
Highs average 88°31° and lows 67°20°, with 4.3 in109 mm of precipitation in a typical July.
- Record high
- 107°42° (1966)
- Record low
- 49°9° (1945)
- Heating degree days
- 0
- Cooling degree days
- 387
Franklintown in August
Highs average 85°30° and lows 66°19°, with 3.7 in93 mm of precipitation in a typical August.
- Record high
- 101°38° (1944)
- Record low
- 45°7° (1976)
- Heating degree days
- 1
- Cooling degree days
- 325
Franklintown in September
Highs average 79°26° and lows 58°15°, with 4.1 in105 mm of precipitation in a typical September.
- Record high
- 102°39° (1953)
- Record low
- 30°−1° (1963)
- Heating degree days
- 43
- Cooling degree days
- 148
Franklintown in OctoberThis month
Highs average 67°19° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical October.
- Record high
- 97°36° (1941)
- Record low
- 23°−5° (1969)
- Heating degree days
- 279
- Cooling degree days
- 22
Franklintown in November
Highs average 55°13° and lows 37°3°, with 2.8 in71 mm of precipitation in a typical November.
- Record high
- 84°29° (1950)
- Record low
- 13°−11° (1955)
- Heating degree days
- 569
- Cooling degree days
- 0
Franklintown in December
Highs average 44°7° and lows 30°−1°, with 3.2 in80 mm of precipitation in a typical December.
- Record high
- 75°24° (1984)
- Record low
- −8°−22° (1960)
- Heating degree days
- 870
- Cooling degree days
- 0