April weather in Allentown, PA
The average temperature in Allentown in April is 51.8°F (40.3°F–63.4°F). Average precipitation: 3.67 inches. Average snowfall is 0.5 inches.
April is a spring month in Allentown, and is cooler than the annual average of 53.1°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 5m. For travel, April is a comfortable month to visit.
Avg High
63.4°F
Avg Low
40.3°F
Precipitation
3.67 in
Snow
0.5 in
April records in Allentown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 84.0°F (1978) | 19.0°F (1969) | 1.65 in (1993) |
| April 2 | 82.0°F (1967) | 18.0°F (1964) | 3.46 in (2005) |
| April 3 | 82.0°F (1963) | 19.9°F (1954) | 2.04 in (1975) |
| April 4 | 79.0°F (2026) | 19.9°F (1954) | 1.57 in (1987) |
| April 5 | 81.0°F (1985) | 21.0°F (1995) | 1.96 in (1952) |
| April 6 | 82.9°F (2010) | 18.0°F (1982) | 1.46 in (1958) |
| April 7 | 91.9°F (2010) | 16.0°F (1982) | 2.16 in (2022) |
| April 8 | 84.0°F (1991) | 19.9°F (1982) | 1.17 in (1983) |
| April 9 | 82.9°F (2001) | 21.9°F (1977) | 1.88 in (1998) |
| April 10 | 86.0°F (2013) | 23.0°F (1950) | 1.54 in (1993) |
| April 11 | 84.9°F (2017) | 24.1°F (2007) | 0.71 in (1948) |
| April 12 | 87.1°F (1977) | 24.1°F (1976) | 1.15 in (1951) |
| April 13 | 86.0°F (2023) | 24.1°F (2009) | 1.35 in (1961) |
| April 14 | 88.0°F (2023) | 23.0°F (1950) | 1.27 in (1964) |
| April 15 | 86.0°F (1994) | 25.0°F (1996) | 2.87 in (2007) |
| April 16 | 90.0°F (2012) | 27.0°F (1950) | 1.83 in (2011) |
| April 17 | 91.0°F (1976) | 27.1°F (2014) | 0.89 in (1986) |
| April 18 | 93.0°F (1976) | 25.0°F (1948) | 1.42 in (2022) |
| April 19 | 91.0°F (1976) | 26.1°F (2001) | 1.07 in (2013) |
| April 20 | 88.0°F (1976) | 28.9°F (1961) | 1.49 in (2019) |
| April 21 | 89.1°F (1985) | 28.0°F (1956) | 1.47 in (1991) |
| April 22 | 91.9°F (1985) | 28.0°F (1981) | 1.66 in (2012) |
| April 23 | 89.1°F (1960) | 30.0°F (1989) | 1.10 in (2005) |
| April 24 | 86.0°F (1960) | 30.0°F (1971) | 2.52 in (1968) |
| April 25 | 89.1°F (1960) | 27.0°F (1956) | 1.64 in (1952) |
| April 26 | 91.9°F (1990) | 30.0°F (1967) | 1.50 in (1953) |
| April 27 | 91.9°F (1990) | 30.9°F (1963) | 1.13 in (1980) |
| April 28 | 91.0°F (1990) | 30.0°F (2012) | 1.61 in (2008) |
| April 29 | 88.0°F (2024) | 30.0°F (1949) | 0.97 in (1996) |
| April 30 | 84.0°F (1985) | 30.0°F (2012) | 3.13 in (2014) |