Weather on April 18
Philadelphia, PA
55 Years of Data
About This Date
April 18th in Philadelphia, PA typically brings mild spring weather, with average highs around 68°F and lows near 49°F. Over 54 years of records, the warmest April 18th was in 1976 (84°F average), while the coldest was 1997 (42°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 15% of April 18th dates historically. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for April 18th in Philadelphia, PA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 84° | — | — | — | — |
| 2025 | 64° | 48° | 56° | — | — |
| 2024 | 68° | 49° | 58° | — | — |
| 2023 | 69° | 52° | 60° | — | — |
| 2022 | 77° | 44° | 61° | — | — |
| 2021 | 60° | 50° | 55° | — | — |
| 2019 | 68° | 44° | 56° | — | — |
| 2018 | 47° | 38° | 42° | — | — |
| 2017 | 73° | 61° | 67° | 0.03" | — |
| 2016 | 75° | 53° | 64° | — | — |
| 2015 | 74° | 48° | 61° | — | — |
| 2014 | 52° | 38° | 45° | — | — |
| 2013 | 74° | 53° | 63° | — | — |
| 2012 | 79° | 52° | 65° | — | — |
| 2011 | 62° | 51° | 57° | — | — |
| 2010 | 60° | 40° | 50° | — | — |
| 2009 | 79° | 58° | 68° | 0.02" | — |
| 2008 | 86° | 60° | 73° | — | — |
| 2007 | 53° | 41° | 47° | 0.03" | — |
| 2006 | 76° | 52° | 64° | — | — |
| 2005 | 79° | 55° | 67° | — | — |
| 2004 | 89° | 57° | 73° | — | — |
| 2003 | 50° | 40° | 45° | 0.06" | — |
| 2002 | 94° | 75° | 84° | 0.03" | — |
| 2000 | 49° | 42° | 45° | 0.03" | — |
| 1999 | 60° | 46° | 53° | — | — |
| 1998 | 69° | 49° | 59° | 0.23" | — |
| 1997coldest | 49° | 36° | 42° | 0.13" | — |
| 1996 | 69° | 43° | 56° | — | — |
| 1995 | 64° | 45° | 54° | — | — |
| 1994 | 64° | 51° | 58° | — | — |
| 1993 | 61° | 41° | 51° | — | — |
| 1992 | 49° | 42° | 45° | — | — |
| 1991 | 57° | 45° | 51° | — | — |
| 1990 | 55° | 38° | 46° | — | — |
| 1989 | 75° | 58° | 66° | — | — |
| 1988 | 61° | 48° | 54° | — | — |
| 1987 | 62° | 53° | 58° | — | — |
| 1986 | 72° | 51° | 61° | — | — |
| 1985 | 74° | 47° | 60° | — | — |
| 1984 | 67° | 51° | 59° | — | — |
| 1983 | 52° | 35° | 43° | — | — |
| 1982 | 66° | 49° | 57° | — | — |
| 1981 | 79° | 55° | 67° | — | — |
| 1980 | 67° | 45° | 56° | — | — |
| 1979 | 62° | 46° | 54° | — | — |
| 1978 | 62° | 40° | 51° | — | — |
| 1977 | 76° | 52° | 64° | — | — |
| 1976warmest | 96° | 71° | 84° | — | — |
| 1975 | 67° | 50° | 58° | — | — |
| 1974 | 70° | 51° | 60° | — | — |
| 1973 | 78° | 62° | 70° | — | — |
| 1972 | 69° | 49° | 59° | — | — |
| 1971 | 66° | 43° | 54° | — | — |
Philadelphia, PA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Philadelphia, PA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Philadelphia, PA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Philadelphia, PA
Most pleasant months in Philadelphia, PA: April, May, September, October.
What to expect on April 18th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
April 18th outlook →