Weather on March 15
Allentown, PA
55 Years of Data
About This Date
March 15th in Allentown, PA typically brings cool spring weather, with average highs around 51°F and lows near 32°F. Over 56 years of records, the warmest March 15th was in 1990 (63°F average), while the coldest was 1993 (17°F) — a 46°F range across recorded history. Precipitation has occurred on 29% of recorded March 15th dates, with snow falling 7% of the time. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Allentown, PA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 46° | 33° | 40° | — | — |
| 2025 | 52° | 41° | 46° | — | — |
| 2024 | 68° | 43° | 55° | 0.03" | — |
| 2023 | 46° | 32° | 39° | — | — |
| 2022 | 67° | 27° | 47° | — | — |
| 2021 | 39° | 21° | 30° | — | — |
| 2020 | 56° | 34° | 45° | — | — |
| 2019 | 74° | 51° | 62° | 0.57" | — |
| 2018 | 46° | 26° | 36° | — | — |
| 2017 | 29° | 19° | 24° | — | — |
| 2016 | 55° | 42° | 49° | — | — |
| 2015 | 44° | 37° | 41° | — | — |
| 2014 | 56° | 36° | 46° | — | — |
| 2013 | 49° | 20° | 34° | — | — |
| 2012 | 59° | 42° | 51° | — | — |
| 2011 | 52° | 23° | 37° | 0.02" | — |
| 2010 | 46° | 42° | 44° | 0.22" | — |
| 2009 | 52° | 34° | 43° | — | — |
| 2008 | 54° | 40° | 47° | 0.1" | — |
| 2007 | 55° | 37° | 46° | 0.27" | — |
| 2006 | 44° | 35° | 40° | — | — |
| 2005 | 43° | 23° | 33° | — | — |
| 2004 | 57° | 31° | 44° | — | — |
| 2003 | 53° | 26° | 40° | — | — |
| 2002 | 67° | 50° | 58° | — | — |
| 2001 | 50° | 25° | 37° | — | — |
| 2000 | 68° | 28° | 48° | — | — |
| 1999 | 40° | 31° | 35° | 0.02" | 0.3" |
| 1998 | 42° | 26° | 34° | — | — |
| 1997 | 43° | 27° | 35° | — | — |
| 1996 | 60° | 35° | 48° | 0.37" | — |
| 1995 | 74° | 38° | 56° | — | — |
| 1994 | 51° | 34° | 42° | 0.01" | — |
| 1993coldest | 26° | 8° | 17° | — | — |
| 1992 | 33° | 18° | 25° | — | — |
| 1991 | 44° | 33° | 39° | 0.07" | 0.4" |
| 1990warmest | 79° | 47° | 63° | — | — |
| 1989 | 67° | 44° | 55° | 0.01" | — |
| 1988 | 34° | 26° | 30° | — | — |
| 1987 | 48° | 31° | 39° | — | — |
| 1986 | 63° | 43° | 53° | 0.11" | — |
| 1985 | 47° | 31° | 39° | — | — |
| 1984 | 50° | 25° | 37° | — | — |
| 1983 | 62° | 37° | 50° | — | — |
| 1982 | 44° | 34° | 39° | — | — |
| 1981 | 51° | 26° | 39° | — | — |
| 1980 | 40° | 32° | 36° | — | — |
| 1979 | 35° | 21° | 28° | — | — |
| 1978 | 47° | 37° | 42° | — | — |
| 1977 | 62° | 46° | 54° | — | — |
| 1976 | 52° | 31° | 41° | — | — |
| 1975 | 43° | 28° | 35° | 0.01" | 0.1" |
| 1974 | 51° | 25° | 38° | — | — |
| 1973 | 49° | 41° | 45° | 0.31" | — |
| 1972 | 45° | 29° | 37° | 0.07" | 0.1" |
| 1971 | 68° | 37° | 53° | 0.06" | — |
Allentown, PA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Allentown, PA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Allentown, 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 Allentown, PA
Most pleasant months in Allentown, PA: May, June, September.
What to expect on March 15th
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.
March 15th outlook →