June is one of the warmer months of the year in Philadelphia, with average highs near 26.6°C and lows around 15.6°C (mean 21.1°C). It is about average for rainfall, averaging 104 mm of rainfall and 78% relative humidity across the period.
June is one of the warmer months of the year in Philadelphia. Across 45 years of records, the warmest June in Philadelphia was 2010 — when the month averaged 23°C — while the coldest was 1982 at 19°C. Typical June days reach 26.6°C with nights near 15.6°C. The long-term trend is warming, about 0.4°C per decade.
June is about average for rainfall in Philadelphia, averaging 104 mm of rainfall. The wettest June on record was 2013 with 249 mm, while the driest was 1988 at 30 mm.
Relative humidity in Philadelphia during June averages 78%. The most humid June was 2009 at 84%, and the least humid was 1988 at 68%.
June receives about 6.2 kWh/m²/day of solar energy in Philadelphia. The sunniest June was 2024 at 7 kWh/m²/day, and the cloudiest was 2009 at 5.1.
Average wind speed in Philadelphia during June is 1.7 m/s. The windiest Junes were 1999, 2000 and 2015, among others at 1.9 m/s, while the calmest were 1983 and 2011 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.4°C | 20.6°C | 21.3°C | 21.5°C | 21.7°C | +1.3°C |
| Avg High | 26.1°C | 26.3°C | 26.6°C | 26.8°C | 27.2°C | +1.1°C |
| Avg Low | 14.8°C | 14.9°C | 16.0°C | 16.2°C | 16.2°C | +1.4°C |
| Avg Rain | 97 mm | 80 mm | 124 mm | 119 mm | 98 mm | +2 mm |
June temperatures in Philadelphia have risen by about 1.6°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 4.7°C (1986) to a record high of 37.2°C (2025).
Rainfall in June is about average for rainfall, averaging 104 mm, with a wettest year of 249 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Philadelphia
June is one of the best times to visit Philadelphia. Expect days averaging 26.6°C and nights around 15.6°C (mean 21.1°C) — warmer than Philadelphia's yearly average — with higher rainfall (104 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.2°C | 22.7°C | 17.2°C | 37.2°C | 7.9°C | 78 mm | 78% | 1.6 m/s | 5.7 |
| 2024 | 28.2°C | 22.7°C | 17.1°C | 34.3°C | 11.0°C | 113 mm | 77% | 1.7 m/s | 7 |
| 2023 | 25.9°C | 20.2°C | 14.5°C | 32.5°C | 8.4°C | 133 mm | 75% | 1.7 m/s | 5.9 |
| 2022 | 26.6°C | 21.1°C | 15.7°C | 31.5°C | 9.3°C | 100 mm | 75% | 1.6 m/s | 6.5 |
| 2021 | 27.1°C | 21.9°C | 16.6°C | 34.1°C | 10.5°C | 87 mm | 81% | 1.6 m/s | 6.4 |
| 2020 | 27.0°C | 21.5°C | 16.1°C | 31.8°C | 6.8°C | 78 mm | 77% | 1.7 m/s | 6.8 |
| 2019 | 26.2°C | 21.2°C | 16.2°C | 31.9°C | 7.8°C | 173 mm | 80% | 1.7 m/s | 6.5 |
| 2018 | 26.3°C | 21.1°C | 15.9°C | 33.9°C | 10.7°C | 103 mm | 80% | 1.7 m/s | 6 |
| 2017 | 27.1°C | 21.4°C | 15.8°C | 33.0°C | 8.3°C | 92 mm | 75% | 1.8 m/s | 6.6 |
| 2016 | 26.6°C | 21.1°C | 15.6°C | 31.6°C | 8.3°C | 65 mm | 75% | 1.6 m/s | 6.6 |
| 2015 | 26.2°C | 21.5°C | 16.9°C | 30.6°C | 10.6°C | 221 mm | 83% | 1.9 m/s | 5.8 |
| 2014 | 26.3°C | 21.2°C | 16.2°C | 30.8°C | 9.3°C | 79 mm | 80% | 1.5 m/s | 6.5 |
| 2013 🌧️ | 26.5°C | 21.5°C | 16.4°C | 30.8°C | 9.6°C | 249 mm | 82% | 1.7 m/s | 6 |
| 2012 | 26.8°C | 21.0°C | 15.2°C | 34.7°C | 8.7°C | 93 mm | 74% | 1.6 m/s | 6.6 |
| 2011 | 27.3°C | 22.0°C | 16.7°C | 31.7°C | 9.8°C | 67 mm | 78% | 1.4 m/s | 6.2 |
| 2010 🔥 | 28.5°C | 23.0°C | 17.5°C | 33.2°C | 11.2°C | 51 mm | 76% | 1.6 m/s | 6.5 |
| 2009 | 24.8°C | 20.2°C | 15.7°C | 28.3°C | 8.0°C | 157 mm | 84% | 1.6 m/s | 5.1 |
| 2008 | 28.0°C | 22.7°C | 17.3°C | 34.0°C | 11.4°C | 71 mm | 78% | 1.5 m/s | 6.6 |
| 2007 | 26.4°C | 21.1°C | 15.8°C | 31.7°C | 10.0°C | 111 mm | 80% | 1.5 m/s | 6.2 |
| 2006 | 25.9°C | 21.0°C | 16.2°C | 32.3°C | 8.1°C | 199 mm | 79% | 1.7 m/s | 5.7 |
| 2005 | 27.5°C | 22.0°C | 16.6°C | 32.1°C | 9.9°C | 83 mm | 80% | 1.7 m/s | 6.1 |
| 2004 | 25.7°C | 20.5°C | 15.3°C | 30.9°C | 9.7°C | 72 mm | 80% | 1.6 m/s | 5.9 |
| 2003 | 25.0°C | 19.9°C | 14.8°C | 33.8°C | 7.1°C | 196 mm | 84% | 1.5 m/s | 5.2 |
| 2002 | 28.2°C | 22.1°C | 16.1°C | 34.8°C | 10.4°C | 117 mm | 70% | 1.7 m/s | 6.4 |
| 2001 | 27.5°C | 22.0°C | 16.4°C | 32.8°C | 6.8°C | 137 mm | 75% | 1.6 m/s | 6.5 |
| 2000 | 26.9°C | 21.3°C | 15.8°C | 31.9°C | 8.6°C | 98 mm | 79% | 1.9 m/s | 5.5 |
| 1999 | 28.2°C | 21.8°C | 15.4°C | 34.6°C | 11.0°C | 44 mm | 68% | 1.9 m/s | 6 |
| 1998 | 24.9°C | 20.1°C | 15.2°C | 31.0°C | 8.1°C | 111 mm | 82% | 1.8 m/s | 5.5 |
| 1997 | 25.9°C | 20.1°C | 14.3°C | 33.5°C | 8.3°C | 58 mm | 76% | 1.7 m/s | 6.1 |
| 1996 | 25.8°C | 20.5°C | 15.2°C | 29.6°C | 7.7°C | 161 mm | 83% | 1.7 m/s | 5.9 |
| 1995 | 27.6°C | 21.4°C | 15.3°C | 34.5°C | 11.0°C | 50 mm | 71% | 1.9 m/s | 5.6 |
| 1994 | 27.2°C | 21.6°C | 16.0°C | 32.9°C | 7.6°C | 78 mm | 80% | 1.8 m/s | 5.9 |
| 1993 | 25.7°C | 20.1°C | 14.5°C | 30.5°C | 6.3°C | 55 mm | 78% | 1.6 m/s | 6.4 |
| 1992 | 25.0°C | 19.1°C | 13.1°C | 30.2°C | 6.8°C | 93 mm | 76% | 1.7 m/s | 6.6 |
| 1991 | 27.4°C | 21.3°C | 15.2°C | 35.4°C | 10.1°C | 68 mm | 72% | 1.5 m/s | 6.2 |
| 1990 | 25.7°C | 20.2°C | 14.6°C | 30.0°C | 7.3°C | 80 mm | 80% | 1.7 m/s | 6.2 |
| 1989 | 25.9°C | 21.4°C | 16.9°C | 29.9°C | 10.2°C | 161 mm | 84% | 1.6 m/s | 5.5 |
| 1988 | 26.3°C | 20.0°C | 13.7°C | 34.8°C | 6.8°C | 30 mm | 68% | 1.8 m/s | 6.9 |
| 1987 | 26.6°C | 21.1°C | 15.6°C | 30.8°C | 8.2°C | 91 mm | 80% | 1.7 m/s | 6.4 |
| 1986 | 27.2°C | 20.7°C | 14.1°C | 32.9°C | 4.7°C | 53 mm | 69% | 1.9 m/s | 6.8 |
| 1985 | 25.8°C | 19.8°C | 13.8°C | 30.6°C | 9.9°C | 78 mm | 69% | 1.9 m/s | 5.8 |
| 1984 | 26.0°C | 20.7°C | 15.4°C | 31.8°C | 6.1°C | 104 mm | 83% | 1.6 m/s | 5.7 |
| 1983 | 25.7°C | 19.9°C | 14.1°C | 30.1°C | 7.6°C | 98 mm | 81% | 1.4 m/s | — |
| 1982 ❄️ | 24.1°C | 19.0°C | 13.8°C | 28.5°C | 9.0°C | 134 mm | 81% | 1.7 m/s | — |
| 1981 | 27.1°C | 21.3°C | 15.4°C | 33.7°C | 10.7°C | 121 mm | 74% | 1.7 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 26.6°C with lows near 15.6°C (mean 21.1°C), based on 45 years of NASA POWER data.
June averages 104 mm of rainfall in Philadelphia, about average for rainfall. The wettest on record was 249 mm in 2013.
The hottest June reached 37.2°C in 2025. The coldest dipped to 4.7°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.6°C. Daytime highs moved from 25.7°C to 27.2°C and overnight lows from 14.5°C to 16.2°C over the same span.
June is one of the warmer months of the year in Philadelphia and about average for rainfall, so plan for around 26.6°C daytime highs and 15.6°C at night.
Not quite — June is the 10th coolest month in Philadelphia, averaging 21.1°C.
For June in Philadelphia, pack light layers you can adjust through the day, with typical highs of 26.6°C and lows of 15.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 78% — quite humid.
Average wind speed in June is 1.7 m/s. The windiest June on record averaged 1.9 m/s (1985).
The wettest June on record was 2013 with 249 mm. On average, June sees 104 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Philadelphia behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
