Climate Yearbook

Historical weather in Philadelphia, United States

Philadelphia weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.

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Weather summary

Across 2023-2025, Philadelphia averaged 18.8 C for daily highs and 9.1 C for daily lows across 1096 daily observations.

The warmest month was July 2024, with an average high of 32.3 C, while January 2025 had the lowest average low at -5.0 C.

The wettest month was August 2024, totaling 203.7 mm of precipitation.

The hottest day reached 39.3 C on June 24, 2025; the coldest night fell to -13.9 C on January 21, 2025.

Monthly summary table

YearMonthAvg low CAvg high CRain and snow mmDays
2023January1.59.786.931
2023February0.110.152.328
2023March1.211.897.631
2023April8.720.3168.630
2023May10.422.933.131
2023June15.727.886.330
2023July20.831.5141.131
2023August19.629.667.031
2023September16.526.0183.130
2023October10.620.744.431
2023November2.512.467.230
2023December1.99.7173.031
2024January-1.95.8162.531
2024February-1.18.461.329
2024March3.113.3181.231
2024April6.818.2106.130
2024May13.423.587.831
2024June18.930.983.330
2024July21.732.351.831
2024August19.129.0203.731
2024September15.825.518.930
2024October9.721.42.431
2024November6.215.174.030
2024December-0.56.794.731
2025January-5.01.631.131
2025February-2.05.764.028
2025March3.114.1123.231
2025April8.218.389.230
2025May13.522.2172.231
2025June18.828.380.330
2025July22.231.3118.831
2025August18.428.421.831
2025September17.026.171.330
2025October10.419.489.331
2025November4.412.160.330
2025December-2.93.971.431

Daily weather records

RecordDateValue
Hottest dayJune 24, 202539.3 C
Coldest nightJanuary 21, 2025-13.9 C
Wettest dayMarch 23, 202460.1 mm

Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.