July is one of the warmer months of the year in Lansdale, with average highs near 29.7°C and lows around 19.1°C (mean 24.4°C). It is a relatively wet time of year, averaging 121 mm of rainfall and 74% relative humidity across the period.
July is one of the warmer months of the year in Lansdale. Across 45 years of records, the warmest July in Lansdale was 1999 — when the month averaged 27.4°C — while the coldest was 1984 at 21.5°C. Typical July days reach 29.7°C with nights near 19.1°C. The long-term trend is warming, about 0.5°C per decade.
July is a relatively wet time of year in Lansdale, averaging 121 mm of rainfall. The wettest July on record was 2004 with 202 mm, while the driest was 1999 at 34 mm.
Relative humidity in Lansdale during July averages 74%. The most humid Julys were 1984 and 2013 at 84%, and the least humid was 1999 at 53%.
July receives about 5.8 kWh/m²/day of solar energy in Lansdale. The sunniest Julys were 2010 and 2011 at 6.4 kWh/m²/day, and the cloudiest were 1984, 1989 and 2004 at 5.2.
Average wind speed in Lansdale during July is 1.5 m/s. The windiest July was 1999 at 1.8 m/s, while the calmest was 1987 at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.6°C | 24.3°C | 23.7°C | 25.0°C | 25.8°C | +2.2°C |
| Avg High | 29.2°C | 29.8°C | 29.0°C | 30.1°C | 30.9°C | +1.7°C |
| Avg Low | 18.1°C | 18.7°C | 18.5°C | 19.8°C | 20.7°C | +2.6°C |
| Avg Rain | 128 mm | 109 mm | 111 mm | 133 mm | 131 mm | +3 mm |
July temperatures in Lansdale have risen by about 2.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 9.5°C (1988) to a record high of 39.2°C (1999).
Rainfall in July is a relatively wet time of year, averaging 121 mm, with a wettest year of 202 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.6°C per decade, narrowing the gap between day and night.
One of the best times to visit Lansdale
July is one of the best times to visit Lansdale. Expect days averaging 29.7°C and nights around 19.1°C (mean 24.4°C) — warmer than Lansdale's yearly average — with higher rainfall (121 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 | 31.3°C | 26.2°C | 21.2°C | 37.1°C | 16.5°C | 149 mm | 75% | 1.3 m/s | 5.8 |
| 2024 | 30.8°C | 25.9°C | 21.1°C | 35.4°C | 15.5°C | 95 mm | 77% | 1.4 m/s | 5.7 |
| 2023 | 30.0°C | 25.2°C | 20.4°C | 33.7°C | 17.2°C | 164 mm | 79% | 1.3 m/s | 5.7 |
| 2022 | 32.1°C | 26.4°C | 20.7°C | 37.4°C | 15.8°C | 76 mm | 68% | 1.6 m/s | 6 |
| 2021 | 29.7°C | 24.8°C | 19.8°C | 33.6°C | 13.6°C | 136 mm | 77% | 1.4 m/s | 5.6 |
| 2020 | 31.5°C | 26.4°C | 21.3°C | 34.7°C | 18.0°C | 167 mm | 74% | 1.4 m/s | 6.2 |
| 2019 | 29.7°C | 24.9°C | 20.2°C | 33.2°C | 15.2°C | 166 mm | 80% | 1.3 m/s | 6.3 |
| 2018 | 29.0°C | 24.1°C | 19.2°C | 33.7°C | 13.2°C | 168 mm | 78% | 1.6 m/s | 6.1 |
| 2017 | 29.8°C | 24.8°C | 19.7°C | 35.0°C | 13.7°C | 169 mm | 75% | 1.4 m/s | 5.6 |
| 2016 | 31.3°C | 25.8°C | 20.4°C | 36.0°C | 14.8°C | 149 mm | 72% | 1.5 m/s | 6 |
| 2015 | 28.6°C | 23.8°C | 18.9°C | 32.6°C | 15.0°C | 103 mm | 79% | 1.3 m/s | 6 |
| 2014 | 28.0°C | 23.0°C | 17.9°C | 31.5°C | 12.7°C | 134 mm | 79% | 1.6 m/s | 6.2 |
| 2013 | 28.8°C | 24.7°C | 20.6°C | 34.6°C | 14.9°C | 137 mm | 84% | 1.5 m/s | 5.7 |
| 2012 | 32.2°C | 26.6°C | 20.9°C | 38.3°C | 17.3°C | 81 mm | 65% | 1.4 m/s | 5.9 |
| 2011 | 32.1°C | 26.3°C | 20.4°C | 38.9°C | 14.5°C | 107 mm | 69% | 1.5 m/s | 6.4 |
| 2010 | 31.5°C | 25.7°C | 19.9°C | 37.9°C | 12.5°C | 115 mm | 70% | 1.5 m/s | 6.4 |
| 2009 | 26.9°C | 22.0°C | 17.1°C | 30.4°C | 13.2°C | 125 mm | 80% | 1.5 m/s | 5.8 |
| 2008 | 30.5°C | 25.1°C | 19.6°C | 35.2°C | 16.3°C | 110 mm | 71% | 1.5 m/s | 5.9 |
| 2007 | 28.4°C | 23.2°C | 18.0°C | 32.9°C | 10.7°C | 94 mm | 75% | 1.5 m/s | 6 |
| 2006 | 29.3°C | 24.6°C | 19.9°C | 33.9°C | 14.4°C | 129 mm | 81% | 1.5 m/s | 6 |
| 2005 | 30.0°C | 24.8°C | 19.6°C | 35.8°C | 15.4°C | 119 mm | 77% | 1.4 m/s | 5.8 |
| 2004 🌧️ | 28.0°C | 23.3°C | 18.6°C | 31.3°C | 15.4°C | 202 mm | 80% | 1.6 m/s | 5.2 |
| 2003 | 27.8°C | 23.3°C | 18.8°C | 31.4°C | 15.4°C | 91 mm | 82% | 1.6 m/s | 5.9 |
| 2002 | 32.5°C | 26.0°C | 19.4°C | 37.4°C | 13.3°C | 37 mm | 58% | 1.6 m/s | 6.2 |
| 2001 | 28.9°C | 22.8°C | 16.7°C | 35.4°C | 12.6°C | 69 mm | 65% | 1.7 m/s | 6.3 |
| 2000 | 27.8°C | 22.4°C | 17.0°C | 33.0°C | 12.2°C | 132 mm | 71% | 1.5 m/s | 5.5 |
| 1999 🔥 | 34.2°C | 27.4°C | 20.5°C | 39.2°C | 15.7°C | 34 mm | 53% | 1.8 m/s | 6.1 |
| 1998 | 28.5°C | 23.2°C | 17.8°C | 32.9°C | 12.8°C | 53 mm | 75% | 1.4 m/s | 5.8 |
| 1997 | 29.9°C | 23.6°C | 17.3°C | 36.4°C | 12.3°C | 122 mm | 66% | 1.6 m/s | 6.3 |
| 1996 | 26.6°C | 21.9°C | 17.2°C | 29.7°C | 12.0°C | 176 mm | 83% | 1.7 m/s | 5.3 |
| 1995 | 31.2°C | 25.5°C | 19.8°C | 37.4°C | 12.8°C | 108 mm | 68% | 1.6 m/s | 5.5 |
| 1994 | 29.3°C | 24.6°C | 20.0°C | 32.9°C | 16.0°C | 140 mm | 79% | 1.4 m/s | 5.6 |
| 1993 | 30.9°C | 25.0°C | 19.1°C | 35.7°C | 13.8°C | 90 mm | 67% | 1.6 m/s | 6 |
| 1992 | 29.2°C | 23.8°C | 18.4°C | 34.8°C | 13.8°C | 132 mm | 71% | 1.7 m/s | 5.8 |
| 1991 | 30.0°C | 24.4°C | 18.9°C | 36.3°C | 14.2°C | 143 mm | 70% | 1.5 m/s | 5.7 |
| 1990 | 28.5°C | 23.4°C | 18.4°C | 31.9°C | 13.8°C | 89 mm | 79% | 1.7 m/s | 5.4 |
| 1989 | 27.2°C | 22.5°C | 17.9°C | 30.6°C | 13.8°C | 193 mm | 83% | 1.4 m/s | 5.2 |
| 1988 | 31.5°C | 25.5°C | 19.5°C | 37.1°C | 9.5°C | 157 mm | 68% | 1.6 m/s | 5.6 |
| 1987 | 29.3°C | 24.0°C | 18.8°C | 34.1°C | 12.9°C | 154 mm | 79% | 1.2 m/s | 6.1 |
| 1986 | 31.0°C | 24.9°C | 18.8°C | 36.6°C | 11.0°C | 135 mm | 68% | 1.5 m/s | 5.5 |
| 1985 | 30.1°C | 24.1°C | 18.2°C | 33.9°C | 13.4°C | 135 mm | 67% | 1.6 m/s | 6.1 |
| 1984 ❄️ | 26.1°C | 21.5°C | 16.9°C | 29.9°C | 10.8°C | 163 mm | 84% | 1.6 m/s | 5.2 |
| 1983 | 29.0°C | 23.2°C | 17.4°C | 33.1°C | 11.4°C | 41 mm | 75% | 1.5 m/s | — |
| 1982 | 28.4°C | 22.9°C | 17.4°C | 33.1°C | 9.7°C | 87 mm | 76% | 1.3 m/s | — |
| 1981 | 30.3°C | 24.1°C | 17.9°C | 34.5°C | 12.9°C | 89 mm | 66% | 1.7 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 29.7°C with lows near 19.1°C (mean 24.4°C), based on 45 years of NASA POWER data.
July averages 121 mm of rainfall in Lansdale, a relatively wet time of year. The wettest on record was 202 mm in 2004.
The hottest July reached 39.2°C in 1999. The coldest dipped to 9.5°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 2.5°C. Daytime highs moved from 28.8°C to 30.8°C and overnight lows from 17.6°C to 20.6°C over the same span.
July is one of the warmer months of the year in Lansdale and a relatively wet time of year, so plan for around 29.7°C daytime highs and 19.1°C at night.
Not quite — July is the 12th coolest month in Lansdale, averaging 24.4°C.
For July in Lansdale, pack light layers you can adjust through the day, with typical highs of 29.7°C and lows of 19.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 74% — moderately humid.
Average wind speed in July is 1.5 m/s. The windiest July on record averaged 1.8 m/s (1999).
The wettest July on record was 2004 with 202 mm. On average, July sees 121 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 Lansdale behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
