August is one of the warmer months of the year in Carlisle, with average highs near 17.4°C and lows around 10.4°C (mean 13.9°C). It is a relatively wet time of year, averaging 102 mm of rainfall and 86% relative humidity across the period.
August is one of the warmer months of the year in Carlisle. Across 45 years of records, the warmest August in Carlisle was 1995 — when the month averaged 16°C — while the coldest was 1986 at 11.4°C. Typical August days reach 17.4°C with nights near 10.4°C. The long-term trend is warming, about 0.2°C per decade.
August is a relatively wet time of year in Carlisle, averaging 102 mm of rainfall. The wettest August on record was 2004 with 232 mm, while the driest was 1995 at 19 mm.
Relative humidity in Carlisle during August averages 86%. The most humid August was 2008 at 90%, and the least humid was 1984 at 81%.
August receives about 3.9 kWh/m²/day of solar energy in Carlisle. The sunniest August was 1995 at 4.9 kWh/m²/day, and the cloudiest was 2008 at 3.2.
Average wind speed in Carlisle during August is 3.2 m/s. The windiest August was 1985 at 4.6 m/s, while the calmest was 1983 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.4°C | 14.0°C | 14.2°C | 13.6°C | 14.7°C | +1.3°C |
| Avg High | 16.8°C | 17.7°C | 17.6°C | 16.9°C | 18.3°C | +1.5°C |
| Avg Low | 9.8°C | 10.3°C | 10.7°C | 10.3°C | 11.1°C | +1.3°C |
| Avg Rain | 95 mm | 79 mm | 115 mm | 122 mm | 97 mm | +2 mm |
August temperatures in Carlisle have risen by about 0.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.3°C (1993) to a record high of 26.8°C (1990).
Rainfall in August is a relatively wet time of year, averaging 102 mm, with a wettest year of 232 mm.
One of the best times to visit Carlisle
August is one of the best times to visit Carlisle. Expect days averaging 17.4°C and nights around 10.4°C (mean 13.9°C) — warmer than Carlisle's yearly average — with higher rainfall (102 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 | 19.1°C | 15.4°C | 11.6°C | 25.4°C | 7.5°C | 60 mm | 84% | 3.3 m/s | 4.3 |
| 2024 | 17.2°C | 14.0°C | 10.9°C | 21.1°C | 6.8°C | 146 mm | 87% | 4.3 m/s | 3.9 |
| 2023 | 17.7°C | 14.4°C | 11.0°C | 23.7°C | 7.7°C | 89 mm | 87% | 3.2 m/s | 4 |
| 2022 | 19.4°C | 15.3°C | 11.2°C | 25.5°C | 7.2°C | 62 mm | 83% | 2.7 m/s | 4.4 |
| 2021 | 18.0°C | 14.4°C | 10.8°C | 22.0°C | 7.9°C | 83 mm | 86% | 2.7 m/s | 3.9 |
| 2020 | 18.4°C | 14.7°C | 11.0°C | 25.4°C | 4.5°C | 142 mm | 87% | 3.3 m/s | 3.7 |
| 2019 | 18.1°C | 15.0°C | 11.9°C | 24.5°C | 7.9°C | 162 mm | 88% | 3.7 m/s | 3.8 |
| 2018 | 17.1°C | 13.9°C | 10.8°C | 20.9°C | 6.3°C | 115 mm | 87% | 3.2 m/s | 3.6 |
| 2017 | 16.3°C | 13.1°C | 10.0°C | 19.4°C | 6.5°C | 121 mm | 88% | 3.4 m/s | 3.9 |
| 2016 | 17.4°C | 14.0°C | 10.7°C | 21.1°C | 6.4°C | 119 mm | 87% | 3.5 m/s | 4 |
| 2015 | 16.8°C | 13.5°C | 10.2°C | 20.9°C | 7.8°C | 100 mm | 86% | 3.4 m/s | 4 |
| 2014 | 15.7°C | 12.4°C | 9.0°C | 19.0°C | 4.9°C | 122 mm | 86% | 3.6 m/s | 4 |
| 2013 | 17.6°C | 14.2°C | 10.7°C | 21.7°C | 7.3°C | 105 mm | 87% | 3.2 m/s | 3.8 |
| 2012 | 17.1°C | 13.9°C | 10.7°C | 20.4°C | 5.3°C | 149 mm | 89% | 3 m/s | 3.7 |
| 2011 | 16.1°C | 12.8°C | 9.5°C | 19.5°C | 7.0°C | 141 mm | 87% | 2.9 m/s | 3.5 |
| 2010 | 16.7°C | 13.0°C | 9.2°C | 20.0°C | 4.9°C | 82 mm | 86% | 3.1 m/s | 4.1 |
| 2009 | 17.1°C | 14.2°C | 11.3°C | 19.5°C | 8.5°C | 171 mm | 88% | 4.1 m/s | 3.6 |
| 2008 | 17.0°C | 14.2°C | 11.4°C | 19.7°C | 8.3°C | 173 mm | 90% | 3.3 m/s | 3.2 |
| 2007 | 16.8°C | 13.2°C | 9.7°C | 20.4°C | 6.9°C | 91 mm | 88% | 3.3 m/s | 4 |
| 2006 | 17.4°C | 13.9°C | 10.3°C | 22.0°C | 8.1°C | 87 mm | 86% | 3.1 m/s | 3.7 |
| 2005 | 17.5°C | 13.7°C | 9.9°C | 21.9°C | 6.9°C | 79 mm | 86% | 3.2 m/s | 4.3 |
| 2004 🌧️ | 18.4°C | 15.1°C | 11.7°C | 23.4°C | 6.5°C | 232 mm | 88% | 2.9 m/s | 3.8 |
| 2003 | 19.0°C | 15.1°C | 11.2°C | 25.3°C | 6.5°C | 27 mm | 85% | 2.5 m/s | 4.4 |
| 2002 | 18.2°C | 14.6°C | 10.9°C | 22.0°C | 8.0°C | 92 mm | 88% | 2.6 m/s | 3.7 |
| 2001 | 17.4°C | 13.9°C | 10.4°C | 20.2°C | 7.0°C | 99 mm | 87% | 2.8 m/s | 3.6 |
| 2000 | 17.6°C | 14.0°C | 10.3°C | 22.8°C | 6.5°C | 99 mm | 87% | 2.6 m/s | 3.9 |
| 1999 | 17.3°C | 13.6°C | 9.9°C | 24.9°C | 4.6°C | 77 mm | 85% | 3.2 m/s | 3.8 |
| 1998 | 16.9°C | 13.5°C | 10.0°C | 21.6°C | 5.4°C | 82 mm | 88% | 3.7 m/s | 3.9 |
| 1997 | 20.1°C | 15.9°C | 11.7°C | 24.6°C | 8.5°C | 78 mm | 86% | 2.8 m/s | 4.1 |
| 1996 | 18.0°C | 14.2°C | 10.4°C | 23.7°C | 7.6°C | 73 mm | 84% | 2.8 m/s | 4 |
| 1995 🔥 | 20.6°C | 16.0°C | 11.5°C | 25.3°C | 7.0°C | 19 mm | 81% | 2.5 m/s | 4.9 |
| 1994 | 16.3°C | 12.8°C | 9.3°C | 20.6°C | 5.3°C | 106 mm | 86% | 3.1 m/s | 4 |
| 1993 | 15.8°C | 11.9°C | 8.1°C | 20.7°C | 4.3°C | 55 mm | 86% | 2.9 m/s | 4 |
| 1992 | 15.6°C | 12.6°C | 9.5°C | 18.4°C | 5.6°C | 145 mm | 86% | 4.2 m/s | 3.9 |
| 1991 | 18.3°C | 14.6°C | 10.9°C | 23.4°C | 7.5°C | 68 mm | 86% | 3.2 m/s | 3.9 |
| 1990 | 18.5°C | 14.9°C | 11.3°C | 26.8°C | 6.4°C | 90 mm | 85% | 3.7 m/s | 3.9 |
| 1989 | 17.0°C | 13.6°C | 10.1°C | 20.5°C | 5.6°C | 119 mm | 84% | 4.2 m/s | 3.8 |
| 1988 | 16.1°C | 12.9°C | 9.7°C | 23.1°C | 7.0°C | 117 mm | 86% | 3.9 m/s | 4 |
| 1987 | 16.3°C | 13.0°C | 9.8°C | 20.7°C | 5.6°C | 100 mm | 86% | 3.1 m/s | 3.6 |
| 1986 ❄️ | 14.8°C | 11.4°C | 7.9°C | 18.2°C | 5.2°C | 118 mm | 83% | 3.3 m/s | 3.5 |
| 1985 | 14.7°C | 12.1°C | 9.4°C | 17.6°C | 7.1°C | 184 mm | 89% | 4.6 m/s | 3.4 |
| 1984 | 19.5°C | 15.4°C | 11.3°C | 24.2°C | 7.3°C | 45 mm | 81% | 2.7 m/s | 4.3 |
| 1983 | 19.0°C | 14.8°C | 10.5°C | 22.6°C | 6.8°C | 34 mm | 83% | 2.3 m/s | — |
| 1982 | 16.7°C | 13.4°C | 10.0°C | 23.9°C | 4.7°C | 100 mm | 86% | 4 m/s | — |
| 1981 | 17.5°C | 13.6°C | 9.7°C | 21.9°C | 6.3°C | 36 mm | 86% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 17.4°C with lows near 10.4°C (mean 13.9°C), based on 45 years of NASA POWER data.
August averages 102 mm of rainfall in Carlisle, a relatively wet time of year. The wettest on record was 232 mm in 2004.
The hottest August reached 26.8°C in 1990. The coldest dipped to 4.3°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.8°C. Daytime highs moved from 17.5°C to 18.3°C and overnight lows from 10.2°C to 11.1°C over the same span.
August is one of the warmer months of the year in Carlisle and a relatively wet time of year, so plan for around 17.4°C daytime highs and 10.4°C at night.
Not quite — August is the 11th coolest month in Carlisle, averaging 13.9°C.
For August in Carlisle, pack light layers you can adjust through the day, with typical highs of 17.4°C and lows of 10.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 3.2 m/s. The windiest August on record averaged 4.6 m/s (1985).
The wettest August on record was 2004 with 232 mm. On average, August sees 102 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 Carlisle behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
