August is one of the warmer months of the year in Carlisle, with average highs near 29.2°C and lows around 16.9°C (mean 23°C). It is about average for rainfall, averaging 92 mm of rainfall and 67% relative humidity across the period.
August is one of the warmer months of the year in Carlisle. Across 45 years of records, the warmest Augusts in Carlisle were 1995 and 2016 — when the month averaged 25.2°C — while the coldest was 1994 at 20.7°C. Typical August days reach 29.2°C with nights near 16.9°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Carlisle, averaging 92 mm of rainfall. The wettest August on record was 2024 with 179 mm, while the driest was 1989 at 35 mm.
Relative humidity in Carlisle during August averages 67%. The most humid August was 2018 at 85%, and the least humid was 2002 at 57%.
August receives about 5.2 kWh/m²/day of solar energy in Carlisle. The sunniest Augusts were 2006, 2008 and 2015 at 5.6 kWh/m²/day, and the cloudiest were 1990 and 2000 at 4.6.
Average wind speed in Carlisle during August is 0.8 m/s. The windiest Augusts were 2000, 2011 and 2023, among others at 0.9 m/s, while the calmest was 1996 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.6°C | 22.7°C | 23.5°C | 23.0°C | 23.9°C | +1.3°C |
| Avg High | 29.0°C | 29.0°C | 29.5°C | 28.9°C | 30.0°C | +1°C |
| Avg Low | 16.2°C | 16.4°C | 17.4°C | 17.1°C | 17.8°C | +1.6°C |
| Avg Rain | 79 mm | 94 mm | 87 mm | 100 mm | 103 mm | +24 mm |
August temperatures in Carlisle have risen by about 1.4°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.8°C (1982) to a record high of 38.6°C (1988).
Rainfall in August is about average for rainfall, averaging 92 mm, with a wettest year of 179 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.1°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Carlisle
August is one of the best times to visit Carlisle. Expect days averaging 29.2°C and nights around 16.9°C (mean 23°C) — warmer than Carlisle's yearly average — with higher rainfall (92 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 | 29.1°C | 22.4°C | 15.7°C | 34.8°C | 8.5°C | 37 mm | 59% | 0.8 m/s | 5.5 |
| 2024 🌧️ | 28.8°C | 23.0°C | 17.2°C | 35.2°C | 9.6°C | 179 mm | 74% | 0.8 m/s | 4.9 |
| 2023 | 29.8°C | 23.6°C | 17.4°C | 33.8°C | 12.3°C | 79 mm | 64% | 0.9 m/s | 5.2 |
| 2022 | 31.1°C | 24.7°C | 18.2°C | 35.7°C | 12.8°C | 84 mm | 64% | 0.8 m/s | 5.5 |
| 2021 | 30.6°C | 25.0°C | 19.4°C | 37.2°C | 14.1°C | 138 mm | 71% | 0.7 m/s | 4.9 |
| 2020 | 30.6°C | 24.6°C | 18.7°C | 34.2°C | 14.4°C | 100 mm | 67% | 0.8 m/s | 5.3 |
| 2019 | 29.7°C | 23.7°C | 17.7°C | 34.0°C | 11.9°C | 66 mm | 68% | 0.7 m/s | 5.3 |
| 2018 | 27.5°C | 22.9°C | 18.3°C | 33.2°C | 12.7°C | 163 mm | 85% | 0.7 m/s | 4.9 |
| 2017 | 26.7°C | 21.2°C | 15.7°C | 32.2°C | 10.6°C | 107 mm | 75% | 0.7 m/s | 5.2 |
| 2016 | 31.3°C | 25.2°C | 19.1°C | 34.8°C | 12.7°C | 75 mm | 68% | 0.8 m/s | 5.5 |
| 2015 | 30.1°C | 23.4°C | 16.7°C | 35.3°C | 12.0°C | 66 mm | 61% | 0.8 m/s | 5.6 |
| 2014 | 27.3°C | 21.3°C | 15.3°C | 32.6°C | 9.8°C | 110 mm | 72% | 0.7 m/s | 5.1 |
| 2013 | 28.1°C | 22.2°C | 16.3°C | 32.1°C | 9.6°C | 85 mm | 70% | 0.7 m/s | 5.2 |
| 2012 | 29.0°C | 23.1°C | 17.3°C | 33.3°C | 12.6°C | 104 mm | 68% | 0.7 m/s | 5.4 |
| 2011 | 28.4°C | 22.7°C | 17.0°C | 33.4°C | 11.0°C | 147 mm | 71% | 0.9 m/s | 5 |
| 2010 | 30.6°C | 24.3°C | 18.0°C | 35.5°C | 11.4°C | 71 mm | 64% | 0.8 m/s | 4.9 |
| 2009 | 28.8°C | 23.3°C | 17.9°C | 33.6°C | 12.0°C | 94 mm | 73% | 0.7 m/s | 5.1 |
| 2008 | 27.9°C | 21.5°C | 15.1°C | 31.5°C | 11.4°C | 65 mm | 65% | 0.8 m/s | 5.6 |
| 2007 | 29.8°C | 23.9°C | 17.9°C | 35.7°C | 13.6°C | 152 mm | 69% | 0.8 m/s | 5 |
| 2006 | 30.8°C | 24.3°C | 17.8°C | 36.8°C | 11.1°C | 39 mm | 61% | 0.8 m/s | 5.6 |
| 2005 | 30.7°C | 24.7°C | 18.7°C | 36.6°C | 12.2°C | 72 mm | 66% | 0.8 m/s | 4.8 |
| 2004 | 27.3°C | 21.6°C | 16.0°C | 31.8°C | 10.5°C | 105 mm | 76% | 0.7 m/s | 5.1 |
| 2003 | 28.5°C | 23.4°C | 18.2°C | 32.0°C | 10.9°C | 129 mm | 79% | 0.7 m/s | 5 |
| 2002 | 31.5°C | 24.8°C | 18.2°C | 37.4°C | 12.7°C | 68 mm | 57% | 0.8 m/s | 5.4 |
| 2001 | 31.6°C | 25.0°C | 18.4°C | 37.3°C | 14.3°C | 74 mm | 62% | 0.8 m/s | 5.1 |
| 2000 | 27.7°C | 22.0°C | 16.2°C | 32.0°C | 8.4°C | 70 mm | 69% | 0.9 m/s | 4.6 |
| 1999 | 29.8°C | 23.1°C | 16.5°C | 35.5°C | 10.2°C | 107 mm | 59% | 0.9 m/s | 5.2 |
| 1998 | 29.9°C | 23.4°C | 16.8°C | 33.4°C | 9.1°C | 64 mm | 64% | 0.8 m/s | 5.2 |
| 1997 | 28.0°C | 21.8°C | 15.5°C | 34.6°C | 10.6°C | 97 mm | 64% | 0.8 m/s | 5.2 |
| 1996 | 26.7°C | 21.2°C | 15.7°C | 30.7°C | 12.6°C | 85 mm | 78% | 0.6 m/s | 5.5 |
| 1995 🔥 | 32.2°C | 25.2°C | 18.2°C | 36.1°C | 13.2°C | 36 mm | 58% | 0.8 m/s | 5.3 |
| 1994 ❄️ | 26.5°C | 20.7°C | 15.0°C | 32.8°C | 8.4°C | 174 mm | 76% | 0.8 m/s | 4.8 |
| 1993 | 30.4°C | 23.9°C | 17.3°C | 35.9°C | 10.5°C | 84 mm | 63% | 0.7 m/s | 5.2 |
| 1992 | 27.6°C | 21.1°C | 14.6°C | 32.6°C | 9.5°C | 56 mm | 67% | 0.8 m/s | 5.2 |
| 1991 | 30.8°C | 24.3°C | 17.7°C | 36.7°C | 12.8°C | 86 mm | 59% | 0.8 m/s | 5.2 |
| 1990 | 28.3°C | 22.2°C | 16.2°C | 33.3°C | 12.1°C | 147 mm | 71% | 0.7 m/s | 4.6 |
| 1989 | 27.5°C | 21.8°C | 16.1°C | 31.0°C | 8.9°C | 35 mm | 74% | 0.7 m/s | 4.9 |
| 1988 | 31.4°C | 24.7°C | 17.9°C | 38.6°C | 10.6°C | 95 mm | 59% | 0.9 m/s | 5.1 |
| 1987 | 30.4°C | 23.6°C | 16.8°C | 36.0°C | 9.4°C | 73 mm | 61% | 0.8 m/s | 4.8 |
| 1986 | 27.9°C | 21.6°C | 15.4°C | 32.3°C | 6.5°C | 87 mm | 66% | 0.8 m/s | 5.5 |
| 1985 | 28.1°C | 22.1°C | 16.1°C | 33.8°C | 11.6°C | 76 mm | 66% | 0.8 m/s | 4.9 |
| 1984 | 27.3°C | 21.8°C | 16.3°C | 30.5°C | 8.0°C | 148 mm | 79% | 0.7 m/s | 5.2 |
| 1983 | 31.7°C | 24.7°C | 17.7°C | 37.9°C | 10.0°C | 62 mm | 60% | 0.8 m/s | — |
| 1982 | 28.0°C | 21.1°C | 14.2°C | 34.1°C | 4.8°C | 55 mm | 63% | 0.8 m/s | — |
| 1981 | 29.0°C | 22.0°C | 14.9°C | 32.8°C | 8.5°C | 81 mm | 62% | 0.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.2°C with lows near 16.9°C (mean 23°C), based on 45 years of NASA POWER data.
August averages 92 mm of rainfall in Carlisle, about average for rainfall. The wettest on record was 179 mm in 2024.
The hottest August reached 38.6°C in 1988. The coldest dipped to 4.8°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.4°C. Daytime highs moved from 28.8°C to 29.9°C and overnight lows from 15.8°C to 17.6°C over the same span.
August is one of the warmer months of the year in Carlisle and about average for rainfall, so plan for around 29.2°C daytime highs and 16.9°C at night.
Not quite — August is the 11th coolest month in Carlisle, averaging 23°C.
For August in Carlisle, pack light layers you can adjust through the day, with typical highs of 29.2°C and lows of 16.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 67% — moderately humid.
Average wind speed in August is 0.8 m/s. The windiest August on record averaged 0.9 m/s (1988).
The wettest August on record was 2024 with 179 mm. On average, August sees 92 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.
