August is one of the warmer months of the year in Collierville, with average highs near 33.5°C and lows around 21.4°C (mean 27.5°C). It is one of the drier months, averaging 88 mm of rainfall and 66% relative humidity across the period.
August is one of the warmer months of the year in Collierville. Across 45 years of records, the warmest August in Collierville was 2007 — when the month averaged 31.7°C — while the coldest was 1992 at 23.5°C. Typical August days reach 33.5°C with nights near 21.4°C. The long-term August temperature trend is broadly flat.
August is one of the drier months in Collierville, averaging 88 mm of rainfall. The wettest August on record was 2017 with 218 mm, while the driest was 1999 at 24 mm.
Relative humidity in Collierville during August averages 66%. The most humid August was 1992 at 77%, and the least humid was 1999 at 42%.
August receives about 5.8 kWh/m²/day of solar energy in Collierville. The sunniest Augusts were 1999, 2007 and 2010 at 6.3 kWh/m²/day, and the cloudiest were 1984 and 2017 at 5.1.
Average wind speed in Collierville during August is 1.1 m/s. The windiest Augusts were 1986 and 1999 at 1.4 m/s, while the calmest were 1993, 1996 and 2019 at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.6°C | 26.7°C | 27.9°C | 27.6°C | 27.3°C | -0.3°C |
| Avg High | 33.7°C | 32.7°C | 34.1°C | 33.4°C | 33.3°C | -0.4°C |
| Avg Low | 21.3°C | 20.7°C | 21.7°C | 21.6°C | 21.4°C | +0.1°C |
| Avg Rain | 75 mm | 84 mm | 87 mm | 94 mm | 107 mm | +32 mm |
August temperatures in Collierville have stayed relatively stable across the record.
August has ranged from a record low of 10.4°C (1986) to a record high of 43.1°C (2000).
Rainfall in August is one of the drier months, averaging 88 mm, with a wettest year of 218 mm.
A good time to visit Collierville
August is a good time to visit Collierville, with days averaging 33.5°C and nights around 21.4°C (mean 27.5°C, warmer than Collierville's yearly average) and higher rainfall. September and May are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 33.3°C | 26.9°C | 20.4°C | 39.5°C | 13.6°C | 32 mm | 62% | 1 m/s | 6.2 |
| 2024 | 35.8°C | 28.6°C | 21.5°C | 40.2°C | 16.2°C | 42 mm | 52% | 1.2 m/s | 6.2 |
| 2023 | 33.7°C | 27.7°C | 21.8°C | 39.6°C | 15.3°C | 126 mm | 71% | 1.2 m/s | 5.6 |
| 2022 | 32.6°C | 27.2°C | 21.8°C | 36.7°C | 18.1°C | 127 mm | 72% | 1 m/s | 5.8 |
| 2021 | 32.0°C | 26.9°C | 21.9°C | 36.1°C | 16.8°C | 146 mm | 75% | 1.2 m/s | 5.7 |
| 2020 | 32.2°C | 26.7°C | 21.2°C | 36.6°C | 17.7°C | 167 mm | 72% | 1.2 m/s | 5.5 |
| 2019 | 33.1°C | 27.3°C | 21.5°C | 36.3°C | 15.8°C | 104 mm | 72% | 0.9 m/s | 6 |
| 2018 | 33.3°C | 27.5°C | 21.7°C | 36.7°C | 17.3°C | 65 mm | 68% | 1.1 m/s | 5.8 |
| 2017 🌧️ | 32.0°C | 26.3°C | 20.7°C | 35.6°C | 15.1°C | 218 mm | 70% | 1.2 m/s | 5.1 |
| 2016 | 32.9°C | 28.0°C | 23.1°C | 36.2°C | 19.2°C | 100 mm | 75% | 1.1 m/s | 5.4 |
| 2015 | 32.2°C | 26.2°C | 20.1°C | 38.0°C | 14.4°C | 129 mm | 70% | 1.1 m/s | 6 |
| 2014 | 32.5°C | 27.0°C | 21.4°C | 36.9°C | 15.2°C | 85 mm | 69% | 1.1 m/s | 6 |
| 2013 | 32.6°C | 26.8°C | 20.9°C | 37.3°C | 13.7°C | 57 mm | 71% | 1 m/s | 5.5 |
| 2012 | 34.0°C | 27.5°C | 20.9°C | 38.7°C | 15.8°C | 61 mm | 61% | 1.3 m/s | 5.9 |
| 2011 | 35.8°C | 29.1°C | 22.4°C | 41.6°C | 17.5°C | 55 mm | 62% | 1.1 m/s | 5.9 |
| 2010 | 35.9°C | 29.8°C | 23.6°C | 40.0°C | 17.1°C | 64 mm | 64% | 1.1 m/s | 6.3 |
| 2009 | 30.7°C | 25.3°C | 19.9°C | 33.8°C | 14.1°C | 63 mm | 75% | 1.1 m/s | 6.2 |
| 2008 | 32.5°C | 26.5°C | 20.5°C | 38.8°C | 16.0°C | 108 mm | 67% | 1.2 m/s | 5.5 |
| 2007 🔥 | 38.5°C | 31.7°C | 24.8°C | 42.9°C | 21.3°C | 30 mm | 49% | 1.2 m/s | 6.3 |
| 2006 | 35.7°C | 29.2°C | 22.6°C | 40.5°C | 17.2°C | 98 mm | 61% | 1.1 m/s | 5.9 |
| 2005 | 35.7°C | 29.4°C | 23.2°C | 39.4°C | 19.4°C | 133 mm | 62% | 1.2 m/s | 5.9 |
| 2004 | 30.3°C | 24.3°C | 18.4°C | 35.2°C | 11.7°C | 99 mm | 71% | 1.3 m/s | 5.8 |
| 2003 | 32.6°C | 27.1°C | 21.6°C | 37.1°C | 18.2°C | 91 mm | 74% | 1 m/s | 5.9 |
| 2002 | 33.6°C | 27.6°C | 21.7°C | 39.1°C | 16.8°C | 105 mm | 68% | 1.1 m/s | 5.9 |
| 2001 | 33.5°C | 27.3°C | 21.2°C | 37.0°C | 16.0°C | 112 mm | 66% | 1.2 m/s | 5.4 |
| 2000 | 37.8°C | 30.4°C | 23.0°C | 43.1°C | 16.8°C | 31 mm | 47% | 1.3 m/s | 6.1 |
| 1999 | 36.8°C | 29.1°C | 21.5°C | 40.7°C | 16.7°C | 24 mm | 42% | 1.4 m/s | 6.3 |
| 1998 | 32.1°C | 26.3°C | 20.6°C | 37.5°C | 17.7°C | 82 mm | 71% | 1 m/s | 5.9 |
| 1997 | 30.6°C | 25.3°C | 20.0°C | 35.0°C | 13.5°C | 131 mm | 74% | 1.1 m/s | 5.8 |
| 1996 | 32.4°C | 26.3°C | 20.2°C | 36.3°C | 17.1°C | 56 mm | 67% | 0.9 m/s | 5.8 |
| 1995 | 34.0°C | 28.4°C | 22.8°C | 38.3°C | 18.2°C | 127 mm | 70% | 1.1 m/s | 5.9 |
| 1994 | 31.5°C | 25.3°C | 19.1°C | 35.7°C | 12.9°C | 63 mm | 70% | 1 m/s | 5.8 |
| 1993 | 33.4°C | 27.9°C | 22.5°C | 37.4°C | 17.6°C | 133 mm | 68% | 0.9 m/s | 5.5 |
| 1992 ❄️ | 28.7°C | 23.5°C | 18.3°C | 31.9°C | 13.2°C | 112 mm | 77% | 1 m/s | 5.3 |
| 1991 | 32.2°C | 26.5°C | 20.8°C | 36.6°C | 14.8°C | 83 mm | 69% | 1.1 m/s | 5.7 |
| 1990 | 35.7°C | 28.5°C | 21.4°C | 41.9°C | 13.9°C | 29 mm | 53% | 1.2 m/s | 6 |
| 1989 | 30.7°C | 25.5°C | 20.2°C | 34.6°C | 11.6°C | 42 mm | 76% | 1 m/s | 6 |
| 1988 | 35.8°C | 29.1°C | 22.3°C | 39.9°C | 13.7°C | 37 mm | 58% | 1.1 m/s | 5.8 |
| 1987 | 35.8°C | 29.3°C | 22.7°C | 40.5°C | 17.4°C | 59 mm | 58% | 1.2 m/s | 5.8 |
| 1986 | 33.2°C | 26.7°C | 20.1°C | 37.5°C | 10.4°C | 83 mm | 60% | 1.4 m/s | 5.7 |
| 1985 | 31.9°C | 26.2°C | 20.4°C | 36.9°C | 15.8°C | 123 mm | 71% | 1.2 m/s | 5.3 |
| 1984 | 32.2°C | 26.5°C | 20.8°C | 36.4°C | 15.2°C | 84 mm | 70% | 1.1 m/s | 5.1 |
| 1983 | 36.6°C | 29.9°C | 23.2°C | 40.0°C | 18.1°C | 30 mm | 55% | 1 m/s | — |
| 1982 | 33.4°C | 27.3°C | 21.2°C | 37.8°C | 17.4°C | 105 mm | 68% | 1.1 m/s | — |
| 1981 | 34.0°C | 27.5°C | 21.0°C | 38.9°C | 18.4°C | 111 mm | 62% | 1.1 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 33.5°C with lows near 21.4°C (mean 27.5°C), based on 45 years of NASA POWER data.
August averages 88 mm of rainfall in Collierville, one of the drier months. The wettest on record was 218 mm in 2017.
The hottest August reached 43.1°C in 2000. The coldest dipped to 10.4°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have held steady by about 0°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.3°C to 21.5°C while daytime highs eased from 33.6°C to 33.5°C, narrowing the gap between day and night.
August is one of the warmer months of the year in Collierville and one of the drier months, so plan for around 33.5°C daytime highs and 21.4°C at night.
Not quite — August is the 12th coolest month in Collierville, averaging 27.5°C.
For August in Collierville, pack light, breathable clothing and sun protection, with typical highs of 33.5°C and lows of 21.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 66% — moderately humid.
Average wind speed in August is 1.1 m/s. The windiest August on record averaged 1.4 m/s (1986).
The wettest August on record was 2017 with 218 mm. On average, August sees 88 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 Collierville 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.
