July is one of the warmer months of the year in Collierville, with average highs near 32.8°C and lows around 21.9°C (mean 27.4°C). It is about average for rainfall, averaging 110 mm of rainfall and 71% relative humidity across the period.
July is one of the warmer months of the year in Collierville. Across 45 years of records, the warmest July in Collierville was 1986 — when the month averaged 30.2°C — while the coldest was 2014 at 23.7°C. Typical July days reach 32.8°C with nights near 21.9°C. The long-term July temperature trend is broadly flat.
July is about average for rainfall in Collierville, averaging 110 mm of rainfall. The wettest July on record was 2009 with 235 mm, while the driest was 1983 at 40 mm.
Relative humidity in Collierville during July averages 71%. The most humid July was 1989 at 84%, and the least humid was 2000 at 54%.
July receives about 6.3 kWh/m²/day of solar energy in Collierville. The sunniest Julys were 1986, 2017 and 2025 at 6.9 kWh/m²/day, and the cloudiest was 1998 at 5.5.
Average wind speed in Collierville during July is 1.1 m/s. The windiest Julys were 2000 and 2006 at 1.4 m/s, while the calmest were 2011 and 2020 at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.3°C | 27.2°C | 27.3°C | 27.3°C | 27.8°C | +0.5°C |
| Avg High | 33.0°C | 32.6°C | 33.2°C | 32.5°C | 33.0°C | 0°C |
| Avg Low | 21.6°C | 22.0°C | 21.4°C | 22.1°C | 22.6°C | +1°C |
| Avg Rain | 108 mm | 112 mm | 103 mm | 121 mm | 107 mm | -1 mm |
July temperatures in Collierville have risen by about 0.8°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 12.9°C (1983) to a record high of 43.7°C (1986).
Rainfall in July is about average for rainfall, averaging 110 mm, with a wettest year of 235 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Collierville
July is a good time to visit Collierville, with days averaging 32.8°C and nights around 21.9°C (mean 27.4°C, warmer than Collierville's yearly average) and higher rainfall. September and May are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.1°C | 27.6°C | 23.0°C | 35.5°C | 20.2°C | 64 mm | 78% | 1 m/s | 6.9 |
| 2024 | 33.7°C | 28.1°C | 22.4°C | 39.4°C | 18.8°C | 111 mm | 67% | 1.1 m/s | 6.1 |
| 2023 | 32.9°C | 27.5°C | 22.2°C | 37.7°C | 18.4°C | 135 mm | 73% | 1.1 m/s | 6.2 |
| 2022 | 36.2°C | 30.0°C | 23.7°C | 39.4°C | 20.5°C | 94 mm | 64% | 1.2 m/s | 6.6 |
| 2021 | 30.7°C | 26.1°C | 21.5°C | 35.4°C | 15.7°C | 134 mm | 81% | 1.1 m/s | 6.3 |
| 2020 | 32.4°C | 27.6°C | 22.8°C | 34.9°C | 20.8°C | 103 mm | 78% | 0.9 m/s | 6.6 |
| 2019 | 30.8°C | 26.2°C | 21.7°C | 33.7°C | 14.8°C | 156 mm | 81% | 1.2 m/s | 6.2 |
| 2018 | 31.7°C | 27.0°C | 22.3°C | 34.5°C | 18.8°C | 98 mm | 78% | 1 m/s | 6.5 |
| 2017 | 33.9°C | 28.2°C | 22.4°C | 38.3°C | 17.0°C | 109 mm | 69% | 1 m/s | 6.9 |
| 2016 | 33.5°C | 28.5°C | 23.5°C | 37.9°C | 20.5°C | 135 mm | 72% | 1.1 m/s | 6.3 |
| 2015 | 32.1°C | 27.5°C | 22.9°C | 36.6°C | 20.0°C | 127 mm | 79% | 1.2 m/s | 6.3 |
| 2014 ❄️ | 28.6°C | 23.7°C | 18.8°C | 33.0°C | 14.1°C | 125 mm | 78% | 1.1 m/s | 6.5 |
| 2013 | 30.7°C | 25.4°C | 20.1°C | 34.3°C | 15.7°C | 119 mm | 76% | 1.2 m/s | 6.1 |
| 2012 | 34.7°C | 29.1°C | 23.5°C | 40.8°C | 19.7°C | 113 mm | 66% | 1.1 m/s | 6.3 |
| 2011 | 35.1°C | 29.2°C | 23.2°C | 39.0°C | 18.3°C | 67 mm | 69% | 0.9 m/s | 6.8 |
| 2010 | 33.6°C | 28.2°C | 22.9°C | 36.8°C | 16.5°C | 158 mm | 72% | 1.1 m/s | 6.7 |
| 2009 🌧️ | 30.0°C | 25.0°C | 20.0°C | 35.0°C | 14.3°C | 235 mm | 76% | 1.2 m/s | 5.8 |
| 2008 | 34.1°C | 27.7°C | 21.4°C | 39.0°C | 15.6°C | 73 mm | 64% | 1 m/s | 6.6 |
| 2007 | 33.0°C | 27.0°C | 21.1°C | 36.4°C | 16.1°C | 93 mm | 67% | 1.1 m/s | 6.3 |
| 2006 | 35.1°C | 28.5°C | 22.0°C | 40.0°C | 15.7°C | 52 mm | 59% | 1.4 m/s | 6.5 |
| 2005 | 33.4°C | 27.8°C | 22.2°C | 37.8°C | 18.6°C | 128 mm | 68% | 1.2 m/s | 6.1 |
| 2004 | 29.7°C | 25.2°C | 20.6°C | 33.8°C | 14.7°C | 99 mm | 82% | 1.1 m/s | 6.2 |
| 2003 | 31.2°C | 26.1°C | 21.0°C | 35.2°C | 16.5°C | 124 mm | 75% | 1.1 m/s | 6.3 |
| 2002 | 34.2°C | 28.3°C | 22.4°C | 37.6°C | 19.9°C | 98 mm | 68% | 1 m/s | 6.1 |
| 2001 | 35.7°C | 28.9°C | 22.0°C | 38.4°C | 16.1°C | 75 mm | 61% | 1.1 m/s | 6.1 |
| 2000 | 35.9°C | 28.7°C | 21.5°C | 39.7°C | 16.1°C | 50 mm | 54% | 1.4 m/s | 6.5 |
| 1999 | 34.6°C | 28.7°C | 22.7°C | 40.6°C | 16.2°C | 52 mm | 65% | 1 m/s | 6.8 |
| 1998 | 33.9°C | 28.7°C | 23.6°C | 39.3°C | 21.0°C | 194 mm | 72% | 1.1 m/s | 5.5 |
| 1997 | 31.2°C | 26.3°C | 21.5°C | 34.8°C | 14.7°C | 72 mm | 79% | 1 m/s | 6.7 |
| 1996 | 33.1°C | 27.0°C | 21.0°C | 37.8°C | 15.4°C | 155 mm | 67% | 1.3 m/s | 6 |
| 1995 | 33.2°C | 27.5°C | 21.8°C | 38.0°C | 16.9°C | 154 mm | 70% | 1.3 m/s | 6.1 |
| 1994 | 29.4°C | 25.3°C | 21.2°C | 32.3°C | 14.7°C | 152 mm | 82% | 1.1 m/s | 6 |
| 1993 | 35.2°C | 29.3°C | 23.4°C | 39.8°C | 20.7°C | 52 mm | 67% | 1.2 m/s | 6.8 |
| 1992 | 31.2°C | 26.4°C | 21.7°C | 35.2°C | 19.4°C | 164 mm | 78% | 1.3 m/s | 6.1 |
| 1991 | 31.0°C | 26.3°C | 21.7°C | 33.9°C | 16.8°C | 53 mm | 79% | 1.1 m/s | 6.7 |
| 1990 | 32.9°C | 26.9°C | 21.0°C | 37.5°C | 14.4°C | 71 mm | 66% | 1.1 m/s | 6.5 |
| 1989 | 29.3°C | 25.2°C | 21.1°C | 32.1°C | 17.3°C | 192 mm | 84% | 1.1 m/s | 5.9 |
| 1988 | 33.4°C | 27.6°C | 21.8°C | 37.7°C | 17.0°C | 186 mm | 67% | 1.1 m/s | 5.6 |
| 1987 | 32.7°C | 27.1°C | 21.5°C | 38.6°C | 15.6°C | 74 mm | 69% | 1.2 m/s | 6.1 |
| 1986 🔥 | 37.0°C | 30.2°C | 23.3°C | 43.7°C | 17.7°C | 53 mm | 56% | 1.3 m/s | 6.9 |
| 1985 | 33.2°C | 26.9°C | 20.6°C | 37.7°C | 16.1°C | 114 mm | 66% | 1.2 m/s | 6.4 |
| 1984 | 32.6°C | 26.3°C | 20.1°C | 35.6°C | 15.5°C | 85 mm | 66% | 1.2 m/s | 6 |
| 1983 | 32.3°C | 27.0°C | 21.8°C | 36.6°C | 12.9°C | 40 mm | 72% | 1.1 m/s | — |
| 1982 | 32.5°C | 27.4°C | 22.3°C | 36.4°C | 18.4°C | 98 mm | 72% | 1 m/s | — |
| 1981 | 33.7°C | 27.9°C | 22.1°C | 37.2°C | 15.8°C | 129 mm | 69% | 1.1 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 32.8°C with lows near 21.9°C (mean 27.4°C), based on 45 years of NASA POWER data.
July averages 110 mm of rainfall in Collierville, about average for rainfall. The wettest on record was 235 mm in 2009.
The hottest July reached 43.7°C in 1986. The coldest dipped to 12.9°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.8°C. Daytime highs moved from 32.9°C to 33.1°C and overnight lows from 21.4°C to 22.6°C over the same span.
July is one of the warmer months of the year in Collierville and about average for rainfall, so plan for around 32.8°C daytime highs and 21.9°C at night.
Not quite — July is the 11th coolest month in Collierville, averaging 27.4°C.
For July in Collierville, pack light, breathable clothing and sun protection, with typical highs of 32.8°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 71% — moderately humid.
Average wind speed in July is 1.1 m/s. The windiest July on record averaged 1.4 m/s (2000).
The wettest July on record was 2009 with 235 mm. On average, July sees 110 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 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.
