July is one of the warmer months of the year in Keller, with average highs near 36.7°C and lows around 23.9°C (mean 30.3°C). It is one of the drier months, averaging 52 mm of rainfall and 56% relative humidity across the period.
July is one of the warmer months of the year in Keller. Across 45 years of records, the warmest July in Keller was 2011 — when the month averaged 34.3°C — while the coldest was 2007 at 26.1°C. Typical July days reach 36.7°C with nights near 23.9°C. The long-term trend is warming, about 0.2°C per decade.
July is one of the drier months in Keller, averaging 52 mm of rainfall. The wettest July on record was 1995 with 132 mm, while the driest was 2011 at 0 mm.
Relative humidity in Keller during July averages 56%. The most humid July was 2007 at 81%, and the least humid was 2011 at 36%.
July receives about 6.9 kWh/m²/day of solar energy in Keller. The sunniest Julys were 1993, 2001 and 2022 at 7.5 kWh/m²/day, and the cloudiest was 2007 at 5.8.
Average wind speed in Keller during July is 2.8 m/s. The windiest July was 1993 at 4.5 m/s, while the calmest was 2007 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.8°C | 30.5°C | 30.1°C | 30.3°C | 31.1°C | +1.3°C |
| Avg High | 36.3°C | 37.1°C | 36.5°C | 36.5°C | 37.5°C | +1.2°C |
| Avg Low | 23.2°C | 23.9°C | 23.7°C | 24.1°C | 24.8°C | +1.6°C |
| Avg Rain | 48 mm | 65 mm | 51 mm | 55 mm | 33 mm | -14 mm |
July temperatures in Keller have risen by about 1.2°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 16°C (1990) to a record high of 45.7°C (2018).
Rainfall in July is one of the drier months, averaging 52 mm, with a wettest year of 132 mm.
A good time to visit Keller
July is a good time to visit Keller, with days averaging 36.7°C and nights around 23.9°C (mean 30.3°C, warmer than Keller's yearly average) and moderate rainfall. May and October 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 | 35.4°C | 29.5°C | 23.6°C | 42.6°C | 21.8°C | 48 mm | 63% | 2.8 m/s | 6.6 |
| 2024 | 37.2°C | 30.6°C | 24.0°C | 41.2°C | 21.1°C | 31 mm | 55% | 2.9 m/s | 6.7 |
| 2023 | 40.3°C | 33.2°C | 26.2°C | 44.9°C | 22.0°C | 18 mm | 44% | 2.8 m/s | 7 |
| 2022 | 41.2°C | 34.1°C | 26.9°C | 45.7°C | 23.9°C | 12 mm | 39% | 2.9 m/s | 7.5 |
| 2021 | 34.4°C | 28.8°C | 23.3°C | 39.8°C | 20.5°C | 53 mm | 68% | 2.1 m/s | 6.6 |
| 2020 | 36.7°C | 30.6°C | 24.5°C | 41.8°C | 22.2°C | 36 mm | 62% | 2.6 m/s | 6.8 |
| 2019 | 35.6°C | 29.5°C | 23.4°C | 40.7°C | 18.8°C | 28 mm | 62% | 2.8 m/s | 7.2 |
| 2018 | 38.9°C | 32.3°C | 25.8°C | 45.7°C | 21.9°C | 28 mm | 46% | 2.4 m/s | 6.8 |
| 2017 | 35.3°C | 29.7°C | 24.0°C | 39.9°C | 21.0°C | 84 mm | 66% | 2.2 m/s | 7.2 |
| 2016 | 36.4°C | 30.4°C | 24.4°C | 40.4°C | 22.3°C | 59 mm | 62% | 3.1 m/s | 7.3 |
| 2015 | 35.4°C | 29.5°C | 23.6°C | 40.9°C | 20.9°C | 61 mm | 65% | 3 m/s | 7.3 |
| 2014 | 34.7°C | 28.1°C | 21.5°C | 40.0°C | 17.2°C | 73 mm | 62% | 2.4 m/s | 6.5 |
| 2013 | 35.0°C | 28.8°C | 22.7°C | 40.7°C | 18.1°C | 80 mm | 57% | 2.6 m/s | 6.5 |
| 2012 | 38.3°C | 31.4°C | 24.6°C | 43.7°C | 21.9°C | 29 mm | 49% | 2.8 m/s | 7.1 |
| 2011 🔥 | 41.2°C | 34.3°C | 27.5°C | 44.1°C | 25.3°C | 0 mm | 36% | 2.8 m/s | 7.3 |
| 2010 | 34.4°C | 29.0°C | 23.6°C | 38.9°C | 21.6°C | 107 mm | 69% | 2.6 m/s | 6.4 |
| 2009 | 37.7°C | 30.9°C | 24.1°C | 43.2°C | 19.0°C | 94 mm | 51% | 2.5 m/s | 6.6 |
| 2008 | 37.9°C | 31.0°C | 24.2°C | 42.2°C | 19.3°C | 27 mm | 48% | 2.9 m/s | 7.2 |
| 2007 ❄️ | 30.4°C | 26.1°C | 21.7°C | 33.1°C | 19.0°C | 97 mm | 81% | 1.9 m/s | 5.8 |
| 2006 | 38.4°C | 31.5°C | 24.5°C | 43.1°C | 18.1°C | 17 mm | 48% | 3.3 m/s | 7 |
| 2005 | 36.6°C | 30.0°C | 23.4°C | 42.3°C | 19.7°C | 60 mm | 55% | 2.3 m/s | 6.5 |
| 2004 | 33.6°C | 27.8°C | 21.9°C | 39.4°C | 18.9°C | 103 mm | 68% | 2.6 m/s | 6.9 |
| 2003 | 38.4°C | 31.3°C | 24.2°C | 42.5°C | 21.7°C | 11 mm | 50% | 2.7 m/s | 7.1 |
| 2002 | 34.3°C | 28.7°C | 23.1°C | 40.5°C | 21.4°C | 76 mm | 67% | 2.5 m/s | 6.3 |
| 2001 | 39.1°C | 32.2°C | 25.4°C | 43.3°C | 20.4°C | 16 mm | 49% | 3.2 m/s | 7.5 |
| 2000 | 38.6°C | 31.4°C | 24.2°C | 43.0°C | 20.8°C | 7 mm | 45% | 3 m/s | 7.1 |
| 1999 | 36.8°C | 30.3°C | 23.7°C | 41.9°C | 19.0°C | 21 mm | 55% | 3.2 m/s | 7.2 |
| 1998 | 40.5°C | 33.7°C | 27.0°C | 44.5°C | 24.1°C | 12 mm | 41% | 3.2 m/s | 7.3 |
| 1997 | 36.7°C | 30.2°C | 23.6°C | 40.3°C | 19.1°C | 50 mm | 57% | 2.6 m/s | 7.1 |
| 1996 | 36.9°C | 30.8°C | 24.6°C | 44.8°C | 22.5°C | 103 mm | 56% | 2.7 m/s | 6.6 |
| 1995 🌧️ | 37.3°C | 30.5°C | 23.8°C | 45.4°C | 19.3°C | 132 mm | 56% | 3 m/s | 6.8 |
| 1994 | 36.0°C | 29.4°C | 22.7°C | 41.0°C | 17.7°C | 109 mm | 58% | 2.9 m/s | 6.8 |
| 1993 | 39.4°C | 32.1°C | 24.8°C | 43.3°C | 22.3°C | 2 mm | 49% | 4.5 m/s | 7.5 |
| 1992 | 35.1°C | 28.9°C | 22.6°C | 38.8°C | 20.5°C | 59 mm | 65% | 3.5 m/s | 6.7 |
| 1991 | 36.8°C | 30.3°C | 23.7°C | 41.5°C | 18.0°C | 77 mm | 54% | 2.8 m/s | 6.8 |
| 1990 | 35.3°C | 28.9°C | 22.6°C | 42.1°C | 16.0°C | 86 mm | 56% | 3.1 m/s | 6.3 |
| 1989 | 34.5°C | 28.3°C | 22.0°C | 40.4°C | 18.4°C | 51 mm | 64% | 2.5 m/s | 6.6 |
| 1988 | 36.4°C | 29.9°C | 23.3°C | 40.6°C | 19.5°C | 73 mm | 55% | 2.7 m/s | 6.7 |
| 1987 | 35.0°C | 28.8°C | 22.6°C | 41.1°C | 17.7°C | 45 mm | 63% | 3.3 m/s | 6.7 |
| 1986 | 38.5°C | 31.1°C | 23.6°C | 44.8°C | 21.4°C | 31 mm | 48% | 3.4 m/s | 7.3 |
| 1985 | 36.8°C | 30.1°C | 23.4°C | 41.8°C | 19.1°C | 47 mm | 52% | 2.5 m/s | 6.8 |
| 1984 | 38.1°C | 31.0°C | 23.9°C | 41.6°C | 18.7°C | 29 mm | 41% | 2.7 m/s | 6.5 |
| 1983 | 36.3°C | 29.5°C | 22.7°C | 41.9°C | 16.3°C | 41 mm | 57% | 3.2 m/s | — |
| 1982 | 34.3°C | 28.6°C | 22.8°C | 38.5°C | 19.8°C | 76 mm | 66% | 2.5 m/s | — |
| 1981 | 37.2°C | 30.7°C | 24.3°C | 43.2°C | 21.5°C | 36 mm | 58% | 3.3 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 36.7°C with lows near 23.9°C (mean 30.3°C), based on 45 years of NASA POWER data.
July averages 52 mm of rainfall in Keller, one of the drier months. The wettest on record was 132 mm in 1995.
The hottest July reached 45.7°C in 2018. The coldest dipped to 16°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.2°C. Daytime highs moved from 36.5°C to 37.7°C and overnight lows from 23.4°C to 24.8°C over the same span.
July is one of the warmer months of the year in Keller and one of the drier months, so plan for around 36.7°C daytime highs and 23.9°C at night.
Not quite — July is the 11th coolest month in Keller, averaging 30.3°C.
For July in Keller, pack light, breathable clothing and sun protection, with typical highs of 36.7°C and lows of 23.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 56% — moderately humid.
Average wind speed in July is 2.8 m/s. The windiest July on record averaged 4.5 m/s (1993).
The wettest July on record was 1995 with 132 mm. On average, July sees 52 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 Keller 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.
