June is one of the warmer months of the year in Keller, with average highs near 33.5°C and lows around 21.5°C (mean 27.5°C). It is a relatively wet time of year, averaging 96 mm of rainfall and 67% relative humidity across the period.
June is one of the warmer months of the year in Keller. Across 45 years of records, the warmest June in Keller was 2011 — when the month averaged 31.5°C — while the coldest was 1989 at 24.2°C. Typical June days reach 33.5°C with nights near 21.5°C. The long-term trend is warming, about 0.5°C per decade.
June is a relatively wet time of year in Keller, averaging 96 mm of rainfall. The wettest June on record was 2004 with 262 mm, while the driest was 2005 at 16 mm.
Relative humidity in Keller during June averages 67%. The most humid June was 2007 at 83%, and the least humid was 2011 at 45%.
June receives about 6.8 kWh/m²/day of solar energy in Keller. The sunniest June was 2011 at 7.8 kWh/m²/day, and the cloudiest was 2000 at 5.4.
Average wind speed in Keller during June is 2.9 m/s. The windiest June was 1998 at 4.3 m/s, while the calmest were 1986 and 2016 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 27.7°C | 27.4°C | 28.2°C | 28.3°C | +2.3°C |
| Avg High | 31.7°C | 34.0°C | 33.5°C | 34.1°C | 34.1°C | +2.4°C |
| Avg Low | 20.3°C | 21.4°C | 21.4°C | 22.2°C | 22.5°C | +2.2°C |
| Avg Rain | 119 mm | 78 mm | 113 mm | 90 mm | 70 mm | -49 mm |
June temperatures in Keller have risen by about 2.1°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 10°C (1983) to a record high of 44.9°C (1994).
Rainfall in June is a relatively wet time of year, averaging 96 mm, with a wettest year of 262 mm.
A good time to visit Keller
June is a good time to visit Keller, with days averaging 33.5°C and nights around 21.5°C (mean 27.5°C, warmer than Keller's yearly average) and higher rainfall. May and October are marginally more temperate, but June still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.8°C | 27.7°C | 22.6°C | 37.3°C | 16.7°C | 74 mm | 73% | 2.7 m/s | 6.9 |
| 2024 | 33.8°C | 28.3°C | 22.9°C | 40.1°C | 19.8°C | 96 mm | 71% | 2.7 m/s | 6.9 |
| 2023 | 36.3°C | 29.7°C | 23.2°C | 44.4°C | 19.7°C | 34 mm | 63% | 2.5 m/s | 6.7 |
| 2022 | 37.7°C | 30.8°C | 23.9°C | 42.5°C | 19.1°C | 45 mm | 50% | 2.8 m/s | 7.3 |
| 2021 | 30.7°C | 26.0°C | 21.4°C | 35.7°C | 15.3°C | 71 mm | 79% | 2.3 m/s | 6.4 |
| 2020 | 33.2°C | 27.2°C | 21.2°C | 37.4°C | 15.1°C | 100 mm | 65% | 2.8 m/s | 7.3 |
| 2019 | 31.4°C | 26.3°C | 21.2°C | 36.2°C | 16.1°C | 98 mm | 76% | 2.6 m/s | 6.6 |
| 2018 | 37.4°C | 30.9°C | 24.3°C | 41.5°C | 20.2°C | 25 mm | 54% | 3.5 m/s | 7.2 |
| 2017 | 31.6°C | 26.3°C | 21.1°C | 39.3°C | 17.3°C | 168 mm | 74% | 2.6 m/s | 6.5 |
| 2016 | 31.5°C | 26.7°C | 21.8°C | 35.6°C | 15.9°C | 92 mm | 76% | 2.2 m/s | 7 |
| 2015 | 30.8°C | 26.1°C | 21.5°C | 33.9°C | 14.4°C | 150 mm | 80% | 2.4 m/s | 6.9 |
| 2014 | 32.2°C | 27.0°C | 21.9°C | 36.8°C | 17.1°C | 119 mm | 71% | 3.5 m/s | 6.1 |
| 2013 | 35.1°C | 28.2°C | 21.2°C | 42.2°C | 15.0°C | 68 mm | 59% | 2.9 m/s | 7.2 |
| 2012 | 34.9°C | 28.4°C | 21.9°C | 42.9°C | 14.2°C | 65 mm | 61% | 2.8 m/s | 7 |
| 2011 🔥 | 39.2°C | 31.5°C | 23.8°C | 43.3°C | 20.7°C | 36 mm | 45% | 3.9 m/s | 7.8 |
| 2010 | 36.5°C | 30.1°C | 23.6°C | 40.5°C | 19.7°C | 79 mm | 59% | 3.2 m/s | 6.7 |
| 2009 | 35.6°C | 28.7°C | 21.9°C | 42.2°C | 15.4°C | 70 mm | 59% | 3 m/s | 7.1 |
| 2008 | 37.2°C | 30.1°C | 23.0°C | 40.2°C | 20.1°C | 49 mm | 54% | 4 m/s | 7.3 |
| 2007 | 28.9°C | 25.1°C | 21.2°C | 32.5°C | 17.2°C | 259 mm | 83% | 2.7 m/s | 5.7 |
| 2006 | 36.7°C | 29.1°C | 21.6°C | 41.1°C | 16.6°C | 35 mm | 48% | 2.8 m/s | 7.5 |
| 2005 | 36.4°C | 29.3°C | 22.2°C | 40.9°C | 18.5°C | 16 mm | 52% | 2.8 m/s | 7.1 |
| 2004 🌧️ | 29.4°C | 25.3°C | 21.2°C | 37.2°C | 17.6°C | 262 mm | 82% | 2.5 m/s | 5.6 |
| 2003 | 31.8°C | 26.0°C | 20.2°C | 37.6°C | 15.6°C | 131 mm | 70% | 2.4 m/s | 6.5 |
| 2002 | 33.4°C | 27.1°C | 20.8°C | 36.0°C | 17.0°C | 87 mm | 64% | 2.6 m/s | 6.7 |
| 2001 | 34.9°C | 27.9°C | 20.9°C | 38.1°C | 15.4°C | 50 mm | 60% | 3.4 m/s | 7.1 |
| 2000 | 30.7°C | 25.7°C | 20.6°C | 35.7°C | 13.0°C | 174 mm | 75% | 3.2 m/s | 5.4 |
| 1999 | 32.6°C | 27.1°C | 21.5°C | 36.6°C | 16.4°C | 68 mm | 70% | 3.1 m/s | 6.1 |
| 1998 | 37.7°C | 30.4°C | 23.1°C | 42.1°C | 13.4°C | 47 mm | 51% | 4.3 m/s | 7.3 |
| 1997 | 32.0°C | 26.3°C | 20.5°C | 36.7°C | 15.2°C | 96 mm | 72% | 2.6 m/s | 6.6 |
| 1996 | 36.0°C | 29.0°C | 22.0°C | 42.1°C | 15.2°C | 64 mm | 57% | 2.8 m/s | 7.2 |
| 1995 | 32.3°C | 25.8°C | 19.4°C | 36.6°C | 13.2°C | 73 mm | 66% | 2.9 m/s | 6.8 |
| 1994 | 36.1°C | 29.1°C | 22.2°C | 44.9°C | 18.5°C | 40 mm | 63% | 3.1 m/s | 6.9 |
| 1993 | 33.7°C | 27.6°C | 21.5°C | 41.4°C | 13.7°C | 109 mm | 69% | 3.4 m/s | 6.4 |
| 1992 | 30.5°C | 25.3°C | 20.1°C | 36.4°C | 14.4°C | 132 mm | 77% | 2.3 m/s | 6.5 |
| 1991 | 32.7°C | 27.2°C | 21.6°C | 36.9°C | 18.8°C | 107 mm | 72% | 2.6 m/s | 6.5 |
| 1990 | 36.1°C | 29.1°C | 22.2°C | 40.7°C | 18.9°C | 42 mm | 60% | 3.6 m/s | 7.5 |
| 1989 ❄️ | 29.4°C | 24.2°C | 19.0°C | 33.0°C | 12.3°C | 245 mm | 79% | 2.6 m/s | 6.5 |
| 1988 | 33.1°C | 26.5°C | 19.9°C | 39.1°C | 12.2°C | 53 mm | 61% | 2.3 m/s | 6.6 |
| 1987 | 30.1°C | 25.3°C | 20.4°C | 33.5°C | 13.5°C | 131 mm | 78% | 2.4 m/s | 6.5 |
| 1986 | 30.5°C | 25.9°C | 21.2°C | 37.1°C | 17.5°C | 133 mm | 78% | 2.2 m/s | 6.4 |
| 1985 | 33.3°C | 26.6°C | 19.9°C | 38.3°C | 14.1°C | 115 mm | 62% | 3.2 m/s | 6.8 |
| 1984 | 36.1°C | 29.1°C | 22.2°C | 41.4°C | 14.3°C | 58 mm | 52% | 3.7 m/s | 6.6 |
| 1983 | 31.9°C | 25.4°C | 18.8°C | 38.5°C | 10.0°C | 83 mm | 68% | 2.9 m/s | — |
| 1982 | 29.7°C | 24.6°C | 19.5°C | 33.1°C | 11.3°C | 151 mm | 78% | 2.4 m/s | — |
| 1981 | 31.6°C | 26.5°C | 21.4°C | 37.0°C | 14.4°C | 103 mm | 75% | 3.5 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 33.5°C with lows near 21.5°C (mean 27.5°C), based on 45 years of NASA POWER data.
June averages 96 mm of rainfall in Keller, a relatively wet time of year. The wettest on record was 262 mm in 2004.
The hottest June reached 44.9°C in 1994. The coldest dipped to 10°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.1°C. Daytime highs moved from 32.5°C to 34.3°C and overnight lows from 20.4°C to 22.8°C over the same span.
June is one of the warmer months of the year in Keller and a relatively wet time of year, so plan for around 33.5°C daytime highs and 21.5°C at night.
Not quite — June is the 10th coolest month in Keller, averaging 27.5°C.
For June in Keller, pack light, breathable clothing and sun protection, with typical highs of 33.5°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 67% — moderately humid.
Average wind speed in June is 2.9 m/s. The windiest June on record averaged 4.3 m/s (1998).
The wettest June on record was 2004 with 262 mm. On average, June sees 96 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 June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
