June is one of the warmer months of the year in Kennewick, with average highs near 27°C and lows around 12.9°C (mean 20°C). It is about average for rainfall, averaging 20 mm of rainfall and 49% relative humidity across the period.
June is one of the warmer months of the year in Kennewick. Across 45 years of records, the warmest Junes in Kennewick were 2015 and 2021 — when the month averaged 24.6°C — while the coldest was 1991 at 17°C. Typical June days reach 27°C with nights near 12.9°C. The long-term trend is warming, about 0.4°C per decade.
June is about average for rainfall in Kennewick, averaging 20 mm of rainfall. The wettest June on record was 2022 with 53 mm, while the driest was 2003 at 0 mm.
Relative humidity in Kennewick during June averages 49%. The most humid June was 1984 at 57%, and the least humid was 2015 at 39%.
June receives about 7.2 kWh/m²/day of solar energy in Kennewick. The sunniest June was 2003 at 7.9 kWh/m²/day, and the cloudiest were 1991 and 1995 at 6.5.
Average wind speed in Kennewick during June is 2.8 m/s. The windiest June was 1999 at 3.4 m/s, while the calmest were 1987, 2006 and 2013 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.8°C | 19.2°C | 20.1°C | 20.1°C | 21.0°C | +1.2°C |
| Avg High | 26.9°C | 26.1°C | 27.4°C | 27.1°C | 28.0°C | +1.1°C |
| Avg Low | 12.6°C | 12.2°C | 12.9°C | 13.1°C | 13.9°C | +1.3°C |
| Avg Rain | 18 mm | 21 mm | 20 mm | 21 mm | 19 mm | +1 mm |
June temperatures in Kennewick have risen by about 2.4°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 4.8°C (1984) to a record high of 46.1°C (2021).
Rainfall in June is about average for rainfall, averaging 20 mm, with a wettest year of 53 mm.
One of the best times to visit Kennewick
June is one of the best times to visit Kennewick. Expect days averaging 27°C and nights around 12.9°C (mean 20°C) — warmer than Kennewick's yearly average — with low rainfall (20 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 | 27.9°C | 20.5°C | 13.1°C | 37.2°C | 8.3°C | 3 mm | 47% | 2.8 m/s | 7.8 |
| 2024 | 27.3°C | 20.1°C | 12.9°C | 35.2°C | 7.1°C | 21 mm | 47% | 2.8 m/s | 7.4 |
| 2023 | 28.4°C | 21.2°C | 14.1°C | 35.7°C | 8.3°C | 11 mm | 46% | 2.5 m/s | 7.4 |
| 2022 🌧️ | 26.0°C | 19.4°C | 12.8°C | 37.7°C | 8.3°C | 53 mm | 56% | 2.6 m/s | 6.8 |
| 2021 | 32.0°C | 24.6°C | 17.1°C | 46.1°C | 8.4°C | 6 mm | 40% | 2.8 m/s | 7.8 |
| 2020 | 26.6°C | 19.9°C | 13.2°C | 37.2°C | 8.1°C | 21 mm | 50% | 3 m/s | 6.9 |
| 2019 | 28.3°C | 20.9°C | 13.5°C | 35.7°C | 8.6°C | 5 mm | 45% | 2.9 m/s | 7.6 |
| 2018 | 27.1°C | 20.1°C | 13.0°C | 33.5°C | 8.1°C | 11 mm | 47% | 2.8 m/s | 7.4 |
| 2017 | 27.9°C | 20.7°C | 13.6°C | 39.1°C | 8.7°C | 14 mm | 48% | 2.8 m/s | 7.4 |
| 2016 | 28.2°C | 21.0°C | 13.7°C | 39.2°C | 7.2°C | 15 mm | 46% | 2.9 m/s | 7.5 |
| 2015 🔥 | 32.4°C | 24.6°C | 16.8°C | 41.5°C | 10.6°C | 6 mm | 39% | 2.5 m/s | 7.8 |
| 2014 | 26.7°C | 19.7°C | 12.8°C | 32.3°C | 8.1°C | 17 mm | 48% | 2.8 m/s | 7.3 |
| 2013 | 26.9°C | 20.2°C | 13.5°C | 37.2°C | 9.5°C | 31 mm | 50% | 2.4 m/s | 6.8 |
| 2012 | 24.4°C | 17.9°C | 11.5°C | 32.7°C | 6.1°C | 49 mm | 55% | 3 m/s | 6.6 |
| 2011 | 24.6°C | 17.8°C | 11.0°C | 31.8°C | 6.2°C | 21 mm | 54% | 3 m/s | 7.2 |
| 2010 | 24.9°C | 18.2°C | 11.4°C | 33.0°C | 6.9°C | 41 mm | 55% | 2.8 m/s | 6.9 |
| 2009 | 28.1°C | 21.0°C | 13.9°C | 34.9°C | 9.8°C | 14 mm | 47% | 2.7 m/s | 7.2 |
| 2008 | 26.5°C | 18.9°C | 11.2°C | 39.9°C | 6.7°C | 20 mm | 49% | 3.1 m/s | 7.3 |
| 2007 | 26.2°C | 19.3°C | 12.4°C | 37.5°C | 8.5°C | 28 mm | 49% | 3 m/s | 7.1 |
| 2006 | 27.6°C | 20.6°C | 13.7°C | 39.9°C | 10.3°C | 34 mm | 52% | 2.4 m/s | 7 |
| 2005 | 26.3°C | 19.2°C | 12.2°C | 34.5°C | 7.9°C | 12 mm | 48% | 3 m/s | 7.2 |
| 2004 | 28.0°C | 20.8°C | 13.5°C | 37.1°C | 8.0°C | 31 mm | 48% | 2.7 m/s | 7.5 |
| 2003 | 29.4°C | 21.7°C | 14.0°C | 37.4°C | 8.3°C | 0 mm | 42% | 2.8 m/s | 7.9 |
| 2002 | 28.1°C | 20.8°C | 13.6°C | 39.8°C | 6.2°C | 25 mm | 47% | 3 m/s | 7.1 |
| 2001 | 25.3°C | 18.4°C | 11.6°C | 35.9°C | 6.3°C | 21 mm | 47% | 2.7 m/s | 6.8 |
| 2000 | 28.1°C | 20.7°C | 13.3°C | 36.8°C | 7.2°C | 13 mm | 46% | 2.9 m/s | 7.3 |
| 1999 | 25.5°C | 18.6°C | 11.8°C | 35.1°C | 6.3°C | 8 mm | 50% | 3.4 m/s | 7.1 |
| 1998 | 26.6°C | 19.6°C | 12.6°C | 35.1°C | 9.1°C | 14 mm | 51% | 3 m/s | 7.5 |
| 1997 | 25.5°C | 18.9°C | 12.3°C | 32.2°C | 9.2°C | 17 mm | 54% | 2.9 m/s | 7.3 |
| 1996 | 26.1°C | 18.8°C | 11.6°C | 31.7°C | 7.9°C | 18 mm | 51% | 2.6 m/s | 7.5 |
| 1995 | 25.2°C | 18.6°C | 12.0°C | 34.6°C | 6.6°C | 37 mm | 55% | 2.8 m/s | 6.5 |
| 1994 | 26.3°C | 18.9°C | 11.6°C | 34.8°C | 7.1°C | 19 mm | 49% | 3 m/s | 7.2 |
| 1993 | 25.2°C | 18.6°C | 12.0°C | 33.7°C | 8.2°C | 20 mm | 52% | 3.1 m/s | 6.6 |
| 1992 | 30.0°C | 22.7°C | 15.3°C | 41.1°C | 10.3°C | 30 mm | 46% | 2.6 m/s | 7 |
| 1991 ❄️ | 23.6°C | 17.0°C | 10.4°C | 32.4°C | 5.4°C | 31 mm | 53% | 2.9 m/s | 6.5 |
| 1990 | 26.8°C | 19.8°C | 12.8°C | 34.4°C | 8.2°C | 12 mm | 50% | 3.2 m/s | 6.9 |
| 1989 | 28.1°C | 21.0°C | 13.8°C | 34.6°C | 9.1°C | 7 mm | 46% | 2.9 m/s | 7.2 |
| 1988 | 26.0°C | 19.2°C | 12.5°C | 33.9°C | 7.2°C | 19 mm | 51% | 2.7 m/s | 6.6 |
| 1987 | 29.6°C | 21.6°C | 13.6°C | 38.5°C | 6.6°C | 11 mm | 44% | 2.4 m/s | 7.2 |
| 1986 | 29.9°C | 22.3°C | 14.6°C | 36.9°C | 8.5°C | 2 mm | 45% | 2.8 m/s | 7.3 |
| 1985 | 27.6°C | 19.9°C | 12.2°C | 37.9°C | 7.1°C | 17 mm | 46% | 2.9 m/s | 7.4 |
| 1984 | 24.1°C | 17.3°C | 10.5°C | 32.5°C | 4.8°C | 30 mm | 57% | 2.7 m/s | 6.6 |
| 1983 | 24.9°C | 18.2°C | 11.5°C | 33.8°C | 8.0°C | 25 mm | 53% | 3 m/s | — |
| 1982 | 27.9°C | 20.9°C | 14.0°C | 36.1°C | 6.5°C | 22 mm | 51% | 2.6 m/s | — |
| 1981 | 24.2°C | 17.5°C | 10.7°C | 33.1°C | 6.7°C | 31 mm | 54% | 3.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 27°C with lows near 12.9°C (mean 20°C), based on 45 years of NASA POWER data.
June averages 20 mm of rainfall in Kennewick, about average for rainfall. The wettest on record was 53 mm in 2022.
The hottest June reached 46.1°C in 2021. The coldest dipped to 4.8°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.4°C. Daytime highs moved from 25.7°C to 28.3°C and overnight lows from 11.8°C to 14°C over the same span.
June is one of the warmer months of the year in Kennewick and about average for rainfall, so plan for around 27°C daytime highs and 12.9°C at night.
Not quite — June is the 10th coolest month in Kennewick, averaging 20°C.
For June in Kennewick, pack light layers you can adjust through the day, with typical highs of 27°C and lows of 12.9°C.
Relative humidity in June averages 49% — relatively dry.
Average wind speed in June is 2.8 m/s. The windiest June on record averaged 3.4 m/s (1999).
The wettest June on record was 2022 with 53 mm. On average, June sees 20 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 Kennewick 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.
