June is one of the warmer months of the year in Snohomish, with average highs near 17.9°C and lows around 9°C (mean 13.5°C). It is one of the drier months, averaging 84 mm of rainfall and 81% relative humidity across the period.
June is one of the warmer months of the year in Snohomish. Across 45 years of records, the warmest June in Snohomish was 2021 — when the month averaged 17°C — while the coldest were 1981 and 2012 at 11.4°C. Typical June days reach 17.9°C with nights near 9°C. The long-term June temperature trend is broadly flat.
June is one of the drier months in Snohomish, averaging 84 mm of rainfall. The wettest June on record was 1981 with 173 mm, while the driest was 2015 at 22 mm.
Relative humidity in Snohomish during June averages 81%. The most humid June was 2012 at 86%, and the least humid was 2015 at 75%.
June receives about 5.7 kWh/m²/day of solar energy in Snohomish. The sunniest June was 2015 at 7.2 kWh/m²/day, and the cloudiest was 2012 at 4.7.
Average wind speed in Snohomish during June is 0.2 m/s. The windiest Junes were 2023, 2024 and 2025, among others at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.5°C | 13.0°C | 13.5°C | 13.4°C | 13.8°C | +0.3°C |
| Avg High | 18.1°C | 17.3°C | 18.0°C | 17.8°C | 18.3°C | +0.2°C |
| Avg Low | 8.8°C | 8.8°C | 9.1°C | 9.1°C | 9.3°C | +0.5°C |
| Avg Rain | 85 mm | 91 mm | 73 mm | 77 mm | 99 mm | +14 mm |
June temperatures in Snohomish have risen by about 1.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.9°C (2008) to a record high of 39.4°C (2021).
Rainfall in June is one of the drier months, averaging 84 mm, with a wettest year of 173 mm.
One of the best times to visit Snohomish
June is one of the best times to visit Snohomish. Expect days averaging 17.9°C and nights around 9°C (mean 13.5°C) — warmer than Snohomish's yearly average — with higher rainfall (84 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 | 17.1°C | 12.5°C | 7.9°C | 26.2°C | 3.3°C | 48 mm | 83% | 0.2 m/s | 6.4 |
| 2024 | 17.2°C | 12.7°C | 8.3°C | 25.1°C | 4.6°C | 142 mm | 83% | 0.2 m/s | 6.1 |
| 2023 | 18.6°C | 14.1°C | 9.5°C | 26.3°C | 5.6°C | 58 mm | 81% | 0.2 m/s | 6.6 |
| 2022 | 18.1°C | 13.7°C | 9.4°C | 33.0°C | 5.4°C | 147 mm | 83% | 0.2 m/s | 5.1 |
| 2021 🔥 | 22.2°C | 17.0°C | 11.7°C | 39.4°C | 5.2°C | 71 mm | 77% | 0.2 m/s | 6.8 |
| 2020 | 16.8°C | 13.0°C | 9.2°C | 25.3°C | 6.2°C | 127 mm | 85% | 0.2 m/s | 5.6 |
| 2019 | 18.4°C | 13.8°C | 9.3°C | 30.7°C | 6.2°C | 49 mm | 80% | 0.2 m/s | 6.1 |
| 2018 | 17.6°C | 13.3°C | 9.0°C | 25.8°C | 4.7°C | 67 mm | 81% | 0.2 m/s | 5.5 |
| 2017 | 18.9°C | 14.0°C | 9.2°C | 31.8°C | 5.1°C | 63 mm | 80% | 0.2 m/s | 5.9 |
| 2016 | 18.9°C | 14.3°C | 9.6°C | 29.7°C | 4.8°C | 77 mm | 80% | 0.2 m/s | 6.1 |
| 2015 | 21.6°C | 16.5°C | 11.3°C | 27.8°C | 5.3°C | 22 mm | 75% | 0.2 m/s | 7.2 |
| 2014 | 17.5°C | 13.2°C | 9.0°C | 22.6°C | 5.6°C | 77 mm | 83% | 0.2 m/s | 5.7 |
| 2013 | 18.6°C | 14.0°C | 9.5°C | 30.6°C | 4.9°C | 72 mm | 82% | 0.2 m/s | 5.7 |
| 2012 | 15.2°C | 11.4°C | 7.7°C | 22.7°C | 4.1°C | 152 mm | 86% | 0.2 m/s | 4.7 |
| 2011 | 15.9°C | 12.0°C | 8.0°C | 22.5°C | 5.4°C | 81 mm | 84% | 0.2 m/s | 5.1 |
| 2010 | 15.7°C | 11.8°C | 7.9°C | 22.2°C | 4.3°C | 110 mm | 85% | 0.2 m/s | 5 |
| 2009 | 18.9°C | 14.3°C | 9.7°C | 28.8°C | 5.6°C | 31 mm | 79% | 0.2 m/s | 6 |
| 2008 | 16.1°C | 11.8°C | 7.5°C | 33.9°C | 2.9°C | 88 mm | 83% | 0.2 m/s | 5.3 |
| 2007 | 17.0°C | 12.8°C | 8.6°C | 27.7°C | 5.6°C | 89 mm | 82% | 0.2 m/s | 5.5 |
| 2006 | 18.9°C | 14.4°C | 9.9°C | 31.9°C | 6.4°C | 74 mm | 80% | 0.2 m/s | 6 |
| 2005 | 16.7°C | 12.8°C | 9.0°C | 26.8°C | 4.9°C | 94 mm | 84% | 0.2 m/s | 5.1 |
| 2004 | 20.2°C | 15.2°C | 10.3°C | 31.7°C | 5.4°C | 61 mm | 77% | 0.2 m/s | 6.5 |
| 2003 | 19.4°C | 14.6°C | 9.8°C | 28.4°C | 5.6°C | 31 mm | 78% | 0.2 m/s | 6.3 |
| 2002 | 18.8°C | 14.1°C | 9.4°C | 31.8°C | 4.0°C | 74 mm | 80% | 0.2 m/s | 6.1 |
| 2001 | 16.0°C | 11.8°C | 7.7°C | 25.5°C | 4.1°C | 100 mm | 82% | 0.2 m/s | 5.4 |
| 2000 | 18.0°C | 13.6°C | 9.2°C | 28.5°C | 5.3°C | 87 mm | 80% | 0.2 m/s | 5.7 |
| 1999 | 15.8°C | 12.0°C | 8.1°C | 28.2°C | 3.2°C | 100 mm | 85% | 0.2 m/s | 5.2 |
| 1998 | 17.8°C | 13.7°C | 9.7°C | 25.4°C | 6.8°C | 68 mm | 84% | 0.2 m/s | 5.6 |
| 1997 | 17.3°C | 13.2°C | 9.2°C | 22.5°C | 6.9°C | 115 mm | 83% | 0.2 m/s | 5.5 |
| 1996 | 17.1°C | 12.5°C | 7.9°C | 26.4°C | 4.9°C | 41 mm | 80% | 0.2 m/s | 5.7 |
| 1995 | 18.4°C | 13.6°C | 8.9°C | 28.4°C | 4.9°C | 72 mm | 79% | 0.2 m/s | 5.4 |
| 1994 | 17.2°C | 12.6°C | 7.9°C | 22.5°C | 4.0°C | 93 mm | 80% | 0.2 m/s | 5.2 |
| 1993 | 17.0°C | 12.9°C | 8.8°C | 23.2°C | 5.5°C | 128 mm | 83% | 0.2 m/s | 4.8 |
| 1992 | 19.9°C | 15.3°C | 10.7°C | 28.2°C | 6.6°C | 85 mm | 80% | 0.2 m/s | 5.6 |
| 1991 | 15.5°C | 11.5°C | 7.6°C | 21.6°C | 3.0°C | 81 mm | 84% | 0.2 m/s | 4.9 |
| 1990 | 17.4°C | 13.1°C | 8.8°C | 28.7°C | 5.5°C | 128 mm | 84% | 0.2 m/s | 4.8 |
| 1989 | 19.6°C | 14.7°C | 9.8°C | 28.3°C | 6.1°C | 54 mm | 79% | 0.2 m/s | 5.6 |
| 1988 | 17.7°C | 12.9°C | 8.2°C | 29.4°C | 3.8°C | 66 mm | 79% | 0.2 m/s | 5.2 |
| 1987 | 20.2°C | 14.8°C | 9.3°C | 29.5°C | 4.7°C | 25 mm | 77% | 0.2 m/s | 6.1 |
| 1986 | 19.4°C | 14.6°C | 9.7°C | 29.3°C | 6.5°C | 50 mm | 77% | 0.2 m/s | 5.4 |
| 1985 | 17.8°C | 12.8°C | 7.8°C | 28.9°C | 4.8°C | 90 mm | 78% | 0.2 m/s | 6 |
| 1984 | 16.3°C | 12.0°C | 7.7°C | 25.4°C | 3.7°C | 118 mm | 83% | 0.2 m/s | 5 |
| 1983 | 16.8°C | 12.8°C | 8.7°C | 23.1°C | 6.4°C | 130 mm | 83% | 0.2 m/s | — |
| 1982 | 20.0°C | 15.1°C | 10.2°C | 33.2°C | 4.7°C | 57 mm | 79% | 0.2 m/s | — |
| 1981 ❄️ 🌧️ | 15.4°C | 11.4°C | 7.4°C | 23.8°C | 4.7°C | 173 mm | 85% | 0.2 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 17.9°C with lows near 9°C (mean 13.5°C), based on 45 years of NASA POWER data.
June averages 84 mm of rainfall in Snohomish, one of the drier months. The wettest on record was 173 mm in 1981.
The hottest June reached 39.4°C in 2021. The coldest dipped to 2.9°C in 2008.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.2°C. Daytime highs moved from 17.3°C to 18.6°C and overnight lows from 8.4°C to 9.4°C over the same span.
June is one of the warmer months of the year in Snohomish and one of the drier months, so plan for around 17.9°C daytime highs and 9°C at night.
Not quite — June is the 9th coolest month in Snohomish, averaging 13.5°C.
For June in Snohomish, pack light layers you can adjust through the day, with typical highs of 17.9°C and lows of 9°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 81% — quite humid.
Average wind speed in June is 0.2 m/s. The windiest June on record averaged 0.2 m/s (1981).
The wettest June on record was 1981 with 173 mm. On average, June sees 84 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 Snohomish 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.
