June is one of the warmer months of the year in Buffalo, with average highs near 23.5°C and lows around 13.5°C (mean 18.5°C). It is a relatively wet time of year, averaging 86 mm of rainfall and 73% relative humidity across the period.
June is one of the warmer months of the year in Buffalo. Across 45 years of records, the warmest June in Buffalo was 2005 — when the month averaged 21.7°C — while the coldest was 1982 at 15.9°C. Typical June days reach 23.5°C with nights near 13.5°C. The long-term trend is warming, about 0.5°C per decade.
June is a relatively wet time of year in Buffalo, averaging 86 mm of rainfall. The wettest June on record was 1989 with 167 mm, while the driest was 1991 at 21 mm.
Relative humidity in Buffalo during June averages 73%. The most humid June was 1996 at 82%, and the least humid was 1988 at 58%.
June receives about 5.9 kWh/m²/day of solar energy in Buffalo. The sunniest June was 2020 at 7.2 kWh/m²/day, and the cloudiest was 2000 at 5.
Average wind speed in Buffalo during June is 1.2 m/s. The windiest Junes were 2016, 2017 and 2021, among others at 1.4 m/s, while the calmest were 1995, 1996 and 2009 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.5°C | 18.3°C | 18.5°C | 18.7°C | 19.9°C | +2.4°C |
| Avg High | 22.7°C | 23.5°C | 23.3°C | 23.5°C | 25.0°C | +2.3°C |
| Avg Low | 12.4°C | 13.1°C | 13.6°C | 13.9°C | 14.8°C | +2.4°C |
| Avg Rain | 100 mm | 74 mm | 82 mm | 101 mm | 69 mm | -31 mm |
June temperatures in Buffalo have risen by about 2.5°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 3.8°C (2003) to a record high of 33.7°C (2005).
Rainfall in June is a relatively wet time of year, averaging 86 mm, with a wettest year of 167 mm.
One of the best times to visit Buffalo
June is one of the best times to visit Buffalo. Expect days averaging 23.5°C and nights around 13.5°C (mean 18.5°C) — warmer than Buffalo's yearly average — with higher rainfall (86 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 | 24.9°C | 20.1°C | 15.3°C | 31.8°C | 6.0°C | 70 mm | 75% | 1.3 m/s | 5.7 |
| 2024 | 25.4°C | 20.6°C | 15.8°C | 31.9°C | 8.8°C | 89 mm | 72% | 1.3 m/s | 5.6 |
| 2023 | 23.4°C | 18.7°C | 13.9°C | 30.4°C | 9.7°C | 67 mm | 71% | 1.1 m/s | 5.5 |
| 2022 | 24.6°C | 19.1°C | 13.5°C | 31.8°C | 8.9°C | 67 mm | 67% | 1.3 m/s | 6.7 |
| 2021 | 26.3°C | 21.2°C | 16.1°C | 32.7°C | 9.8°C | 63 mm | 66% | 1.4 m/s | 6.2 |
| 2020 | 25.2°C | 19.7°C | 14.2°C | 31.3°C | 6.1°C | 56 mm | 69% | 1.3 m/s | 7.2 |
| 2019 | 22.0°C | 17.3°C | 12.5°C | 29.2°C | 5.8°C | 117 mm | 76% | 1.2 m/s | 6 |
| 2018 | 23.6°C | 18.8°C | 13.9°C | 30.0°C | 9.2°C | 75 mm | 73% | 1.2 m/s | 5.8 |
| 2017 | 22.9°C | 18.7°C | 14.4°C | 28.6°C | 8.1°C | 96 mm | 78% | 1.4 m/s | 6 |
| 2016 | 25.3°C | 19.7°C | 14.2°C | 31.9°C | 7.3°C | 38 mm | 62% | 1.4 m/s | 6.8 |
| 2015 | 22.9°C | 17.9°C | 12.9°C | 26.5°C | 6.3°C | 149 mm | 78% | 1.2 m/s | 5.3 |
| 2014 | 24.1°C | 19.1°C | 14.1°C | 29.4°C | 8.1°C | 92 mm | 77% | 1.1 m/s | 5.9 |
| 2013 | 22.5°C | 18.1°C | 13.8°C | 28.8°C | 7.8°C | 143 mm | 78% | 1.2 m/s | 5.5 |
| 2012 | 25.2°C | 20.1°C | 14.9°C | 31.5°C | 9.3°C | 77 mm | 68% | 1.4 m/s | 6.2 |
| 2011 | 22.6°C | 18.1°C | 13.7°C | 27.3°C | 5.8°C | 83 mm | 80% | 1.2 m/s | 5.8 |
| 2010 | 23.7°C | 19.2°C | 14.7°C | 28.5°C | 7.8°C | 141 mm | 75% | 1.3 m/s | 5.5 |
| 2009 | 22.1°C | 17.2°C | 12.4°C | 29.3°C | 4.8°C | 102 mm | 75% | 1 m/s | 5.3 |
| 2008 | 23.6°C | 19.4°C | 15.1°C | 28.9°C | 8.9°C | 98 mm | 79% | 1.4 m/s | 5.4 |
| 2007 | 25.3°C | 19.7°C | 14.1°C | 31.4°C | 6.3°C | 51 mm | 66% | 1.2 m/s | 6.7 |
| 2006 | 23.5°C | 19.0°C | 14.4°C | 30.3°C | 7.9°C | 85 mm | 72% | 1.2 m/s | 5.6 |
| 2005 🔥 | 26.6°C | 21.7°C | 16.7°C | 33.7°C | 10.7°C | 74 mm | 74% | 1.1 m/s | 5.8 |
| 2004 | 21.7°C | 17.1°C | 12.5°C | 26.5°C | 6.7°C | 67 mm | 77% | 1.3 m/s | 5.8 |
| 2003 | 21.5°C | 16.5°C | 11.6°C | 28.4°C | 3.8°C | 62 mm | 77% | 1.2 m/s | 5.3 |
| 2002 | 22.9°C | 18.0°C | 13.1°C | 29.0°C | 4.8°C | 75 mm | 79% | 1.1 m/s | 5.9 |
| 2001 | 24.0°C | 18.6°C | 13.2°C | 32.1°C | 6.0°C | 55 mm | 71% | 1.1 m/s | 5.8 |
| 2000 | 22.1°C | 17.7°C | 13.3°C | 27.6°C | 7.8°C | 155 mm | 80% | 1.4 m/s | 5 |
| 1999 | 25.9°C | 20.0°C | 14.2°C | 32.6°C | 7.8°C | 58 mm | 64% | 1.1 m/s | 6 |
| 1998 | 23.3°C | 18.5°C | 13.6°C | 30.5°C | 5.6°C | 97 mm | 74% | 1.2 m/s | 5.3 |
| 1997 | 23.9°C | 18.9°C | 13.9°C | 29.4°C | 9.7°C | 92 mm | 75% | 1.1 m/s | 6.1 |
| 1996 | 22.7°C | 18.1°C | 13.5°C | 28.7°C | 6.3°C | 119 mm | 82% | 1 m/s | 5.5 |
| 1995 | 25.1°C | 19.6°C | 14.1°C | 31.6°C | 7.5°C | 53 mm | 68% | 1 m/s | 5.9 |
| 1994 | 23.8°C | 18.4°C | 13.0°C | 33.0°C | 4.4°C | 94 mm | 72% | 1.2 m/s | 5.7 |
| 1993 | 22.2°C | 16.9°C | 11.6°C | 28.1°C | 5.6°C | 97 mm | 73% | 1.3 m/s | 6 |
| 1992 | 21.8°C | 16.3°C | 10.8°C | 27.9°C | 5.2°C | 44 mm | 69% | 1.1 m/s | 6.3 |
| 1991 | 24.7°C | 19.3°C | 13.8°C | 29.5°C | 6.9°C | 21 mm | 66% | 1.2 m/s | 6.5 |
| 1990 | 22.0°C | 17.2°C | 12.3°C | 27.7°C | 4.6°C | 65 mm | 76% | 1.4 m/s | 5.4 |
| 1989 🌧️ | 22.2°C | 17.7°C | 13.2°C | 28.2°C | 8.6°C | 167 mm | 81% | 1.1 m/s | 5.5 |
| 1988 | 23.2°C | 17.0°C | 10.8°C | 31.8°C | 4.4°C | 28 mm | 58% | 1.4 m/s | 6.5 |
| 1987 | 25.0°C | 19.8°C | 14.6°C | 30.7°C | 7.7°C | 118 mm | 68% | 1.4 m/s | 5.8 |
| 1986 | 21.6°C | 16.4°C | 11.2°C | 27.1°C | 4.5°C | 116 mm | 74% | 1.4 m/s | 6 |
| 1985 | 21.1°C | 16.0°C | 11.0°C | 26.7°C | 6.4°C | 76 mm | 70% | 1.4 m/s | 6.3 |
| 1984 | 22.6°C | 17.8°C | 13.0°C | 27.1°C | 6.5°C | 110 mm | 76% | 1.3 m/s | 5.8 |
| 1983 | 24.1°C | 18.6°C | 13.2°C | 30.5°C | 4.5°C | 59 mm | 70% | 1.1 m/s | — |
| 1982 ❄️ | 20.7°C | 15.9°C | 11.0°C | 27.2°C | 7.1°C | 111 mm | 77% | 1.2 m/s | — |
| 1981 | 23.7°C | 18.5°C | 13.4°C | 28.5°C | 6.3°C | 113 mm | 74% | 1.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 23.5°C with lows near 13.5°C (mean 18.5°C), based on 45 years of NASA POWER data.
June averages 86 mm of rainfall in Buffalo, a relatively wet time of year. The wettest on record was 167 mm in 1989.
The hottest June reached 33.7°C in 2005. The coldest dipped to 3.8°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.5°C. Daytime highs moved from 22.4°C to 24.9°C and overnight lows from 12.3°C to 14.9°C over the same span.
June is one of the warmer months of the year in Buffalo and a relatively wet time of year, so plan for around 23.5°C daytime highs and 13.5°C at night.
Not quite — June is the 10th coolest month in Buffalo, averaging 18.5°C.
For June in Buffalo, pack light layers you can adjust through the day, with typical highs of 23.5°C and lows of 13.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 73% — moderately humid.
Average wind speed in June is 1.2 m/s. The windiest June on record averaged 1.4 m/s (1981).
The wettest June on record was 1989 with 167 mm. On average, June sees 86 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 Buffalo 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.
