May is one of the warmer months of the year in Binghamton, with average highs near 18.7°C and lows around 7°C (mean 12.9°C). It is about average for rainfall, averaging 99 mm of rainfall and 80% relative humidity across the period.
May is one of the warmer months of the year in Binghamton. Across 45 years of records, the warmest May in Binghamton was 2012 — when the month averaged 15.9°C — while the coldest was 1997 at 9.7°C. Typical May days reach 18.7°C with nights near 7°C. The long-term trend is warming, about 0.4°C per decade.
May is about average for rainfall in Binghamton, averaging 99 mm of rainfall. The wettest May on record was 2025 with 197 mm, while the driest was 2023 at 23 mm.
Relative humidity in Binghamton during May averages 80%. The most humid May was 2011 at 86%, and the least humid was 2023 at 74%.
May receives about 5.3 kWh/m²/day of solar energy in Binghamton. The sunniest May was 2023 at 6.6 kWh/m²/day, and the cloudiest was 2025 at 4.
Average wind speed in Binghamton during May is 0.1 m/s. The windiest Mays were 2021, 2022 and 2023, among others at 0.1 m/s, while the calmest were 2020, 2024 and 2025, among others at 0 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.4°C | 12.2°C | 12.6°C | 14.1°C | 13.0°C | +0.6°C |
| Avg High | 18.4°C | 18.2°C | 18.5°C | 19.8°C | 18.8°C | +0.4°C |
| Avg Low | 6.4°C | 6.2°C | 6.7°C | 8.4°C | 7.2°C | +0.8°C |
| Avg Rain | 111 mm | 87 mm | 95 mm | 108 mm | 96 mm | -15 mm |
May temperatures in Binghamton have risen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -4°C (1996) to a record high of 33°C (2006).
Rainfall in May is about average for rainfall, averaging 99 mm, with a wettest year of 197 mm.
A good time to visit Binghamton
May is a good time to visit Binghamton, with days averaging 18.7°C and nights around 7°C (mean 12.9°C, warmer than Binghamton's yearly average) and higher rainfall. July and August are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 17.7°C | 12.7°C | 7.8°C | 25.2°C | 1.6°C | 197 mm | 85% | 0 m/s | 4 |
| 2024 | 20.4°C | 15.2°C | 9.9°C | 28.0°C | 3.6°C | 95 mm | 81% | 0 m/s | 5.4 |
| 2023 | 18.9°C | 12.1°C | 5.3°C | 27.5°C | -1.8°C | 23 mm | 74% | 0.1 m/s | 6.6 |
| 2022 | 20.7°C | 14.4°C | 8.1°C | 27.9°C | -2.4°C | 69 mm | 80% | 0.1 m/s | 5.6 |
| 2021 | 18.2°C | 12.3°C | 6.4°C | 27.8°C | -0.8°C | 113 mm | 79% | 0.1 m/s | 5.4 |
| 2020 | 17.0°C | 11.4°C | 5.9°C | 28.6°C | -3.5°C | 79 mm | 79% | 0 m/s | 5.8 |
| 2019 | 18.8°C | 13.3°C | 7.8°C | 26.2°C | 2.5°C | 150 mm | 83% | 0 m/s | 4.5 |
| 2018 | 21.2°C | 15.5°C | 9.8°C | 28.6°C | -0.9°C | 107 mm | 82% | 0 m/s | 5.4 |
| 2017 | 17.3°C | 12.1°C | 6.9°C | 27.4°C | -2.1°C | 140 mm | 81% | 0 m/s | 4.5 |
| 2016 | 18.3°C | 12.6°C | 7.0°C | 28.8°C | -0.5°C | 76 mm | 79% | 0.1 m/s | 5.3 |
| 2015 | 22.0°C | 15.6°C | 9.2°C | 27.5°C | -1.8°C | 67 mm | 76% | 0.1 m/s | 6 |
| 2014 | 19.4°C | 13.4°C | 7.5°C | 25.3°C | -0.1°C | 103 mm | 81% | 0 m/s | 5.5 |
| 2013 | 19.3°C | 13.4°C | 7.4°C | 28.2°C | -3.1°C | 92 mm | 79% | 0 m/s | 5.6 |
| 2012 🔥 | 21.6°C | 15.9°C | 10.2°C | 27.8°C | 1.7°C | 125 mm | 81% | 0.1 m/s | 5.3 |
| 2011 | 19.8°C | 14.8°C | 9.7°C | 28.0°C | 0.7°C | 150 mm | 86% | 0 m/s | 4.9 |
| 2010 | 20.4°C | 14.2°C | 8.0°C | 28.8°C | -2.3°C | 69 mm | 77% | 0.1 m/s | 5.8 |
| 2009 | 18.9°C | 12.9°C | 7.0°C | 25.7°C | 1.0°C | 129 mm | 78% | 0 m/s | 5.2 |
| 2008 | 16.5°C | 10.5°C | 4.6°C | 23.4°C | -3.5°C | 74 mm | 79% | 0.1 m/s | 5.3 |
| 2007 | 20.2°C | 13.4°C | 6.5°C | 27.9°C | -0.3°C | 47 mm | 75% | 0.1 m/s | 6.5 |
| 2006 | 19.0°C | 13.1°C | 7.2°C | 33.0°C | -1.6°C | 80 mm | 78% | 0.1 m/s | 5.1 |
| 2005 | 16.6°C | 10.7°C | 4.8°C | 24.6°C | -2.3°C | 31 mm | 77% | 0.1 m/s | 5.6 |
| 2004 | 20.8°C | 15.2°C | 9.6°C | 27.2°C | 0.4°C | 142 mm | 82% | 0.1 m/s | 5.3 |
| 2003 | 17.0°C | 12.0°C | 7.1°C | 22.7°C | 0.5°C | 110 mm | 83% | 0.1 m/s | 4.6 |
| 2002 | 17.1°C | 11.1°C | 5.0°C | 24.9°C | -2.4°C | 135 mm | 78% | 0 m/s | 5.2 |
| 2001 | 19.5°C | 13.4°C | 7.3°C | 27.0°C | 0.2°C | 52 mm | 75% | 0.1 m/s | 5.8 |
| 2000 | 19.1°C | 13.5°C | 7.9°C | 26.9°C | 0.3°C | 147 mm | 82% | 0 m/s | 4.7 |
| 1999 | 20.3°C | 13.6°C | 6.9°C | 28.7°C | 1.5°C | 55 mm | 74% | 0.1 m/s | 6.1 |
| 1998 | 20.7°C | 15.2°C | 9.6°C | 27.5°C | 1.5°C | 128 mm | 81% | 0.1 m/s | 5.8 |
| 1997 ❄️ | 15.4°C | 9.7°C | 3.9°C | 23.8°C | -3.0°C | 87 mm | 76% | 0 m/s | 4.9 |
| 1996 | 16.6°C | 10.7°C | 4.7°C | 27.3°C | -4.0°C | 96 mm | 81% | 0.1 m/s | 5.1 |
| 1995 | 17.1°C | 11.1°C | 5.2°C | 24.2°C | -3.4°C | 56 mm | 79% | 0.1 m/s | 5.1 |
| 1994 | 17.0°C | 10.7°C | 4.5°C | 25.6°C | -1.5°C | 69 mm | 78% | 0.1 m/s | 5.4 |
| 1993 | 18.7°C | 12.5°C | 6.2°C | 27.3°C | 1.0°C | 47 mm | 78% | 0.1 m/s | 5.2 |
| 1992 | 18.0°C | 11.7°C | 5.3°C | 26.4°C | -2.1°C | 119 mm | 78% | 0.1 m/s | 5.3 |
| 1991 | 21.7°C | 15.8°C | 9.9°C | 27.2°C | 0.9°C | 67 mm | 80% | 0.1 m/s | 5.5 |
| 1990 | 16.6°C | 11.1°C | 5.6°C | 22.7°C | -1.9°C | 147 mm | 80% | 0 m/s | 4.7 |
| 1989 | 17.2°C | 12.0°C | 6.7°C | 26.2°C | -0.3°C | 197 mm | 84% | 0 m/s | 4.1 |
| 1988 | 19.3°C | 13.0°C | 6.8°C | 27.0°C | 0.8°C | 106 mm | 81% | 0.1 m/s | 5.5 |
| 1987 | 19.2°C | 12.9°C | 6.6°C | 27.5°C | -1.7°C | 60 mm | 80% | 0 m/s | 5.6 |
| 1986 | 19.7°C | 13.8°C | 8.0°C | 26.1°C | -2.9°C | 91 mm | 80% | 0 m/s | 5.5 |
| 1985 | 19.4°C | 13.3°C | 7.1°C | 25.5°C | -3.3°C | 94 mm | 78% | 0 m/s | 5.5 |
| 1984 | 15.9°C | 10.5°C | 5.1°C | 24.2°C | -0.8°C | 181 mm | 82% | 0 m/s | 4.1 |
| 1983 | 16.4°C | 10.7°C | 5.1°C | 22.5°C | -2.4°C | 102 mm | 81% | 0.1 m/s | — |
| 1982 | 19.7°C | 13.4°C | 7.2°C | 24.9°C | 0.1°C | 85 mm | 81% | 0.1 m/s | — |
| 1981 | 18.9°C | 12.0°C | 5.2°C | 25.1°C | -2.2°C | 79 mm | 76% | 0.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 18.7°C with lows near 7°C (mean 12.9°C), based on 45 years of NASA POWER data.
May averages 99 mm of rainfall in Binghamton, about average for rainfall. The wettest on record was 197 mm in 2025.
The hottest May reached 33°C in 2006. The coldest dipped to -4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.3°C. Daytime highs moved from 18.1°C to 19.2°C and overnight lows from 5.9°C to 7.5°C over the same span.
May is one of the warmer months of the year in Binghamton and about average for rainfall, so plan for around 18.7°C daytime highs and 7°C at night.
Not quite — May is the 8th coolest month in Binghamton, averaging 12.9°C.
For May in Binghamton, pack warm layers and a jacket for chilly mornings, with typical highs of 18.7°C and lows of 7°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 80% — quite humid.
Average wind speed in May is 0.1 m/s. The windiest May on record averaged 0.1 m/s (1981).
The wettest May on record was 2025 with 197 mm. On average, May sees 99 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 Binghamton behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
