May is one of the warmer months of the year in Longview, with average highs near 16.4°C and lows around 6.4°C (mean 11.4°C). It is one of the drier months, averaging 85 mm of rainfall and 84% relative humidity across the period.
May is one of the warmer months of the year in Longview. Across 45 years of records, the warmest May in Longview was 2023 — when the month averaged 13.9°C — while the coldest was 2011 at 9°C. Typical May days reach 16.4°C with nights near 6.4°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Longview, averaging 85 mm of rainfall. The wettest May on record was 2022 with 177 mm, while the driest was 1992 at 13 mm.
Relative humidity in Longview during May averages 84%. The most humid May was 1998 at 89%, and the least humid was 1992 at 79%.
May receives about 5.2 kWh/m²/day of solar energy in Longview. The sunniest May was 1992 at 6.2 kWh/m²/day, and the cloudiest was 1991 at 4.1.
Average wind speed in Longview during May is 0.1 m/s. The windiest May was 1985 at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.9°C | 11.3°C | 11.3°C | 11.8°C | 11.6°C | +0.7°C |
| Avg High | 16.0°C | 16.2°C | 16.3°C | 16.9°C | 16.6°C | +0.6°C |
| Avg Low | 5.9°C | 6.4°C | 6.3°C | 6.8°C | 6.7°C | +0.8°C |
| Avg Rain | 85 mm | 91 mm | 78 mm | 80 mm | 92 mm | +7 mm |
May temperatures in Longview have risen by about 0.9°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -0.4°C (1985) to a record high of 33.1°C (1983).
Rainfall in May is one of the drier months, averaging 85 mm, with a wettest year of 177 mm.
A good time to visit Longview
May is a good time to visit Longview, with days averaging 16.4°C and nights around 6.4°C (mean 11.4°C, warmer than Longview's yearly average) and higher rainfall. August and July 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 | 16.8°C | 11.6°C | 6.4°C | 24.1°C | 1.2°C | 55 mm | 83% | 0.1 m/s | 5.7 |
| 2024 | 15.9°C | 11.0°C | 6.2°C | 31.3°C | 3.0°C | 105 mm | 84% | 0.1 m/s | 5.4 |
| 2023 🔥 | 19.5°C | 13.9°C | 8.2°C | 29.9°C | 3.5°C | 34 mm | 82% | 0.1 m/s | 5.9 |
| 2022 🌧️ | 14.0°C | 9.7°C | 5.5°C | 21.3°C | 1.1°C | 177 mm | 87% | 0.1 m/s | 4.7 |
| 2021 | 16.7°C | 11.6°C | 6.5°C | 23.5°C | 3.6°C | 59 mm | 84% | 0.1 m/s | 5.5 |
| 2020 | 16.9°C | 12.1°C | 7.3°C | 30.8°C | 3.1°C | 123 mm | 85% | 0.1 m/s | 5.1 |
| 2019 | 18.4°C | 13.0°C | 7.7°C | 27.7°C | 3.6°C | 53 mm | 84% | 0.1 m/s | 5.5 |
| 2018 | 18.8°C | 13.4°C | 8.0°C | 27.0°C | 5.5°C | 13 mm | 83% | 0.1 m/s | 5.6 |
| 2017 | 17.6°C | 12.3°C | 7.0°C | 28.3°C | 3.0°C | 90 mm | 84% | 0.1 m/s | 5.5 |
| 2016 | 17.9°C | 12.7°C | 7.5°C | 25.6°C | 5.0°C | 40 mm | 83% | 0.1 m/s | 5.4 |
| 2015 | 18.0°C | 12.9°C | 7.7°C | 24.8°C | 5.3°C | 38 mm | 84% | 0.1 m/s | 5.1 |
| 2014 | 17.7°C | 12.7°C | 7.6°C | 29.7°C | 3.8°C | 102 mm | 84% | 0.1 m/s | 5.3 |
| 2013 | 17.0°C | 12.1°C | 7.2°C | 24.2°C | -0.3°C | 131 mm | 86% | 0.1 m/s | 5 |
| 2012 | 15.9°C | 10.6°C | 5.3°C | 27.4°C | 0.0°C | 98 mm | 83% | 0.1 m/s | 5.4 |
| 2011 ❄️ | 13.5°C | 9.0°C | 4.6°C | 17.6°C | 1.7°C | 104 mm | 85% | 0.1 m/s | 4.7 |
| 2010 | 13.9°C | 9.7°C | 5.4°C | 20.5°C | 1.5°C | 128 mm | 86% | 0.1 m/s | 4.7 |
| 2009 | 16.8°C | 11.3°C | 5.8°C | 24.6°C | 2.0°C | 126 mm | 83% | 0.1 m/s | 5.9 |
| 2008 | 15.7°C | 11.1°C | 6.5°C | 28.0°C | 1.7°C | 41 mm | 85% | 0.1 m/s | 4.5 |
| 2007 | 16.9°C | 11.3°C | 5.8°C | 26.0°C | 2.6°C | 38 mm | 83% | 0.1 m/s | 5.8 |
| 2006 | 17.5°C | 11.9°C | 6.4°C | 26.7°C | 1.0°C | 81 mm | 82% | 0.1 m/s | 5.6 |
| 2005 | 17.2°C | 12.7°C | 8.2°C | 30.4°C | 5.1°C | 142 mm | 86% | 0.1 m/s | 4.8 |
| 2004 | 16.4°C | 11.9°C | 7.4°C | 20.6°C | 4.9°C | 82 mm | 86% | 0.1 m/s | 4.5 |
| 2003 | 15.3°C | 10.6°C | 5.9°C | 25.9°C | 1.0°C | 48 mm | 85% | 0.1 m/s | 5.2 |
| 2002 | 15.0°C | 10.2°C | 5.4°C | 23.2°C | 0.3°C | 55 mm | 83% | 0.1 m/s | 5.1 |
| 2001 | 17.3°C | 11.7°C | 6.0°C | 29.1°C | 2.2°C | 67 mm | 82% | 0.1 m/s | 6 |
| 2000 | 14.7°C | 10.4°C | 6.0°C | 21.8°C | 2.7°C | 103 mm | 86% | 0.1 m/s | 5 |
| 1999 | 13.8°C | 9.2°C | 4.5°C | 27.9°C | -0.1°C | 106 mm | 85% | 0.1 m/s | 5.4 |
| 1998 | 14.2°C | 10.4°C | 6.6°C | 22.5°C | 2.3°C | 127 mm | 89% | 0.1 m/s | 4.6 |
| 1997 | 18.7°C | 13.4°C | 8.1°C | 29.2°C | 2.9°C | 96 mm | 84% | 0.1 m/s | 5.4 |
| 1996 | 13.8°C | 9.5°C | 5.2°C | 20.7°C | 1.5°C | 129 mm | 85% | 0.1 m/s | 4.5 |
| 1995 | 17.6°C | 12.3°C | 7.0°C | 23.8°C | 3.3°C | 52 mm | 83% | 0.1 m/s | 5.6 |
| 1994 | 17.1°C | 11.8°C | 6.5°C | 24.3°C | 2.8°C | 58 mm | 84% | 0.1 m/s | 4.9 |
| 1993 | 17.9°C | 13.0°C | 8.0°C | 27.3°C | 2.1°C | 142 mm | 85% | 0.1 m/s | 4.7 |
| 1992 | 19.9°C | 13.3°C | 6.7°C | 29.8°C | 1.6°C | 13 mm | 79% | 0.1 m/s | 6.2 |
| 1991 | 14.1°C | 9.8°C | 5.4°C | 19.6°C | 2.2°C | 95 mm | 86% | 0.1 m/s | 4.1 |
| 1990 | 15.3°C | 10.5°C | 5.8°C | 24.9°C | 2.5°C | 91 mm | 86% | 0.1 m/s | 4.8 |
| 1989 | 16.2°C | 11.1°C | 6.0°C | 23.3°C | 3.0°C | 73 mm | 83% | 0.1 m/s | 4.8 |
| 1988 | 15.1°C | 10.4°C | 5.7°C | 25.4°C | 1.7°C | 133 mm | 86% | 0.1 m/s | 4.5 |
| 1987 | 17.5°C | 12.2°C | 6.9°C | 31.2°C | 3.9°C | 92 mm | 82% | 0.1 m/s | 5.6 |
| 1986 | 15.7°C | 10.9°C | 6.0°C | 28.6°C | 0.5°C | 90 mm | 85% | 0.1 m/s | 4.5 |
| 1985 | 15.9°C | 10.7°C | 5.5°C | 25.2°C | -0.4°C | 51 mm | 83% | 0.2 m/s | 5.1 |
| 1984 | 14.1°C | 9.5°C | 4.9°C | 25.8°C | 2.1°C | 145 mm | 85% | 0.1 m/s | 5.2 |
| 1983 | 18.0°C | 12.5°C | 7.1°C | 33.1°C | 3.6°C | 76 mm | 83% | 0.1 m/s | — |
| 1982 | 16.1°C | 10.6°C | 5.1°C | 24.4°C | 0.9°C | 22 mm | 81% | 0.1 m/s | — |
| 1981 | 15.1°C | 10.4°C | 5.7°C | 23.3°C | 1.9°C | 82 mm | 85% | 0.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 16.4°C with lows near 6.4°C (mean 11.4°C), based on 45 years of NASA POWER data.
May averages 85 mm of rainfall in Longview, one of the drier months. The wettest on record was 177 mm in 2022.
The hottest May reached 33.1°C in 1983. The coldest dipped to -0.4°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.9°C. Daytime highs moved from 15.8°C to 16.6°C and overnight lows from 5.7°C to 6.6°C over the same span.
May is one of the warmer months of the year in Longview and one of the drier months, so plan for around 16.4°C daytime highs and 6.4°C at night.
Not quite — May is the 8th coolest month in Longview, averaging 11.4°C.
For May in Longview, pack warm layers and a jacket for chilly mornings, with typical highs of 16.4°C and lows of 6.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 84% — quite humid.
Average wind speed in May is 0.1 m/s. The windiest May on record averaged 0.2 m/s (1985).
The wettest May on record was 2022 with 177 mm. On average, May sees 85 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 Longview 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.
