On This Day, 18 May: Notable Weather Records
20 notable weather records on 18 May across the years, led by Ganca, AZ, with events and storms for the date.
Key Facts for 18 May
- 20 notable weather records were set or tied on 18 May in 16 years (1955 to 2024).
- Ganca set a daily record precipitation of 99.3 mm (3.9 in) on 18 May 2024.
- 4 extreme weather events peaked on 18 May.
- 2 named storms were active on 18 May.
Records on 18 May Through the Years
1955 to 2024| Date | Kind | Detail |
|---|---|---|
| 1955-05-18 | Record daily precipitation | Taos, 73.7 mm (2.9 in) |
| 1995-05-18 | Record daily precipitation | Berry Masonic Village, 152.8 mm (6.0 in) |
| 1998-05-18 | Record daily precipitation | Kherson, 100.1 mm (3.9 in) |
| 2000-05-18 | Record daily precipitation | Oconomowoc Wwtp, 68.3 mm (2.7 in) |
| 2000-05-18 | Record daily snowfall | Wamsutter, 30.5 cm (12.0 in) |
| 2000-05-18 | Record daily precipitation | Baraboo Wwtp, 69.9 mm (2.8 in) |
| 2000-05-18 | Record daily precipitation | Marion, 69.9 mm (2.8 in) |
| 2002-05-18 | Record daily precipitation | Munchen-Nymphenburg, 81.8 mm (3.2 in) |
| 2004-05-18 | Record daily precipitation | Coshocton Wpc Plt, 67.1 mm (2.6 in) |
| 2006-05-18 | Record daily precipitation | Springbok, 39.1 mm (1.5 in) |
| 2007-05-18 | Record daily precipitation | Oberon (Springbank), 48.0 mm (1.9 in) |
| 2010-05-18 | Record daily precipitation | Angermunde, 42.0 mm (1.7 in) |
| 2013-05-18 | Record daily precipitation | Kizljar, 34.0 mm (1.3 in) |
| 2015-05-18 | Record daily precipitation | Jamestown State Hosp, 63.5 mm (2.5 in) |
| 2016-05-18 | Record daily precipitation | Vero Beach 4SE, 295.9 mm (11.6 in) |
| 2016-05-18 | Record daily precipitation | Inverness 3 SE, 90.2 mm (3.6 in) |
| 2017-05-18 | Record daily snowfall | Hayden, 15.2 cm (6.0 in) |
| 2018-05-18 | Record daily precipitation | Northport, 46.2 mm (1.8 in) |
| 2020-05-18 | Record daily precipitation | Sturgeon Bay Exp Farm, 77.5 mm (3.1 in) |
| 2024-05-18 | Record daily precipitation | Ganca, 99.3 mm (3.9 in) |
Notable Records
| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 18 May 2024 | Ganca, AZ | daily rain | 99.3 mm (3.9 in) | 77.3 mm (3.0 in) | 135 years | 80 of 100 (Exceptional) |
| 18 May 2015 | Jamestown State Hosp, US | daily rain | 63.5 mm (2.5 in) | 44.7 mm (1.8 in) | 112 years | 80 of 100 (Exceptional) |
| 18 May 2002 | Munchen-Nymphenburg, DE | daily rain | 81.8 mm (3.2 in) | 48.3 mm (1.9 in) | 112 years | 80 of 100 (Exceptional) |
| 18 May 2007 | Oberon (Springbank), AU | daily rain | 48.0 mm (1.9 in) | 36.6 mm (1.4 in) | 111 years | 80 of 100 (Exceptional) |
| 18 May 2017 | Hayden, US | daily snowfall | 15.2 cm (6.0 in) | 15.2 cm (6.0 in) | 108 years | 80 of 100 (Exceptional) |
| 18 May 1998 | Kherson, UA | daily rain | 100.1 mm (3.9 in) | 62.1 mm (2.4 in) | 107 years | 80 of 100 (Exceptional) |
| 18 May 2000 | Oconomowoc Wwtp, US | daily rain | 68.3 mm (2.7 in) | 41.4 mm (1.6 in) | 105 years | 80 of 100 (Exceptional) |
| 18 May 2010 | Angermunde, DE | daily rain | 42.0 mm (1.7 in) | 23.6 mm (0.9 in) | 104 years | 80 of 100 (Exceptional) |
| 18 May 2020 | Sturgeon Bay Exp Farm, US | daily rain | 77.5 mm (3.1 in) | 44.0 mm (1.7 in) | 102 years | 80 of 100 (Exceptional) |
| 18 May 2000 | Wamsutter, US | monthly snowfall | 30.5 cm (12.0 in) | 20.3 cm (8.0 in) | 67 years | 80 of 100 (Exceptional) |
| 18 May 1955 | Taos, US | all-time rain | 73.7 mm (2.9 in) | 31.5 mm (1.2 in) | 49 years | 80 of 100 (Exceptional) |
| 18 May 2016 | Vero Beach 4SE, US | all-time rain | 295.9 mm (11.6 in) | 83.8 mm (3.3 in) | 49 years | 79 of 100 (Major) |
| 18 May 2000 | Baraboo Wwtp, US | daily rain | 69.9 mm (2.8 in) | 37.4 mm (1.5 in) | 105 years | 78 of 100 (Major) |
| 18 May 2016 | Inverness 3 SE, US | daily rain | 90.2 mm (3.6 in) | 63.5 mm (2.5 in) | 96 years | 78 of 100 (Major) |
| 18 May 1995 | Berry Masonic Village, AU | daily rain | 152.8 mm (6.0 in) | 104.8 mm (4.1 in) | 94 years | 78 of 100 (Major) |
| 18 May 2006 | Springbok, ZA | daily rain | 39.1 mm (1.5 in) | 31.0 mm (1.2 in) | 118 years | 77 of 100 (Major) |
| 18 May 2018 | Northport, US | daily rain | 46.2 mm (1.8 in) | 20.8 mm (0.8 in) | 118 years | 77 of 100 (Major) |
| 18 May 2013 | Kizljar, RU | daily rain | 34.0 mm (1.3 in) | 22.2 mm (0.9 in) | 108 years | 77 of 100 (Major) |
| 18 May 2004 | Coshocton Wpc Plt, US | daily rain | 67.1 mm (2.6 in) | 40.2 mm (1.6 in) | 94 years | 77 of 100 (Major) |
| 18 May 2000 | Marion, US | daily rain | 69.9 mm (2.8 in) | 51.6 mm (2.0 in) | 92 years | 77 of 100 (Major) |
Events
Storms
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).