On This Day, 27 September: Notable Weather Records
20 notable weather records on 27 September across the years, led by Callao, US, with events and storms for the date.
Key Facts for 27 September
- 20 notable weather records were set or tied on 27 September in 13 years (1979 to 2024).
- Callao set an all-time record daily precipitation of 53.8 mm (2.1 in) on 27 September 1982.
- 10 extreme weather events peaked on 27 September.
- 4 named storms were active on 27 September.
Records on 27 September Through the Years
1979 to 2024| Date | Kind | Detail |
|---|---|---|
| 1979-09-27 | Record daily precipitation | Mount Wedge, 56.0 mm (2.2 in) |
| 1979-09-27 | Record daily precipitation | Port Pirie Nyrstar Comparison, 76.2 mm (3.0 in) |
| 1979-09-27 | Record daily precipitation | Roopena, 70.0 mm (2.8 in) |
| 1979-09-27 | Record daily precipitation | Yacka, 63.0 mm (2.5 in) |
| 1982-09-27 | Record daily precipitation | Callao, 53.8 mm (2.1 in) |
| 1982-09-27 | Record daily precipitation | Ibapah, 79.0 mm (3.1 in) |
| 1985-09-27 | Record daily precipitation | Baltimore Customs House, 117.1 mm (4.6 in) |
| 1985-09-27 | Record daily precipitation | Port Jervis, 163.3 mm (6.4 in) |
| 1996-09-27 | Record daily precipitation | Hopkinsville, 88.1 mm (3.5 in) |
| 2000-09-27 | Record daily precipitation | Candelo Post Office, 70.0 mm (2.8 in) |
| 2002-09-27 | Record daily precipitation | Jackson Exp STN, 181.6 mm (7.1 in) |
| 2004-09-27 | Record daily precipitation | Valdosta 2 S, 156.2 mm (6.1 in) |
| 2009-09-27 | Record daily precipitation | Vladikavkaz, 78.4 mm (3.1 in) |
| 2010-09-27 | Record daily precipitation | Lauchapan, 380.2 mm (15.0 in) |
| 2010-09-27 | Record daily precipitation | Bernburg/Saale (Nord), 44.5 mm (1.8 in) |
| 2013-09-27 | Record daily precipitation | Thermopolis, 48.3 mm (1.9 in) |
| 2014-09-27 | Record daily precipitation | Winnemucca AP, 20.8 mm (0.8 in) |
| 2021-09-27 | Record daily precipitation | Vishakhapatnam, 267.0 mm (10.5 in) |
| 2024-09-27 | Record daily precipitation | Walhalla, 137.7 mm (5.4 in) |
| 2024-09-27 | Record daily precipitation | Clemson UNIV, 152.9 mm (6.0 in) |
Notable Records
| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 September 1982 | Callao, US | all-time rain | 53.8 mm (2.1 in) | 20.8 mm (0.8 in) | 78 years | 91 of 100 (Exceptional) |
| 27 September 2021 | Vishakhapatnam, IN | monthly rain | 267.0 mm (10.5 in) | 118.4 mm (4.7 in) | 107 years | 90 of 100 (Exceptional) |
| 27 September 1979 | Mount Wedge, AU | monthly rain | 56.0 mm (2.2 in) | 22.7 mm (0.9 in) | 95 years | 87 of 100 (Exceptional) |
| 27 September 1979 | Port Pirie Nyrstar Comparison, AU | monthly rain | 76.2 mm (3.0 in) | 37.3 mm (1.5 in) | 71 years | 81 of 100 (Exceptional) |
| 27 September 2010 | Lauchapan, MX | all-time rain | 380.2 mm (15.0 in) | 117.3 mm (4.6 in) | 54 years | 81 of 100 (Exceptional) |
| 27 September 1982 | Ibapah, US | all-time rain | 79.0 mm (3.1 in) | 19.3 mm (0.8 in) | 44 years | 81 of 100 (Exceptional) |
| 27 September 1985 | Baltimore Customs House, US | daily rain | 117.1 mm (4.6 in) | 75.4 mm (3.0 in) | 112 years | 80 of 100 (Exceptional) |
| 27 September 2010 | Bernburg/Saale (Nord), DE | daily rain | 44.5 mm (1.8 in) | 24.9 mm (1.0 in) | 104 years | 80 of 100 (Exceptional) |
| 27 September 2009 | Vladikavkaz, RU | daily rain | 78.4 mm (3.1 in) | 38.3 mm (1.5 in) | 122 years | 79 of 100 (Major) |
| 27 September 2013 | Thermopolis, US | daily rain | 48.3 mm (1.9 in) | 38.4 mm (1.5 in) | 96 years | 79 of 100 (Major) |
| 27 September 1985 | Port Jervis, US | monthly rain | 163.3 mm (6.4 in) | 46.2 mm (1.8 in) | 91 years | 79 of 100 (Major) |
| 27 September 2002 | Jackson Exp STN, US | monthly rain | 181.6 mm (7.1 in) | 80.5 mm (3.2 in) | 66 years | 79 of 100 (Major) |
| 27 September 2004 | Valdosta 2 S, US | daily rain | 156.2 mm (6.1 in) | 105.4 mm (4.1 in) | 94 years | 78 of 100 (Major) |
| 27 September 1979 | Roopena, AU | monthly rain | 70.0 mm (2.8 in) | 28.3 mm (1.1 in) | 69 years | 78 of 100 (Major) |
| 27 September 2024 | Walhalla, US | daily rain | 137.7 mm (5.4 in) | 81.8 mm (3.2 in) | 103 years | 77 of 100 (Major) |
| 27 September 2000 | Candelo Post Office, AU | daily rain | 70.0 mm (2.8 in) | 47.1 mm (1.9 in) | 90 years | 77 of 100 (Major) |
| 27 September 1996 | Hopkinsville, US | daily rain | 88.1 mm (3.5 in) | 59.7 mm (2.4 in) | 90 years | 77 of 100 (Major) |
| 27 September 1979 | Yacka, AU | monthly rain | 63.0 mm (2.5 in) | 20.1 mm (0.8 in) | 71 years | 77 of 100 (Major) |
| 27 September 2024 | Clemson UNIV, US | daily rain | 152.9 mm (6.0 in) | 69.1 mm (2.7 in) | 103 years | 76 of 100 (Major) |
| 27 September 2014 | Winnemucca AP, US | daily rain | 20.8 mm (0.8 in) | 15.0 mm (0.6 in) | 115 years | 20 of 100 (Routine) |
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).