On This Day, 21 April: Notable Weather Records
20 notable weather records on 21 April across the years, led by Musgrave, AU, with events and storms for the date.
Key Facts for 21 April
- 20 notable weather records were set or tied on 21 April in 11 years (1978 to 2023).
- Musgrave set a monthly record daily precipitation of 282.0 mm (11.1 in) on 21 April 2006.
- 6 extreme weather events peaked on 21 April.
- 2 named storms were active on 21 April.
Records on 21 April Through the Years
1978 to 2023| Date | Kind | Detail |
|---|---|---|
| 1978-04-21 | Record daily precipitation | Elliotdale (Tnk), 160.5 mm (6.3 in) |
| 1978-04-21 | Record daily precipitation | Notinsila (Bos), 335.0 mm (13.2 in) |
| 1988-04-21 | Record daily precipitation | Arlington, 37.8 mm (1.5 in) |
| 1989-04-21 | Record daily precipitation | Caledon (Pol), 92.5 mm (3.6 in) |
| 2002-04-21 | Record daily precipitation | Rockville, 101.6 mm (4.0 in) |
| 2006-04-21 | Record daily precipitation | Musgrave, 282.0 mm (11.1 in) |
| 2009-04-21 | Record daily precipitation | Schenley Lock 5, 111.8 mm (4.4 in) |
| 2010-04-21 | Record daily precipitation | Wilmington, 54.6 mm (2.1 in) |
| 2015-04-21 | Record daily precipitation | Sedgefield (Bundajon), 207.2 mm (8.2 in) |
| 2015-04-21 | Record daily precipitation | Glendon Brook (Lilyvale), 200.0 mm (7.9 in) |
| 2015-04-21 | Record daily precipitation | Branxton (Dalwood Vineyard), 160.0 mm (6.3 in) |
| 2017-04-21 | Record daily precipitation | Kaniva, 55.4 mm (2.2 in) |
| 2017-04-21 | Record daily precipitation | Walpeup, 57.8 mm (2.3 in) |
| 2017-04-21 | Record daily precipitation | Natimuk, 41.4 mm (1.6 in) |
| 2017-04-21 | Record daily precipitation | Kerang (Meran Downs), 65.2 mm (2.6 in) |
| 2017-04-21 | Record daily precipitation | Kisinev, 39.9 mm (1.6 in) |
| 2017-04-21 | Record daily precipitation | Wentworth (Burtundy), 58.2 mm (2.3 in) |
| 2021-04-21 | Record daily precipitation | Carpentaria Downs Station, 75.6 mm (3.0 in) |
| 2021-04-21 | Record daily snowfall | Paulding, 12.7 cm (5.0 in) |
| 2023-04-21 | Record snow depth | Woodruff, 35.6 cm (14.0 in) |
Notable Records
| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 21 April 2006 | Musgrave, AU | monthly rain | 282.0 mm (11.1 in) | 94.0 mm (3.7 in) | 112 years | 90 of 100 (Exceptional) |
| 21 April 2015 | Sedgefield (Bundajon), AU | all-time rain | 207.2 mm (8.2 in) | 60.4 mm (2.4 in) | 60 years | 88 of 100 (Exceptional) |
| 21 April 1988 | Arlington, US | monthly rain | 37.8 mm (1.5 in) | 13.2 mm (0.5 in) | 93 years | 87 of 100 (Exceptional) |
| 21 April 2002 | Rockville, US | monthly rain | 101.6 mm (4.0 in) | 42.2 mm (1.7 in) | 84 years | 85 of 100 (Exceptional) |
| 21 April 1978 | Elliotdale (Tnk), ZA | monthly rain | 160.5 mm (6.3 in) | 53.1 mm (2.1 in) | 85 years | 83 of 100 (Exceptional) |
| 21 April 2009 | Schenley Lock 5, US | monthly rain | 111.8 mm (4.4 in) | 44.0 mm (1.7 in) | 71 years | 81 of 100 (Exceptional) |
| 21 April 1978 | Notinsila (Bos), ZA | all-time rain | 335.0 mm (13.2 in) | 68.3 mm (2.7 in) | 54 years | 81 of 100 (Exceptional) |
| 21 April 2017 | Kaniva, AU | daily rain | 55.4 mm (2.2 in) | 32.5 mm (1.3 in) | 121 years | 80 of 100 (Exceptional) |
| 21 April 2017 | Walpeup, AU | daily rain | 57.8 mm (2.3 in) | 38.7 mm (1.5 in) | 103 years | 80 of 100 (Exceptional) |
| 21 April 2017 | Natimuk, AU | daily rain | 41.4 mm (1.6 in) | 25.9 mm (1.0 in) | 103 years | 80 of 100 (Exceptional) |
| 21 April 2017 | Kerang (Meran Downs), AU | daily rain | 65.2 mm (2.6 in) | 39.8 mm (1.6 in) | 103 years | 80 of 100 (Exceptional) |
| 21 April 2010 | Wilmington, AU | daily rain | 54.6 mm (2.1 in) | 44.7 mm (1.8 in) | 100 years | 80 of 100 (Exceptional) |
| 21 April 2017 | Kisinev, MD | daily rain | 39.9 mm (1.6 in) | 24.6 mm (1.0 in) | 100 years | 80 of 100 (Exceptional) |
| 21 April 1989 | Caledon (Pol), ZA | monthly rain | 92.5 mm (3.6 in) | 28.5 mm (1.1 in) | 82 years | 80 of 100 (Exceptional) |
| 21 April 2015 | Glendon Brook (Lilyvale), AU | all-time rain | 200.0 mm (7.9 in) | 72.0 mm (2.8 in) | 50 years | 80 of 100 (Exceptional) |
| 21 April 2021 | Carpentaria Downs Station, AU | daily rain | 75.6 mm (3.0 in) | 67.0 mm (2.6 in) | 107 years | 79 of 100 (Major) |
| 21 April 2023 | Woodruff, US | daily snow depth | 35.6 cm (14.0 in) | 30.5 cm (12.0 in) | 97 years | 79 of 100 (Major) |
| 21 April 2015 | Branxton (Dalwood Vineyard), AU | monthly rain | 160.0 mm (6.3 in) | 43.2 mm (1.7 in) | 88 years | 79 of 100 (Major) |
| 21 April 2017 | Wentworth (Burtundy), AU | monthly rain | 58.2 mm (2.3 in) | 21.9 mm (0.9 in) | 120 years | 78 of 100 (Major) |
| 21 April 2021 | Paulding, US | daily snowfall | 12.7 cm (5.0 in) | 12.7 cm (5.0 in) | 104 years | 78 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).