Records are shown as new if they have been set 1 month ago or less. The records shown are the top 10 in each category, but if you would like to change the number then click on one of the numbers below.
Pre 2009, records are from the Met Office official weather station in Redhill (2000-2003) and Charlwood (2004-2008) and only include High Temp, Low Temp and Daily rain
You can change the month by clicking on the relevant buttons below
| High daily rain | High rain rate | High hourly rain | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 23.30mm | 2018-04-30 | 1 | 123.80mm | 2025-04-15 | 1 | 16.00mm | 2012-04-13 |
| 2 | 22.30mm | 2012-04-25 | 2 | 93.00mm | 2023-04-10 | 2 | 7.40mm | 2025-04-15 |
| 3 | 21.80mm | 2012-04-13 | 3 | 50.40mm | 2023-04-12 | 3 | 7.00mm | 2023-04-12 |
| 4 | 21.20mm | 2020-04-28 | 4 | 37.20mm | 2025-04-13 | 4 | 6.20mm | 2020-04-28 |
| 5 | 20.60mm | 2023-04-12 | 5 | 27.60mm | 2022-04-07 | 5 | 6.20mm | 2013-04-27 |
| 6 | 17.00mm | 2024-04-28 | 6 | 25.20mm | 2024-04-04 | 6 | 5.20mm | 2025-04-23 |
| 7 | 16.60mm | 2024-04-02 | 7 | 25.20mm | 2018-04-27 | 7 | 4.80mm | 2022-04-07 |
| 8 | 16.20mm | 2000-04-12 | 8 | 24.00mm | 2019-04-01 | 8 | 4.70mm | 2018-04-22 |
| 9 | 16.00mm | 2024-04-27 | 9 | 24.00mm | 2017-04-04 | 9 | 4.60mm | 2024-04-16 |
| 10 | 15.00mm | 2001-04-08 | 10 | 23.40mm | 2024-04-16 | 10 | 4.40mm | 2024-04-02 |
| 11 | 14.60mm | 2008-04-29 | 11 | 21.40mm | 2024-04-02 | 11 | 4.20mm | 2023-04-27 |
| 12 | 13.80mm | 2004-04-17 | 12 | 19.20mm | 2018-04-01 | 12 | 4.10mm | 2012-04-19 |
| 13 | 13.60mm | 2023-04-27 | 13 | 19.20mm | 2018-04-15 | 13 | 4.10mm | 2016-04-15 |
| 14 | 13.60mm | 2025-04-15 | 14 | 19.20mm | 2018-04-22 | 14 | 4.10mm | 2014-04-22 |
| 15 | 13.50mm | 2016-04-15 | 15 | 19.20mm | 2015-04-29 | 15 | 3.80mm | 2024-04-28 |
| 16 | 13.40mm | 2004-04-18 | 16 | 18.00mm | 2017-04-28 | 16 | 3.60mm | 2023-04-24 |
| 17 | 13.00mm | 2012-04-18 | 17 | 17.00mm | 2024-04-15 | 17 | 3.60mm | 2014-04-21 |
| 18 | 12.60mm | 2004-04-28 | 18 | 14.00mm | 2022-04-06 | 18 | 3.60mm | 2012-04-25 |
| 19 | 12.00mm | 2000-04-14 | 19 | 13.20mm | 2014-04-21 | 19 | 3.10mm | 2018-04-30 |
| 20 | 11.90mm | 2009-04-17 | 20 | 13.20mm | 2013-04-12 | 20 | 3.10mm | 2013-04-12 |
| 21 | 11.40mm | 2012-04-29 | 21 | 13.20mm | 2023-04-27 | 21 | 3.10mm | 2018-04-11 |
| 22 | 11.40mm | 2023-04-10 | 22 | 13.20mm | 2020-04-28 | 22 | 3.10mm | 2013-04-26 |
| 23 | 11.20mm | 2000-04-11 | 23 | 13.20mm | 2012-04-17 | 23 | 3.00mm | 2023-04-10 |
| 24 | 11.20mm | 2023-04-11 | 24 | 13.20mm | 2012-04-25 | 24 | 3.00mm | 2024-04-15 |
| 25 | 11.00mm | 2006-04-30 | 25 | 13.20mm | 2013-04-09 | 25 | 3.00mm | 2023-04-11 |
| 26 | 11.00mm | 2000-04-02 | 26 | 12.00mm | 2014-04-20 | 26 | 3.00mm | 2024-04-04 |
| 27 | 10.90mm | 2009-04-27 | 27 | 12.00mm | 2018-04-26 | 27 | 3.00mm | 2023-04-14 |
| 28 | 10.90mm | 2018-04-27 | 28 | 12.00mm | 2020-04-30 | 28 | 3.00mm | 2022-04-09 |
| 29 | 10.40mm | 2010-04-03 | 29 | 12.00mm | 2022-04-08 | 29 | 2.80mm | 2024-04-08 |
| 30 | 9.80mm | 2014-04-22 | 30 | 12.00mm | 2024-04-28 | 30 | 2.80mm | 2023-04-23 |
| 31 | 9.80mm | 2004-04-03 | 31 | 11.20mm | 2024-04-25 | 31 | 2.80mm | 2023-04-22 |
| 32 | 9.30mm | 2013-04-12 | 32 | 10.20mm | 2023-04-01 | 32 | 2.60mm | 2016-04-11 |
| 33 | 9.30mm | 2012-04-28 | 33 | 9.40mm | 2023-04-06 | 33 | 2.60mm | 2020-04-18 |
| 34 | 9.20mm | 2006-04-09 | 34 | 9.40mm | 2023-04-24 | 34 | 2.60mm | 2018-04-27 |
| 35 | 9.00mm | 2023-04-24 | 35 | 9.20mm | 2022-04-09 | 35 | 2.60mm | 2014-04-20 |
| 36 | 8.60mm | 2003-04-27 | 36 | 9.00mm | 2024-04-08 | 36 | 2.60mm | 2013-04-13 |
| 37 | 8.40mm | 2022-04-07 | 37 | 8.40mm | 2025-04-23 | 37 | 2.60mm | 2015-04-29 |
| 38 | 8.30mm | 2012-04-19 | 38 | 8.20mm | 2023-04-22 | 38 | 2.60mm | 2025-04-13 |
| 39 | 8.20mm | 2025-04-23 | 39 | 8.20mm | 2023-04-14 | 39 | 2.40mm | 2024-04-27 |
| 40 | 8.20mm | 2002-04-27 | 40 | 8.00mm | 2024-04-01 | 40 | 2.20mm | 2023-04-06 |
| 41 | 8.00mm | 2008-04-13 | 41 | 7.20mm | 2014-04-25 | 41 | 2.10mm | 2020-04-29 |
| 42 | 8.00mm | 2001-04-14 | 42 | 7.20mm | 2019-04-09 | 42 | 2.10mm | 2020-04-30 |
| 43 | 7.80mm | 2014-04-07 | 43 | 7.20mm | 2014-04-26 | 43 | 2.10mm | 2014-04-25 |
| 44 | 7.80mm | 2023-04-14 | 44 | 7.20mm | 2015-04-04 | 44 | 2.10mm | 2012-04-29 |
| 45 | 7.80mm | 2018-04-02 | 45 | 7.20mm | 2018-04-30 | 45 | 2.10mm | 2017-04-28 |
| 46 | 7.80mm | 2013-04-13 | 46 | 7.20mm | 2016-04-14 | 46 | 2.10mm | 2019-04-01 |
| 47 | 7.80mm | 2000-04-03 | 47 | 7.20mm | 2016-04-22 | 47 | 2.10mm | 2013-04-10 |
| 48 | 7.60mm | 2001-04-28 | 48 | 7.20mm | 2019-04-04 | 48 | 2.10mm | 2012-04-28 |
| 49 | 7.40mm | 2003-04-28 | 49 | 7.20mm | 2016-04-03 | 49 | 2.10mm | 2012-04-18 |
| 50 | 7.40mm | 2002-04-30 | 50 | 7.20mm | 2016-04-02 | 50 | 2.10mm | 2017-04-04 |