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 | 30.00mm | 2017-05-17 | 1 | 172.00mm | 2023-05-11 | 1 | 19.40mm | 2023-05-11 |
| 2 | 29.40mm | 2000-05-27 | 2 | 138.80mm | 2022-05-31 | 2 | 10.90mm | 2017-05-17 |
| 3 | 26.40mm | 2008-05-25 | 3 | 112.80mm | 2017-05-17 | 3 | 8.80mm | 2018-05-24 |
| 4 | 24.00mm | 2006-05-19 | 4 | 79.00mm | 2024-05-30 | 4 | 8.00mm | 2022-05-19 |
| 5 | 23.60mm | 2003-05-13 | 5 | 74.80mm | 2022-05-18 | 5 | 8.00mm | 2022-05-31 |
| 6 | 21.60mm | 2002-05-13 | 6 | 70.60mm | 2023-05-09 | 6 | 8.00mm | 2022-05-18 |
| 7 | 20.80mm | 2000-05-13 | 7 | 57.40mm | 2023-05-10 | 7 | 7.30mm | 2016-05-10 |
| 8 | 20.60mm | 2023-05-11 | 8 | 51.00mm | 2024-05-02 | 8 | 7.00mm | 2023-05-10 |
| 9 | 20.00mm | 2024-05-06 | 9 | 50.40mm | 2018-05-24 | 9 | 6.40mm | 2025-05-21 |
| 10 | 19.40mm | 2002-05-25 | 10 | 39.40mm | 2025-05-21 | 10 | 5.70mm | 2013-05-28 |
| 11 | 19.20mm | 2016-05-31 | 11 | 39.40mm | 2022-05-24 | 11 | 5.70mm | 2017-05-29 |
| 12 | 18.80mm | 2006-05-07 | 12 | 37.20mm | 2016-05-10 | 12 | 5.70mm | 2018-05-28 |
| 13 | 18.40mm | 2000-05-26 | 13 | 37.20mm | 2019-05-09 | 13 | 5.70mm | 2021-05-18 |
| 14 | 17.80mm | 2007-05-27 | 14 | 33.60mm | 2023-05-01 | 14 | 5.70mm | 2016-05-31 |
| 15 | 16.20mm | 2006-05-24 | 15 | 32.40mm | 2025-05-12 | 15 | 4.80mm | 2024-05-06 |
| 16 | 15.50mm | 2016-05-11 | 16 | 31.20mm | 2016-05-18 | 16 | 4.80mm | 2022-05-30 |
| 17 | 15.00mm | 2019-05-09 | 17 | 29.20mm | 2022-05-30 | 17 | 4.70mm | 2015-05-05 |
| 18 | 15.00mm | 2013-05-28 | 18 | 25.20mm | 2015-05-06 | 18 | 4.70mm | 2012-05-01 |
| 19 | 15.00mm | 2015-05-14 | 19 | 25.20mm | 2018-05-29 | 19 | 4.60mm | 2025-05-27 |
| 20 | 13.60mm | 2002-05-21 | 20 | 25.20mm | 2021-05-18 | 20 | 4.40mm | 2025-05-24 |
| 21 | 13.60mm | 2002-05-03 | 21 | 24.00mm | 2022-05-11 | 21 | 4.20mm | 2023-05-09 |
| 22 | 13.60mm | 2004-05-03 | 22 | 22.20mm | 2024-05-04 | 22 | 4.20mm | 2024-05-30 |
| 23 | 13.50mm | 2009-05-26 | 23 | 19.20mm | 2011-05-26 | 23 | 4.10mm | 2013-05-15 |
| 24 | 13.00mm | 2004-05-04 | 24 | 19.20mm | 2018-05-02 | 24 | 4.10mm | 2011-05-26 |
| 25 | 13.00mm | 2022-05-31 | 25 | 19.20mm | 2016-05-11 | 25 | 3.60mm | 2016-05-18 |
| 26 | 12.60mm | 2007-05-11 | 26 | 19.20mm | 2017-05-25 | 26 | 3.60mm | 2015-05-04 |
| 27 | 12.40mm | 2018-05-24 | 27 | 19.20mm | 2018-05-08 | 27 | 3.60mm | 2013-05-30 |
| 28 | 12.40mm | 2006-05-21 | 28 | 18.00mm | 2015-05-14 | 28 | 3.60mm | 2015-05-19 |
| 29 | 11.90mm | 2014-05-01 | 29 | 18.00mm | 2015-05-29 | 29 | 3.60mm | 2015-05-29 |
| 30 | 11.90mm | 2017-05-18 | 30 | 18.00mm | 2021-05-17 | 30 | 3.60mm | 2012-05-07 |
| 31 | 11.40mm | 2014-05-26 | 31 | 18.00mm | 2018-05-09 | 31 | 3.60mm | 2014-05-22 |
| 32 | 11.40mm | 2018-05-02 | 32 | 13.20mm | 2020-05-01 | 32 | 3.60mm | 2019-05-09 |
| 33 | 11.40mm | 2021-05-16 | 33 | 13.20mm | 2021-05-16 | 33 | 3.60mm | 2019-05-08 |
| 34 | 11.40mm | 2016-05-10 | 34 | 13.20mm | 2015-05-19 | 34 | 3.20mm | 2024-05-02 |
| 35 | 11.00mm | 2023-05-06 | 35 | 13.20mm | 2021-05-24 | 35 | 3.10mm | 2013-05-11 |
| 36 | 10.90mm | 2018-05-29 | 36 | 13.20mm | 2018-05-27 | 36 | 3.10mm | 2015-05-06 |
| 37 | 10.80mm | 2023-05-09 | 37 | 13.20mm | 2016-05-31 | 37 | 3.10mm | 2016-05-11 |
| 38 | 10.40mm | 2010-05-02 | 38 | 13.20mm | 2013-05-15 | 38 | 3.10mm | 2018-05-02 |
| 39 | 10.40mm | 2009-05-14 | 39 | 13.20mm | 2013-05-28 | 39 | 3.10mm | 2015-05-14 |
| 40 | 10.00mm | 2008-05-27 | 40 | 13.20mm | 2013-05-30 | 40 | 3.10mm | 2014-05-01 |
| 41 | 9.80mm | 2002-05-23 | 41 | 13.20mm | 2016-05-23 | 41 | 3.10mm | 2021-05-17 |
| 42 | 9.80mm | 2014-05-24 | 42 | 13.20mm | 2021-05-01 | 42 | 3.10mm | 2012-05-15 |
| 43 | 9.80mm | 2005-05-19 | 43 | 13.20mm | 2013-05-13 | 43 | 3.10mm | 2014-05-24 |
| 44 | 9.80mm | 2017-05-29 | 44 | 13.20mm | 2019-05-08 | 44 | 3.10mm | 2018-05-29 |
| 45 | 9.60mm | 2002-05-20 | 45 | 13.20mm | 2015-05-31 | 45 | 2.80mm | 2022-05-11 |
| 46 | 9.60mm | 2000-05-24 | 46 | 13.20mm | 2022-05-04 | 46 | 2.80mm | 2022-05-20 |
| 47 | 9.40mm | 2004-05-31 | 47 | 13.20mm | 2014-05-24 | 47 | 2.80mm | 2023-05-06 |
| 48 | 9.30mm | 2019-05-08 | 48 | 13.20mm | 2015-05-05 | 48 | 2.60mm | 2012-05-10 |
| 49 | 9.30mm | 2012-05-10 | 49 | 12.80mm | 2024-05-27 | 49 | 2.60mm | 2021-05-16 |
| 50 | 9.30mm | 2021-05-08 | 50 | 12.60mm | 2025-05-24 | 50 | 2.60mm | 2014-05-27 |