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 | 50.80mm | 2015-08-24 | 1 | 204.90mm | 2017-08-18 | 1 | 23.80mm | 2015-08-24 |
| 2 | 45.10mm | 2017-08-09 | 2 | 105.60mm | 2015-08-24 | 2 | 20.80mm | 2017-08-18 |
| 3 | 29.60mm | 2025-08-29 | 3 | 95.20mm | 2023-08-05 | 3 | 17.10mm | 2020-08-13 |
| 4 | 24.90mm | 2014-08-25 | 4 | 93.20mm | 2012-08-04 | 4 | 14.40mm | 2025-08-29 |
| 5 | 24.90mm | 2010-08-25 | 5 | 90.00mm | 2023-08-18 | 5 | 11.90mm | 2015-08-13 |
| 6 | 24.80mm | 2022-08-25 | 6 | 80.20mm | 2020-08-13 | 6 | 10.80mm | 2021-08-07 |
| 7 | 23.60mm | 2023-08-05 | 7 | 78.40mm | 2021-08-01 | 7 | 10.40mm | 2012-08-04 |
| 8 | 23.20mm | 2021-08-07 | 8 | 69.80mm | 2021-08-07 | 8 | 10.20mm | 2023-08-05 |
| 9 | 21.20mm | 2017-08-18 | 9 | 56.40mm | 2017-08-20 | 9 | 9.40mm | 2021-08-01 |
| 10 | 21.00mm | 2006-08-23 | 10 | 55.20mm | 2015-08-13 | 10 | 8.80mm | 2023-08-18 |
| 11 | 19.70mm | 2015-08-13 | 11 | 53.00mm | 2025-08-27 | 11 | 8.30mm | 2018-08-16 |
| 12 | 19.20mm | 2010-08-23 | 12 | 46.60mm | 2025-08-29 | 12 | 8.30mm | 2017-08-09 |
| 13 | 18.60mm | 2020-08-13 | 13 | 43.20mm | 2017-08-05 | 13 | 7.80mm | 2014-08-10 |
| 14 | 18.60mm | 2004-08-18 | 14 | 43.20mm | 2018-08-10 | 14 | 7.30mm | 2019-08-09 |
| 15 | 17.60mm | 2019-08-09 | 15 | 43.20mm | 2014-08-10 | 15 | 7.30mm | 2018-08-10 |
| 16 | 16.60mm | 2011-08-04 | 16 | 33.20mm | 2023-08-02 | 16 | 7.30mm | 2014-08-06 |
| 17 | 16.40mm | 2007-08-14 | 17 | 32.40mm | 2023-08-14 | 17 | 7.20mm | 2022-08-25 |
| 18 | 16.00mm | 2005-08-22 | 18 | 31.20mm | 2017-08-01 | 18 | 6.70mm | 2015-08-26 |
| 19 | 15.40mm | 2001-08-09 | 19 | 31.20mm | 2015-08-26 | 19 | 6.60mm | 2023-08-02 |
| 20 | 14.40mm | 2023-08-02 | 20 | 31.10mm | 2013-08-03 | 20 | 6.20mm | 2015-08-14 |
| 21 | 14.40mm | 2005-08-18 | 21 | 25.20mm | 2014-08-11 | 21 | 5.70mm | 2015-08-19 |
| 22 | 14.40mm | 2021-08-01 | 22 | 25.20mm | 2013-08-24 | 22 | 5.70mm | 2016-08-02 |
| 23 | 14.00mm | 2018-08-16 | 23 | 25.20mm | 2020-08-16 | 23 | 5.70mm | 2014-08-25 |
| 24 | 14.00mm | 2017-08-02 | 24 | 24.00mm | 2017-08-09 | 24 | 5.20mm | 2011-08-23 |
| 25 | 14.00mm | 2009-08-06 | 25 | 24.00mm | 2017-08-13 | 25 | 5.20mm | 2014-08-08 |
| 26 | 13.60mm | 2008-08-11 | 26 | 24.00mm | 2019-08-18 | 26 | 5.20mm | 2013-08-24 |
| 27 | 13.50mm | 2018-08-10 | 27 | 21.80mm | 2024-08-06 | 27 | 5.20mm | 2024-08-01 |
| 28 | 13.50mm | 2014-08-10 | 28 | 20.20mm | 2024-08-24 | 28 | 5.20mm | 2014-08-14 |
| 29 | 13.20mm | 2001-08-18 | 29 | 19.20mm | 2018-08-16 | 29 | 5.20mm | 2016-08-01 |
| 30 | 12.90mm | 2013-08-24 | 30 | 19.20mm | 2019-08-12 | 30 | 5.20mm | 2025-08-27 |
| 31 | 12.90mm | 2020-08-19 | 31 | 19.20mm | 2014-08-14 | 31 | 5.20mm | 2017-08-05 |
| 32 | 12.60mm | 2005-08-24 | 32 | 19.20mm | 2017-08-25 | 32 | 4.70mm | 2018-08-29 |
| 33 | 12.40mm | 2016-08-02 | 33 | 19.20mm | 2018-08-13 | 33 | 4.70mm | 2017-08-20 |
| 34 | 12.40mm | 2019-08-12 | 34 | 18.60mm | 2025-08-30 | 34 | 4.70mm | 2019-08-12 |
| 35 | 12.40mm | 2015-08-31 | 35 | 18.00mm | 2022-08-25 | 35 | 4.20mm | 2015-08-31 |
| 36 | 12.00mm | 2003-08-28 | 36 | 18.00mm | 2017-08-19 | 36 | 4.10mm | 2017-08-02 |
| 37 | 12.00mm | 2010-08-10 | 37 | 18.00mm | 2017-08-17 | 37 | 4.10mm | 2017-08-13 |
| 38 | 11.90mm | 2014-08-06 | 38 | 18.00mm | 2018-08-23 | 38 | 4.10mm | 2011-08-04 |
| 39 | 11.90mm | 2014-08-08 | 39 | 17.40mm | 2021-08-09 | 39 | 4.10mm | 2020-08-27 |
| 40 | 11.40mm | 2024-08-24 | 40 | 14.40mm | 2024-08-01 | 40 | 3.60mm | 2015-08-25 |
| 41 | 11.40mm | 2015-08-26 | 41 | 13.60mm | 2024-08-16 | 41 | 3.60mm | 2019-08-10 |
| 42 | 11.40mm | 2012-08-04 | 42 | 13.20mm | 2020-08-28 | 42 | 3.60mm | 2013-08-03 |
| 43 | 11.00mm | 2006-08-17 | 43 | 13.20mm | 2013-08-02 | 43 | 3.60mm | 2019-08-14 |
| 44 | 11.00mm | 2000-08-03 | 44 | 13.20mm | 2019-08-14 | 44 | 3.60mm | 2014-08-09 |
| 45 | 11.00mm | 2023-08-18 | 45 | 13.20mm | 2014-08-25 | 45 | 3.60mm | 2011-08-26 |
| 46 | 10.90mm | 2018-08-26 | 46 | 13.20mm | 2014-08-06 | 46 | 3.60mm | 2021-08-05 |
| 47 | 10.90mm | 2019-08-14 | 47 | 13.20mm | 2018-08-29 | 47 | 3.40mm | 2021-08-09 |
| 48 | 10.90mm | 2015-08-19 | 48 | 13.20mm | 2015-08-19 | 48 | 3.10mm | 2019-08-18 |
| 49 | 10.90mm | 2011-08-23 | 49 | 13.20mm | 2013-08-05 | 49 | 3.10mm | 2020-08-28 |
| 50 | 10.80mm | 2000-08-08 | 50 | 13.20mm | 2015-08-31 | 50 | 3.10mm | 2011-08-25 |