| 2026-10-23 | Manjimup | Record low maximum temperature (provisional) | 13.2 C (55.8 F) | 2.2 C (4.0 F) | 52 | 27 of 100 (Routine) |
| 2026-10-23 | Karnet | Record low maximum temperature (provisional) | 15.5 C (59.9 F) | 0.2 C (0.4 F) | 52 | 21 of 100 (Routine) |
| 2026-10-23 | Bunbury | Record low maximum temperature (provisional) | 17.1 C (62.8 F) | 1.9 C (3.4 F) | 24 | 16 of 100 (Routine) |
| 2026-10-23 | Gingin Aero | Record low maximum temperature (provisional) | 18.4 C (65.1 F) | 1.6 C (2.9 F) | 24 | 13 of 100 (Routine) |
| 2026-10-23 | Jandakot Aero | Record low maximum temperature (provisional) | 18.3 C (64.9 F) | 1.0 C (1.8 F) | 24 | 12 of 100 (Routine) |
| 2026-10-23 | Perth Metro | Record low maximum temperature (provisional) | 18.4 C (65.1 F) | 1.0 C (1.8 F) | 24 | 12 of 100 (Routine) |
| 2026-10-23 | Bickley | Record low maximum temperature (provisional) | 15.8 C (60.4 F) | 0.8 C (1.4 F) | 29 | 12 of 100 (Routine) |
| 2026-10-23 | Rocky Gully | Record low maximum temperature (provisional) | 13.4 C (56.1 F) | 1.4 C (2.5 F) | 16 | 11 of 100 (Routine) |
| 2026-10-23 | Windy Harbour | Record low maximum temperature (provisional) | 16.0 C (60.8 F) | 0.5 C (0.9 F) | 3 | 5 of 100 (Routine) |
| 2026-10-23 | York | Record low minimum temperature (tie) (provisional) | 2.6 C (36.7 F) | tie | 9 | 1 of 100 (Routine) |
| 2026-10-24 | Northam | Record low minimum temperature (provisional) | 2.5 C (36.5 F) | 1.9 C (3.4 F) | 116 | 45 of 100 (Notable) |
| 2026-10-24 | Narrogin | Record low minimum temperature (provisional) | 0.0 C (32.0 F) | 1.1 C (2.0 F) | 104 | 43 of 100 (Notable) |
| 2026-10-24 | Manjimup | Record low minimum temperature (provisional) | 3.5 C (38.3 F) | 1.6 C (2.9 F) | 60 | 31 of 100 (Routine) |
| 2026-10-24 | Brookton | Record low minimum temperature (provisional) | -0.5 C (31.1 F) | 1.6 C (2.9 F) | 57 | 27 of 100 (Routine) |
| 2026-10-24 | Ongerup | Record low minimum temperature (provisional) | 0.0 C (32.0 F) | 3.1 C (5.6 F) | 40 | 27 of 100 (Routine) |
| 2026-10-24 | Rottnest Island | Record low minimum temperature (provisional) | 9.1 C (48.4 F) | 3.2 C (5.8 F) | 24 | 26 of 100 (Routine) |
| 2026-10-24 | Cape Naturaliste | Record low maximum temperature (provisional) | 16.7 C (62.1 F) | 0.5 C (0.9 F) | 63 | 26 of 100 (Routine) |
| 2026-10-24 | Manjimup | Record low maximum temperature (provisional) | 13.3 C (55.9 F) | 0.9 C (1.6 F) | 53 | 25 of 100 (Routine) |
| 2026-10-24 | Karnet | Record low maximum temperature (provisional) | 15.8 C (60.4 F) | 0.8 C (1.4 F) | 59 | 24 of 100 (Routine) |
| 2026-10-24 | Perth Airport | Record low minimum temperature (provisional) | 3.8 C (38.8 F) | 1.5 C (2.7 F) | 39 | 23 of 100 (Routine) |
| 2026-10-24 | Pearce Raaf | Record low minimum temperature (provisional) | 3.5 C (38.3 F) | 1.4 C (2.5 F) | 39 | 23 of 100 (Routine) |
| 2026-10-24 | Beverley | Record low minimum temperature (provisional) | 1.0 C (33.8 F) | 0.6 C (1.1 F) | 57 | 23 of 100 (Routine) |
| 2026-10-24 | Ravensthorpe | Record low minimum temperature (provisional) | 3.1 C (37.6 F) | 1.8 C (3.2 F) | 40 | 23 of 100 (Routine) |
| 2026-10-24 | Karnet | Record low minimum temperature (provisional) | 3.0 C (37.4 F) | 1.0 C (1.8 F) | 45 | 22 of 100 (Routine) |
| 2026-10-24 | Dwellingup | Record low minimum temperature (provisional) | 2.4 C (36.3 F) | 0.7 C (1.3 F) | 45 | 22 of 100 (Routine) |
| 2026-10-24 | Perth Metro | Record low minimum temperature (provisional) | 6.4 C (43.5 F) | 3.4 C (6.1 F) | 25 | 20 of 100 (Routine) |
| 2026-10-24 | Dwellingup | Record low maximum temperature (provisional) | 15.8 C (60.4 F) | 0.1 C (0.2 F) | 44 | 20 of 100 (Routine) |
| 2026-10-24 | Jurien Bay | Record low maximum temperature (provisional) | 19.9 C (67.8 F) | 0.4 C (0.7 F) | 45 | 19 of 100 (Routine) |
| 2026-10-24 | Hyden | Record low minimum temperature (provisional) | 3.9 C (39.0 F) | 0.1 C (0.2 F) | 45 | 18 of 100 (Routine) |
| 2026-10-24 | Wongan Hills | Record low minimum temperature (provisional) | 4.0 C (39.2 F) | 2.6 C (4.7 F) | 16 | 17 of 100 (Routine) |
| 2026-10-24 | Bickley | Record low minimum temperature (provisional) | 5.0 C (41.0 F) | 2.0 C (3.6 F) | 24 | 17 of 100 (Routine) |
| 2026-10-24 | Mount Magnet Aero | Record low maximum temperature (provisional) | 21.9 C (71.4 F) | 3.2 C (5.8 F) | 24 | 16 of 100 (Routine) |
| 2026-10-24 | Jandakot Aero | Record low minimum temperature (provisional) | 4.4 C (39.9 F) | 1.6 C (2.9 F) | 29 | 15 of 100 (Routine) |
| 2026-10-24 | Rocky Gully | Record low maximum temperature (provisional) | 13.0 C (55.4 F) | 2.2 C (4.0 F) | 24 | 15 of 100 (Routine) |
| 2026-10-24 | Perth Metro | Record low maximum temperature (provisional) | 18.1 C (64.6 F) | 1.5 C (2.7 F) | 27 | 14 of 100 (Routine) |
| 2026-10-24 | Swanbourne | Record low maximum temperature (provisional) | 17.6 C (63.7 F) | 1.1 C (2.0 F) | 27 | 13 of 100 (Routine) |
| 2026-10-24 | Rottnest Island | Record low maximum temperature (provisional) | 17.0 C (62.6 F) | 0.4 C (0.7 F) | 24 | 12 of 100 (Routine) |
| 2026-10-24 | Rocky Gully | Record low minimum temperature (provisional) | 2.3 C (36.1 F) | 2.3 C (4.1 F) | 5 | 12 of 100 (Routine) |
| 2026-10-24 | Mount Magnet Aero | Record low minimum temperature (provisional) | 10.2 C (50.4 F) | 0.5 C (0.9 F) | 24 | 11 of 100 (Routine) |
| 2026-10-24 | Wongan Hills | Record low maximum temperature (provisional) | 20.2 C (68.4 F) | 0.3 C (0.5 F) | 17 | 11 of 100 (Routine) |
| 2026-10-24 | Swanbourne | Record low minimum temperature (provisional) | 7.4 C (45.3 F) | 2.3 C (4.1 F) | 1 | 11 of 100 (Routine) |
| 2026-10-24 | Windy Harbour | Record low maximum temperature (provisional) | 15.7 C (60.3 F) | 1.0 C (1.8 F) | 13 | 11 of 100 (Routine) |
| 2026-10-24 | Leinster Aero | Record low maximum temperature (provisional) | 23.2 C (73.8 F) | 0.9 C (1.6 F) | 24 | 11 of 100 (Routine) |
| 2026-10-24 | York | Record low minimum temperature (provisional) | 0.4 C (32.7 F) | 2.8 C (5.0 F) | 3 | 10 of 100 (Routine) |
| 2026-10-24 | Wagin | Record low maximum temperature (provisional) | 16.5 C (61.7 F) | 0.5 C (0.9 F) | 15 | 10 of 100 (Routine) |
| 2026-10-24 | Jandakot Aero | Record low maximum temperature (provisional) | 18.1 C (64.6 F) | 1.8 C (3.2 F) | 8 | 9 of 100 (Routine) |
| 2026-10-24 | Jacup | Record low minimum temperature (provisional) | 0.7 C (33.3 F) | 2.2 C (4.0 F) | 3 | 9 of 100 (Routine) |
| 2026-10-24 | Badgingarra Research STN | Record low maximum temperature (provisional) | 18.8 C (65.8 F) | 1.3 C (2.3 F) | 0 | 8 of 100 (Routine) |
| 2026-10-24 | Gingin Aero | Record low maximum temperature (provisional) | 18.1 C (64.6 F) | 2.2 C (4.0 F) | 0 | 8 of 100 (Routine) |
| 2026-10-24 | Newdegate Research Station | Record low minimum temperature (provisional) | 1.5 C (34.7 F) | 2.0 C (3.6 F) | 3 | 8 of 100 (Routine) |
| 2026-10-24 | Bunbury | Record low maximum temperature (provisional) | 16.9 C (62.4 F) | 1.4 C (2.5 F) | 0 | 7 of 100 (Routine) |
| 2026-10-24 | Bickley | Record low maximum temperature (provisional) | 15.3 C (59.5 F) | 1.7 C (3.1 F) | 0 | 6 of 100 (Routine) |
| 2026-10-24 | Wagin | Record low minimum temperature (provisional) | 2.0 C (35.6 F) | 0.4 C (0.7 F) | 3 | 6 of 100 (Routine) |
| 2026-10-24 | Pearce Raaf | Record low maximum temperature (tie) (provisional) | 19.4 C (66.9 F) | tie | 27 | 4 of 100 (Routine) |
| 2026-10-24 | Bunbury | Record low minimum temperature (tie) (provisional) | 4.0 C (39.2 F) | tie | 24 | 2 of 100 (Routine) |
| 2026-10-25 | Pearce Raaf | Record low minimum temperature (provisional) | 1.5 C (34.7 F) | 4.8 C (8.6 F) | 80 | 46 of 100 (Notable) |
| 2026-10-25 | Perth Airport | Record low minimum temperature (provisional) | 3.0 C (37.4 F) | 2.3 C (4.1 F) | 80 | 39 of 100 (Notable) |
| 2026-10-25 | Northam | Record low minimum temperature (provisional) | 2.5 C (36.5 F) | 0.3 C (0.5 F) | 97 | 39 of 100 (Notable) |
| 2026-10-25 | Narrogin | Record low minimum temperature (provisional) | 1.1 C (34.0 F) | 0.3 C (0.5 F) | 97 | 39 of 100 (Notable) |
| 2026-10-25 | Carnarvon Airport | Record low minimum temperature (provisional) | 12.9 C (55.2 F) | 0.4 C (0.7 F) | 72 | 30 of 100 (Routine) |
| 2026-10-25 | Brookton | Record low minimum temperature (provisional) | 0.0 C (32.0 F) | 2.8 C (5.0 F) | 57 | 30 of 100 (Routine) |
| 2026-10-25 | Dwellingup | Record low minimum temperature (provisional) | 2.3 C (36.1 F) | 1.6 C (2.9 F) | 57 | 28 of 100 (Routine) |
| 2026-10-25 | Perth Metro | Record low minimum temperature (provisional) | 4.8 C (40.6 F) | 4.0 C (7.2 F) | 27 | 23 of 100 (Routine) |
| 2026-10-25 | Beverley | Record low minimum temperature (provisional) | 1.2 C (34.2 F) | 0.7 C (1.3 F) | 57 | 23 of 100 (Routine) |
| 2026-10-25 | Badgingarra Research STN | Record low minimum temperature (provisional) | 5.3 C (41.5 F) | 0.1 C (0.2 F) | 53 | 22 of 100 (Routine) |
| 2026-10-25 | Jandakot Aero | Record low minimum temperature (provisional) | 2.0 C (35.6 F) | 3.3 C (5.9 F) | 32 | 20 of 100 (Routine) |
| 2026-10-25 | Kalgoorlie-Boulder Airport | Record low minimum temperature (provisional) | 3.9 C (39.0 F) | 1.6 C (2.9 F) | 27 | 20 of 100 (Routine) |
| 2026-10-25 | Wongan Hills | Record low minimum temperature (provisional) | 4.6 C (40.3 F) | 1.8 C (3.2 F) | 27 | 19 of 100 (Routine) |
| 2026-10-25 | Gingin Aero | Record low minimum temperature (provisional) | -0.4 C (31.3 F) | 0.3 C (0.5 F) | 22 | 19 of 100 (Routine) |
| 2026-10-25 | Dalwallinu Comparison | Record low minimum temperature (provisional) | 5.9 C (42.6 F) | 1.2 C (2.2 F) | 27 | 18 of 100 (Routine) |
| 2026-10-25 | York | Record low minimum temperature (provisional) | 0.0 C (32.0 F) | 3.2 C (5.8 F) | 24 | 18 of 100 (Routine) |
| 2026-10-25 | Swanbourne | Record low minimum temperature (provisional) | 6.6 C (43.9 F) | 1.8 C (3.2 F) | 27 | 17 of 100 (Routine) |
| 2026-10-25 | Mount Magnet Aero | Record low minimum temperature (provisional) | 9.2 C (48.6 F) | 1.7 C (3.1 F) | 24 | 14 of 100 (Routine) |
| 2026-10-25 | Karnet | Record low minimum temperature (provisional) | 2.4 C (36.3 F) | 1.9 C (3.4 F) | 9 | 14 of 100 (Routine) |
| 2026-10-25 | Rottnest Island | Record low minimum temperature (provisional) | 10.4 C (50.7 F) | 0.6 C (1.1 F) | 29 | 14 of 100 (Routine) |
| 2026-10-25 | Bickley | Record low minimum temperature (provisional) | 4.4 C (39.9 F) | 1.0 C (1.8 F) | 29 | 14 of 100 (Routine) |
| 2026-10-25 | Hyden | Record low minimum temperature (provisional) | 2.0 C (35.6 F) | 1.0 C (1.8 F) | 24 | 14 of 100 (Routine) |
| 2026-10-25 | Ravensthorpe | Record low minimum temperature (provisional) | 3.8 C (38.8 F) | 2.2 C (4.0 F) | 9 | 14 of 100 (Routine) |
| 2026-10-25 | Leinster Aero | Record low maximum temperature (provisional) | 21.5 C (70.7 F) | 1.7 C (3.1 F) | 29 | 14 of 100 (Routine) |
| 2026-10-25 | Leinster Aero | Record low minimum temperature (provisional) | 9.8 C (49.6 F) | 1.8 C (3.2 F) | 24 | 14 of 100 (Routine) |
| 2026-10-25 | Mount Magnet Aero | Record low maximum temperature (provisional) | 22.4 C (72.3 F) | 0.4 C (0.7 F) | 20 | 9 of 100 (Routine) |
| 2026-10-25 | Dalwallinu Comparison | Record low maximum temperature (provisional) | 12.1 C (53.8 F) | 0.7 C (1.3 F) | 3 | 8 of 100 (Routine) |
| 2026-10-25 | Windy Harbour | Record low minimum temperature (tie) (provisional) | 5.5 C (41.9 F) | tie | 40 | 4 of 100 (Routine) |
| 2026-10-25 | Wagin | Record low minimum temperature (tie) (provisional) | 1.5 C (34.7 F) | tie | 9 | 1 of 100 (Routine) |
| 2026-10-26 | Kalbarri | Record low minimum temperature (provisional) | 6.6 C (43.9 F) | 1.3 C (2.3 F) | 20 | 15 of 100 (Routine) |
| 2026-10-26 | Mount Magnet Aero | Record low minimum temperature (provisional) | 9.3 C (48.7 F) | 0.9 C (1.6 F) | 20 | 11 of 100 (Routine) |
| 2026-10-26 | Leinster Aero | Record low minimum temperature (provisional) | 9.7 C (49.5 F) | 1.0 C (1.8 F) | 20 | 11 of 100 (Routine) |
| 2026-10-26 | Dalwallinu Comparison | Record low maximum temperature (provisional) | 13.4 C (56.1 F) | 0.7 C (1.3 F) | 3 | 8 of 100 (Routine) |
| 2026-10-26 | Jacup | Record low minimum temperature (provisional) | 3.2 C (37.8 F) | 0.6 C (1.1 F) | 4 | 5 of 100 (Routine) |
| 2026-10-27 | Gascoyne Junction | Record low minimum temperature (provisional) | 10.5 C (50.9 F) | 3.0 C (5.4 F) | 36 | 27 of 100 (Routine) |