| 11:53 PST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1033 mb (30.5 in) | Calm | - | 10SM |
| | KHRI 241953Z AUTO 00000KT 10SM CLR 01/M06 A3049 RMK AO2 SLP331 T00061056 |
| 10:53 PST |  Clear | -1°C / 30°F | -6°C / 21°F | 69% | 1033 mb (30.5 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KHRI 241853Z AUTO 09005KT 10SM CLR M01/M06 A3050 RMK AO2 SLP337 T10061056 |
| 09:53 PST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1033 mb (30.5 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KHRI 241753Z AUTO 10004KT 10SM CLR M02/M04 A3051 RMK AO2 SLP338 T10171044 11017 21094 53010 |
| 08:53 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1033 mb (30.5 in) | Calm | - | 10SM |
| | KHRI 241653Z AUTO 00000KT 10SM CLR M04/M06 A3050 RMK AO2 SLP335 T10441056 |
| 08:09 PST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1033 mb (30.5 in) | Calm | - | 10SM |
| | KHRI 241609Z AUTO 00000KT 10SM CLR M06/M07 A3049 RMK AO2 |
| 08:00 PST |  Clear Fog And Mist | -7°C / 19°F | -7°C / 19°F | 100% | 1033 mb (30.5 in) | Calm | - | 2SM |
| | KHRI 241600Z AUTO 00000KT 2SM BR CLR M07/M07 A3049 RMK AO2 |
| 07:53 PST |  Clear Fog And Mist | -7°C / 19°F | -8°C / 18°F | 93% | 1033 mb (30.5 in) | Calm | - | 3SM |
| | KHRI 241553Z AUTO 00000KT 3SM BR CLR M07/M08 A3049 RMK AO2 SLP331 T10671078 |
| 06:53 PST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1032 mb (30.48 in) | Calm | - | 7SM |
| | KHRI 241453Z AUTO 00000KT 7SM CLR M08/M09 A3048 RMK AO2 SLP329 T10831094 53000 |
| 06:29 PST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1032 mb (30.48 in) | Calm | - | 7SM |
| | KHRI 241429Z AUTO 00000KT 7SM CLR M08/M09 A3048 RMK AO2 |
| 06:21 PST |  Clear Fog And Mist | -9°C / 16°F | -9°C / 16°F | 100% | 1032 mb (30.48 in) | Calm | - | 2 1/2SM |
| | KHRI 241421Z AUTO 00000KT 2 1/2SM BR CLR M09/M09 A3048 RMK AO2 |
| 05:53 PST |  Clear | -8°C / 18°F | -8°C / 18°F | 100% | 1032 mb (30.48 in) | Calm | - | 9SM |
| | KHRI 241353Z AUTO 00000KT 9SM CLR M08/M08 A3048 RMK AO2 SLP328 T10781083 |
| 04:53 PST |  Clear | -8°C / 18°F | -8°C / 18°F | 100% | 1031 mb (30.45 in) | Calm | - | 9SM |
| | KHRI 241253Z AUTO 00000KT 9SM CLR M08/M08 A3046 RMK AO2 SLP323 T10781083 |
| 03:53 PST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1032 mb (30.48 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KHRI 241153Z AUTO 19005KT 10SM CLR M06/M07 A3048 RMK AO2 SLP328 T10611072 11022 21078 58001 |
| 02:53 PST |  Clear Fog And Mist | -6°C / 21°F | -7°C / 19°F | 93% | 1032 mb (30.48 in) | Calm | - | 6SM |
| | KHRI 241053Z AUTO 00000KT 6SM BR CLR M06/M07 A3048 RMK AO2 SLP329 T10611072 |
| 01:53 PST |  Clear | -6°C / 21°F | -7°C / 19°F | 93% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KHRI 240953Z AUTO 00000KT 10SM CLR M06/M07 A3048 RMK AO2 SLP329 T10611067 |
| 00:53 PST |  Clear | -6°C / 21°F | -6°C / 21°F | 100% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KHRI 240853Z AUTO 00000KT 10SM CLR M06/M06 A3048 RMK AO2 SLP328 T10561061 58001 |