| 14:53 PST |  Clear | -5°C / 23°F | -16°C / 3°F | 42% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KHRI 102253Z AUTO 00000KT 10SM CLR M05/M16 A3016 RMK AO2 SLP224 T10501161 |
| 13:53 PST |  Clear | -5°C / 23°F | -16°C / 3°F | 42% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KHRI 102153Z AUTO 00000KT 10SM CLR M05/M16 A3016 RMK AO2 SLP226 T10501161 |
| 12:53 PST |  Clear | -7°C / 19°F | -16°C / 3°F | 49% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KHRI 102053Z AUTO 00000KT 10SM CLR M07/M16 A3018 RMK AO2 SLP232 T10671161 58021 |
| 11:53 PST |  Clear | -8°C / 18°F | -16°C / 3°F | 53% | 1023 mb (30.21 in) | Calm | - | 8SM |
| | KHRI 101953Z AUTO 00000KT 8SM CLR M08/M16 A3021 RMK AO2 SLP242 T10781156 |
| 10:53 PST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KHRI 101853Z AUTO 35003KT 10SM CLR M09/M16 A3023 RMK AO2 SLP250 T10941156 |
| 09:53 PST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KHRI 101753Z AUTO 00000KT 10SM CLR M11/M16 A3025 RMK AO2 SLP255 T11111156 11111 21217 50003 |
| 09:41 PST |  Partly Cloudy | -12°C / 10°F | -16°C / 3°F | 72% | 1024 mb (30.24 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHRI 101741Z AUTO 25003KT 10SM FEW006 M12/M16 A3025 RMK AO2 |
| 08:53 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1024 mb (30.24 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KHRI 101653Z AUTO 17005KT 10SM CLR M14/M17 A3025 RMK AO2 SLP256 T11391172 |
| 07:53 PST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1024 mb (30.24 in) | SSE 6 kph (SSE 3.5 mph) | - | 7SM |
| | KHRI 101553Z AUTO 16003KT 7SM CLR M19/M22 A3025 RMK AO2 SLP258 T11891217 |
| 06:53 PST |  Clear | -21°C / -6°F | -22°C / -8°F | 92% | 1024 mb (30.24 in) | Calm | - | 8SM |
| | KHRI 101453Z AUTO 00000KT 8SM CLR M21/M22 A3024 RMK AO2 SLP254 T12061222 56009 |
| 05:53 PST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KHRI 101353Z AUTO 00000KT 10SM CLR M18/M20 A3024 RMK AO2 SLP254 T11781200 |
| 04:53 PST |  Clear | -18°C / 0°F | -21°C / -6°F | 78% | 1024 mb (30.24 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KHRI 101253Z AUTO 15004KT 10SM CLR M18/M21 A3025 RMK AO2 SLP259 T11831206 |
| 03:53 PST |  Clear | -20°C / -4°F | -22°C / -8°F | 84% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KHRI 101153Z AUTO 00000KT 10SM CLR M20/M22 A3027 RMK AO2 SLP262 T12001217 11139 21200 58007 |
| 02:53 PST |  Clear | -19°C / -2°F | -21°C / -6°F | 84% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KHRI 101053Z AUTO 00000KT 10SM CLR M19/M21 A3029 RMK AO2 SLP269 T11891211 |
| 01:53 PST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1026 mb (30.3 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KHRI 100953Z AUTO 20003KT 10SM CLR M18/M20 A3029 RMK AO2 SLP269 T11781200 |
| 00:53 PST |  Clear | -17°C / 1°F | -20°C / -4°F | 78% | 1026 mb (30.3 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KHRI 100853Z AUTO 16003KT 10SM CLR M17/M20 A3029 RMK AO2 SLP269 T11721200 56007 |