| 13:53 PST |  Clear | -6°C / 21°F | -18°C / 0°F | 38% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KHRI 092153Z AUTO 00000KT 10SM CLR M06/M18 A3032 RMK AO2 SLP280 T10561183 |
| 12:53 PST |  Clear | -6°C / 21°F | -18°C / 0°F | 38% | 1027 mb (30.33 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KHRI 092053Z AUTO 34003KT 10SM CLR M06/M18 A3033 RMK AO2 SLP283 T10611183 58010 |
| 11:53 PST |  Clear | -7°C / 19°F | -17°C / 1°F | 45% | 1027 mb (30.33 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KHRI 091953Z AUTO 28005KT 10SM CLR M07/M17 A3034 RMK AO2 SLP288 T10721172 |
| 10:53 PST |  Clear | -9°C / 16°F | -18°C / 0°F | 48% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KHRI 091853Z AUTO 00000KT 10SM CLR M09/M18 A3035 RMK AO2 SLP292 T10891178 |
| 09:53 PST |  Clear | -10°C / 14°F | -17°C / 1°F | 57% | 1028 mb (30.36 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHRI 091753Z AUTO 26003KT 10SM CLR M10/M17 A3036 RMK AO2 SLP295 T11001167 11100 21161 50007 |
| 08:53 PST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1028 mb (30.36 in) | Calm | - | 8SM |
| | KHRI 091653Z AUTO 00000KT 8SM CLR M13/M16 A3036 RMK AO2 SLP296 T11281161 |
| 07:53 PST |  Partly Cloudy | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KHRI 091553Z AUTO 00000KT 10SM SCT120 M14/M17 A3035 RMK AO2 SLP290 T11391172 |
| 06:53 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1027 mb (30.33 in) | Calm | - | 8SM |
| | KHRI 091453Z AUTO 00000KT 8SM CLR M14/M17 A3034 RMK AO2 SLP288 T11391172 56005 |
| 05:53 PST |  Clear | -15°C / 5°F | -18°C / 0°F | 78% | 1027 mb (30.33 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KHRI 091353Z AUTO 14003KT 10SM CLR M15/M18 A3034 RMK AO2 SLP288 T11501178 |
| 04:53 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KHRI 091253Z AUTO 17004KT 10SM CLR M14/M17 A3035 RMK AO2 SLP292 T11441172 |
| 03:53 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KHRI 091153Z AUTO 00000KT 10SM CLR M16/M18 A3036 RMK AO2 SLP292 T11611183 11156 21189 53006 |
| 02:53 PST |  Clear | -16°C / 3°F | -20°C / -4°F | 72% | 1028 mb (30.36 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KHRI 091053Z AUTO 13003KT 10SM CLR M16/M20 A3035 RMK AO2 SLP289 T11611200 |
| 01:53 PST |  Clear | -17°C / 1°F | -20°C / -4°F | 78% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KHRI 090953Z AUTO 00000KT 10SM CLR M17/M20 A3034 RMK AO2 SLP287 T11671200 |
| 00:53 PST |  Clear | -19°C / -2°F | -21°C / -6°F | 84% | 1027 mb (30.33 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KHRI 090853Z AUTO 14004KT 10SM CLR M19/M21 A3034 RMK AO2 SLP286 T11891211 56011 |