| 13:53 PST |  Overcast | -1°C / 30°F | -5°C / 23°F | 75% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KHRI 252153Z AUTO 00000KT 10SM OVC025 M01/M05 A3044 RMK AO2 SLP315 T10111050 |
| 12:53 PST |  Overcast | -1°C / 30°F | -5°C / 23°F | 75% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KHRI 252053Z AUTO 00000KT 10SM OVC025 M01/M05 A3045 RMK AO2 SLP318 T10111050 58009 |
| 11:53 PST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KHRI 251953Z AUTO 00000KT 10SM OVC025 M02/M06 A3046 RMK AO2 SLP322 T10171056 |
| 10:53 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KHRI 251853Z AUTO 00000KT 10SM OVC025 M02/M04 A3047 RMK AO2 SLP325 T10171039 |
| 09:53 PST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1032 mb (30.48 in) | N 6 kph (N 3.5 mph) | - | 7SM |
| | KHRI 251753Z AUTO 35003KT 7SM OVC025 M03/M04 A3048 RMK AO2 SLP329 T10281039 11028 21039 53008 |
| 08:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | NW 6 kph (NW 3.5 mph) | - | 6SM |
| | KHRI 251653Z AUTO 32003KT 6SM BR OVC027 M03/M04 A3046 RMK AO2 SLP323 T10281039 |
| 07:53 PST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 9SM |
| | KHRI 251553Z AUTO 00000KT 9SM OVC027 M03/M04 A3045 RMK AO2 SLP319 T10331044 |
| 06:53 PST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 8SM |
| | KHRI 251453Z AUTO 00000KT 8SM OVC025 M03/M04 A3045 RMK AO2 SLP319 T10331039 50002 |
| 05:53 PST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 7SM |
| | KHRI 251353Z AUTO 00000KT 7SM FEW013 OVC025 M03/M04 A3045 RMK AO2 SLP320 T10331044 |
| 04:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 5SM |
| | KHRI 251253Z AUTO 00000KT 5SM BR FEW013 OVC023 M03/M04 A3044 RMK AO2 SLP317 T10331044 |
| 04:49 PST |  Overcast Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 5SM |
| | KHRI 251249Z AUTO 00000KT 5SM BR FEW013 OVC023 M03/M04 A3044 RMK AO2 |
| 04:01 PST |  Overcast Fog And Mist | -4°C / 25°F | -5°C / 23°F | 93% | 1031 mb (30.45 in) | Calm | - | 5SM |
| | KHRI 251201Z AUTO 00000KT 5SM BR BKN013 OVC023 M04/M05 A3045 RMK AO2 |
| 03:53 PST |  Overcast Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1031 mb (30.45 in) | Calm | - | 6SM |
| | KHRI 251153Z AUTO 00000KT 6SM BR SCT013 OVC023 M04/M04 A3045 RMK AO2 SLP320 T10391044 11033 21083 53001 |
| 02:53 PST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1031 mb (30.45 in) | Calm | - | 9SM |
| | KHRI 251053Z AUTO 00000KT 9SM OVC021 M03/M04 A3045 RMK AO2 SLP317 T10331039 |
| 01:53 PST |  Overcast | -4°C / 25°F | -5°C / 23°F | 93% | 1031 mb (30.45 in) | Calm | - | 9SM |
| | KHRI 250953Z AUTO 00000KT 9SM OVC021 M04/M05 A3044 RMK AO2 SLP315 T10391050 |
| 00:53 PST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1031 mb (30.45 in) | Calm | - | 8SM |
| | KHRI 250853Z AUTO 00000KT 8SM FEW012 OVC023 M05/M06 A3045 RMK AO2 SLP320 T10501061 56000 |
| 00:50 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1031 mb (30.45 in) | Calm | - | 8SM |
| | KHRI 250850Z AUTO 00000KT 8SM SCT012 OVC023 M06/M07 A3045 RMK AO2 |
| 00:24 PST |  Mostly Cloudy | -7°C / 19°F | -7°C / 19°F | 100% | 1031 mb (30.45 in) | E 6 kph (E 3.5 mph) | - | 9SM |
| | KHRI 250824Z AUTO 08003KT 9SM BKN014 M07/M07 A3045 RMK AO2 |
| 00:00 PST |  Partly Cloudy | -7°C / 19°F | -8°C / 18°F | 93% | 1031 mb (30.45 in) | ENE 6 kph (ENE 3.5 mph) | - | 7SM |
| | KHRI 250800Z AUTO 07003KT 7SM SCT016 M07/M08 A3045 RMK AO2 |