| 08:53 PST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KYKM 251653Z 00000KT 10SM OVC025 M02/M06 A3045 RMK AO2 SLP326 T10221056 |
| 07:53 PST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1031 mb (30.45 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KYKM 251553Z 01004KT 10SM OVC025 M02/M06 A3044 RMK AO2 SLP320 T10171061 |
| 06:53 PST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1030 mb (30.42 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KYKM 251453Z 33006KT 10SM OVC023 M02/M06 A3043 RMK AO2 SLP318 T10171056 53000 |
| 05:53 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KYKM 251353Z 00000KT 10SM OVC021 M02/M05 A3042 RMK AO2 SLP316 T10171050 |
| 04:53 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KYKM 251253Z AUTO 00000KT 10SM OVC021 M02/M04 A3042 RMK AO2 SLP313 T10221044 |
| 03:53 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KYKM 251153Z AUTO 00000KT 10SM OVC021 M02/M05 A3043 RMK AO2 SLP317 T10221050 11017 21022 50001 |
| 02:53 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1030 mb (30.42 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KYKM 251053Z AUTO 20003KT 10SM OVC023 M02/M05 A3043 RMK AO2 SLP318 T10221050 |
| 01:53 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1030 mb (30.42 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KYKM 250953Z AUTO 32004KT 10SM OVC023 M02/M05 A3042 RMK AO2 SLP315 T10221050 |
| 00:53 PST |  Overcast | -2°C / 28°F | -5°C / 23°F | 80% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KYKM 250853Z AUTO 00000KT 10SM OVC025 M02/M05 A3042 RMK AO2 SLP316 T10221050 58001 |