| 18:53 PST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | SSW 6 kph (SSW 3.5 mph) | - | 7SM |
| | KYKM 050253Z 24003KT 7SM OVC012 M04/M06 A3017 RMK AO2 SLP233 T10391056 50003 |
| 17:53 PST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | W 11 kph (W 6.9 mph) | - | 7SM |
| | KYKM 050153Z 28006KT 7SM OVC012 M03/M06 A3018 RMK AO2 SLP234 T10331056 |
| 16:53 PST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | Calm | - | 8SM |
| | KYKM 050053Z 00000KT 8SM OVC012 M03/M06 A3018 RMK AO2 SLP234 T10331056 |
| 15:53 PST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KYKM 042353Z 00000KT 7SM OVC012 M03/M06 A3017 RMK AO2 SLP231 T10281056 11028 21039 53002 |
| 14:53 PST |  Overcast Hazy | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | S 6 kph (S 3.5 mph) | - | 6SM |
| | KYKM 042253Z 18003KT 6SM HZ OVC012 M03/M06 A3016 RMK AO2 SLP229 T10281056 |
| 13:53 PST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | Calm | - | 7SM |
| | KYKM 042153Z 00000KT 7SM OVC012 M03/M06 A3015 RMK AO2 SLP226 T10281056 |
| 12:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1021 mb (30.15 in) | SSW 9 kph (SSW 5.8 mph) | - | 6SM |
| | KYKM 042053Z 24005KT 6SM BR OVC012 M03/M06 A3016 RMK AO2 SLP229 T10331056 58012 |
| 11:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | Calm | - | 6SM |
| | KYKM 041953Z 00000KT 6SM BR OVC010 M03/M06 A3017 RMK AO2 SLP234 T10331056 |
| 10:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | SSE 7 kph (SSE 4.6 mph) | - | 6SM |
| | KYKM 041853Z 16004KT 6SM BR OVC010 M03/M06 A3019 RMK AO2 SLP237 T10331056 |
| 09:53 PST |  Overcast Fog And Mist | -3°C / 27°F | -5°C / 23°F | 86% | 1022 mb (30.18 in) | SSW 6 kph (SSW 3.5 mph) | - | 5SM |
| | KYKM 041753Z 24003KT 5SM BR OVC010 M03/M05 A3019 RMK AO2 SLP240 T10331050 11033 21078 53008 |
| 08:53 PST |  Overcast Fog And Mist | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | W 6 kph (W 3.5 mph) | - | 5SM |
| | KYKM 041653Z 27003KT 5SM BR OVC010 M04/M06 A3018 RMK AO2 SLP235 T10391056 |
| 07:53 PST |  Overcast Fog And Mist | -6°C / 21°F | -7°C / 19°F | 93% | 1022 mb (30.18 in) | Calm | - | 5SM |
| | KYKM 041553Z 00000KT 5SM BR OVC012 M06/M07 A3017 RMK AO2 SLP234 T10561067 |
| 06:53 PST |  Overcast Fog And Mist | -6°C / 21°F | -7°C / 19°F | 93% | 1022 mb (30.18 in) | Calm | - | 6SM |
| | KYKM 041453Z 00000KT 6SM BR BKN010 OVC014 M06/M07 A3017 RMK AO2 CIG 009V013 SLP232 T10561067 56009 $ |
| 05:53 PST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1022 mb (30.18 in) | NW 6 kph (NW 3.5 mph) | - | 7SM |
| | KYKM 041353Z 30003KT 7SM OVC010 M04/M06 A3017 RMK AO2 SLP233 T10441061 |
| 05:35 PST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1022 mb (30.18 in) | W 7 kph (W 4.6 mph) | - | 8SM |
| | KYKM 041335Z AUTO 28004KT 8SM OVC010 M05/M06 A3017 RMK AO2 |
| 05:10 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1022 mb (30.18 in) | W 9 kph (W 5.8 mph) | - | 8SM |
| | KYKM 041310Z AUTO 28005KT 8SM OVC008 M06/M07 A3018 RMK AO2 |
| 04:53 PST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1022 mb (30.18 in) | SSW 9 kph (SSW 5.8 mph) | - | 8SM |
| | KYKM 041253Z AUTO 25005KT 8SM BKN010 OVC014 M06/M07 A3018 RMK AO2 SLP234 T10561072 |
| 03:53 PST |  Mostly Cloudy | -8°C / 18°F | -9°C / 16°F | 93% | 1023 mb (30.21 in) | W 9 kph (W 5.8 mph) | - | 7SM |
| | KYKM 041153Z AUTO 27005KT 7SM BKN012 M08/M09 A3020 RMK AO2 SLP241 T10781094 11050 21094 56008 |
| 02:53 PST |  Mostly Cloudy | -9°C / 16°F | -11°C / 12°F | 86% | 1023 mb (30.21 in) | Calm | - | 7SM |
| | KYKM 041053Z AUTO 00000KT 7SM BKN010 M09/M11 A3020 RMK AO2 SLP242 T10941106 |
| 01:53 PST |  Partly Cloudy Fog And Mist | -9°C / 16°F | -10°C / 14°F | 93% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KYKM 040953Z AUTO 00000KT 6SM BR FEW015 M09/M10 A3022 RMK AO2 SLP250 T10891100 |
| 00:53 PST |  Clear Fog And Mist | -8°C / 18°F | -9°C / 16°F | 93% | 1024 mb (30.24 in) | Calm | - | 6SM |
| | KYKM 040853Z AUTO 00000KT 6SM BR CLR M08/M09 A3025 RMK AO2 SLP258 T10831094 58016 |