| 16:53 PST |  Overcast | 3°C / 37°F | 1°C / 34°F | 87% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSHN 230053Z AUTO 00000KT 10SM OVC035 03/01 A3025 RMK AO2 SLP249 T00280006 |
| 15:53 PST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1024 mb (30.24 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KSHN 222353Z AUTO 18003KT 10SM OVC037 04/01 A3023 RMK AO2 SLP240 T00440011 10056 20033 53018 |
| 14:53 PST |  Overcast | 5°C / 41°F | 1°C / 34°F | 76% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSHN 222253Z AUTO 00000KT 10SM OVC035 05/01 A3020 RMK AO2 SLP231 T00500006 |
| 13:53 PST |  Overcast | 5°C / 41°F | 0°C / 32°F | 70% | 1022 mb (30.18 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KSHN 222153Z AUTO 10003KT 10SM OVC031 05/00 A3018 RMK AO2 SLP226 T00500000 |
| 12:53 PST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1022 mb (30.18 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KSHN 222053Z AUTO VRB03KT 10SM BKN018 OVC023 04/01 A3017 RMK AO2 SLP222 T00440011 51012 |
| 12:00 PST |  Mostly Cloudy | 5°C / 41°F | 1°C / 34°F | 76% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 222000Z AUTO 00000KT 10SM BKN022 05/01 A3016 RMK AO2 |
| 11:53 PST |  Partly Cloudy | 5°C / 41°F | 1°C / 34°F | 76% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 221953Z AUTO 00000KT 10SM SCT022 05/01 A3016 RMK AO2 SLP217 T00500006 |
| 11:48 PST |  Partly Cloudy | 4°C / 39°F | 1°C / 34°F | 81% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 221948Z AUTO 00000KT 10SM SCT020 04/01 A3016 RMK AO2 |
| 10:53 PST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1021 mb (30.15 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSHN 221853Z AUTO 16004KT 10SM OVC028 04/02 A3014 RMK AO2 SLP210 T00390017 |
| 10:20 PST |  Overcast | 4°C / 39°F | 1°C / 34°F | 81% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSHN 221820Z AUTO 00000KT 10SM BKN023 OVC031 04/01 A3013 RMK AO2 |
| 09:53 PST |  Mostly Cloudy | 3°C / 37°F | 2°C / 36°F | 93% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSHN 221753Z AUTO 00000KT 10SM FEW018 BKN035 03/02 A3012 RMK AO2 SLP204 T00330017 10033 20000 53025 |
| 08:53 PST |  Partly Cloudy | 2°C / 36°F | 1°C / 34°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSHN 221653Z AUTO 00000KT 10SM SCT022 02/01 A3009 RMK AO2 SLP195 T00170011 FZRANO |
| 08:12 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSHN 221612Z AUTO 00000KT 10SM BKN024 01/00 A3006 RMK AO2 FZRANO |
| 07:53 PST |  Partly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSHN 221553Z AUTO 00000KT 10SM FEW012 SCT024 01/00 A3005 RMK AO2 SLP180 T00060000 FZRANO |
| 07:48 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSHN 221548Z AUTO 00000KT 10SM SCT012 BKN024 01/00 A3004 RMK AO2 FZRANO |
| 06:53 PST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1016 mb (30 in) | Calm | - | 10SM |
| | KSHN 221453Z AUTO 00000KT 10SM BKN014 OVC020 01/01 A3001 RMK AO2 SLP169 T00060006 53033 FZRANO |
| 05:53 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KSHN 221353Z AUTO 00000KT 10SM BKN020 01/00 A2997 RMK AO2 SLP155 T00060000 FZRANO |
| 04:53 PST |  Mostly Cloudy | 1°C / 34°F | -1°C / 30°F | 87% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KSHN 221253Z AUTO 00000KT 10SM BKN018 BKN022 01/M01 A2994 RMK AO2 SLP143 T00061006 FZRANO |
| 03:53 PST |  Overcast | 2°C / 36°F | 0°C / 32°F | 87% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSHN 221153Z AUTO 00000KT 10SM BKN020 OVC028 02/00 A2992 RMK AO2 SLP135 60000 70011 T00170000 10022 20011 53031 FZRANO |
| 03:32 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSHN 221132Z AUTO 00000KT 10SM SCT012 BKN022 OVC029 02/01 A2990 RMK AO2 FZRANO |
| 03:05 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1013 mb (29.91 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KSHN 221105Z AUTO 30005KT 10SM SCT008 OVC014 02/01 A2990 RMK AO2 FZRANO |
| 02:53 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1012 mb (29.88 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KSHN 221053Z AUTO 27005KT 10SM BKN008 BKN016 OVC070 02/01 A2989 RMK AO2 CIG 005V011 SLP126 T00170006 FZRANO |
| 02:25 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1012 mb (29.88 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSHN 221025Z AUTO 30006KT 10SM BKN006 BKN012 OVC070 02/01 A2987 RMK AO2 FZRANO |
| 02:13 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1011 mb (29.85 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KSHN 221013Z AUTO 32004KT 10SM SCT008 BKN012 OVC070 02/01 A2986 RMK AO2 FZRANO |
| 01:53 PST |  Mostly Cloudy | 1°C / 34°F | 1°C / 34°F | 100% | 1010 mb (29.83 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KSHN 220953Z AUTO 26006KT 10SM BKN070 01/01 A2984 RMK AO2 SLP109 T00110006 FZRANO |
| 01:03 PST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1010 mb (29.83 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KSHN 220903Z AUTO 24010KT 10SM SCT007 BKN075 OVC090 01/01 A2982 RMK AO2 FZRANO |
| 00:53 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KSHN 220853Z AUTO 25009KT 10SM BKN007 BKN070 BKN090 01/00 A2982 RMK AO2 SLP103 60000 T00110000 51005 FZRANO |
| 00:50 PST |  Mostly Cloudy | 1°C / 34°F | 0°C / 32°F | 93% | 1010 mb (29.83 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KSHN 220850Z AUTO 25009KT 10SM BKN007 BKN070 BKN090 01/00 A2982 RMK AO2 FZRANO |