| 17:53 PST |  Overcast Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1017 mb (30.03 in) | S 6 kph (S 3.5 mph) | 0.51 mm (0.02 in) | 2 1/2SM |
| | KSHN 260153Z AUTO 17003KT 2 1/2SM -RA BR OVC024 10/09 A3004 RMK AO2 RAB32 SLP177 P0002 T01000094 |
| 17:41 PST |  Overcast Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1017 mb (30.03 in) | S 7 kph (S 4.6 mph) | 0.00 mm (0.00 in) | 5SM |
| | KSHN 260141Z AUTO 17004KT 5SM -RA BR BKN024 OVC039 10/09 A3004 RMK AO2 RAB32 P0000 |
| 16:53 PST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | SW 6 kph (SW 3.5 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSHN 260053Z AUTO 21003KT 10SM FEW036 BKN065 OVC075 09/09 A3005 RMK AO2 RAB08E39 SLP179 P0000 T00940094 |
| 15:53 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | SSW 7 kph (SSW 4.6 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSHN 252353Z AUTO 26004KT 10SM BKN036 OVC046 10/09 A3007 RMK AO2 RAB05E14B37E49 SLP187 P0000 60001 T01000089 10111 20072 58001 |
| 15:09 PST |  Overcast Light Rain | 11°C / 52°F | 9°C / 48°F | 88% | 1018 mb (30.06 in) | WNW 7 kph (WNW 4.6 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSHN 252309Z AUTO 29004KT 10SM -RA SCT028 OVC036 11/09 A3007 RMK AO2 RAB05 P0000 |
| 14:53 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1019 mb (30.09 in) | W 7 kph (W 4.6 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSHN 252253Z AUTO 27004KT 10SM BKN028 OVC040 10/09 A3008 RMK AO2 RAB2154E44 SLP188 P0001 T01000089 |
| 14:49 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1019 mb (30.09 in) | SSW 9 kph (SSW 5.8 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSHN 252249Z AUTO 25005KT 10SM BKN028 OVC042 10/09 A3008 RMK AO2 RAB2154E44 P0001 |
| 13:53 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSHN 252153Z AUTO 00000KT 10SM FEW030 BKN040 OVC055 11/09 A3007 RMK AO2 SLP186 T01060094 |
| 12:53 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1019 mb (30.09 in) | Calm | 0.00 mm (0.00 in) | 10SM |
| | KSHN 252053Z AUTO 00000KT 10SM OVC032 11/09 A3009 RMK AO2 RAB35E49 SLP193 P0000 60000 T01060089 58014 |
| 11:53 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSHN 251953Z AUTO 00000KT 10SM OVC034 11/09 A3013 RMK AO2 SLP205 T01060094 |
| 10:53 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 251853Z AUTO 00000KT 10SM OVC036 09/08 A3014 RMK AO2 SLP208 T00940083 |
| 09:53 PST |  Mostly Cloudy | 7°C / 45°F | 7°C / 45°F | 100% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSHN 251753Z AUTO 00000KT 10SM FEW001 BKN042 BKN070 07/07 A3013 RMK AO2 SLP208 T00720072 10072 20039 58003 |
| 09:28 PST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 1021 mb (30.15 in) | Calm | - | 6SM |
| | KSHN 251728Z AUTO 00000KT 6SM BR OVC001 06/06 A3015 RMK AO2 |
| 09:21 PST |  Overcast Fog And Mist | 6°C / 43°F | 6°C / 43°F | 100% | 1021 mb (30.15 in) | Calm | - | 2SM |
| | KSHN 251721Z AUTO 00000KT 2SM BR OVC001 06/06 A3015 RMK AO2 VIS 3/4V5 |
| 08:53 PST |  Overcast Fog | 5°C / 41°F | 5°C / 41°F | 100% | 1021 mb (30.15 in) | Calm | - | 1/2SM |
| | KSHN 251653Z AUTO 00000KT 1/2SM FG BKN001 OVC047 05/05 A3015 RMK AO2 SLP214 T00500050 |
| 07:53 PST |  Overcast Fog | 4°C / 39°F | 4°C / 39°F | 100% | 1021 mb (30.15 in) | Calm | - | 1/4SM |
| | KSHN 251553Z AUTO 00000KT 1/4SM FG BKN001 OVC007 04/04 A3014 RMK AO2 SLP211 T00440039 |
| 07:46 PST |  Overcast Fog | 4°C / 39°F | 4°C / 39°F | 100% | 1021 mb (30.15 in) | Calm | - | 1/4SM |
| | KSHN 251546Z AUTO 00000KT 1/4SM FG BKN001 OVC007 04/04 A3014 RMK AO2 |
| 07:20 PST |  Mostly Cloudy Fog And Mist | 5°C / 41°F | 4°C / 39°F | 93% | 1021 mb (30.15 in) | Calm | - | 3/4SM |
| | KSHN 251520Z AUTO 00000KT 3/4SM BR SCT001 BKN007 05/04 A3015 RMK AO2 |
| 07:12 PST |  Partly Cloudy Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1021 mb (30.15 in) | Calm | - | 1 1/2SM |
| | KSHN 251512Z AUTO 00000KT 1 1/2SM BR FEW001 SCT046 04/04 A3015 RMK AO2 |
| 07:03 PST |  Partly Cloudy Fog And Mist | 5°C / 41°F | 4°C / 39°F | 93% | 1021 mb (30.15 in) | Calm | - | 2 1/2SM |
| | KSHN 251503Z AUTO 00000KT 2 1/2SM BR SCT046 05/04 A3014 RMK AO2 |
| 06:53 PST |  Mostly Cloudy Fog And Mist | 6°C / 43°F | 5°C / 41°F | 93% | 1021 mb (30.15 in) | Calm | - | 6SM |
| | KSHN 251453Z AUTO 00000KT 6SM BR BKN046 06/05 A3015 RMK AO2 SLP211 T00560050 58012 |
| 05:53 PST |  Overcast | 5°C / 41°F | 5°C / 41°F | 100% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 251353Z AUTO 00000KT 10SM FEW028 OVC048 05/05 A3016 RMK AO2 SLP217 T00500050 |
| 05:46 PST |  Overcast | 6°C / 43°F | 5°C / 41°F | 93% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSHN 251346Z AUTO 00000KT 10SM SCT028 OVC048 06/05 A3016 RMK AO2 |
| 04:53 PST |  Overcast | 5°C / 41°F | 5°C / 41°F | 100% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSHN 251253Z AUTO 00000KT 10SM OVC028 05/05 A3018 RMK AO2 SLP223 T00500050 |
| 04:42 PST |  Mostly Cloudy | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSHN 251242Z AUTO 00000KT 10SM FEW001 BKN028 04/04 A3017 RMK AO2 |
| 04:27 PST |  Mostly Cloudy Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 4SM |
| | KSHN 251227Z AUTO 00000KT 4SM BR FEW001 BKN033 BKN045 04/04 A3017 RMK AO2 |
| 04:16 PST |  Partly Cloudy Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 4SM |
| | KSHN 251216Z AUTO 00000KT 4SM BR SCT028 SCT035 SCT045 04/04 A3017 RMK AO2 |
| 04:06 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 5SM |
| | KSHN 251206Z AUTO 00000KT 5SM BR BKN028 BKN035 OVC045 04/04 A3017 RMK AO2 |
| 03:53 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 2 1/2SM |
| | KSHN 251153Z AUTO 00000KT 2 1/2SM BR FEW001 OVC028 04/04 A3018 RMK AO2 SLP224 70023 T00440039 10072 20039 58005 |
| 03:43 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 2SM |
| | KSHN 251143Z AUTO 00000KT 2SM BR SCT001 OVC028 04/04 A3018 RMK AO2 VIS 1 1/4V4 |
| 03:41 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 1 3/4SM |
| | KSHN 251141Z AUTO 00000KT 1 3/4SM BR BKN001 OVC030 04/04 A3018 RMK AO2 |
| 03:34 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 3SM |
| | KSHN 251134Z AUTO 00000KT 3SM BR BKN001 OVC032 04/04 A3018 RMK AO2 |
| 03:08 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 2SM |
| | KSHN 251108Z AUTO 00000KT 2SM BR BKN001 OVC034 04/04 A3019 RMK AO2 |
| 02:58 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 2 1/2SM |
| | KSHN 251058Z AUTO 00000KT 2 1/2SM BR SCT001 BKN034 OVC055 04/04 A3019 RMK AO2 |
| 02:53 PST |  Overcast Fog And Mist | 4°C / 39°F | 4°C / 39°F | 100% | 1022 mb (30.18 in) | Calm | - | 1 1/2SM |
| | KSHN 251053Z AUTO 00000KT 1 1/2SM BR SCT001 BKN007 OVC055 04/04 A3019 RMK AO2 SLP227 T00440044 |
| 02:36 PST |  Overcast Fog | 4°C / 39°F | 4°C / 39°F | 100% | 1023 mb (30.21 in) | Calm | - | 1/2SM |
| | KSHN 251036Z AUTO 00000KT 1/2SM FG SCT001 BKN007 OVC055 04/04 A3020 RMK AO2 |
| 01:53 PST |  Overcast Fog | 5°C / 41°F | 5°C / 41°F | 100% | 1023 mb (30.21 in) | Calm | - | 1/4SM |
| | KSHN 250953Z AUTO 00000KT 1/4SM FG BKN001 OVC007 05/05 A3020 RMK AO2 SLP230 T00500050 |
| 00:53 PST |  Obscured Fog | 5°C / 41°F | 4°C / 39°F | 93% | 1023 mb (30.21 in) | Calm | - | 1/4SM |
| | KSHN 250853Z AUTO 00000KT 1/4SM FG VV001 05/04 A3020 RMK AO2 SLP229 T00500044 58004 |
| 00:07 PST |  Overcast Fog And Mist | 6°C / 43°F | 5°C / 41°F | 93% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KSHN 250807Z AUTO 00000KT 3/4SM BR BKN001 BKN007 OVC050 06/05 A3020 RMK AO2 |
| 00:01 PST |  Overcast Fog And Mist | 5°C / 41°F | 5°C / 41°F | 100% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KSHN 250801Z AUTO 00000KT 3/4SM BR SCT001 SCT007 OVC050 05/05 A3020 RMK AO2 |