| 12:53 PST |  Overcast | 0°C / 32°F | -2°C / 28°F | 87% | 1016 mb (30 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KDEW 222053Z AUTO 15005KT 10SM FEW011 OVC022 00/M02 A2999 RMK AO2 SLP174 T00001017 51016 |
| 11:53 PST |  Overcast | 0°C / 32°F | -2°C / 28°F | 87% | 1015 mb (29.97 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KDEW 221953Z AUTO 15003KT 10SM OVC020 00/M02 A2998 RMK AO2 SLP170 T00001022 |
| 10:53 PST |  Overcast | 0°C / 32°F | -2°C / 28°F | 87% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KDEW 221853Z AUTO 00000KT 10SM OVC018 00/M02 A2996 RMK AO2 SLP164 T00001022 |
| 09:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KDEW 221753Z AUTO 00000KT 10SM OVC018 M01/M02 A2994 RMK AO2 SLP156 T10061022 11006 21017 51017 |
| 08:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KDEW 221653Z AUTO 00000KT 10SM OVC016 M01/M02 A2992 RMK AO2 SLP147 T10111017 |
| 07:53 PST |  Overcast | -2°C / 28°F | -3°C / 27°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KDEW 221553Z AUTO 00000KT 10SM BKN014 OVC085 M02/M03 A2989 RMK AO2 SLP138 T10171028 |
| 07:31 PST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1012 mb (29.88 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KDEW 221531Z AUTO 16003KT 10SM SCT016 OVC090 M02/M02 A2988 RMK AO2 |
| 06:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1012 mb (29.88 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KDEW 221453Z AUTO 15004KT 10SM OVC016 M01/M02 A2987 RMK AO2 SLP130 T10111022 53022 |
| 05:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1011 mb (29.85 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KDEW 221353Z AUTO 15006KT 10SM OVC018 M01/M02 A2985 RMK AO2 SLP123 T10111022 |
| 04:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1010 mb (29.83 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KDEW 221253Z AUTO 15006KT 10SM OVC018 M01/M02 A2982 RMK AO2 SLP113 T10061017 |
| 03:53 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1009 mb (29.8 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KDEW 221153Z AUTO 14006KT 10SM OVC018 M01/M02 A2980 RMK AO2 SLP107 60004 70060 T10061017 10028 21006 51021 |
| 02:53 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1008 mb (29.77 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KDEW 221053Z AUTO 15006KT 10SM BKN018 M01/M02 A2978 RMK AO2 SLP100 T10061017 |
| 02:22 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1008 mb (29.77 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KDEW 221022Z AUTO 18007KT 10SM BKN018 OVC100 M01/M02 A2977 RMK AO2 |
| 01:53 PST |  Mostly Cloudy | 0°C / 32°F | -2°C / 28°F | 87% | 1008 mb (29.77 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KDEW 220953Z AUTO 17006KT 10SM FEW016 BKN100 00/M02 A2976 RMK AO2 SLP090 T00001017 |
| 00:53 PST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1007 mb (29.74 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KDEW 220853Z AUTO 17003KT 10SM SCT016 OVC024 01/M01 A2973 RMK AO2 SLP082 60004 T00061006 51014 |
| 00:50 PST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1007 mb (29.74 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KDEW 220850Z AUTO 16005KT 10SM SCT016 OVC024 01/M01 A2973 RMK AO2 |
| 00:28 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1006 mb (29.71 in) | SE 11 kph (SE 6.9 mph) | - | 9SM |
| | KDEW 220828Z AUTO 14006KT 9SM FEW006 BKN012 OVC022 01/00 A2972 RMK AO2 |
| 00:09 PST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1006 mb (29.71 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KDEW 220809Z AUTO 16008KT 10SM OVC006 01/00 A2971 RMK AO2 CIG 003V010 |