| 07:09 MST |  Overcast Light Snow | -13°C / 9°F | -16°C / 3°F | 78% | 1022 mb (30.18 in) | NW 19 kph (NW 11.5 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 231409Z 31010KT 2SM -SN SCT028 BKN036 OVC065 M13/M16 A3017 RMK AO2 P0000 |
| 06:55 MST |  Overcast Light Snow | -13°C / 9°F | -16°C / 3°F | 78% | 1022 mb (30.18 in) | NW 17 kph (NW 10.4 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 231355Z 32009KT 2SM -SN FEW016 BKN028 OVC033 M13/M16 A3017 RMK AO2 P0000 |
| 06:53 MST |  Overcast Light Snow | -13°C / 9°F | -15°C / 5°F | 85% | 1022 mb (30.18 in) | NW 19 kph (NW 11.5 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 231353Z 31010KT 2SM -SN BR FEW016 OVC030 M13/M15 A3017 RMK AO2 SLP295 P0000 T11281150 |
| 06:20 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1021 mb (30.15 in) | NNW 20 kph (NNW 12.7 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 231320Z 33011KT 2SM -SN OVC031 M12/M15 A3015 RMK AO2 P0000 |
| 06:04 MST |  Overcast Light Snow | -12°C / 10°F | -16°C / 3°F | 72% | 1021 mb (30.15 in) | NNW 20 kph (NNW 12.7 mph) | 0.00 mm (0.00 in) | 7SM |
| | KHLN 231304Z 33011KT 7SM -SN BKN031 OVC055 M12/M16 A3014 RMK AO2 P0000 |
| 05:53 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1021 mb (30.15 in) | NW 20 kph (NW 12.7 mph) | 0.00 mm (0.00 in) | 4SM |
| | KHLN 231253Z 32011KT 4SM -SN BKN029 OVC055 M12/M14 A3014 RMK AO2 SLP281 P0000 T11171144 |
| 05:51 MST |  Overcast Light Snow | -12°C / 10°F | -14°C / 7°F | 85% | 1020 mb (30.12 in) | NW 15 kph (NW 9.2 mph) | 0.00 mm (0.00 in) | 4SM |
| | KHLN 231251Z AUTO 32008KT 4SM -SN BKN029 OVC055 M12/M14 A3013 RMK AO2 P0000 |
| 05:44 MST |  Overcast Light Snow | -12°C / 10°F | -15°C / 5°F | 79% | 1020 mb (30.12 in) | NNW 17 kph (NNW 10.4 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KHLN 231244Z AUTO 33009KT 2 1/2SM -SN FEW022 BKN027 OVC055 M12/M15 A3012 RMK AO2 P0000 |
| 05:13 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1019 mb (30.09 in) | NNW 22 kph (NNW 13.8 mph) | 0.00 mm (0.00 in) | 4SM |
| | KHLN 231213Z AUTO 34012KT 4SM -SN FEW022 BKN027 OVC055 M11/M14 A3010 RMK AO2 P0000 |
| 05:06 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1019 mb (30.09 in) | N 22 kph (N 13.8 mph) | 0.00 mm (0.00 in) | 3SM |
| | KHLN 231206Z AUTO 35012KT 3SM -SN FEW022 SCT027 OVC055 M11/M14 A3010 RMK AO2 P0000 |
| 04:53 MST |  Overcast Light Snow | -11°C / 12°F | -14°C / 7°F | 79% | 1019 mb (30.09 in) | N 22 kph (N 13.8 mph) | 0.00 mm (0.00 in) | 6SM |
| | KHLN 231153Z AUTO 35012KT 6SM -SN BKN026 OVC055 M11/M14 A3009 RMK AO2 SNE34B52 SLP263 P0000 60001 70001 T11061144 11056 21106 51028 |
| 04:40 MST |  Overcast | -11°C / 12°F | -14°C / 7°F | 79% | 1019 mb (30.09 in) | NNW 24 kph (NNW 15 mph) | 0.00 mm (0.00 in) | 8SM |
| | KHLN 231140Z AUTO 34013KT 8SM BKN026 BKN041 OVC060 M11/M14 A3009 RMK AO2 SNE34 P0000 |
| 04:10 MST |  Overcast Light Snow | -10°C / 14°F | -13°C / 9°F | 79% | 1019 mb (30.09 in) | NW 17 kph (NW 10.4 mph) | 0.00 mm (0.00 in) | 3SM |
| | KHLN 231110Z AUTO 32009KT 3SM -SN SCT024 OVC042 M10/M13 A3008 RMK AO2 P0000 |
| 04:04 MST |  Overcast Light Snow | -10°C / 14°F | -13°C / 9°F | 79% | 1019 mb (30.09 in) | NW 13 kph (NW 8.1 mph) | 0.00 mm (0.00 in) | 2SM |
| | KHLN 231104Z AUTO 31007KT 2SM -SN BKN024 OVC044 M10/M13 A3008 RMK AO2 P0000 |
| 03:53 MST |  Overcast Light Snow | -9°C / 16°F | -13°C / 9°F | 73% | 1019 mb (30.09 in) | NW 11 kph (NW 6.9 mph) | 0.00 mm (0.00 in) | 5SM |
| | KHLN 231053Z AUTO 31006KT 5SM -SN OVC024 M09/M13 A3008 RMK AO2 SNB46 SLP254 P0000 T10941133 |
| 02:53 MST |  Overcast Hazy | -7°C / 19°F | -11°C / 12°F | 73% | 1017 mb (30.03 in) | N 20 kph (N 12.7 mph) | 0.00 mm (0.00 in) | 6SM |
| | KHLN 230953Z AUTO 35011KT 6SM HZ OVC018 M07/M11 A3004 RMK AO2 SNB11E50 SLP237 P0000 T10721106 |
| 01:53 MST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1016 mb (30 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KHLN 230853Z AUTO 29004KT 10SM BKN020 OVC026 M06/M08 A3000 RMK AO2 SLP219 60001 T10561083 53015 |
| 00:53 MST |  Overcast | -6°C / 21°F | -8°C / 18°F | 86% | 1015 mb (29.97 in) | SSW 9 kph (SSW 5.8 mph) | 0.00 mm (0.00 in) | 8SM |
| | KHLN 230753Z AUTO 25005KT 8SM BKN020 OVC038 M06/M08 A2997 RMK AO2 SNE48 SLP212 P0000 T10611078 |
| 00:20 MST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1015 mb (29.97 in) | NW 7 kph (NW 4.6 mph) | 0.00 mm (0.00 in) | 3SM |
| | KHLN 230720Z AUTO 31004KT 3SM -SN BR SCT023 BKN040 OVC070 M06/M08 A2996 RMK AO2 P0000 |
| 00:11 MST |  Overcast Light Snow | -6°C / 21°F | -8°C / 18°F | 86% | 1015 mb (29.97 in) | NW 7 kph (NW 4.6 mph) | 0.00 mm (0.00 in) | 2 1/2SM |
| | KHLN 230711Z AUTO 31004KT 2 1/2SM -SN BR BKN019 BKN038 OVC065 M06/M08 A2996 RMK AO2 P0000 |