| 13:53 MST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1010 mb (29.83 in) | NNW 17 kph (NNW 10.4 mph) | - | 10SM |
| | KCNY 232053Z AUTO 33009KT 10SM CLR M03/M04 A2983 RMK AO2 SLP131 T10281044 55001 |
| 12:53 MST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1010 mb (29.83 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KCNY 231953Z AUTO 34005KT 10SM CLR M03/M04 A2982 RMK AO2 SLP125 T10281039 |
| 11:53 MST |  Partly Cloudy | -4°C / 25°F | -5°C / 23°F | 93% | 1010 mb (29.83 in) | N 7 kph (N 4.6 mph) | - | 8SM |
| | KCNY 231853Z AUTO 36004KT 8SM FEW055 M04/M05 A2982 RMK AO2 SLP128 T10391050 |
| 10:53 MST |  Mostly Cloudy | -4°C / 25°F | -5°C / 23°F | 93% | 1010 mb (29.83 in) | Calm | - | 8SM |
| | KCNY 231753Z AUTO 00000KT 8SM BKN055 M04/M05 A2984 RMK AO2 SLP136 60002 T10391050 11017 21072 52012 |
| 09:53 MST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1010 mb (29.83 in) | Calm | 0.51 mm (0.02 in) | 3SM |
| | KCNY 231653Z AUTO 00000KT 3SM BR SCT002 M02/M04 A2983 RMK AO2 SLP127 P0002 T10221039 |
| 09:43 MST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -4°C / 25°F | 86% | 1010 mb (29.83 in) | Calm | 0.51 mm (0.02 in) | 2SM |
| | KCNY 231643Z AUTO 00000KT 2SM BR FEW002 M02/M04 A2982 RMK AO2 P0002 |
| 09:34 MST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1010 mb (29.83 in) | Calm | 0.51 mm (0.02 in) | 1 3/4SM |
| | KCNY 231634Z AUTO 00000KT 1 3/4SM BR SCT060 SCT100 M02/M03 A2982 RMK AO2 P0002 |
| 09:25 MST |  Mostly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1010 mb (29.83 in) | Calm | 0.51 mm (0.02 in) | 4SM |
| | KCNY 231625Z AUTO 00000KT 4SM BR FEW003 BKN060 BKN100 M02/M03 A2983 RMK AO2 P0002 |
| 09:15 MST |  Overcast Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1010 mb (29.83 in) | Calm | 0.25 mm (0.01 in) | 2SM |
| | KCNY 231615Z AUTO 00000KT 2SM BR FEW003 BKN060 OVC100 M02/M03 A2982 RMK AO2 P0001 |
| 09:03 MST |  Overcast Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1010 mb (29.83 in) | Calm | - | 1/4SM |
| | KCNY 231603Z AUTO 00000KT 1/4SM FZFG FEW003 BKN055 OVC090 M03/M04 A2982 RMK AO2 |
| 08:53 MST |  Overcast Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1010 mb (29.83 in) | Calm | - | 1/4SM |
| | KCNY 231553Z AUTO 00000KT 1/4SM FZFG BKN050 OVC085 M03/M04 A2982 RMK AO2 SLP126 T10331044 |
| 08:08 MST |  Overcast Fog | -4°C / 25°F | -6°C / 21°F | 86% | 1009 mb (29.8 in) | NNW 7 kph (NNW 4.6 mph) | - | 1/4SM |
| | KCNY 231508Z AUTO 34004KT 1/4SM FZFG SCT001 SCT049 OVC065 M04/M06 A2981 RMK AO2 |
| 07:53 MST |  Overcast Fog | -4°C / 25°F | -5°C / 23°F | 93% | 1009 mb (29.8 in) | N 6 kph (N 3.5 mph) | - | 1/4SM |
| | KCNY 231453Z AUTO 35003KT 1/4SM FZFG OVC065 M04/M05 A2980 RMK AO2 SLP125 T10441050 53023 |
| 07:40 MST |  Overcast Fog | -4°C / 25°F | -5°C / 23°F | 93% | 1009 mb (29.8 in) | Calm | - | M1/4SM |
| | KCNY 231440Z AUTO 00000KT M1/4SM FZFG SCT006 OVC060 M04/M05 A2979 RMK AO2 |
| 07:31 MST |  Overcast Fog | -4°C / 25°F | -6°C / 21°F | 86% | 1009 mb (29.8 in) | Calm | - | 1/4SM |
| | KCNY 231431Z AUTO 00000KT 1/4SM FZFG BKN004 OVC060 M04/M06 A2979 RMK AO2 |
| 07:14 MST |  Overcast Fog And Mist | -6°C / 21°F | -6°C / 21°F | 100% | 1008 mb (29.77 in) | NNW 6 kph (NNW 3.5 mph) | - | 1SM |
| | KCNY 231414Z AUTO 33003KT 1SM BR OVC004 M06/M06 A2978 RMK AO2 |
| 07:06 MST |  Overcast Fog And Mist | -6°C / 21°F | -6°C / 21°F | 100% | 1008 mb (29.77 in) | W 6 kph (W 3.5 mph) | - | 2SM |
| | KCNY 231406Z AUTO 28003KT 2SM BR OVC002 M06/M06 A2977 RMK AO2 |
| 06:53 MST |  Obscured Fog | -6°C / 21°F | -7°C / 19°F | 93% | 1008 mb (29.77 in) | SSW 7 kph (SSW 4.6 mph) | - | 1/4SM |
| | KCNY 231353Z AUTO 25004KT 1/4SM FZFG VV001 M06/M07 A2977 RMK AO2 SLP115 T10611067 |
| 05:53 MST |  Obscured Fog | -4°C / 25°F | -5°C / 23°F | 93% | 1007 mb (29.74 in) | N 7 kph (N 4.6 mph) | - | 1/4SM |
| | KCNY 231253Z AUTO 36004KT 1/4SM FZFG VV002 M04/M05 A2973 RMK AO2 SLP101 T10441050 |
| 04:53 MST |  Overcast Fog | -5°C / 23°F | -5°C / 23°F | 100% | 1006 mb (29.71 in) | NNW 7 kph (NNW 4.6 mph) | - | 1/2SM |
| | KCNY 231153Z AUTO 33004KT 1/2SM FZFG BKN003 OVC024 M05/M05 A2972 RMK AO2 SLP098 70003 T10501050 11039 21061 53007 |
| 04:46 MST |  Overcast Fog And Mist | -5°C / 23°F | -6°C / 21°F | 93% | 1006 mb (29.71 in) | NNW 9 kph (NNW 5.8 mph) | - | 1 1/2SM |
| | KCNY 231146Z AUTO 33005KT 1 1/2SM BR BKN003 OVC024 M05/M06 A2972 RMK AO2 |
| 04:42 MST |  Overcast Fog And Mist | -5°C / 23°F | -6°C / 21°F | 93% | 1006 mb (29.71 in) | NW 9 kph (NW 5.8 mph) | - | 5SM |
| | KCNY 231142Z AUTO 32005KT 5SM BR SCT003 OVC024 M05/M06 A2972 RMK AO2 |
| 04:08 MST |  Mostly Cloudy | -5°C / 23°F | -6°C / 21°F | 93% | 1006 mb (29.71 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KCNY 231108Z AUTO 33007KT 10SM BKN026 M05/M06 A2971 RMK AO2 |
| 03:53 MST |  Partly Cloudy | -6°C / 21°F | -7°C / 19°F | 93% | 1006 mb (29.71 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KCNY 231053Z AUTO 34006KT 10SM FEW028 M06/M07 A2971 RMK AO2 SLP096 T10611067 |
| 02:53 MST |  Overcast | -4°C / 25°F | -5°C / 23°F | 93% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KCNY 230953Z AUTO 00000KT 10SM FEW012 SCT017 OVC034 M04/M05 A2970 RMK AO2 SLP088 T10391050 |
| 02:48 MST |  Overcast | -4°C / 25°F | -5°C / 23°F | 93% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KCNY 230948Z AUTO 00000KT 10SM SCT012 SCT017 OVC034 M04/M05 A2970 RMK AO2 |
| 02:23 MST |  Overcast | -4°C / 25°F | -5°C / 23°F | 93% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KCNY 230923Z AUTO 00000KT 10SM OVC010 M04/M05 A2970 RMK AO2 CIG 008V013 |
| 01:53 MST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1006 mb (29.71 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KCNY 230853Z AUTO 02003KT 10SM OVC008 M04/M06 A2970 RMK AO2 SLP090 T10441056 53010 |
| 00:53 MST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1005 mb (29.68 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KCNY 230753Z AUTO 34005KT 10SM OVC008 M04/M06 A2968 RMK AO2 SLP084 T10441056 |