| 09:12 MST |  Overcast Light Snow | N/A | N/A | N/A | 1007 mb (29.74 in) | Calm | - | 1 3/4SM |
| | K5SM 231612Z AUTO 00000KT 1 3/4SM -SN OVC002 A2973 RMK AO2 |
| 09:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1007 mb (29.74 in) | Calm | - | 1 3/4SM |
| | K5SM 231611Z AUTO 00000KT 1 3/4SM -SN OVC002 A2973 RMK AO2 |
| 08:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1007 mb (29.74 in) | N 6 kph (N 3.5 mph) | - | 1SM |
| | K5SM 231551Z AUTO 01003KT 1SM -SN OVC002 A2973 RMK AO2 |
| 08:31 MST |  Overcast Fog And Mist | N/A | N/A | N/A | 1006 mb (29.71 in) | NE 7 kph (NE 4.6 mph) | - | 1SM |
| | K5SM 231531Z AUTO 03004KT 1SM BR OVC002 A2972 RMK AO2 VIS 1/2V5 |
| 08:11 MST |  Overcast Fog And Mist | N/A | N/A | N/A | 1006 mb (29.71 in) | NNE 7 kph (NNE 4.6 mph) | - | 3/4SM |
| | K5SM 231511Z AUTO 02004KT 3/4SM BR OVC002 A2971 RMK AO2 VIS 1/4V3 |
| 07:09 MST |  Overcast Light Snow | N/A | N/A | N/A | 1006 mb (29.71 in) | N 6 kph (N 3.5 mph) | - | 2SM |
| | K5SM 231409Z AUTO 01003KT 2SM -SN OVC002 A2970 RMK AO2 VIS 1V5 |
| 06:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1005 mb (29.68 in) | Calm | - | 1 3/4SM |
| | K5SM 231351Z AUTO 00000KT 1 3/4SM -SN OVC002 A2969 RMK AO2 LTG DSNT E |
| 06:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1005 mb (29.68 in) | Calm | - | 4SM |
| | K5SM 231331Z AUTO 00000KT 4SM -SN OVC002 A2968 RMK AO2 |
| 06:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1005 mb (29.68 in) | Calm | - | 2 1/2SM |
| | K5SM 231311Z AUTO 00000KT 2 1/2SM -SN OVC002 A2968 RMK AO2 |
| 05:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1005 mb (29.68 in) | N 6 kph (N 3.5 mph) | - | 1/4SM |
| | K5SM 231251Z AUTO 36003KT 1/4SM -SN OVC002 A2967 RMK AO2 |
| 05:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1005 mb (29.68 in) | Calm | - | 1/2SM |
| | K5SM 231231Z AUTO 00000KT 1/2SM -SN OVC002 A2967 RMK AO2 |
| 05:11 MST |  Overcast Fog | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 1/4SM |
| | K5SM 231211Z AUTO 00000KT 1/4SM FG OVC002 A2966 RMK AO2 |
| 04:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 3/4SM |
| | K5SM 231151Z AUTO 00000KT 3/4SM -SN OVC002 A2966 RMK AO2 |
| 04:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 3/4SM |
| | K5SM 231131Z AUTO 00000KT 3/4SM -SN OVC002 A2966 RMK AO2 |
| 04:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 1/2SM |
| | K5SM 231111Z AUTO 32003KT 1/2SM -SN OVC002 A2966 RMK AO2 |
| 03:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 1SM |
| | K5SM 231051Z AUTO 00000KT 1SM -SN OVC002 A2966 RMK AO2 |
| 03:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 1 1/4SM |
| | K5SM 231031Z AUTO 00000KT 1 1/4SM -SN OVC002 A2966 RMK AO2 |
| 03:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NNW 6 kph (NNW 3.5 mph) | - | 1/2SM |
| | K5SM 231011Z AUTO 34003KT 1/2SM -SN OVC002 A2966 RMK AO2 |
| 02:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 3/4SM |
| | K5SM 230951Z AUTO 31003KT 3/4SM -SN OVC002 A2966 RMK AO2 |
| 02:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 7 kph (NW 4.6 mph) | - | 1 1/2SM |
| | K5SM 230931Z AUTO 30004KT 1 1/2SM -SN OVC002 A2966 RMK AO2 |
| 02:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | Calm | - | 1 1/2SM |
| | K5SM 230911Z AUTO 00000KT 1 1/2SM -SN OVC002 A2966 RMK AO2 |
| 01:51 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 1 1/4SM |
| | K5SM 230851Z AUTO 30003KT 1 1/4SM -SN OVC002 A2965 RMK AO2 |
| 01:31 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 7 kph (NW 4.6 mph) | - | 3/4SM |
| | K5SM 230831Z AUTO 30004KT 3/4SM -SN OVC002 A2965 RMK AO2 |
| 01:11 MST |  Overcast Light Snow | N/A | N/A | N/A | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 3/4SM |
| | K5SM 230811Z AUTO 31003KT 3/4SM -SN OVC002 A2965 RMK AO2 |
| 00:51 MST |  Overcast Light Snow | -5°C / 23°F | -6°C / 21°F | 93% | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 1/2SM |
| | K5SM 230751Z AUTO 32003KT 1/2SM -SN OVC002 M05/M06 A2965 RMK AO2 |
| 00:31 MST |  Overcast Light Snow | -5°C / 23°F | -6°C / 21°F | 93% | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 1/4SM |
| | K5SM 230731Z AUTO 32003KT 1/4SM -SN OVC002 M05/M06 A2965 RMK AO2 |
| 00:11 MST |  Overcast Light Snow | -5°C / 23°F | -5°C / 23°F | 100% | 1004 mb (29.65 in) | NW 6 kph (NW 3.5 mph) | - | 1/4SM |
| | K5SM 230711Z AUTO 31003KT 1/4SM -SN OVC002 M05/M05 A2964 RMK AO2 |