| 10:54 EST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1025 mb (30.27 in) | Calm | - | 8SM |
| | KAVL 231554Z 00000KT 8SM CLR 00/M02 A3026 RMK AO2 SLP259 T00001017 |
| 09:54 EST |  Clear Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 6SM |
| | KAVL 231454Z 00000KT 6SM BR CLR M02/M02 A3025 RMK AO2 SLP259 T10171022 51011 |
| 08:54 EST |  Clear Fog And Mist | -3°C / 27°F | -3°C / 27°F | 100% | 1024 mb (30.24 in) | Calm | - | 5SM |
| | KAVL 231354Z 00000KT 5SM BR CLR M03/M03 A3025 RMK AO2 SLP258 T10331033 |
| 07:54 EST |  Partly Cloudy | -4°C / 25°F | -6°C / 21°F | 86% | 1024 mb (30.24 in) | Calm | - | 7SM |
| | KAVL 231254Z 00000KT 7SM FEW003 M04/M06 A3023 RMK AO2 SLP252 T10441056 |
| 06:54 EST |  Clear Fog And Mist | -4°C / 25°F | -5°C / 23°F | 93% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KAVL 231154Z 00000KT 6SM BR CLR M04/M05 A3022 RMK AO2 SLP247 T10441050 11022 21044 52005 |
| 05:54 EST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 7SM |
| | KAVL 231054Z AUTO 00000KT 7SM CLR M03/M04 A3021 RMK AO2 SLP240 T10281039 |
| 04:54 EST |  Clear Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KAVL 230954Z AUTO 00000KT 5SM BR CLR M04/M04 A3021 RMK AO2 SLP239 T10391044 |
| 04:43 EST |  Clear Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1023 mb (30.21 in) | Calm | - | 4SM |
| | KAVL 230943Z AUTO 00000KT 4SM BR CLR M04/M04 A3020 RMK AO2 |
| 04:32 EST |  Partly Cloudy Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1023 mb (30.21 in) | Calm | - | 2SM |
| | KAVL 230932Z AUTO 00000KT 2SM BR SCT002 M04/M04 A3020 RMK AO2 |
| 04:28 EST |  Partly Cloudy Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1023 mb (30.21 in) | Calm | - | 1 1/4SM |
| | KAVL 230928Z AUTO 00000KT 1 1/4SM BR SCT002 M04/M04 A3020 RMK AO2 |
| 04:25 EST |  Obscured Fog And Mist | -4°C / 25°F | -4°C / 25°F | 100% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KAVL 230925Z AUTO 00000KT 3/4SM BR VV002 M04/M04 A3020 RMK AO2 |
| 03:54 EST |  Obscured Fog | -3°C / 27°F | -3°C / 27°F | 100% | 1023 mb (30.21 in) | Calm | - | 1/4SM |
| | KAVL 230854Z AUTO 00000KT 1/4SM FZFG VV002 M03/M03 A3020 RMK AO2 SLP234 T10281033 58002 |
| 03:23 EST |  Obscured Fog | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 1/4SM |
| | KAVL 230823Z AUTO 33003KT 1/4SM FZFG VV003 M03/M04 A3021 RMK AO2 |
| 03:11 EST |  Obscured Fog | -3°C / 27°F | -3°C / 27°F | 100% | 1023 mb (30.21 in) | Calm | - | 1/2SM |
| | KAVL 230811Z AUTO 00000KT 1/2SM FZFG VV001 M03/M03 A3021 RMK AO2 |
| 03:04 EST |  Obscured Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 1SM |
| | KAVL 230804Z AUTO 00000KT 1SM BR VV002 M03/M04 A3021 RMK AO2 |
| 03:02 EST |  Partly Cloudy Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 1 3/4SM |
| | KAVL 230802Z AUTO 00000KT 1 3/4SM BR FEW002 M03/M04 A3021 RMK AO2 |
| 02:54 EST |  Clear Fog And Mist | -3°C / 27°F | -5°C / 23°F | 86% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KAVL 230754Z AUTO 00000KT 6SM BR CLR M03/M05 A3021 RMK AO2 SLP239 T10331050 |
| 01:54 EST |  Clear Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 4SM |
| | KAVL 230654Z AUTO 00000KT 4SM BR CLR M03/M04 A3021 RMK AO2 SLP236 T10281039 |
| 00:54 EST |  Clear Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 6SM |
| | KAVL 230554Z AUTO 00000KT 6SM BR CLR M03/M04 A3021 RMK AO2 SLP238 T10281039 10028 21028 56004 |