| 12:55 EST |  Overcast | 2°C / 36°F | -1°C / 30°F | 81% | 999 mb (29.5 in) | N 15 kph (N 9.2 mph) | 1.27 mm (0.05 in) | 3SM |
| | KEEN 091755Z AUTO 01008KT 3SM FEW016 BKN024 OVC032 02/M01 A2950 RMK AO1 P0005 60025 10020 21030 57098 TSNO |
| 12:35 EST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1000 mb (29.53 in) | E 6 kph (E 3.5 mph) | 0.76 mm (0.03 in) | 2SM |
| | KEEN 091735Z AUTO 08003G14KT 2SM BKN015 BKN021 OVC110 01/M01 A2952 RMK AO1 P0003 TSNO |
| 12:15 EST |  Overcast | 1°C / 34°F | -1°C / 30°F | 87% | 1001 mb (29.56 in) | E 11 kph (E 6.9 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KEEN 091715Z AUTO 08006KT 3/4SM BKN016 OVC110 01/M01 A2956 RMK AO1 P0001 TSNO |
| 11:55 EST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1003 mb (29.62 in) | NE 11 kph (NE 6.9 mph) | 1.78 mm (0.07 in) | 3/4SM |
| | KEEN 091655Z AUTO 05006KT 3/4SM BKN008 BKN015 OVC110 00/M01 A2961 RMK AO1 P0007 TSNO |
| 11:35 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1004 mb (29.65 in) | NE 9 kph (NE 5.8 mph) | 1.27 mm (0.05 in) | 1/4SM |
| | KEEN 091635Z AUTO 04005KT 1/4SM OVC008 M01/M02 A2966 RMK AO1 P0005 TSNO |
| 11:15 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1005 mb (29.68 in) | NNE 13 kph (NNE 8.1 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KEEN 091615Z AUTO 02007KT 1/2SM OVC008 M01/M02 A2969 RMK AO1 P0002 TSNO |
| 10:55 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1007 mb (29.74 in) | NNE 13 kph (NNE 8.1 mph) | 1.02 mm (0.04 in) | 1/4SM |
| | KEEN 091555Z AUTO 02007KT 1/4SM OVC008 M01/M02 A2973 RMK AO1 P0004 TSNO |
| 10:35 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1007 mb (29.74 in) | NE 11 kph (NE 6.9 mph) | 0.76 mm (0.03 in) | 1/4SM |
| | KEEN 091535Z AUTO 03006KT 1/4SM OVC006 M01/M02 A2975 RMK AO1 P0003 TSNO |
| 10:15 EST |  Overcast | -1°C / 30°F | -1°C / 30°F | 100% | 1008 mb (29.77 in) | N 11 kph (N 6.9 mph) | 0.51 mm (0.02 in) | 1/2SM |
| | KEEN 091515Z AUTO 35006KT 1/2SM OVC006 M01/M01 A2977 RMK AO1 P0002 TSNO |
| 09:55 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1009 mb (29.8 in) | N 7 kph (N 4.6 mph) | 1.02 mm (0.04 in) | 1/4SM |
| | KEEN 091455Z AUTO 36004KT 1/4SM OVC006 M01/M02 A2979 RMK AO1 P0004 60009 57068 |
| 09:35 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1010 mb (29.83 in) | NNE 11 kph (NNE 6.9 mph) | 0.76 mm (0.03 in) | 1/4SM |
| | KEEN 091435Z AUTO 02006KT 1/4SM OVC006 M01/M02 A2982 RMK AO1 P0003 |
| 09:15 EST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1011 mb (29.85 in) | NNE 7 kph (NNE 4.6 mph) | 0.25 mm (0.01 in) | 1/4SM |
| | KEEN 091415Z AUTO 02004KT 1/4SM OVC006 M01/M02 A2986 RMK AO1 P0001 |
| 08:55 EST |  Overcast | -2°C / 28°F | -3°C / 27°F | 93% | 1012 mb (29.88 in) | NW 7 kph (NW 4.6 mph) | 1.27 mm (0.05 in) | 1/4SM |
| | KEEN 091355Z AUTO 31004KT 1/4SM OVC006 M02/M03 A2988 RMK AO1 P0005 |
| 08:35 EST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1013 mb (29.91 in) | N 6 kph (N 3.5 mph) | 1.02 mm (0.04 in) | M1/4SM |
| | KEEN 091335Z AUTO 01003KT M1/4SM OVC005 M02/M02 A2990 RMK AO1 P0004 |
| 08:15 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | SSW 6 kph (SSW 3.5 mph) | 0.51 mm (0.02 in) | M1/4SM |
| | KEEN 091315Z AUTO 25003KT M1/4SM OVC004 M02/M04 A2994 RMK AO1 P0002 |
| 07:55 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1014 mb (29.94 in) | N 7 kph (N 4.6 mph) | - | M1/4SM |
| | KEEN 091255Z AUTO 01004KT M1/4SM OVC006 M02/M04 A2994 RMK AO1 |
| 07:35 EST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1015 mb (29.97 in) | N 7 kph (N 4.6 mph) | - | 1/4SM |
| | KEEN 091235Z AUTO 35004KT 1/4SM OVC007 M02/M04 A2996 RMK AO1 |
| 07:15 EST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1015 mb (29.97 in) | NE 9 kph (NE 5.8 mph) | - | 3/4SM |
| | KEEN 091215Z AUTO 04005KT 350V120 3/4SM OVC009 M03/M04 A2997 RMK AO1 |
| 06:55 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1016 mb (30 in) | N 9 kph (N 5.8 mph) | 0.25 mm (0.01 in) | 3/4SM |
| | KEEN 091155Z AUTO 35005KT 3/4SM OVC009 M03/M05 A2999 RMK AO1 P0001 60001 70001 11020 21030 57054 |
| 06:35 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1017 mb (30.03 in) | NNW 13 kph (NNW 8.1 mph) | - | 3/4SM |
| | KEEN 091135Z AUTO 34007KT 3/4SM OVC009 M03/M05 A3003 RMK AO1 |
| 06:15 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1018 mb (30.06 in) | NE 11 kph (NE 6.9 mph) | - | 3/4SM |
| | KEEN 091115Z AUTO 04006KT 3/4SM OVC007 M03/M06 A3005 RMK AO1 |
| 05:55 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1018 mb (30.06 in) | NE 9 kph (NE 5.8 mph) | - | 3/4SM |
| | KEEN 091055Z AUTO 05005KT 3/4SM OVC007 M03/M06 A3006 RMK AO1 |
| 05:35 EST |  Overcast | -3°C / 27°F | -4°C / 25°F | 93% | 1019 mb (30.09 in) | NE 13 kph (NE 8.1 mph) | - | 3/4SM |
| | KEEN 091035Z AUTO 04007KT 3/4SM OVC007 M03/M04 A3008 RMK AO1 |
| 05:15 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1019 mb (30.09 in) | N 6 kph (N 3.5 mph) | - | 3/4SM |
| | KEEN 091015Z AUTO 36003KT 3/4SM OVC011 M03/M05 A3010 RMK AO1 |
| 04:55 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1020 mb (30.12 in) | NW 7 kph (NW 4.6 mph) | - | 1 1/4SM |
| | KEEN 090955Z AUTO 32004KT 1 1/4SM BKN013 BKN020 OVC027 M03/M06 A3011 RMK AO1 |
| 04:35 EST |  Overcast | -2°C / 28°F | -6°C / 21°F | 74% | 1020 mb (30.12 in) | Calm | - | 9SM |
| | KEEN 090935Z AUTO 00000KT 9SM SCT024 SCT029 OVC037 M02/M06 A3013 RMK AO1 |
| 04:15 EST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1021 mb (30.15 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KEEN 090915Z AUTO 30003KT 10SM SCT039 BKN060 OVC080 M02/M08 A3014 RMK AO1 |
| 03:55 EST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1021 mb (30.15 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KEEN 090855Z AUTO 34003KT 10SM FEW060 BKN070 OVC090 M02/M08 A3015 RMK AO1 57037 |
| 03:35 EST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEEN 090835Z AUTO 00000KT 10SM OVC100 M02/M08 A3016 RMK AO1 |
| 03:15 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1021 mb (30.15 in) | NNE 9 kph (NNE 5.8 mph) | - | 10SM |
| | KEEN 090815Z AUTO 02005KT 10SM OVC110 M03/M08 A3016 RMK AO1 |
| 02:55 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1022 mb (30.18 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KEEN 090755Z AUTO 06003KT 10SM OVC110 M03/M06 A3018 RMK AO1 |
| 02:35 EST |  Mostly Cloudy | -3°C / 27°F | -5°C / 23°F | 86% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KEEN 090735Z AUTO 00000KT 10SM BKN110 M03/M05 A3021 RMK AO1 |
| 02:15 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEEN 090715Z AUTO 00000KT 10SM OVC110 M03/M05 A3023 RMK AO1 |
| 01:55 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEEN 090655Z AUTO 00000KT 10SM OVC110 M03/M06 A3025 RMK AO1 |
| 01:35 EST |  Overcast | -3°C / 27°F | -6°C / 21°F | 80% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEEN 090635Z AUTO 00000KT 10SM OVC110 M03/M06 A3025 RMK AO1 |
| 01:15 EST |  Mostly Cloudy | -3°C / 27°F | -5°C / 23°F | 86% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEEN 090615Z AUTO 00000KT 10SM BKN120 M03/M05 A3025 RMK AO1 |
| 00:55 EST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KEEN 090555Z AUTO 00000KT 10SM BKN120 M03/M06 A3026 RMK AO1 11030 21040 57017 |
| 00:35 EST |  Mostly Cloudy | -3°C / 27°F | -6°C / 21°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KEEN 090535Z AUTO 00000KT 10SM BKN100 BKN120 M03/M06 A3027 RMK AO1 |
| 00:15 EST |  Overcast | -3°C / 27°F | -5°C / 23°F | 86% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KEEN 090515Z AUTO 00000KT 10SM OVC100 M03/M05 A3028 RMK AO1 |