| 16:56 EST |  Obscured Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1012 mb (29.88 in) | NNW 22 kph (NNW 13.8 mph) | 0.00 mm (0.00 in) | 1 1/2SM |
| | KHPN 052156Z 34012KT 1 1/2SM -SN BR VV005 01/M01 A2987 RMK AO2 SLP121 P0000 T00061011 |
| 15:56 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1011 mb (29.85 in) | N 19 kph (N 11.5 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KHPN 052056Z 36010KT 1 1/2SM -SN BR SCT006 SCT010 OVC015 01/M01 A2986 RMK AO2 RAE22B41E52UPB22E28SNB28 SLP118 P0001 60004 T00111006 58011 |
| 15:54 EST |  Overcast Light Snow | 1°C / 34°F | -1°C / 30°F | 87% | 1011 mb (29.85 in) | N 17 kph (N 10.4 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KHPN 052054Z 35009KT 1 1/2SM -SN BR SCT006 SCT010 OVC015 01/M01 A2986 RMK AO2 RAE22B41E52UPB22E28SNB28 P0001 |
| 14:56 EST |  Overcast Light Rain | 2°C / 36°F | 0°C / 32°F | 87% | 1011 mb (29.85 in) | N 15 kph (N 9.2 mph) | 0.51 mm (0.02 in) | 3SM |
| | KHPN 051956Z 36008KT 3SM -RA BR BKN008 OVC012 02/00 A2986 RMK AO2 SNB29E49 SLP116 P0002 T00170000 |
| 13:56 EST |  Overcast Light Rain | 3°C / 37°F | 1°C / 34°F | 87% | 1013 mb (29.91 in) | N 19 kph (N 11.5 mph) | 0.25 mm (0.01 in) | 1 1/2SM |
| | KHPN 051856Z 35010KT 1 1/2SM -RA BR OVC015 03/01 A2991 RMK AO2 SLP133 P0001 T00280006 |
| 12:56 EST |  Overcast Light Rain | 4°C / 39°F | 0°C / 32°F | 75% | 1012 mb (29.88 in) | N 9 kph (N 5.8 mph) | 0.00 mm (0.00 in) | 9SM |
| | KHPN 051756Z 01005KT 9SM -RA SCT010 OVC022 04/00 A2989 RMK AO2 DZE53RAB53 SLP128 P0000 60000 T00390000 10050 20039 58050 |
| 11:56 EST |  Overcast Drizzle | 4°C / 39°F | -1°C / 30°F | 70% | 1014 mb (29.94 in) | N 9 kph (N 5.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KHPN 051656Z 01005KT 10SM DZ OVC049 04/M01 A2994 RMK AO2 RAB10E30B50E52DZB52 SLP144 P0000 T00441006 |
| 10:56 EST |  Overcast | 5°C / 41°F | -1°C / 30°F | 66% | 1016 mb (30 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KHPN 051556Z 06005KT 10SM SCT020 OVC060 05/M01 A3000 RMK AO2 SLP164 T00501011 |
| 09:56 EST |  Overcast | 5°C / 41°F | -3°C / 27°F | 57% | 1017 mb (30.03 in) | ENE 9 kph (ENE 5.8 mph) | - | 8SM |
| | KHPN 051456Z 06005KT 8SM OVC050 05/M03 A3004 RMK AO2 SLP179 T00501028 58016 |
| 08:56 EST |  Overcast | 4°C / 39°F | -3°C / 27°F | 61% | 1018 mb (30.06 in) | NNE 15 kph (NNE 9.2 mph) | - | 10SM |
| | KHPN 051356Z 02008KT 10SM OVC055 04/M03 A3006 RMK AO2 SLP184 T00441033 |
| 07:56 EST |  Overcast | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KHPN 051256Z 36007KT 10SM OVC070 04/M03 A3008 RMK AO2 SLP193 T00391033 |
| 06:56 EST |  Overcast | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KHPN 051156Z 36006KT 10SM FEW090 OVC110 04/M03 A3009 RMK AO2 SLP195 T00391028 10050 20028 56012 |
| 05:56 EST |  Overcast | 4°C / 39°F | -2°C / 28°F | 65% | 1019 mb (30.09 in) | NNW 15 kph (NNW 9.2 mph) | - | 10SM |
| | KHPN 051056Z 34008KT 10SM OVC120 04/M02 A3010 RMK AO2 SLP199 T00391022 |
| 04:56 EST |  Partly Cloudy | 3°C / 37°F | -2°C / 28°F | 70% | 1019 mb (30.09 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KHPN 050956Z 34005KT 10SM FEW120 03/M02 A3010 RMK AO2 SLP198 T00331017 |
| 03:56 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KHPN 050856Z 00000KT 10SM CLR 03/M02 A3013 RMK AO2 SLP206 T00281017 58003 |
| 02:56 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KHPN 050756Z 00000KT 10SM CLR 04/M01 A3014 RMK AO2 SLP209 T00391006 |
| 01:56 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KHPN 050656Z 34003KT 10SM CLR 04/M01 A3013 RMK AO2 SLP206 T00441011 |
| 00:56 EST |  Mostly Cloudy | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KHPN 050556Z 00000KT 10SM BKN120 04/M01 A3013 RMK AO2 SLP209 T00441011 10067 20044 58006 |