IEM :: Observation History

15 September 2026 Observation History, [ACK] NANTUCKET MEMORIAL, timezone: America/New_York

Time	Wind (mph)	Vis. (mi.)	Sky Cond. (100s ft)	Temperature (ºF)					Relative Humidity	Pressure		Precipitation (in.)
				Air	Dwpt	Feels Like	6 hour			altimeter (in.)	sea level (mb)	1 hr	3 hr	6 hr
				Air	Dwpt	Feels Like	Max.	Min.		altimeter (in.)	sea level (mb)	1 hr	3 hr	6 hr
12:00 AM	NNE 16	10	CLR							30.21		M	M	M
KACK 150400Z AUTO 02014KT 10SM CLR 17/09 A3021 RMK T01700090 MADISHF
12:05 AM	N 15	10	CLR							30.21		M	M	M
KACK 150405Z AUTO 01013KT 10SM CLR 17/10 A3021 RMK T01700100 MADISHF
12:10 AM	NNE 16	10	CLR							30.21		M	M	M
KACK 150410Z AUTO 02014KT 10SM CLR 17/10 A3021 RMK T01700100 MADISHF
12:15 AM	NNE 12	10	CLR							30.21		M	M	M
KACK 150415Z AUTO 02010KT 10SM CLR 16/10 A3021 RMK T01600100 MADISHF
12:20 AM	NNE 12	10	CLR							30.21		M	M	M
KACK 150420Z AUTO 02010KT 10SM CLR 16/10 A3021 RMK T01600100 MADISHF
12:25 AM	NNE 13	10	CLR							30.21		M	M	M
KACK 150425Z AUTO 02011KT 10SM CLR 16/11 A3021 RMK T01600110 MADISHF
12:30 AM	NNE 15	10	CLR							30.21		M	M	M
KACK 150430Z AUTO 03013KT 10SM CLR 16/11 A3021 RMK T01600110 MADISHF
12:35 AM	NNE 13	10	CLR							30.21		M	M	M
KACK 150435Z AUTO 02011KT 10SM CLR 16/10 A3021 RMK T01600100 MADISHF
12:40 AM	NNE 15	10	CLR							30.21		M	M	M
KACK 150440Z AUTO 03013KT 10SM CLR 16/10 A3021 RMK T01600100 MADISHF
12:45 AM	M	10	CLR							30.21		M	M	M
KACK 150445Z AUTO ///17KT 10SM CLR 16/09 A3021 RMK T01600090 MADISHF
12:50 AM	NNE 14	10	CLR							30.21		M	M	M
KACK 150450Z AUTO 02012KT 10SM CLR 16/09 A3021 RMK T01600090 MADISHF
12:53 AM	NNE 13G24	10	FEW037	61	49	61			65	30.21	1023	0.00	M	M
KACK 150453Z AUTO 03011G21KT 10SM FEW037 16/09 A3021 RMK AO2 SLP230 T01610094 402220156
1:00 AM	NNE 17	10	FEW037							30.21		M	M	M
KACK 150500Z AUTO 03015KT 10SM FEW037 16/09 A3021 RMK T01600090 MADISHF
1:05 AM	NNE 16	10	CLR							30.21		M	M	M
KACK 150505Z AUTO 02014KT 10SM CLR 16/09 A3021 RMK T01600090 MADISHF
1:10 AM	NNE 15	10	CLR							30.21		M	M	M
KACK 150510Z AUTO 03013KT 10SM CLR 16/09 A3021 RMK T01600090 MADISHF
1:15 AM	NNE 14	10	FEW036							30.22		M	M	M
KACK 150515Z AUTO 02012KT 10SM FEW036 16/09 A3022 RMK T01600090 MADISHF
1:20 AM	NNE 16	10	FEW036							30.21		M	M	M
KACK 150520Z AUTO 03014KT 10SM FEW036 16/09 A3021 RMK T01600090 MADISHF
1:25 AM	NNE 14	10	FEW036							30.21		M	M	M
KACK 150525Z AUTO 03012KT 10SM FEW036 16/09 A3021 RMK T01600090 MADISHF
1:30 AM	NNE 16	10	FEW036							30.22		M	M	M
KACK 150530Z AUTO 03014KT 10SM FEW036 16/09 A3022 RMK T01600090 MADISHF
1:40 AM	NNE 15	10	CLR							30.22		M	M	M
KACK 150540Z AUTO 02013KT 10SM CLR 16/08 A3022 RMK T01600080 MADISHF
1:45 AM	NNE 14G22	10	CLR							30.21		M	M	M
KACK 150545Z AUTO 02012G19KT 10SM CLR 16/08 A3021 RMK T01600080 MADISHF
1:50 AM	NNE 12	10	CLR							30.22		M	M	M
KACK 150550Z AUTO 02010KT 10SM CLR 15/08 A3022 RMK T01500080 MADISHF
1:53 AM	NNE 15	10	CLR	59	47	59	65	59	64	30.23	1023.5	0.00	M	M
KACK 150553Z AUTO 02013KT 10SM CLR 15/08 A3023 RMK AO2 SLP235 T01500083 10183 20150 51014
1:55 AM	NNE 14	10	CLR							30.23		M	M	M
KACK 150555Z AUTO 02012KT 10SM CLR 16/09 A3023 RMK T01600090 MADISHF
2:00 AM	NNE 16	10	CLR							30.22		M	M	M
KACK 150600Z AUTO 03014KT 10SM CLR 16/09 A3022 RMK T01600090 MADISHF
2:05 AM	NNE 14	10	CLR							30.23		M	M	M
KACK 150605Z AUTO 02012KT 10SM CLR 15/08 A3023 RMK T01500080 MADISHF
2:10 AM	NNE 14	10	CLR							30.23		M	M	M
KACK 150610Z AUTO 03012KT 10SM CLR 15/09 A3023 RMK T01500090 MADISHF
2:15 AM	NNE 15	10	CLR							30.22		M	M	M
KACK 150615Z AUTO 03013KT 10SM CLR 15/08 A3022 RMK T01500080 MADISHF
2:20 AM	NNE 15G21	10	CLR							30.22		M	M	M
KACK 150620Z AUTO 03013G18KT 10SM CLR 15/09 A3022 RMK T01500090 MADISHF
2:25 AM	NNE 16	10	CLR							30.22		M	M	M
KACK 150625Z AUTO 03014KT 10SM CLR 15/09 A3022 RMK T01500090 MADISHF
2:30 AM	NE 13	10	CLR							30.23		M	M	M
KACK 150630Z AUTO 04011KT 10SM CLR 15/09 A3023 RMK T01500090 MADISHF
2:35 AM	NE 10	10	CLR							30.23		M	M	M
KACK 150635Z AUTO 04009KT 10SM CLR 14/09 A3023 RMK T01400090 MADISHF
2:40 AM	NE 14	10	CLR							30.23		M	M	M
KACK 150640Z AUTO 04012KT 10SM CLR 14/09 A3023 RMK T01400090 MADISHF
2:45 AM	NE 12	10	CLR							30.23		M	M	M
KACK 150645Z AUTO 04010KT 10SM CLR 14/09 A3023 RMK T01400090 MADISHF
2:50 AM	NE 14	10	CLR							30.23		M	M	M
KACK 150650Z AUTO 04012KT 10SM CLR 14/09 A3023 RMK T01400090 MADISHF
2:53 AM	NNE 13	10	CLR	58	48	58			69	30.23	1023.7	0.00	M	M
KACK 150653Z AUTO 03011KT 10SM CLR 14/09 A3023 RMK AO2 SLP237 T01440089
2:55 AM	NNE 14	10	CLR							30.24		M	M	M
KACK 150655Z AUTO 03012KT 10SM CLR 14/08 A3024 RMK T01400080 MADISHF
3:00 AM	NNE 13	10	CLR							30.24		M	M	M
KACK 150700Z AUTO 03011KT 10SM CLR 14/09 A3024 RMK T01400090 MADISHF
3:05 AM	NE 13	10	CLR							30.24		M	M	M
KACK 150705Z AUTO 04011KT 10SM CLR 14/09 A3024 RMK T01400090 MADISHF
3:10 AM	NE 10	10	CLR							30.24		M	M	M
KACK 150710Z AUTO 04009KT 10SM CLR 14/09 A3024 RMK T01400090 MADISHF
3:15 AM	NE 12	10	CLR							30.23		M	M	M
KACK 150715Z AUTO 04010KT 10SM CLR 14/09 A3023 RMK T01400090 MADISHF
3:20 AM	NE 13	10	CLR							30.24		M	M	M
KACK 150720Z AUTO 04011KT 10SM CLR 14/09 A3024 RMK T01400090 MADISHF
3:25 AM	NNE 12	10	CLR							30.24		M	M	M
KACK 150725Z AUTO 03010KT 10SM CLR 14/09 A3024 RMK T01400090 MADISHF
3:30 AM	NNE 10	10	CLR							30.25		M	M	M
KACK 150730Z AUTO 03009KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
3:35 AM	NNE 9	10	CLR							30.25		M	M	M
KACK 150735Z AUTO 03008KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
3:40 AM	NE 13	10	CLR							30.25		M	M	M
KACK 150740Z AUTO 04011KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
3:45 AM	NE 12	10	CLR							30.25		M	M	M
KACK 150745Z AUTO 04010KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
3:50 AM	NNE 13	10	CLR							30.25		M	M	M
KACK 150750Z AUTO 03011KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
3:53 AM	NNE 12	10	CLR	57	48	57			72	30.25	1024.3	0.00	M	M
KACK 150753Z AUTO 03010KT 10SM CLR 14/09 A3025 RMK AO2 SLP243 T01390089
4:00 AM	NNE 10	10	CLR							30.25		M	M	M
KACK 150800Z AUTO 03009KT 10SM CLR 14/09 A3025 RMK T01400090 MADISHF
4:05 AM	NNE 10	10	CLR							30.25		M	M	M
KACK 150805Z AUTO 03009KT 10SM CLR 13/09 A3025 RMK T01300090 MADISHF
4:15 AM	NE 9	10	CLR							30.25		M	M	M
KACK 150815Z AUTO 04008KT 10SM CLR 13/09 A3025 RMK T01300090 MADISHF
4:20 AM	NE 9	10	CLR							30.26		M	M	M
KACK 150820Z AUTO 04008KT 10SM CLR 13/08 A3026 RMK T01300080 MADISHF
4:25 AM	NE 9	10	CLR							30.26		M	M	M
KACK 150825Z AUTO 04008KT 10SM CLR 13/09 A3026 RMK T01300090 MADISHF
4:30 AM	NE 9	10	CLR							30.26		M	M	M
KACK 150830Z AUTO 04008KT 10SM CLR 13/08 A3026 RMK T01300080 MADISHF
4:35 AM	NNE 9	10	CLR							30.26		M	M	M
KACK 150835Z AUTO 03008KT 10SM CLR 13/09 A3026 RMK T01300090 MADISHF
4:40 AM	NE 9	10	CLR							30.26		M	M	M
KACK 150840Z AUTO 04008KT 10SM CLR 13/08 A3026 RMK T01300080 MADISHF
4:45 AM	NNE 9	10	CLR							30.26		M	M	M
KACK 150845Z AUTO 03008KT 10SM CLR 13/08 A3026 RMK T01300080 MADISHF
4:50 AM	NNE 9	10	CLR							30.26		M	M	M
KACK 150850Z AUTO 03008KT 10SM CLR 13/08 A3026 RMK T01300080 MADISHF
4:53 AM	NNE 8	10	CLR	55	47	55			74	30.26	1024.8	0.00	M	M
KACK 150853Z AUTO 03007KT 10SM CLR 13/08 A3026 RMK AO2 SLP248 T01280083 53013
5:00 AM	NNE 8	10	CLR							30.26		M	M	M
KACK 150900Z AUTO 03007KT 10SM CLR 12/08 A3026 RMK T01200080 MADISHF
5:05 AM	NE 9	10	CLR							30.27		M	M	M
KACK 150905Z AUTO 04008KT 10SM CLR 13/08 A3027 RMK T01300080 MADISHF
5:10 AM	NE 8	10	CLR							30.27		M	M	M
KACK 150910Z AUTO 04007KT 10SM CLR 13/09 A3027 RMK T01300090 MADISHF
5:15 AM	NE 8	10	CLR							30.28		M	M	M
KACK 150915Z AUTO 04007KT 10SM CLR 13/09 A3028 RMK T01300090 MADISHF
5:20 AM	NNE 8	10	CLR							30.28		M	M	M
KACK 150920Z AUTO 03007KT 10SM CLR 12/08 A3028 RMK T01200080 MADISHF
5:25 AM	NNE 9	10	CLR							30.28		M	M	M
KACK 150925Z AUTO 03008KT 10SM CLR 12/09 A3028 RMK T01200090 MADISHF
5:30 AM	NNE 8	10	CLR							30.29		M	M	M
KACK 150930Z AUTO 03007KT 10SM CLR 12/09 A3029 RMK T01200090 MADISHF
5:35 AM	NNE 8	10	CLR							30.29		M	M	M
KACK 150935Z AUTO 03007KT 10SM CLR 12/09 A3029 RMK T01200090 MADISHF
5:40 AM	NNE 8	10	FEW035							30.29		M	M	M
KACK 150940Z AUTO 03007KT 10SM FEW035 13/09 A3029 RMK T01300090 MADISHF
5:45 AM	NNE 8	10	FEW035							30.29		M	M	M
KACK 150945Z AUTO 03007KT 10SM FEW035 13/09 A3029 RMK T01300090 MADISHF
5:50 AM	NE 8	10	SCT035							30.29		M	M	M
KACK 150950Z AUTO 04007KT 10SM SCT035 13/09 A3029 RMK T01300090 MADISHF
5:53 AM	NNE 8	10	SCT035	55	49	55			80	30.29	1025.6	0.00	M	M
KACK 150953Z 03007KT 10SM SCT035 13/09 A3029 RMK AO2 SLP256 T01280094

API: The IEM API webservice that provided data to this page. For more details, see documentation.

Data Notes

For recent years, this page also optionally shows observations from the MADIS High Frequency METAR dataset. This dataset had a problem with temperatures detailed here.