Nantucket Weather in 2021

2021 Nantucket Weather Extremes
Highest temperature	92 °F	August 27
Lowest temperature	11 °F	January 29
Highest daily low	74 °F	August 12
Lowest daily high	23 °F	January 30
Most daily precipitation	1.2 inches	May 29

Rank	Temperature	Date
1	92 °F	Aug 27
2	89 °F	Aug 25
2	89 °F	Aug 8
4	88 °F	Jul 27
5	87 °F	Aug 31
5	87 °F	Aug 14
7	85 °F	Jun 6
8	84 °F	Aug 26
8	84 °F	Aug 20
8	84 °F	Aug 13
8	84 °F	Jul 26

Rank	Temperature	Date
1	11 °F	January 29
2	15 °F	January 30
3	16 °F	February 9
3	16 °F	January 31
5	18 °F	February 12
6	20 °F	February 21
6	20 °F	January 24
6	20 °F	January 21
9	21 °F	February 22
9	21 °F	February 10
9	21 °F	February 8
9	21 °F	January 25
9	21 °F	January 11

January 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	44	33	0.00
January 2	53	39	0.56
January 3	43	40	0.13
January 4	44	39	0.40
January 5	40	37	0.01
January 6	40	35	0.00
January 7	41	33	0.00
January 8	37	24	0.00
January 9	36	27	0.00
January 10	39	24	0.00
January 11	44	21	0.00
January 12	41	27	0.00
January 13	42	31	0.00
January 14	46	37	0.00
January 15	46	34	0.00
January 16	53	39	0.70
January 17	43	38	0.00
January 18	45	35	0.00
January 19	41	29	0.01
January 20	37	29	0.00
January 21	41	20	0.00
January 22	44	24	0.00
January 23	35	22	0.00
January 24	31	20	0.00
January 25	34	21	0.00
January 26	38	29	0.23
January 27	41	32	0.02
January 28	37	23	0.01
January 29	23	11	0.00
January 30	23	15	0.00
January 31	30	16	0.00

February 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	43	30	1.08
February 2	43	35	0.01
February 3	36	32	0.00
February 4	39	29	0.00
February 5	44	31	0.00
February 6	44	34	0.00
February 7	50	28	0.78
February 8	32	21	0.00
February 9	34	16	0.36
February 10	32	21	0.00
February 11	29	24	0.00
February 12	26	18	0.00
February 13	32	25	0.03
February 14	38	31	0.00
February 15	39	35	0.02
February 16	50	37	0.17
February 17	37	23	0.00
February 18	33	27	0.40
February 19	35	32	0.51
February 20	33	27	0.00
February 21	31	20	0.00
February 22	44	21	0.81
February 23	43	34	0.00
February 24	46	37	0.00
February 25	48	35	0.00
February 26	39	28	0.00
February 27	47	33	0.17
February 28	n/a	n/a	0.00

March 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	n/a	n/a	0.00
March 2	n/a	n/a	0.00
March 3	n/a	n/a	0.00
March 4	n/a	n/a	0.00
March 5	n/a	n/a	0.00
March 6	n/a	n/a	0.00
March 7	n/a	n/a	0.00
March 8	n/a	n/a	0.00
March 9	n/a	n/a	0.00
March 10	n/a	n/a	0.00
March 11	n/a	n/a	0.00
March 12	n/a	n/a	0.00
March 13	n/a	n/a	0.00
March 14	n/a	n/a	0.00
March 15	n/a	n/a	0.00
March 16	n/a	n/a	0.00
March 17	n/a	n/a	0.00
March 18	n/a	n/a	0.00
March 19	n/a	n/a	0.00
March 20	n/a	n/a	0.00
March 21	n/a	n/a	0.00
March 22	n/a	n/a	0.00
March 23	n/a	n/a	0.00
March 24	n/a	n/a	0.00
March 25	n/a	n/a	0.00
March 26	n/a	n/a	0.00
March 27	n/a	n/a	0.00
March 28	n/a	n/a	0.00
March 29	n/a	n/a	0.00
March 30	n/a	n/a	0.00
March 31	n/a	n/a	0.00

April 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	n/a	n/a	0.00
April 2	n/a	n/a	0.00
April 3	n/a	n/a	0.00
April 4	n/a	n/a	0.00
April 5	n/a	n/a	0.00
April 6	n/a	n/a	0.00
April 7	n/a	n/a	0.00
April 8	54	42	0.00
April 9	60	40	0.00
April 10	52	40	0.00
April 11	54	43	0.00
April 12	52	38	0.00
April 13	51	38	0.00
April 14	54	37	0.00
April 15	49	38	0.08
April 16	49	39	0.63
April 17	47	39	0.11
April 18	55	43	0.00
April 19	61	41	0.00
April 20	58	42	0.00
April 21	59	42	0.04
April 22	47	36	0.00
April 23	53	39	0.00
April 24	61	44	0.00
April 25	49	47	1.09
April 26	58	39	0.00
April 27	55	40	0.00
April 28	61	47	0.04
April 29	58	49	0.14
April 30	62	50	0.10

May 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	60	43	0.05
May 2	60	45	0.00
May 3	67	49	0.11
May 4	57	48	0.59
May 5	52	46	0.03
May 6	64	44	0.00
May 7	60	42	0.00
May 8	54	45	0.00
May 9	57	47	0.08
May 10	58	45	0.75
May 11	60	46	0.00
May 12	59	45	0.00
May 13	66	43	0.00
May 14	73	50	0.00
May 15	73	50	0.00
May 16	69	49	0.00
May 17	70	49	0.00
May 18	68	51	0.00
May 19	69	49	0.00
May 20	62	46	0.00
May 21	56	45	0.00
May 22	63	51	0.00
May 23	82	56	0.00
May 24	62	49	0.00
May 25	63	50	0.00
May 26	65	57	0.00
May 27	76	60	0.06
May 28	61	47	0.19
May 29	49	44	1.15
May 30	57	48	0.40
May 31	61	55	0.46

June 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	67	54	0.00
June 2	68	54	0.00
June 3	n/a	n/a	0.29
June 4	64	58	0.07
June 5	67	58	0.00
June 6	85	62	0.00
June 7	70	62	0.00
June 8	69	62	0.00
June 9	81	63	0.00
June 10	74	54	0.00
June 11	68	52	0.00
June 12	70	56	0.13
June 13	70	57	0.00
June 14	72	58	0.00
June 15	73	63	0.00
June 16	75	54	0.00
June 17	75	53	0.00
June 18	71	62	0.00
June 19	74	65	0.00
June 20	77	66	0.01
June 21	75	66	0.00
June 22	76	66	0.22
June 23	70	56	0.00
June 24	73	50	0.02
June 25	75	61	0.31
June 26	75	67	0.00
June 27	77	67	0.00
June 28	78	70	0.00
June 29	80	70	0.00
June 30	79	70	0.00

July 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	79	71	0.36
July 2	74	62	0.18
July 3	65	60	0.03
July 4	68	56	0.16
July 5	69	57	0.00
July 6	76	68	0.00
July 7	82	70	0.00
July 8	n/a	n/a	0.00
July 9	75	69	0.05
July 10	79	65	0.00
July 11	76	65	0.00
July 12	80	63	0.19
July 13	72	63	0.00
July 14	76	65	0.00
July 15	77	70	0.00
July 16	78	70	0.00
July 17	80	71	0.00
July 18	80	71	0.00
July 19	80	70	0.00
July 20	83	67	0.00
July 21	82	69	0.00
July 22	78	67	0.00
July 23	82	64	0.00
July 24	82	60	0.00
July 25	74	68	0.00
July 26	84	71	n/a
July 27	88	68	n/a
July 28	77	58	n/a
July 29	77	57	n/a
July 30	81	69	n/a
July 31	74	64	n/a

August 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	77	61	n/a
August 2	79	65	n/a
August 3	76	59	n/a
August 4	72	65	n/a
August 5	75	68	n/a
August 6	77	67	n/a
August 7	78	69	n/a
August 8	89	68	n/a
August 9	79	68	n/a
August 10	78	72	n/a
August 11	79	73	n/a
August 12	81	74	n/a
August 13	84	73	n/a
August 14	87	73	n/a
August 15	82	60	n/a
August 16	80	59	n/a
August 17	78	61	n/a
August 18	81	68	n/a
August 19	81	71	n/a
August 20	84	71	0.00
August 21	83	68	0.00
August 22	79	73	0.00
August 23	81	72	n/a
August 24	83	72	n/a
August 25	89	71	n/a
August 26	84	69	n/a
August 27	92	72	n/a
August 28	76	63	n/a
August 29	76	64	n/a
August 30	82	70	n/a
August 31	87	72	n/a

September 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	80	68	n/a
September 2	77	61	n/a
September 3	74	62	n/a
September 4	78	62	n/a
September 5	76	62	n/a
September 6	75	68	n/a
September 7	78	63	n/a
September 8	79	67	n/a
September 9	78	71	n/a
September 10	78	67	n/a
September 11	75	64	n/a
September 12	78	70	n/a
September 13	79	64	n/a
September 14	77	63	n/a
September 15	79	69	0.00
September 16	74	67	0.37
September 17	77	68	0.08
September 18	77	68	0.00
September 19	73	56	0.00
September 20	72	52	0.00
September 21	76	60	0.00
September 22	n/a	n/a	0.00
September 23	n/a	n/a	0.00
September 24	78	70	1.13
September 25	77	67	0.14
September 26	75	61	0.38
September 27	75	61	0.00
September 28	77	67	0.00
September 29	69	57	0.00
September 30	65	57	0.01

October 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	67	52	0.00
October 2	71	54	0.00
October 3	75	65	0.01
October 4	67	62	0.84
October 5	65	61	0.28
October 6	71	52	0.00
October 7	72	51	0.00
October 8	72	59	0.00
October 9	68	61	0.00
October 10	67	61	0.31
October 11	70	57	0.00
October 12	73	54	0.00
October 13	71	53	0.00
October 14	72	58	0.00
October 15	66	61	0.00
October 16	73	63	0.04
October 17	69	57	0.09
October 18	63	53	0.02
October 19	64	51	0.00
October 20	72	60	0.00
October 21	70	59	0.00
October 22	72	61	0.00
October 23	65	55	0.00
October 24	59	50	0.00
October 25	70	56	0.63
October 26	66	60	1.07
October 27	64	53	1.09
October 28	55	52	0.00
October 29	58	51	0.00
October 30	66	57	0.53
October 31	67	60	0.43

November 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	65	51	0.00
November 2	58	41	0.22
November 3	55	44	0.02
November 4	55	43	0.00
November 5	55	36	0.00
November 6	55	32	0.00
November 7	56	34	0.00
November 8	59	46	0.00
November 9	63	43	0.00
November 10	66	43	0.00
November 11	58	42	0.00
November 12	65	53	0.39
November 13	62	44	0.05
November 14	56	45	0.00
November 15	57	45	0.02
November 16	50	41	0.00
November 17	56	41	0.00
November 18	64	56	0.00
November 19	62	42	0.07
November 20	49	39	0.00
November 21	58	48	0.03
November 22	59	45	0.31
November 23	45	32	0.00
November 24	46	31	0.00
November 25	57	39	0.00
November 26	53	40	0.15
November 27	45	34	0.00
November 28	44	33	0.01
November 29	48	34	0.00
November 30	43	32	0.07

December 2021 Nantucket Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	51	39	0.00
December 2	58	42	0.01
December 3	56	37	0.00
December 4	47	33	0.00
December 5	49	34	0.00
December 6	61	48	0.01
December 7	59	34	0.03
December 8	47	35	0.20
December 9	42	31	0.00
December 10	51	31	0.00
December 11	62	44	0.46
December 12	60	40	0.04
December 13	52	46	0.00
December 14	51	39	0.00
December 15	51	30	0.00
December 16	56	51	0.00
December 17	61	48	0.00
December 18	50	44	0.01
December 19	54	36	0.00
December 20	42	31	0.00
December 21	48	36	0.00
December 22	59	36	0.22
December 23	37	30	0.00
December 24	36	29	0.01
December 25	50	35	0.22
December 26	44	38	0.03
December 27	41	35	0.00
December 28	49	40	0.05
December 29	47	41	0.01
December 30	51	45	0.00
December 31	50	47	0.02