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Hyannis May Weather

Averages and records for weather in Hyannis, Massachusetts in the month of May.

Typical Hyannis May Weather 1991–2020
Average daily high	63.4 °F
Average daily low	48.3 °F
Average monthly precipitation	3.3 inches
Average monthly snow	none
Daily chance of precipitation	32.5%
Daily chance of snow	0%

Hyannis May Weather Records 1893–2024
Highest temperature	93 °F	May 27, 1914
Lowest temperature	24 °F	May 7, 1967
Highest daily low	68 °F	May 31, 1987
Lowest daily high	42 °F	May 3, 1988
Hottest average high temperature	70.4 °F	2023
Coldest average high temperature	55.6 °F	1907
Most daily precipitation	3.6 inches	May 28, 1966
Most monthly precipitation	9.6 inches	1901
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
May 1	58.9	43.9	74	26
May 2	59.2	44.2	86	25
May 3	59.5	44.5	85	25
May 4	59.8	44.8	87	28
May 5	60.0	45.0	77	29
May 6	60.2	45.2	84	24
May 7	60.5	45.4	86	24
May 8	60.8	45.7	84	28
May 9	61.1	46.0	82	29
May 10	61.5	46.3	88	33
May 11	61.8	46.6	90	27
May 12	62.1	46.9	83	30
May 13	62.5	47.3	84	26
May 14	62.8	47.5	78	28
May 15	63.1	47.9	81	31
May 16	63.4	48.3	80	28
May 17	63.8	48.5	76	27
May 18	64.1	48.8	82	35
May 19	64.4	49.1	85	29
May 20	64.7	49.4	82	35
May 21	65.0	49.7	88	30
May 22	65.2	49.9	86	34
May 23	65.3	50.2	91	34
May 24	65.6	50.4	86	36
May 25	65.8	50.7	85	27
May 26	66.2	51.1	88	33
May 27	66.5	51.4	93	32
May 28	66.9	51.8	86	32
May 29	67.4	52.2	89	29
May 30	67.7	52.6	87	30
May 31	67.9	52.9	92	31

Weather Station Details

Years	Station	Coordinates
1893–2024	Hyannis	location