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Mt. Washington May Weather

Averages and records for weather in Mt. Washington, New Hampshire in the month of May.

Typical Mt. Washington May Weather 1991–2020
Average daily high	42.3 °F
Average daily low	29.9 °F
Average monthly precipitation	7.7 inches
Average monthly snow	13.1 inches
Daily chance of precipitation	56.2%
Daily chance of snow	20.9%

Mt. Washington May Weather Records 1948–2024
Highest temperature	66 °F	May 27, 2020
Lowest temperature	-2 °F	May 7, 1966
Highest daily low	56 °F	May 27, 2020
Lowest daily high	9 °F	May 3, 1986
Hottest average high temperature	47.4 °F	1998
Coldest average high temperature	31.0 °F	1967
Most daily precipitation	3.8 inches	May 7, 1997
Most monthly precipitation	19.3 inches	1997
Most daily snow	22.8 inches	May 14, 2017
Most monthly snow	95.8 inches	1997

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	36.9	23.9	57	2
May 2	37.2	24.2	58	2
May 3	37.5	24.6	58	2
May 4	37.7	24.9	54	4
May 5	38.0	25.1	57	6
May 6	38.3	25.4	57	7
May 7	38.7	25.7	57	-2
May 8	39.0	26.2	57	-1
May 9	39.4	26.7	61	7
May 10	39.9	27.2	59	6
May 11	40.3	27.6	57	8
May 12	40.7	28.1	58	11
May 13	41.1	28.6	60	9
May 14	41.5	29.1	62	11
May 15	41.9	29.5	59	13
May 16	42.2	29.8	59	9
May 17	42.5	30.1	58	6
May 18	42.8	30.5	64	9
May 19	43.1	30.7	64	13
May 20	43.4	30.9	61	13
May 21	43.5	31.2	62	14
May 22	43.7	31.5	66	11
May 23	43.9	31.7	63	11
May 24	44.2	32.0	63	6
May 25	44.5	32.4	65	10
May 26	44.8	32.7	62	16
May 27	45.1	33.2	66	10
May 28	45.6	33.6	65	16
May 29	46.0	34.0	64	17
May 30	46.3	34.3	63	13
May 31	46.6	34.7	64	12

Weather Station Details

Years	Station	Coordinates
1948–2024	Mt. Washington	location