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Hamilton May Weather

Averages and records for weather in Hamilton, Montana in the month of May.

Typical Hamilton May Weather 1991–2020
Average daily high	67.4 °F
Average daily low	39.1 °F
Average monthly precipitation	1.5 inches
Daily chance of precipitation	34.8%

Hamilton May Weather Records 1895–2024
Highest temperature	102 °F	May 30, 1936
Lowest temperature	18 °F	May 6, 1903
Highest daily low	65 °F	May 9, 1906
Lowest daily high	39 °F	May 22, 2021
Hottest average high temperature	80.1 °F	1936
Coldest average high temperature	60.6 °F	1908
Most daily precipitation	2.2 inches	May 15, 1952
Most monthly precipitation	4.7 inches	1980

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	63.2	35.1	83	21
May 2	63.5	35.4	85	22
May 3	63.9	35.7	88	25
May 4	64.2	36.0	86	26
May 5	64.5	36.3	86	21
May 6	64.7	36.6	86	18
May 7	64.8	36.8	86	22
May 8	65.0	37.0	89	22
May 9	65.3	37.2	85	23
May 10	65.6	37.5	89	21
May 11	65.8	37.7	89	24
May 12	66.2	38.0	90	24
May 13	66.5	38.3	92	25
May 14	66.9	38.6	90	28
May 15	67.2	38.8	99	27
May 16	67.5	39.2	90	26
May 17	67.8	39.5	86	27
May 18	68.1	39.8	88	28
May 19	68.5	40.0	90	26
May 20	68.7	40.3	89	30
May 21	68.9	40.7	89	28
May 22	69.2	40.9	90	24
May 23	69.5	41.3	90	27
May 24	69.6	41.5	93	30
May 25	69.8	41.7	91	28
May 26	69.9	42.0	94	27
May 27	70.1	42.2	95	28
May 28	70.2	42.4	92	27
May 29	70.3	42.6	93	29
May 30	70.5	42.7	102	30
May 31	70.6	42.9	94	25

Weather Station Details

Years	Station	Coordinates
1895–2024	Hamilton	location