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Ellensburg May Weather

Averages and records for weather in Ellensburg, Washington in the month of May.

Typical Ellensburg May Weather 1991–2020
Average daily high	69.2 °F
Average daily low	43.3 °F
Average monthly precipitation	0.8 inches
Average monthly snow	none
Daily chance of precipitation	23.9%
Daily chance of snow	0%

Ellensburg May Weather Records 1893–2024
Highest temperature	99 °F	May 31, 1986
Lowest temperature	18 °F	May 1, 1954
Highest daily low	65 °F	May 29, 1934
Lowest daily high	45 °F	May 1, 1894
Hottest average high temperature	79.4 °F	1924
Coldest average high temperature	61.9 °F	2014
Most daily precipitation	2.1 inches	May 15, 2011
Most monthly precipitation	2.8 inches	2011
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	65.2	38.9	89	18
May 2	65.6	39.3	86	28
May 3	65.9	39.6	86	27
May 4	66.1	40.0	87	25
May 5	66.4	40.3	90	25
May 6	66.5	40.6	89	28
May 7	66.7	40.8	91	27
May 8	66.9	41.0	91	26
May 9	67.2	41.3	92	28
May 10	67.6	41.6	90	21
May 11	67.9	42.0	98	24
May 12	68.2	42.2	93	26
May 13	68.4	42.5	94	29
May 14	68.7	42.7	91	26
May 15	69.1	43.0	90	26
May 16	69.4	43.4	90	31
May 17	69.7	43.7	94	30
May 18	70.0	44.0	96	30
May 19	70.3	44.3	94	28
May 20	70.5	44.5	91	29
May 21	70.8	44.9	93	31
May 22	71.0	45.1	92	29
May 23	71.1	45.3	95	28
May 24	71.3	45.5	94	30
May 25	71.5	45.7	93	31
May 26	71.6	45.8	94	30
May 27	71.7	46.0	91	34
May 28	71.7	46.1	95	31
May 29	71.8	46.3	98	32
May 30	72.0	46.5	96	31
May 31	72.0	46.6	99	32

Weather Station Details

Years	Station	Coordinates
1893–2024	Ellensburg	location