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Riverton May Weather

Averages and records for weather in Riverton, Wyoming in the month of May.

Typical Riverton May Weather 1991–2020
Average daily high	68.6 °F
Average daily low	40.1 °F
Average monthly precipitation	2.0 inches
Average monthly snow	2.0 inches
Daily chance of precipitation	28.3%
Daily chance of snow	4.2%

Riverton May Weather Records 1907–2024
Highest temperature	96 °F	May 31, 1984
Lowest temperature	15 °F	May 6, 1909
Highest daily low	60 °F	May 29, 2014
Lowest daily high	30 °F	May 1, 1967
Hottest average high temperature	79.8 °F	1934
Coldest average high temperature	60.0 °F	2019
Most daily precipitation	3.5 inches	May 8, 1921
Most monthly precipitation	6.2 inches	1921
Most daily snow	10.5 inches	May 12, 2010
Most monthly snow	13.6 inches	2010

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	63.3	34.8	85	15
May 2	63.8	35.2	87	20
May 3	64.2	35.6	88	19
May 4	64.5	36.0	89	22
May 5	65.0	36.3	86	20
May 6	65.3	36.7	88	15
May 7	65.7	37.1	88	23
May 8	66.0	37.4	86	24
May 9	66.2	37.7	85	20
May 10	66.5	38.0	84	22
May 11	66.8	38.3	87	20
May 12	67.1	38.7	89	21
May 13	67.5	39.0	88	25
May 14	67.8	39.4	91	23
May 15	68.3	39.8	88	26
May 16	68.8	40.1	90	25
May 17	69.2	40.6	90	24
May 18	69.6	40.9	88	27
May 19	70.0	41.2	90	25
May 20	70.4	41.5	92	25
May 21	70.6	41.8	94	28
May 22	71.0	42.1	88	27
May 23	71.4	42.5	88	27
May 24	71.9	42.8	89	29
May 25	72.3	43.1	89	29
May 26	72.7	43.4	89	26
May 27	73.2	43.7	90	29
May 28	73.5	44.0	90	28
May 29	73.8	44.3	93	25
May 30	74.1	44.5	94	30
May 31	74.3	44.7	96	29

Weather Station Details

Years	Station	Coordinates
1907–2024	Riverton	location