Salmon May Weather

Averages and records for weather in Salmon, Idaho in the month of May.
Typical Salmon May Weather
1991–2020
Average daily high 68.9 °F
Average daily low 40.0 °F
Average monthly precipitation 1.3 inches
Average monthly snow 0.1 inches
Daily chance of precipitation 31.7%
Daily chance of snow 0.22%
Salmon May Weather Records
1967–2024
Highest temperature 96 °F May 29, 2003
Lowest temperature 19 °F May 2, 2019
Highest daily low 59 °F May 30, 2003
Lowest daily high 41 °F May 18, 2017
Hottest average high temperature 78.7 °F 1992
Coldest average high temperature 59.9 °F 2010
Most daily precipitation 1.1 inches May 6, 1995
Most monthly precipitation 3.7 inches 1980
Most daily snow 1.8 inches May 3, 1996
Most monthly snow 2.1 inches 1996
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 64.6 35.6 86 19
May 2 65.0 35.9 87 19
May 3 65.3 36.2 86 24
May 4 65.7 36.5 84 26
May 5 65.9 36.8 86 20
May 6 66.3 37.1 88 23
May 7 66.4 37.5 90 25
May 8 66.6 37.7 90 23
May 9 66.9 38.0 87 22
May 10 67.2 38.3 83 22
May 11 67.5 38.5 89 24
May 12 67.8 38.9 89 26
May 13 68.1 39.2 88 26
May 14 68.4 39.5 88 25
May 15 68.7 39.8 87 30
May 16 69.0 40.1 90 26
May 17 69.3 40.4 89 27
May 18 69.7 40.7 89 27
May 19 69.9 41.1 92 28
May 20 70.2 41.4 85 28
May 21 70.4 41.7 89 29
May 22 70.7 41.9 88 30
May 23 71.0 42.2 89 28
May 24 71.2 42.4 90 31
May 25 71.4 42.7 90 26
May 26 71.6 42.9 93 25
May 27 71.8 43.1 95 31
May 28 71.8 43.3 95 32
May 29 71.9 43.5 96 32
May 30 72.1 43.7 95 29
May 31 72.3 43.8 93 29
Weather Station Details
Years Station Coordinates
1967–2024 Salmon KSRA location