Idaho Falls May 15 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of May 15.
May 15 All-Time Records
1948–2024
Highest temperature 88 °F 1954
Lowest temperature 27 °F 1986
Lowest daily high 40 °F 1955
Highest daily low 51 °F 2023
Most precipitation 0.61 inches 2015
May 15 Average Weather
1991–2020 1
Average high 67.2 °F
Average low 38.6 °F
Chance precipitation 29.7%
Idaho Falls May 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 51 0.00 n/a
2022 77 36 0.00 n/a
2021 66 41 0.00 n/a
2020 62 39 0.02 n/a
2019 77 50 0.00 n/a
2018 71 39 0.03 n/a
2017 62 39 0.00 n/a
2016 62 43 0.20 n/a
2015 61 45 0.61 n/a
2014 75 35 0.00 n/a
2013 80 47 0.00 n/a
2012 87 42 0.00 n/a
2011 76 40 0.00 n/a
2010 70 32 0.00 n/a
2009 63 33 0.00 n/a
2008 70 43 0.00 n/a
2007 75 34 0.00 n/a
2006 83 41 0.00 n/a
2005 70 44 0.05 n/a
2004 65 32 0.09 n/a
2003 74 43 0.00 n/a
2002 65 35 0.00 n/a
2001 61 51 0.07 n/a
2000 72 36 0.00 n/a
1999 42 34 0.44 n/a
1998 59 41 0.00 n/a
1997 n/a n/a n/a n/a
1996 n/a n/a n/a n/a
1995 n/a n/a n/a n/a
1994 n/a n/a n/a n/a
1993 79 50 0.00 0.0
1992 64 50 0.16 0.0
1991 62 44 0.00 0.0
1990 57 33 0.00 0.0
1989 61 47 0.01 0.0
1988 79 37 0.00 0.0
1987 86 45 0.00 0.0
1986 58 27 0.00 0.0
1985 64 41 0.00 0.0
1984 70 40 0.25 0.0
1983 49 30 0.12 0.0
1982 68 36 0.00 0.0
1981 51 42 0.12 0.0
1980 64 39 0.07 0.0
1979 82 42 0.00 0.0
1978 79 39 0.00 0.0
1977 62 40 0.00 0.0
1976 64 38 0.00 0.0
1975 81 43 0.00 0.0
1974 53 32 0.00 0.0
1973 82 36 0.00 0.0
1972 81 49 0.00 0.0
1971 73 38 0.00 0.0
1970 69 34 0.00 0.0
1969 60 44 0.00 0.0
1968 48 34 0.27 0.0
1967 69 43 0.00 0.0
1966 65 31 0.00 0.0
1965 67 37 0.00 0.0
1964 83 48 0.00 0.0
1963 65 37 0.23 0.0
1962 51 40 0.18 0.0
1961 61 31 0.03 0.0
1960 68 28 0.00 0.0
1959 61 41 0.16 0.0
1958 69 42 0.00 0.0
1957 65 43 0.00 0.0
1956 70 34 0.00 0.0
1955 40 29 0.41 8.0
1954 88 42 0.00 0.0
1953 70 38 0.00 0.0
1952 55 37 0.00 0.0
1951 72 36 0.00 0.0
1950 70 44 0.00 0.0
1949 72 45 0.00 0.0
What's the all-time high for Idaho Falls on 5/15?
For the date of May 15, the highest temperature ever reached in Idaho Falls history is 88 °F which happened in 1954.
Highest Temperatures in Idaho Falls on May 15
Rank Temperature Year
1 88 °F 1954
2 87 °F 2012
3 86 °F 1987
4 83 °F 1964
4 83 °F 2006
6 82 °F 1979
6 82 °F 1973
8 81 °F 1972
8 81 °F 1975
10 80 °F 2013
What's the all-time low for Idaho Falls on 5/15?
For the date of May 15, the lowest temperature ever reached in Idaho Falls history is 27 °F which happened in 1986.
Lowest Temperatures in Idaho Falls on May 15
Rank Temperature Year
1 27 °F 1986
2 28 °F 1960
3 29 °F 1955
4 30 °F 1983
5 31 °F 1961
5 31 °F 1966
7 32 °F 2004
7 32 °F 2010
7 32 °F 1974
10 33 °F 2009
10 33 °F 1990
Lowest High Temperatures in Idaho Falls on May 15
Rank Temperature Year
1 40 °F 1955
2 42 °F 1999
3 48 °F 1968
4 49 °F 1983
5 51 °F 1962
5 51 °F 1981
7 53 °F 1974
8 55 °F 1952
9 57 °F 1990
10 58 °F 1986
What's the most it has ever rained in Idaho Falls on 5/15?
For the date of May 15, the most precipitation ever recorded in Idaho Falls history is 0.61 inches which happened in 2015.
All-Time Most Precipitation in Idaho Falls on May 15
Rank Precipitation Year
1 0.61 inches 2015
2 0.44 inches 1999
3 0.41 inches 1955
4 0.27 inches 1968
5 0.25 inches 1984
6 0.23 inches 1963
7 0.20 inches 2016
8 0.18 inches 1962
9 0.16 inches 1992
9 0.16 inches 1959
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location