Idaho Falls July 18 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of July 18.
July 18 All-Time Records
1948–2024
Highest temperature 99 °F 2021
Lowest temperature 38 °F 1993
Lowest daily high 66 °F 1987
Highest daily low 61 °F 1990
Most precipitation 0.29 inches 2004
July 18 Average Weather
1991–2020 1
Average high 87.5 °F
Average low 49.8 °F
Chance precipitation 12.8%
Idaho Falls July 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 92 58 0.00 n/a
2022 91 59 0.00 n/a
2021 99 50 0.00 n/a
2020 86 49 0.00 n/a
2019 85 58 0.00 n/a
2018 93 49 0.00 n/a
2017 93 48 0.00 n/a
2016 92 48 0.00 n/a
2015 75 48 0.00 n/a
2014 92 50 0.00 n/a
2013 n/a n/a n/a n/a
2012 90 50 0.00 n/a
2011 95 55 0.00 n/a
2010 94 50 0.00 n/a
2009 96 48 0.00 n/a
2008 88 45 0.00 n/a
2007 95 53 0.00 n/a
2006 94 52 0.00 n/a
2005 87 42 0.00 n/a
2004 77 57 0.29 n/a
2003 98 53 0.00 n/a
2002 88 56 0.00 n/a
2001 80 51 0.00 n/a
2000 79 48 0.04 n/a
1999 83 44 0.00 n/a
1998 96 54 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 75 38 0.00 0.0
1992 90 48 0.00 0.0
1991 82 55 0.00 0.0
1990 87 61 0.00 0.0
1989 87 46 0.00 0.0
1988 86 46 0.00 0.0
1987 66 46 0.09 0.0
1986 80 50 0.00 0.0
1985 88 51 0.00 0.0
1984 94 52 0.00 0.0
1983 90 46 0.00 0.0
1982 86 50 0.00 0.0
1981 90 51 0.00 0.0
1980 86 42 0.00 0.0
1979 93 49 0.00 0.0
1978 82 45 0.00 0.0
1977 90 60 0.00 0.0
1976 83 58 0.03 0.0
1975 83 48 0.00 0.0
1974 88 60 0.00 0.0
1973 90 54 0.00 0.0
1972 84 55 0.00 0.0
1971 86 61 0.00 0.0
1970 92 58 0.00 0.0
1969 90 51 0.00 0.0
1968 82 45 0.00 0.0
1967 82 50 0.06 0.0
1966 96 55 0.00 0.0
1965 84 54 0.01 0.0
1964 91 48 0.00 0.0
1963 80 52 0.00 0.0
1962 80 55 0.00 0.0
1961 90 47 0.00 0.0
1960 97 52 0.00 0.0
1959 95 54 0.00 0.0
1958 85 53 0.00 0.0
1957 85 51 0.05 0.0
1956 90 54 0.00 0.0
1955 95 59 0.00 0.0
1954 86 60 0.00 0.0
1953 85 55 0.00 0.0
1952 81 46 0.00 0.0
1951 96 58 0.00 0.0
1950 80 47 0.00 0.0
1949 85 42 0.00 0.0
What's the all-time high for Idaho Falls on 7/18?
For the date of Jul 18, the highest temperature ever reached in Idaho Falls history is 99 °F which happened in 2021.
Highest Temperatures in Idaho Falls on July 18
Rank Temperature Year
1 99 °F 2021
2 98 °F 2003
3 97 °F 1960
4 96 °F 2009
4 96 °F 1966
4 96 °F 1998
4 96 °F 1951
8 95 °F 1959
8 95 °F 2007
8 95 °F 1955
8 95 °F 2011
What's the all-time low for Idaho Falls on 7/18?
For the date of Jul 18, the lowest temperature ever reached in Idaho Falls history is 38 °F which happened in 1993.
Lowest Temperatures in Idaho Falls on July 18
Rank Temperature Year
1 38 °F 1993
2 42 °F 1949
2 42 °F 1980
2 42 °F 2005
5 44 °F 1999
6 45 °F 2008
6 45 °F 1978
6 45 °F 1968
9 46 °F 1987
9 46 °F 1988
9 46 °F 1952
9 46 °F 1983
9 46 °F 1989
Lowest High Temperatures in Idaho Falls on July 18
Rank Temperature Year
1 66 °F 1987
2 75 °F 1993
2 75 °F 2015
4 77 °F 2004
5 79 °F 2000
6 80 °F 1986
6 80 °F 1963
6 80 °F 1962
6 80 °F 2001
6 80 °F 1950
What's the most it has ever rained in Idaho Falls on 7/18?
For the date of Jul 18, the most precipitation ever recorded in Idaho Falls history is 0.29 inches which happened in 2004.
All-Time Most Precipitation in Idaho Falls on July 18
Rank Precipitation Year
1 0.29 inches 2004
2 0.09 inches 1987
3 0.06 inches 1967
4 0.05 inches 1957
5 0.04 inches 2000
6 0.03 inches 1976
7 0.01 inches 1965
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location