Idaho Falls July 21 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of July 21.
July 21 All-Time Records
1948–2024
Highest temperature 99 °F 1960
Lowest temperature 37 °F 1949
Lowest daily high 69 °F 1987
Highest daily low 64 °F 1966
Most precipitation 0.72 inches 1987
July 21 Average Weather
1991–2020 1
Average high 87.9 °F
Average low 49.9 °F
Chance precipitation 13.1%
Idaho Falls July 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 95 52 0.00 n/a
2022 94 52 0.00 n/a
2021 93 54 0.02 n/a
2020 90 47 0.00 n/a
2019 91 44 0.00 n/a
2018 92 62 0.00 n/a
2017 88 46 0.00 n/a
2016 96 44 0.00 n/a
2015 88 46 0.00 n/a
2014 89 63 0.00 n/a
2013 n/a n/a n/a n/a
2012 94 55 0.00 n/a
2011 85 62 0.00 n/a
2010 86 48 0.02 n/a
2009 90 45 0.00 n/a
2008 82 53 0.00 n/a
2007 94 46 0.00 n/a
2006 95 56 0.00 n/a
2005 89 47 0.00 n/a
2004 86 50 0.00 n/a
2003 95 53 0.00 n/a
2002 88 49 0.00 n/a
2001 87 50 0.00 n/a
2000 89 47 0.00 n/a
1999 84 48 0.00 n/a
1998 92 53 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 70 50 0.01 0.0
1992 78 51 0.00 0.0
1991 88 48 0.00 0.0
1990 82 45 0.02 0.0
1989 91 57 0.00 0.0
1988 95 47 0.00 0.0
1987 69 53 0.72 0.0
1986 88 48 0.00 0.0
1985 91 55 0.00 0.0
1984 73 59 0.21 0.0
1983 86 40 0.00 0.0
1982 96 53 0.00 0.0
1981 87 48 0.00 0.0
1980 92 48 0.00 0.0
1979 87 50 0.00 0.0
1978 76 47 0.00 0.0
1977 87 57 0.00 0.0
1976 89 50 0.00 0.0
1975 90 51 0.05 0.0
1974 90 53 0.00 0.0
1973 71 54 0.00 0.0
1972 69 43 0.00 0.0
1971 85 56 0.00 0.0
1970 85 62 0.02 0.0
1969 92 51 0.00 0.0
1968 89 45 0.00 0.0
1967 90 46 0.00 0.0
1966 89 64 0.00 0.0
1965 85 53 0.00 0.0
1964 92 53 0.00 0.0
1963 96 51 0.00 0.0
1962 93 49 0.00 0.0
1961 84 52 0.00 0.0
1960 99 54 0.00 0.0
1959 92 51 0.09 0.0
1958 88 50 0.00 0.0
1957 88 51 0.00 0.0
1956 82 60 0.00 0.0
1955 89 59 0.08 0.0
1954 78 49 0.00 0.0
1953 82 45 0.00 0.0
1952 82 51 0.00 0.0
1951 80 56 0.00 0.0
1950 84 44 0.00 0.0
1949 80 37 0.00 0.0
What's the all-time high for Idaho Falls on 7/21?
For the date of Jul 21, the highest temperature ever reached in Idaho Falls history is 99 °F which happened in 1960.
Highest Temperatures in Idaho Falls on July 21
Rank Temperature Year
1 99 °F 1960
2 96 °F 2016
2 96 °F 1963
2 96 °F 1982
5 95 °F 1988
5 95 °F 2023
5 95 °F 2006
5 95 °F 2003
9 94 °F 2007
9 94 °F 2022
9 94 °F 2012
What's the all-time low for Idaho Falls on 7/21?
For the date of Jul 21, the lowest temperature ever reached in Idaho Falls history is 37 °F which happened in 1949.
Lowest Temperatures in Idaho Falls on July 21
Rank Temperature Year
1 37 °F 1949
2 40 °F 1983
3 43 °F 1972
4 44 °F 1950
4 44 °F 2019
4 44 °F 2016
7 45 °F 1968
7 45 °F 1953
7 45 °F 2009
7 45 °F 1990
Lowest High Temperatures in Idaho Falls on July 21
Rank Temperature Year
1 69 °F 1987
1 69 °F 1972
3 70 °F 1993
4 71 °F 1973
5 73 °F 1984
6 76 °F 1978
7 78 °F 1954
7 78 °F 1992
9 80 °F 1951
9 80 °F 1949
What's the most it has ever rained in Idaho Falls on 7/21?
For the date of Jul 21, the most precipitation ever recorded in Idaho Falls history is 0.72 inches which happened in 1987.
All-Time Most Precipitation in Idaho Falls on July 21
Rank Precipitation Year
1 0.72 inches 1987
2 0.21 inches 1984
3 0.09 inches 1959
4 0.08 inches 1955
5 0.05 inches 1975
6 0.02 inches 2010
6 0.02 inches 1970
6 0.02 inches 2021
6 0.02 inches 1990
10 0.01 inches 1993
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location