Idaho Falls August 20 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of August 20.
August 20 All-Time Records
1948–2024
Highest temperature 94 °F 2019
Lowest temperature 34 °F 1964
Lowest daily high 60 °F 1968
Highest daily low 62 °F 1981
Most precipitation 0.54 inches 1968
August 20 Average Weather
1991–2020 1
Average high 84.8 °F
Average low 47.1 °F
Chance precipitation 14.6%
Idaho Falls August 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 70 61 0.47 n/a
2022 88 57 0.00 n/a
2021 71 47 0.05 n/a
2020 88 52 0.00 n/a
2019 94 46 0.00 n/a
2018 82 45 0.00 n/a
2017 84 47 0.00 n/a
2016 84 39 0.00 n/a
2015 84 44 0.00 n/a
2014 82 49 0.05 n/a
2013 n/a n/a n/a n/a
2012 86 57 0.02 n/a
2011 92 44 0.00 n/a
2010 90 52 0.00 n/a
2009 90 46 0.00 n/a
2008 83 53 0.00 n/a
2007 80 52 0.00 n/a
2006 89 43 0.00 n/a
2005 87 42 0.00 n/a
2004 80 51 0.00 n/a
2003 92 48 0.00 n/a
2002 82 48 0.00 n/a
2001 87 46 0.00 n/a
2000 79 46 0.00 n/a
1999 91 45 0.00 n/a
1998 89 47 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 83 52 0.04 0.0
1992 90 50 0.00 0.0
1991 90 48 0.00 0.0
1990 78 51 0.15 0.0
1989 75 49 0.04 0.0
1988 89 52 0.00 0.0
1987 88 57 0.00 0.0
1986 88 49 0.00 0.0
1985 85 43 0.00 0.0
1984 78 52 0.00 0.0
1983 78 57 0.04 0.0
1982 93 50 0.00 0.0
1981 85 62 0.00 0.0
1980 72 39 0.00 0.0
1979 72 44 0.25 0.0
1978 86 39 0.00 0.0
1977 91 51 0.00 0.0
1976 85 47 0.00 0.0
1975 80 44 0.00 0.0
1974 62 41 0.05 0.0
1973 91 60 0.07 0.0
1972 83 48 0.00 0.0
1971 92 47 0.00 0.0
1970 88 50 0.00 0.0
1969 91 52 0.00 0.0
1968 60 50 0.54 0.0
1967 91 48 0.00 0.0
1966 71 46 0.00 0.0
1965 78 46 0.00 0.0
1964 68 34 0.00 0.0
1963 83 50 0.00 0.0
1962 88 47 0.00 0.0
1961 83 61 0.13 0.0
1960 93 48 0.00 0.0
1959 73 50 0.38 0.0
1958 88 51 0.00 0.0
1957 90 48 0.00 0.0
1956 87 48 0.00 0.0
1955 87 53 0.00 0.0
1954 69 51 0.01 0.0
1953 88 49 0.00 0.0
1952 83 49 0.00 0.0
1951 81 57 0.00 0.0
1950 82 48 0.00 0.0
1949 90 43 0.00 0.0
1948 74 43 0.00 0.0
What's the all-time high for Idaho Falls on 8/20?
For the date of Aug 20, the highest temperature ever reached in Idaho Falls history is 94 °F which happened in 2019.
Highest Temperatures in Idaho Falls on August 20
Rank Temperature Year
1 94 °F 2019
2 93 °F 1982
2 93 °F 1960
4 92 °F 1971
4 92 °F 2011
4 92 °F 2003
7 91 °F 1999
7 91 °F 1967
7 91 °F 1969
7 91 °F 1973
7 91 °F 1977
What's the all-time low for Idaho Falls on 8/20?
For the date of Aug 20, the lowest temperature ever reached in Idaho Falls history is 34 °F which happened in 1964.
Lowest Temperatures in Idaho Falls on August 20
Rank Temperature Year
1 34 °F 1964
2 39 °F 2016
2 39 °F 1978
2 39 °F 1980
5 41 °F 1974
6 42 °F 2005
7 43 °F 1949
7 43 °F 2006
7 43 °F 1985
7 43 °F 1948
Lowest High Temperatures in Idaho Falls on August 20
Rank Temperature Year
1 60 °F 1968
2 62 °F 1974
3 68 °F 1964
4 69 °F 1954
5 70 °F 2023
6 71 °F 1966
6 71 °F 2021
8 72 °F 1980
8 72 °F 1979
10 73 °F 1959
What's the most it has ever rained in Idaho Falls on 8/20?
For the date of Aug 20, the most precipitation ever recorded in Idaho Falls history is 0.54 inches which happened in 1968.
All-Time Most Precipitation in Idaho Falls on August 20
Rank Precipitation Year
1 0.54 inches 1968
2 0.47 inches 2023
3 0.38 inches 1959
4 0.25 inches 1979
5 0.15 inches 1990
6 0.13 inches 1961
7 0.07 inches 1973
8 0.05 inches 2021
8 0.05 inches 2014
8 0.05 inches 1974
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location