Idaho Falls April 21 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of April 21.
April 21 All-Time Records
1948–2024
Highest temperature 78 °F 2012
Lowest temperature 16 °F 1982
Lowest daily high 36 °F 1963
Highest daily low 49 °F 1989
Most precipitation 0.23 inches 1985
April 21 Average Weather
1991–2020 1
Average high 59.6 °F
Average low 32.6 °F
Chance precipitation 27.2%
Idaho Falls April 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 46 32 0.22 n/a
2022 61 32 0.00 n/a
2021 57 22 0.00 n/a
2020 68 29 0.00 n/a
2019 52 43 0.02 n/a
2018 68 31 0.00 n/a
2017 53 33 0.00 n/a
2016 77 35 0.00 n/a
2015 71 33 0.00 n/a
2014 71 28 0.00 n/a
2013 60 35 0.00 n/a
2012 78 35 0.00 n/a
2011 56 33 0.10 n/a
2010 72 46 0.08 n/a
2009 75 34 0.00 n/a
2008 44 18 0.00 n/a
2007 53 27 0.02 n/a
2006 67 28 0.00 n/a
2005 54 32 0.00 n/a
2004 51 34 0.00 n/a
2003 70 34 0.00 n/a
2002 54 27 0.00 n/a
2001 58 26 0.00 n/a
2000 72 35 0.00 n/a
1999 48 29 0.00 n/a
1998 68 28 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 67 30 0.00 0.0
1992 65 34 0.00 0.0
1991 61 41 0.02 0.0
1990 67 46 0.03 0.0
1989 76 49 0.00 0.0
1988 57 40 0.01 0.0
1987 66 25 0.00 0.0
1986 73 39 0.00 0.0
1985 47 31 0.23 2.8
1984 54 36 0.07 0.0
1983 58 39 0.00 0.0
1982 55 16 0.00 0.0
1981 50 37 0.01 0.0
1980 78 44 0.00 0.0
1979 61 25 0.00 0.0
1978 39 31 0.08 0.0
1977 70 34 0.00 0.0
1976 55 35 0.00 0.0
1975 57 28 0.00 0.0
1974 56 31 0.00 0.0
1973 51 28 0.00 0.0
1972 55 35 0.00 0.0
1971 52 34 0.01 0.0
1970 47 20 0.00 0.0
1969 75 31 0.00 0.0
1968 48 21 0.00 0.0
1967 47 25 0.04 0.4
1966 48 31 0.00 0.0
1965 65 45 0.01 0.0
1964 48 36 0.04 0.0
1963 36 28 0.08 2.0
1962 60 38 0.00 0.0
1961 59 25 0.00 0.0
1960 62 42 0.00 0.0
1959 61 28 0.00 0.0
1958 60 26 0.21 0.0
1957 54 34 0.18 0.0
1956 76 34 0.00 0.0
1955 58 31 0.00 0.0
1954 59 27 0.00 0.0
1953 74 39 0.00 0.0
1952 56 36 0.00 0.0
1951 49 24 0.05 0.0
1950 70 43 0.00 0.0
1949 63 37 0.00 0.0
What's the all-time high for Idaho Falls on 4/21?
For the date of Apr 21, the highest temperature ever reached in Idaho Falls history is 78 °F which has happened 2 times, most recently in 2012.
Highest Temperatures in Idaho Falls on April 21
Rank Temperature Year
1 78 °F 2012
1 78 °F 1980
3 77 °F 2016
4 76 °F 1956
4 76 °F 1989
6 75 °F 2009
6 75 °F 1969
8 74 °F 1953
9 73 °F 1986
10 72 °F 2000
10 72 °F 2010
What's the all-time low for Idaho Falls on 4/21?
For the date of Apr 21, the lowest temperature ever reached in Idaho Falls history is 16 °F which happened in 1982.
Lowest Temperatures in Idaho Falls on April 21
Rank Temperature Year
1 16 °F 1982
2 18 °F 2008
3 20 °F 1970
4 21 °F 1968
5 22 °F 2021
6 24 °F 1951
7 25 °F 1987
7 25 °F 1979
7 25 °F 1967
7 25 °F 1961
Lowest High Temperatures in Idaho Falls on April 21
Rank Temperature Year
1 36 °F 1963
2 39 °F 1978
3 44 °F 2008
4 46 °F 2023
5 47 °F 1967
5 47 °F 1985
5 47 °F 1970
8 48 °F 1966
8 48 °F 1999
8 48 °F 1968
8 48 °F 1964
What's the most it has ever rained in Idaho Falls on 4/21?
For the date of Apr 21, the most precipitation ever recorded in Idaho Falls history is 0.23 inches which happened in 1985.
All-Time Most Precipitation in Idaho Falls on April 21
Rank Precipitation Year
1 0.23 inches 1985
2 0.22 inches 2023
3 0.21 inches 1958
4 0.18 inches 1957
5 0.10 inches 2011
6 0.08 inches 2010
6 0.08 inches 1963
6 0.08 inches 1978
9 0.07 inches 1984
10 0.05 inches 1951
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location