Idaho Falls December 18 Weather Records

Daily averages and all-time records for weather in Idaho Falls, Idaho for the date of December 18.
December 18 All-Time Records
1948–2024
Highest temperature 46 °F 1962
Lowest temperature -14 °F 2016
Lowest daily high 5 °F 2016
Highest daily low 30 °F 2007
Most precipitation 0.41 inches 1967
December 18 Average Weather
1991–2020 1
Average high 29.9 °F
Average low 12.9 °F
Chance precipitation 30.3%
Idaho Falls December 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 38 18 0.00 n/a
2022 8 -12 0.00 n/a
2021 30 15 0.00 n/a
2020 31 23 0.00 n/a
2019 22 4 0.00 n/a
2018 39 28 0.00 n/a
2017 33 15 0.00 n/a
2016 5 -14 0.00 n/a
2015 29 15 0.01 n/a
2014 34 15 0.00 n/a
2013 n/a n/a n/a n/a
2012 28 11 0.00 n/a
2011 36 10 0.00 n/a
2010 29 9 0.02 n/a
2009 39 21 0.00 n/a
2008 26 -6 0.00 n/a
2007 40 30 0.00 n/a
2006 27 0 0.00 n/a
2005 17 -2 0.00 n/a
2004 33 20 0.00 n/a
2003 36 12 0.00 n/a
2002 24 10 0.02 n/a
2001 27 17 0.00 n/a
2000 26 3 0.00 n/a
1999 38 26 0.00 n/a
1998 27 -1 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 28 4 0.00 0.0
1992 19 3 0.02 0.2
1991 40 15 0.02 0.5
1990 36 21 0.00 0.0
1989 15 -8 0.00 0.0
1988 27 4 0.00 0.0
1987 24 11 0.00 0.0
1986 41 6 0.00 0.0
1985 19 -1 0.00 0.0
1984 9 -10 0.00 0.0
1983 14 -5 0.03 1.5
1982 29 15 0.00 0.0
1981 28 15 0.00 0.0
1980 39 17 0.00 0.0
1979 45 10 0.00 0.0
1978 32 19 0.24 2.4
1977 32 16 0.20 2.0
1976 38 6 0.00 0.0
1975 32 10 0.00 0.0
1974 28 10 0.00 0.0
1973 33 7 0.00 0.0
1972 42 28 0.01 0.0
1971 20 -1 0.00 0.0
1970 23 17 0.05 0.8
1969 42 23 0.00 0.0
1968 22 9 0.05 1.0
1967 27 16 0.41 4.0
1966 33 12 0.00 0.0
1965 23 2 0.00 0.0
1964 12 -12 0.00 0.0
1963 25 14 0.00 0.0
1962 46 23 0.00 0.0
1961 25 16 0.00 0.0
1960 41 24 0.03 0.0
1959 34 22 0.01 0.1
1958 42 19 0.00 0.0
1957 39 23 0.01 0.2
1956 34 22 0.00 0.0
1955 34 24 0.05 0.0
1954 21 -1 0.00 0.0
1953 34 15 0.00 0.0
1952 38 29 0.04 0.0
1951 32 25 0.01 0.2
1950 34 26 0.00 0.0
1949 37 26 0.00 0.0
1948 14 8 0.03 0.6
What's the all-time high for Idaho Falls on 12/18?
For the date of Dec 18, the highest temperature ever reached in Idaho Falls history is 46 °F which happened in 1962.
Highest Temperatures in Idaho Falls on December 18
Rank Temperature Year
1 46 °F 1962
2 45 °F 1979
3 42 °F 1969
3 42 °F 1972
3 42 °F 1958
6 41 °F 1960
6 41 °F 1986
8 40 °F 1991
8 40 °F 2007
10 39 °F 1957
10 39 °F 1980
10 39 °F 2009
10 39 °F 2018
What's the all-time low for Idaho Falls on 12/18?
For the date of Dec 18, the lowest temperature ever reached in Idaho Falls history is -14 °F which happened in 2016.
Lowest Temperatures in Idaho Falls on December 18
Rank Temperature Year
1 -14 °F 2016
2 -12 °F 1964
2 -12 °F 2022
4 -10 °F 1984
5 -8 °F 1989
6 -6 °F 2008
7 -5 °F 1983
8 -2 °F 2005
9 -1 °F 1954
9 -1 °F 1971
9 -1 °F 1998
9 -1 °F 1985
Lowest High Temperatures in Idaho Falls on December 18
Rank Temperature Year
1 5 °F 2016
2 8 °F 2022
3 9 °F 1984
4 12 °F 1964
5 14 °F 1983
5 14 °F 1948
7 15 °F 1989
8 17 °F 2005
9 19 °F 1992
9 19 °F 1985
What's the most it has ever rained in Idaho Falls on 12/18?
For the date of Dec 18, the most precipitation ever recorded in Idaho Falls history is 0.41 inches which happened in 1967.
All-Time Most Precipitation in Idaho Falls on December 18
Rank Precipitation Year
1 0.41 inches 1967
2 0.24 inches 1978
3 0.20 inches 1977
4 0.05 inches 1968
4 0.05 inches 1970
4 0.05 inches 1955
7 0.04 inches 1952
8 0.03 inches 1948
8 0.03 inches 1983
8 0.03 inches 1960
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location