During some years, the parka has made the most practical costume when out trick-or-treating. Other years, instead of a light sabre or magic wand, an umbrella has proven a valuable accessory. The range of conditions over the years for trick-or-treaters in Sioux Falls, Sioux City and Huron are listed below.
| Sioux Falls | ||||||||||
| Coldest Minimum Temp. | Warmest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 1949 | 10/31 | 57 | 13 | 0 | 1950 | 10/31 | 77 | 40 | 0 | |
| 1993 | 10/31 | 43 | 13 | 0 | 1990 | 10/31 | 76 | 33 | 0 | |
| 1913 | 10/31 | 42 | 15 | 0 | 1933 | 10/31 | 74 | 55 | 0 | |
| 1917 | 10/31 | 38 | 15 | T | 1904 | 10/31 | 73 | 38 | 0 | |
| 2002 | 10/31 | 26 | 15 | 0 | 1999 | 10/31 | 72 | 31 | 0 | |
| 2006 | 10/31 | 35 | 16 | 0 | 1938 | 10/31 | 71 | 51 | 0 | |
| 1996 | 10/31 | 34 | 16 | 0 | 1944 | 10/31 | 71 | 43 | 0 | |
| 1930 | 10/31 | 42 | 17 | 0 | 1915 | 10/31 | 70 | 39 | 0 | |
| 1967 | 10/31 | 59 | 18 | 0 | 1968 | 10/31 | 70 | 33 | 0 | |
| Warmest Minimum Temp. | Coldest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 1936 | 10/31 | 69 | 56 | 0 | 1991 | 10/31 | 26 | 20 | 0.81 | |
| 1964 | 10/31 | 68 | 56 | T | 2002 | 10/31 | 26 | 15 | 0 | |
| 1933 | 10/31 | 74 | 55 | 0 | 1935 | 10/31 | 33 | 21 | T | |
| 1938 | 10/31 | 71 | 51 | 0 | 1995 | 10/31 | 33 | 31 | 0.34 | |
| 1974 | 10/31 | 64 | 50 | 0 | 1896 | 10/31 | 34 | 28 | 0 | |
| 1947 | 10/31 | 50 | 48 | 0.48 | 1996 | 10/31 | 34 | 16 | 0 | |
| 2001 | 10/31 | 68 | 48 | 0 | 2006 | 10/31 | 35 | 16 | 0 | |
| 1983 | 10/31 | 55 | 47 | T | ||||||
| Wettest | Snowiest | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Snowfall | |
| 1929 | 10/31 | 36 | 34 | 1.10 | 1991 | 10/31 | 26 | 20 | 8.8 | |
| 1991 | 10/31 | 26 | 20 | 0.81 | 1995 | 10/31 | 33 | 31 | 3.5 | |
| 1920 | 10/31 | 50 | 32 | 0.70 | 1920 | 10/31 | 50 | 32 | 3.0 | |
| 1992 | 10/31 | 43 | 40 | 0.52 | 1951 | 10/31 | 37 | 20 | 0.1 | |
| 1979 | 10/31 | 50 | 35 | 0.51 | ||||||
| 1943 | 10/31 | 37 | 32 | 0.50 | ||||||
| Sioux City | ||||||||||
| Coldest Minimum Temp. | Warmest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 1993 | 10/31 | 43 | 12 | 0 | 1944 | 10/31 | 81 | 39 | 0 | |
| 2006 | 10/31 | 38 | 13 | 0 | 1950 | 10/31 | 80 | 47 | 0 | |
| 1913 | 10/31 | 42 | 13 | 0 | 1968 | 10/31 | 79 | 46 | 0 | |
| 1930 | 10/31 | 48 | 17 | 0 | 1933 | 10/31 | 78 | 57 | 0 | |
| 1949 | 10/31 | 54 | 17 | 0 | 1990 | 10/31 | 78 | 35 | 0 | |
| 2002 | 10/31 | 29 | 18 | 0 | 1964 | 10/31 | 75 | 57 | T | |
| 1996 | 10/31 | 34 | 18 | 0 | 1914 | 10/31 | 74 | 50 | 0 | |
| 1917 | 10/31 | 42 | 19 | 0 | 1952 | 10/31 | 74 | 36 | 0 | |
| 1893 | 10/31 | 73 | 52 | 0 | ||||||
| Warmest Minimum Temp. | Coldest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 1933 | 10/31 | 78 | 57 | 0 | 1991 | 10/31 | 28 | 23 | 0.57 | |
| 1964 | 10/31 | 75 | 57 | T | 2002 | 10/31 | 29 | 18 | 0 | |
| 1902 | 10/31 | 59 | 52 | 0.39 | 1935 | 10/31 | 33 | 21 | 0.07 | |
| 1893 | 10/31 | 73 | 52 | 0 | 1996 | 10/31 | 34 | 18 | 0 | |
| 1974 | 10/31 | 63 | 52 | T | 1995 | 10/31 | 36 | 32 | 0.06 | |
| 2001 | 10/31 | 70 | 51 | 0 | 1918 | 10/31 | 37 | 30 | 0 | |
| 1914 | 10/31 | 74 | 50 | 0 | 1941 | 10/31 | 37 | 31 | 0.28 | |
| 1938 | 10/31 | 72 | 50 | 0 | 1951 | 10/31 | 38 | 25 | 0 | |
| 2006 | 10/31 | 38 | 13 | 0 | ||||||
| Wettest | Snowiest | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Snowfall | |
| 1892 | 10/31 | 49 | 43 | 1.18 | 1991 | 10/31 | 28 | 23 | 8.8 | |
| 1920 | 10/31 | 46 | 36 | 0.92 | 1995 | 10/31 | 36 | 32 | 0.2 | |
| 1922 | 10/31 | 49 | 46 | 0.59 | 1966 | 10/31 | 53 | 35 | T | |
| 1928 | 10/31 | 42 | 34 | 0.58 | 1970 | 10/31 | 43 | 35 | T | |
| 1991 | 10/31 | 28 | 23 | 0.57 | ||||||
| 1936 | 10/31 | 70 | 45 | 0.55 | ||||||
| Huron | ||||||||||
| Coldest Minimum Temp. | Warmest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 2002 | 10/31 | 27 | 8 | 0 | 1933 | 10/31 | 80 | 56 | 0 | |
| 1935 | 10/31 | 24 | 12 | 0.06 | 1990 | 10/31 | 79 | 37 | 0 | |
| 2006 | 10/31 | 35 | 13 | 0 | 1999 | 10/31 | 76 | 33 | 0 | |
| 1895 | 10/31 | 39 | 14 | 0 | 1944 | 10/31 | 74 | 32 | 0 | |
| 1913 | 10/31 | 46 | 14 | 0 | 1890 | 10/31 | 73 | 22 | 0 | |
| 1930 | 10/31 | 48 | 15 | 0 | 1904 | 10/31 | 73 | 33 | 0 | |
| 1991 | 10/31 | 27 | 15 | 0 | 1914 | 10/31 | 73 | 38 | 0 | |
| 1993 | 10/31 | 48 | 15 | 0 | 1950 | 10/31 | 73 | 38 | 0 | |
| 1964 | 10/31 | 73 | 41 | T | ||||||
| Warmest Minimum Temp. | Coldest Maximum Temp. | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Precip | |
| 1933 | 10/31 | 80 | 56 | 0 | 1935 | 10/31 | 24 | 12 | 0.06 | |
| 1938 | 10/31 | 70 | 50 | 0 | 1991 | 10/31 | 27 | 15 | 0 | |
| 1886 | 10/31 | 61 | 49 | T | 2002 | 10/31 | 27 | 8 | 0 | |
| 2001 | 10/31 | 72 | 47 | 0 | 1896 | 10/31 | 31 | 16 | 0.02 | |
| 1974 | 10/31 | 63 | 45 | 0.01 | 1919 | 10/31 | 32 | 19 | 0 | |
| 1947 | 10/31 | 49 | 44 | 0.15 | 1929 | 10/31 | 33 | 27 | 0.39 | |
| 1983 | 10/31 | 63 | 44 | 0 | 1972 | 10/31 | 33 | 30 | T | |
| 1902 | 10/31 | 57 | 43 | 0.04 | ||||||
| 1998 | 10/31 | 51 | 42 | T | ||||||
| Wettest | Snowiest | |||||||||
| Year | Date | Max | Min | Precip | Year | Date | Max | Min | Snowfall | |
| 2000 | 10/31 | 68 | 37 | 0.91 | 1943 | 10/31 | 34 | 32 | 2.5 | |
| 1979 | 10/31 | 39 | 35 | 0.85 | 1929 | 10/31 | 33 | 27 | 2.0 | |
| 1929 | 10/31 | 33 | 27 | 0.39 | 1995 | 10/31 | 34 | 32 | 1.6 | |
| 1969 | 10/31 | 39 | 36 | 0.36 | 1979 | 10/31 | 39 | 35 | 1.5 | |
| 1992 | 10/31 | 45 | 39 | 0.36 | 1928 | 10/31 | 38 | 23 | 0.8 | |
| 1943 | 10/31 | 34 | 32 | 0.29 | 1935 | 10/31 | 24 | 12 | 0.7 | |
| 1889 | 10/31 | 40 | 33 | 0.20 | 1911 | 10/31 | 40 | 19 | 0.7 | |
| 1920 | 10/31 | 40 | 27 | 0.6 | ||||||