Harrison County, IA
Tuesday : a low of 60.5°F averaged over Harrison County, IA, the warmest 29 September night in the county average since 1983, 4th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 73.7°F
- Warmest since 2025
- 35th warmest of 76
- Low
- 60.5°F
- Warmest since 1983
- 4th warmest of 76
No measurable precipitation in the county average of Harrison County, IA for 3 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 35.1 to 54.8°F
Every year as a table
Every 29 September high of the county average in Harrison County, IA since 1951: 73.7°F in 2026; the highest is 92°F, in 2021.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 73.7 | 60.5 |
| 2025 | 86 | 49.2 |
| 2024 | 87.5 | 50.9 |
| 2023 | 84.3 | 50.7 |
| 2022 | 68.8 | 38.4 |
| 2021 | 92 | 57.6 |
| 2020 | 62.4 | 40.9 |
| 2019 | 68.9 | 48.4 |
| 2018 | 49.9 | 42.2 |
| 2017 | 76.2 | 47.4 |
| 2016 | 64.5 | 43.9 |
| 2015 | 82.9 | 54.8 |
| 2014 | 82.2 | 56.3 |
| 2013 | 66.8 | 44.4 |
| 2012 | 76.4 | 38.4 |
| 2011 | 84.5 | 47.6 |
| 2010 | 75.8 | 50.8 |
| 2009 | 64.6 | 38.3 |
| 2008 | 77.9 | 51.9 |
| 2007 | 78 | 44.2 |
| 2006 | 59.3 | 40 |
| 2005 | 62.4 | 33.1 |
| 2004 | 70.4 | 38.5 |
| 2003 | 59.5 | 32.8 |
| 2002 | 73.5 | 52 |
| 2001 | 76.5 | 44.3 |
| 2000 | 82.4 | 45.8 |
| 1999 | 66.5 | 36.4 |
| 1998 | 84.5 | 57.3 |
| 1997 | 74.9 | 49.2 |
| 1996 | 69.7 | 42.5 |
| 1995 | 82.9 | 55.1 |
| 1994 | 74.4 | 42.8 |
| 1993 | 66.5 | 35.1 |
| 1992 | 59.5 | 34.6 |
| 1991 | 74.8 | 40.8 |
| 1990 | 70.6 | 49.6 |
| 1989 | 79.3 | 45 |
| 1988 | 66.1 | 58.6 |
| 1987 | 74.5 | 51 |
| 1986 | 81.4 | 56.4 |
| 1985 | 45.1 | 37.2 |
| 1984 | 51.6 | 27.7 |
| 1983 | 81.6 | 63.9 |
| 1982 | 78.3 | 61.3 |
| 1981 | 74.7 | 45.5 |
| 1980 | 77.6 | 52.1 |
| 1979 | 74.7 | 44.9 |
| 1978 | 73 | 49.1 |
| 1977 | 72.7 | 52.6 |
| 1976 | 62.1 | 38.3 |
| 1975 | 68.2 | 39.8 |
| 1974 | 63.3 | 33.5 |
| 1973 | 66.4 | 54 |
| 1972 | 62.2 | 35.7 |
| 1971 | 80.3 | 52 |
| 1970 | 80.5 | 43.1 |
| 1969 | 76 | 53.3 |
| 1968 | 71 | 51 |
| 1967 | 63.5 | 31 |
| 1966 | 64.5 | 46.9 |
| 1965 | 74 | 51.3 |
| 1964 | 69.9 | 36.8 |
| 1963 | 71 | 42.7 |
| 1962 | 67.1 | 43 |
| 1961 | 64 | 41.2 |
| 1960 | 69.4 | 48.4 |
| 1959 | 55.3 | 37.3 |
| 1958 | 73.6 | 47.7 |
| 1957 | 74.6 | 42.4 |
| 1956 | 73.5 | 42.7 |
| 1955 | 72.3 | 55.1 |
| 1954 | 72.4 | 53.7 |
| 1953 | 87.6 | 64.2 |
| 1952 | 81.7 | 48.5 |
| 1951 | 62.7 | 41.4 |
The month
September 2026 so far averaged 69.9°F in Harrison County, IA, the warmest 1 to 29 September in the county average since 2019, 3rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 73°F in Harrison County, IA, the warmest August in the county average since 2023, tied 53rd warmest of 132 (with 2011) (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 73.7°F averaged over Harrison County, IA, the warmest 29 September in the county average since 2025, 35th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Omaha, NE 26.3 mi, the nearest city with its own station