Shelby County, IA
: September 2026 so far averaged 69.1°F in Shelby County, IA, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- Tuesday 29 September 2026: a high of 74.3°F averaged over Shelby County, IA, the warmest 29 September in the county average since 2025, tied 32nd warmest of 76 (with 1997) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 58.8°F averaged over Shelby 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).
- No measurable precipitation in the county average of Shelby County, IA for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- August 2026 averaged 71.9°F in Shelby County, IA, the warmest August in the county average since 2023, tied 61st warmest of 132 (with 1976) (county average from NOAA's monthly county data, 1895 to 2026).
- Days of the month without a value
- 0
Every year on this date
- Above the normal range
- In it
- Below it
- Normal range
- This year and the extreme
Every year as a table
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 74.3 | 58.8 |
| 2025 | 85.4 | 48.3 |
| 2024 | 86.5 | 49.8 |
| 2023 | 82.1 | 48.5 |
| 2022 | 66.6 | 34.9 |
| 2021 | 91.4 | 55.3 |
| 2020 | 60.7 | 40.3 |
| 2019 | 69.3 | 47.8 |
| 2018 | 49 | 41.1 |
| 2017 | 75.7 | 46.6 |
| 2016 | 63.8 | 44.1 |
| 2015 | 83 | 53.9 |
| 2014 | 80.8 | 54.1 |
| 2013 | 65 | 42.4 |
| 2012 | 74.6 | 38.3 |
| 2011 | 82.8 | 46.8 |
| 2010 | 74.6 | 48.4 |
| 2009 | 63.4 | 37.1 |
| 2008 | 75.9 | 51.6 |
| 2007 | 76.7 | 42.4 |
| 2006 | 58.7 | 38.9 |
| 2005 | 60.7 | 32.2 |
| 2004 | 69.3 | 36.9 |
| 2003 | 59.2 | 31.6 |
| 2002 | 74.6 | 50.6 |
| 2001 | 75.3 | 41.5 |
| 2000 | 81.8 | 46.2 |
| 1999 | 65.7 | 35.3 |
| 1998 | 83 | 57 |
| 1997 | 74.3 | 48.6 |
| 1996 | 68.1 | 42.7 |
| 1995 | 82.1 | 52.4 |
| 1994 | 73.9 | 42.2 |
| 1993 | 65.4 | 33.8 |
| 1992 | 58.4 | 33.6 |
| 1991 | 71.8 | 39.2 |
| 1990 | 70.6 | 48.8 |
| 1989 | 77.8 | 44.4 |
| 1988 | 65.2 | 58.6 |
| 1987 | 73.6 | 50.9 |
| 1986 | 80.5 | 57.3 |
| 1985 | 48.8 | 36.9 |
| 1984 | 50.3 | 27.5 |
| 1983 | 81.7 | 62.1 |
| 1982 | 76.7 | 60.4 |
| 1981 | 74.5 | 43.9 |
| 1980 | 76.9 | 50 |
| 1979 | 74.5 | 44.5 |
| 1978 | 70.7 | 47.3 |
| 1977 | 70.9 | 50.3 |
| 1976 | 61.4 | 39 |
| 1975 | 67.4 | 40.2 |
| 1974 | 61.8 | 31.4 |
| 1973 | 66 | 53.9 |
| 1972 | 64.2 | 35.5 |
| 1971 | 80.7 | 51.9 |
| 1970 | 79 | 42.2 |
| 1969 | 75.3 | 52.3 |
| 1968 | 70.6 | 50.1 |
| 1967 | 62 | 30 |
| 1966 | 63.4 | 45.3 |
| 1965 | 75.6 | 51.8 |
| 1964 | 70.7 | 36.2 |
| 1963 | 69.7 | 41.5 |
| 1962 | 67.6 | 39.1 |
| 1961 | 63.2 | 41.6 |
| 1960 | 68 | 47.3 |
| 1959 | 54.5 | 35.4 |
| 1958 | 72.7 | 47.5 |
| 1957 | 73.7 | 40 |
| 1956 | 74.5 | 40 |
| 1955 | 72.1 | 55.8 |
| 1954 | 71 | 53 |
| 1953 | 88 | 62 |
| 1952 | 81.4 | 48.9 |
| 1951 | 60.9 | 40.3 |
Nearby
Omaha, NE 39.8 mi, the nearest city with its own station