Walla Walla County, WA
: September 2026 so far averaged 62.1°F in Walla Walla County, WA, the coldest 1 to 29 September in the county average since 2016, tied 20th coldest of 76 (with 2005 and 1999) (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 72.9°F averaged over Walla Walla County, WA, the coldest 29 September day in the county average since 2023, 32nd coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 40.3°F averaged over Walla Walla County, WA, the coldest 29 September night in the county average since 2019, 14th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of Walla Walla County, WA for 3 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- August 2026 averaged 74.1°F in Walla Walla County, WA, the warmest August in the county average since 2025, tied 19th warmest of 132 (with 2023, 2015 and 2001) (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 | 72.9 | 40.3 |
| 2025 | 83 | 51.7 |
| 2024 | 78.9 | 52.5 |
| 2023 | 65.3 | 45.2 |
| 2022 | 80.2 | 53.7 |
| 2021 | 64.9 | 46.5 |
| 2020 | 76.7 | 43.5 |
| 2019 | 50.2 | 39.6 |
| 2018 | 76.9 | 47.1 |
| 2017 | 82 | 48.1 |
| 2016 | 79.6 | 50.3 |
| 2015 | 73.4 | 40.2 |
| 2014 | 75 | 53.4 |
| 2013 | 70.1 | 50.9 |
| 2012 | 79.6 | 51 |
| 2011 | 69.6 | 41.1 |
| 2010 | 84.3 | 52.4 |
| 2009 | 75.6 | 42.5 |
| 2008 | 80.7 | 41.6 |
| 2007 | 62.3 | 42 |
| 2006 | 85.5 | 51.4 |
| 2005 | 80.9 | 49.6 |
| 2004 | 81.3 | 50.3 |
| 2003 | 83.8 | 50.3 |
| 2002 | 73 | 45.6 |
| 2001 | 69.8 | 41.5 |
| 2000 | 77.7 | 47.9 |
| 1999 | 70.6 | 37.7 |
| 1998 | 80.1 | 48.1 |
| 1997 | 78 | 47 |
| 1996 | 86.7 | 51.3 |
| 1995 | 64.5 | 50.2 |
| 1994 | 84.1 | 54.7 |
| 1993 | 81.6 | 47.3 |
| 1992 | 74.1 | 42.4 |
| 1991 | 79.7 | 49.4 |
| 1990 | 83.9 | 49.7 |
| 1989 | 83.2 | 49.6 |
| 1988 | 71.7 | 42.7 |
| 1987 | 75.8 | 41.6 |
| 1986 | 62.5 | 48.3 |
| 1985 | 61.4 | 28.9 |
| 1984 | 64.5 | 33.7 |
| 1983 | 61.2 | 28.3 |
| 1982 | 59.9 | 46.2 |
| 1981 | 66.8 | 46.4 |
| 1980 | 75.2 | 48.2 |
| 1979 | 71.9 | 42.3 |
| 1978 | 72.2 | 46.9 |
| 1977 | 55 | 46.5 |
| 1976 | 85.2 | 51.9 |
| 1975 | 77 | 43.5 |
| 1974 | 76.8 | 39.2 |
| 1973 | 79.6 | 46.9 |
| 1972 | 64.9 | 36.9 |
| 1971 | 59.2 | 38.1 |
| 1970 | 81.1 | 44.2 |
| 1969 | 78.2 | 52.1 |
| 1968 | 73.9 | 43.1 |
| 1967 | 87.8 | 55.4 |
| 1966 | 81.5 | 51.4 |
| 1965 | 67.4 | 42.9 |
| 1964 | 76.6 | 49.1 |
| 1963 | 88.1 | 57.2 |
| 1962 | 63.1 | 45.9 |
| 1961 | 61.7 | 39.9 |
| 1960 | 78.3 | 41.3 |
| 1959 | 60.2 | 40.5 |
| 1958 | 77.8 | 47.1 |
| 1957 | 71.5 | 46.2 |
| 1956 | 70.6 | 44.9 |
| 1955 | 63.1 | 39.3 |
| 1954 | 58.9 | 35 |
| 1953 | 65.6 | 40.1 |
| 1952 | 81.3 | 44.3 |
| 1951 | 71 | 49.2 |
Nearby
Tri-Cities, WA 30.5 mi, the nearest city with its own station