Cowlitz County, WA
: September 2026 so far averaged 57.2°F in Cowlitz County, WA, the coldest 1 to 29 September in the county average since 2015, 17th coldest 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
- 64.1°F
- Coldest since 2023
- 28th coldest of 76
- Low
- 43.6°F
- Coldest since 2024
- 21st coldest of 76
- Precipitation
- 0.01 in
- Wettest since 2025
- 30th wettest of 76
- Normal range, 58.4 to 79.3°F
Every year as a table
Every 29 September low of the county average in Cowlitz County, WA since 1951: 43.6°F in 2026; the lowest is 34.6°F, in 1983.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 64.1 | 43.6 |
| 2025 | 69.7 | 50.5 |
| 2024 | 67.7 | 42.4 |
| 2023 | 58.2 | 45.5 |
| 2022 | 63.8 | 50.8 |
| 2021 | 55 | 44.8 |
| 2020 | 79.3 | 50.7 |
| 2019 | 52 | 38 |
| 2018 | 77.6 | 52.5 |
| 2017 | 79.2 | 53.2 |
| 2016 | 68.7 | 44.7 |
| 2015 | 73.1 | 44.5 |
| 2014 | 68.5 | 48.6 |
| 2013 | 58.2 | 47.1 |
| 2012 | 75.5 | 52.9 |
| 2011 | 68.1 | 41.4 |
| 2010 | 71.5 | 52.7 |
| 2009 | 62.1 | 40.9 |
| 2008 | 78.5 | 48.1 |
| 2007 | 54.2 | 40 |
| 2006 | 79.3 | 51.5 |
| 2005 | 71.4 | 46.1 |
| 2004 | 75.5 | 51.7 |
| 2003 | 80.5 | 57.1 |
| 2002 | 71.9 | 46.3 |
| 2001 | 66.1 | 42.6 |
| 2000 | 65.1 | 48.1 |
| 1999 | 71.2 | 41.2 |
| 1998 | 72.3 | 47.2 |
| 1997 | 70.4 | 50.6 |
| 1996 | 74.8 | 50 |
| 1995 | 58.4 | 49.7 |
| 1994 | 70.7 | 53.3 |
| 1993 | 80.9 | 50.1 |
| 1992 | 76.6 | 44.6 |
| 1991 | 62.8 | 46.3 |
| 1990 | 77.1 | 51.6 |
| 1989 | 80.7 | 53.7 |
| 1988 | 73.4 | 44.3 |
| 1987 | 77.6 | 46.1 |
| 1986 | 53.6 | 46.7 |
| 1985 | 66.7 | 39.6 |
| 1984 | 70.2 | 42.4 |
| 1983 | 59.7 | 34.6 |
| 1982 | 56.5 | 38.5 |
| 1981 | 57.5 | 48 |
| 1980 | 65.1 | 49.3 |
| 1979 | 66.6 | 42.8 |
| 1978 | 65.1 | 48.8 |
| 1977 | 60.6 | 48 |
| 1976 | 69.9 | 51.9 |
| 1975 | 61.6 | 45 |
| 1974 | 65 | 38.8 |
| 1973 | 78.5 | 49.5 |
| 1972 | 52.4 | 39.1 |
| 1971 | 50 | 41.7 |
| 1970 | 79.7 | 46.9 |
| 1969 | 65 | 52.8 |
| 1968 | 72.9 | 45.2 |
| 1967 | 77.5 | 48.7 |
| 1966 | 75.2 | 50.9 |
| 1965 | 60.7 | 44 |
| 1964 | 60.5 | 45.6 |
| 1963 | 73.1 | 51.5 |
| 1962 | 56.4 | 47.4 |
| 1961 | 56.4 | 36.3 |
| 1960 | 73.7 | 44.4 |
| 1959 | 58.5 | 41.4 |
| 1958 | 71.6 | 47.3 |
| 1957 | 73.9 | 48.4 |
| 1956 | 58.3 | 46.3 |
| 1955 | 56.8 | 42.7 |
| 1954 | 62.3 | 37.3 |
| 1953 | 56.5 | 42.6 |
| 1952 | 71.8 | 47.6 |
| 1951 | 55.8 | 50.4 |
The month
August 2026 averaged 65.4°F in Cowlitz County, WA, the warmest August in the county average since 2025, 17th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 64.1°F averaged over Cowlitz County, WA, the coldest 29 September day in the county average since 2023, 28th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 43.6°F averaged over Cowlitz County, WA, the coldest 29 September night in the county average since 2024, 21st coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.01 in of precipitation averaged over Cowlitz County, WA, the wettest 29 September in the county average since 2025, tied 30th wettest of 76 (with 1980 and 1978) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Vancouver, WA 39.8 mi, the nearest city with its own station