Jefferson County, WA
: September 2026 so far averaged 52.8°F in Jefferson County, WA, the coldest 1 to 29 September in the county average since 1996, tied 13th coldest of 76 (with 1960) (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 58.1°F
- Coldest since 2024
- 30th coldest of 76
- Low
- 40.9°F
- Coldest since 2024
- 23rd coldest of 76
- Precipitation
- 0.56 in
- Wettest since 2021
- 10th wettest of 76
- Normal range, 36.8 to 49.5°F
Every year as a table
Every 29 September high of the county average in Jefferson County, WA since 1951: 58.1°F in 2026; the highest is 75.4°F, in 2017.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 58.1 | 40.9 |
| 2025 | 63.4 | 49.3 |
| 2024 | 58.1 | 39.2 |
| 2023 | 53.1 | 38.3 |
| 2022 | 60 | 47.6 |
| 2021 | 51.5 | 41.9 |
| 2020 | 72 | 47.6 |
| 2019 | 49.9 | 35.5 |
| 2018 | 70.5 | 49.5 |
| 2017 | 75.4 | 51.4 |
| 2016 | 63 | 42 |
| 2015 | 64.9 | 40.8 |
| 2014 | 66.1 | 45.1 |
| 2013 | 51.7 | 42.4 |
| 2012 | 66.4 | 45.7 |
| 2011 | 57.3 | 37.7 |
| 2010 | 63.6 | 46.7 |
| 2009 | 57.1 | 36.8 |
| 2008 | 68.8 | 43.6 |
| 2007 | 50.4 | 36.8 |
| 2006 | 73 | 49 |
| 2005 | 62.5 | 43.7 |
| 2004 | 69 | 48.1 |
| 2003 | 73.4 | 55.4 |
| 2002 | 63.7 | 42.5 |
| 2001 | 53.8 | 39.8 |
| 2000 | 59.3 | 47.6 |
| 1999 | 63.3 | 36.5 |
| 1998 | 65.3 | 43.1 |
| 1997 | 62.6 | 47.5 |
| 1996 | 66.6 | 49.4 |
| 1995 | 54.3 | 42.9 |
| 1994 | 68.9 | 48 |
| 1993 | 72.8 | 49.7 |
| 1992 | 71.1 | 46.3 |
| 1991 | 63.5 | 45.6 |
| 1990 | 67.8 | 47.8 |
| 1989 | 72.3 | 46 |
| 1988 | 64.9 | 41.9 |
| 1987 | 69.7 | 42.6 |
| 1986 | 52.4 | 43.3 |
| 1985 | 65.4 | 39.1 |
| 1984 | 63.5 | 40.5 |
| 1983 | 55.2 | 33.9 |
| 1982 | 53.6 | 36.2 |
| 1981 | 53.3 | 41.3 |
| 1980 | 55.9 | 51 |
| 1979 | 60.7 | 40.8 |
| 1978 | 59.8 | 50 |
| 1977 | 54.4 | 41.5 |
| 1976 | 66.6 | 49.4 |
| 1975 | 56.6 | 42.1 |
| 1974 | 60.4 | 35.3 |
| 1973 | 70.4 | 45.4 |
| 1972 | 49.1 | 39.7 |
| 1971 | 47.9 | 36.2 |
| 1970 | 72.6 | 48.3 |
| 1969 | 57.7 | 47.3 |
| 1968 | 66 | 43.4 |
| 1967 | 66 | 52.6 |
| 1966 | 65 | 48.9 |
| 1965 | 53.7 | 42.3 |
| 1964 | 54.8 | 44.2 |
| 1963 | 71.2 | 47.8 |
| 1962 | 53 | 42.7 |
| 1961 | 50.2 | 36 |
| 1960 | 68.1 | 41.5 |
| 1959 | 53 | 39.2 |
| 1958 | 62.6 | 44.5 |
| 1957 | 68.1 | 45.2 |
| 1956 | 53.2 | 43.4 |
| 1955 | 52 | 39.6 |
| 1954 | 57.2 | 36.9 |
| 1953 | 51.4 | 40.7 |
| 1952 | 64.3 | 48.1 |
| 1951 | 51.2 | 46.6 |
The month
August 2026 averaged 60.5°F in Jefferson County, WA, the warmest August in the county average since 2025, tied 15th warmest of 132 (with 2018 and 1981) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 58.1°F averaged over Jefferson County, WA, the coldest 29 September day in the county average since 2024, tied 30th coldest of 76 (with 2024) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 40.9°F averaged over Jefferson County, WA, the coldest 29 September night in the county average since 2024, 23rd coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.56 in of precipitation averaged over Jefferson County, WA, the wettest 29 September in the county average since 2021, tied 10th wettest of 76 (with 2009) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Quillayute, WA 48.6 mi, the nearest city with its own station