San Juan County, WA
Tuesday : a high of 52.9°F averaged over San Juan County, WA, the coldest 29 September day in the county average since 1972, 2nd 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.
- Tuesday 29 September 2026: a low of 44.4°F averaged over San Juan County, WA, the coldest 29 September night in the county average since 2024, tied 16th coldest of 76 (with 2015) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.66 in of precipitation averaged over San Juan County, WA, the wettest 29 September in the county average since 2013, 2nd wettest of 76 (county average from NOAA gridded data, 1951 to 2026).
The month
- September 2026 so far averaged 55.7°F in San Juan County, WA, the coldest 1 to 29 September in the county average since 1972, tied 5th coldest of 76 (with 1971) (county average from NOAA gridded data, 1951 to 2026).
- August 2026 averaged 63.4°F in San Juan County, WA, the warmest August in the county average since 2025, tied 19th warmest of 132 (with 2005, 1986 and 1958) (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 | 52.9 | 44.4 |
| 2025 | 69.7 | 55.8 |
| 2024 | 60.6 | 43.6 |
| 2023 | 57.5 | 45.5 |
| 2022 | 65.2 | 53.4 |
| 2021 | 59.6 | 49.4 |
| 2020 | 74.5 | 48.6 |
| 2019 | 59.7 | 41.4 |
| 2018 | 73.1 | 52.9 |
| 2017 | 71.2 | 51.1 |
| 2016 | 64 | 43.1 |
| 2015 | 63.8 | 44.4 |
| 2014 | 63.6 | 48 |
| 2013 | 57.2 | 48 |
| 2012 | 66.3 | 45.4 |
| 2011 | 65.1 | 46.2 |
| 2010 | 66.7 | 48.3 |
| 2009 | 62.6 | 40.7 |
| 2008 | 66.2 | 46.1 |
| 2007 | 57.7 | 41.6 |
| 2006 | 67.7 | 49 |
| 2005 | 60.5 | 47.1 |
| 2004 | 67.7 | 48.9 |
| 2003 | 73.3 | 52.3 |
| 2002 | 64.9 | 47.3 |
| 2001 | 62.5 | 47.4 |
| 2000 | 66.3 | 47.1 |
| 1999 | 66.9 | 44.9 |
| 1998 | 66.8 | 45.1 |
| 1997 | 65 | 53.4 |
| 1996 | 61.6 | 45.3 |
| 1995 | 62.8 | 48.9 |
| 1994 | 67.5 | 52.5 |
| 1993 | 65.2 | 46 |
| 1992 | 68.2 | 44.9 |
| 1991 | 63.4 | 50.1 |
| 1990 | 68.6 | 51.6 |
| 1989 | 71.2 | 49.3 |
| 1988 | 65.4 | 44.6 |
| 1987 | 68.5 | 45.5 |
| 1986 | 58.6 | 49.2 |
| 1985 | 70.6 | 39.2 |
| 1984 | 65.1 | 41 |
| 1983 | 57.8 | 35.6 |
| 1982 | 62.6 | 41.8 |
| 1981 | 59.3 | 46.4 |
| 1980 | 60.4 | 54.6 |
| 1979 | 63.4 | 46.6 |
| 1978 | 59.5 | 50.2 |
| 1977 | 56.2 | 45.8 |
| 1976 | 70.3 | 49.8 |
| 1975 | 61.3 | 46.6 |
| 1974 | 63.6 | 40.7 |
| 1973 | 68.4 | 47.4 |
| 1972 | 52 | 37.6 |
| 1971 | 54.4 | 43.1 |
| 1970 | 71.2 | 48.2 |
| 1969 | 58.3 | 48.1 |
| 1968 | 64.7 | 43.8 |
| 1967 | 65.7 | 53 |
| 1966 | 66.7 | 52.6 |
| 1965 | 57.7 | 45.4 |
| 1964 | 58.4 | 46.4 |
| 1963 | 69.3 | 53.8 |
| 1962 | 62.9 | 50.7 |
| 1961 | 55.6 | 40.9 |
| 1960 | 66.4 | 46.5 |
| 1959 | 60.2 | 45.3 |
| 1958 | 61.4 | 46.5 |
| 1957 | 71.1 | 49 |
| 1956 | 56.8 | 48.5 |
| 1955 | 59.7 | 46.1 |
| 1954 | 62.7 | 40.2 |
| 1953 | 58.7 | 48.1 |
| 1952 | 67.4 | 52 |
| 1951 | 62.7 | 51.3 |
Nearby
Seattle City, WA 68.9 mi, the nearest city with its own station