San Luis Obispo County, CA
An ordinary day in San Luis Obispo County, CA: was cooler than 55 of 75 earlier years in the county average (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 74.9°F averaged over San Luis Obispo County, CA, the coldest 29 September day in the county average since 2025, 21st coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 47.7°F averaged over San Luis Obispo County, CA, the coldest 29 September night in the county average since 2021, 16th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of San Luis Obispo County, CA for 32 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- September 2026 so far averaged 66.7°F in San Luis Obispo County, CA, the coldest 1 to 29 September in the county average since 2023, tied 17th coldest of 76 (with 1996 and 1966) (county average from NOAA gridded data, 1951 to 2026).
- August 2026 averaged 75.3°F in San Luis Obispo County, CA, the warmest August in the county average since 2020, 3rd warmest of 132 (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 | 74.9 | 47.7 |
| 2025 | 70.7 | 56.2 |
| 2024 | 85 | 54.5 |
| 2023 | 78.2 | 49.8 |
| 2022 | 90.1 | 56.8 |
| 2021 | 74.2 | 47.6 |
| 2020 | 93.2 | 59 |
| 2019 | 68.3 | 43.1 |
| 2018 | 83.6 | 52.3 |
| 2017 | 88.4 | 53.7 |
| 2016 | 89.2 | 56.2 |
| 2015 | 85.7 | 57.2 |
| 2014 | 74.3 | 49.7 |
| 2013 | 84.1 | 48.8 |
| 2012 | 84.4 | 54 |
| 2011 | 91.5 | 57.6 |
| 2010 | 100 | 62.7 |
| 2009 | 81.5 | 52.8 |
| 2008 | 87.4 | 55.9 |
| 2007 | 66.6 | 46.7 |
| 2006 | 82.9 | 51.8 |
| 2005 | 89.7 | 54.5 |
| 2004 | 72.6 | 44.2 |
| 2003 | 86.2 | 53.8 |
| 2002 | 65.8 | 49.4 |
| 2001 | 82.8 | 51.5 |
| 2000 | 75.9 | 49.3 |
| 1999 | 91 | 52.6 |
| 1998 | 70.7 | 46.9 |
| 1997 | 95 | 57.4 |
| 1996 | 87.6 | 53.7 |
| 1995 | 73.7 | 47.5 |
| 1994 | 75.1 | 56.4 |
| 1993 | 90.6 | 54 |
| 1992 | 89.9 | 56.1 |
| 1991 | 86 | 51.2 |
| 1990 | 80.7 | 53.8 |
| 1989 | 71.6 | 50.2 |
| 1988 | 89 | 50.9 |
| 1987 | 86.9 | 54.7 |
| 1986 | 75.2 | 45.9 |
| 1985 | 77 | 53.3 |
| 1984 | 92.8 | 57.9 |
| 1983 | 73.2 | 54.6 |
| 1982 | 72.8 | 45.7 |
| 1981 | 74.4 | 53.8 |
| 1980 | 84.7 | 50.6 |
| 1979 | 81.8 | 52.2 |
| 1978 | 92.8 | 56.9 |
| 1977 | 78.8 | 53.1 |
| 1976 | 70.9 | 57.4 |
| 1975 | 79.7 | 50.1 |
| 1974 | 80 | 47.8 |
| 1973 | 90.8 | 51.9 |
| 1972 | 78.8 | 55.3 |
| 1971 | 71.6 | 43 |
| 1970 | 93.6 | 54.4 |
| 1969 | 83.2 | 52 |
| 1968 | 82.2 | 49 |
| 1967 | 81.4 | 60.1 |
| 1966 | 90.5 | 61.4 |
| 1965 | 72 | 46 |
| 1964 | 73.6 | 44.3 |
| 1963 | 92.4 | 59.1 |
| 1962 | 72.6 | 48.2 |
| 1961 | 80.6 | 49.2 |
| 1960 | 77.6 | 48.8 |
| 1959 | 78.2 | 46.6 |
| 1958 | 87.4 | 54 |
| 1957 | 79.6 | 53.3 |
| 1956 | 90.1 | 53.7 |
| 1955 | 73.5 | 45.6 |
| 1954 | 78.9 | 46.7 |
| 1953 | 78.4 | 49.4 |
| 1952 | 84.4 | 53.5 |
| 1951 | 73 | 45.7 |
Nearby
Santa Maria, CA 34.1 mi, the nearest city with its own station