Colusa County, CA
: September 2026 so far averaged 69.4°F in Colusa County, CA, the coldest 1 to 29 September in the county average since 2007, tied 7th coldest of 76 (with 2007) (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 86.3°F
- Coldest since 2025
- 36th coldest of 76
- Low
- 49.6°F
- Coldest since 2019
- 7th coldest of 76
No measurable precipitation in the county average of Colusa County, CA for 25 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 49.7 to 58.7°F
Every year as a table
Every 29 September high of the county average in Colusa County, CA since 1951: 86.3°F in 2026; the highest is 101.7°F, in 2010.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 86.3 | 49.6 |
| 2025 | 72.7 | 56 |
| 2024 | 95.3 | 58.7 |
| 2023 | 83.2 | 52.7 |
| 2022 | 85.8 | 55.2 |
| 2021 | 78.6 | 50.5 |
| 2020 | 97.6 | 62.1 |
| 2019 | 70.5 | 44.9 |
| 2018 | 86.9 | 53.7 |
| 2017 | 89.1 | 55.7 |
| 2016 | 93 | 57.8 |
| 2015 | 89.8 | 54.3 |
| 2014 | 74.7 | 52.8 |
| 2013 | 81.2 | 53 |
| 2012 | 96.5 | 58.6 |
| 2011 | 93.3 | 59.7 |
| 2010 | 101.7 | 59.7 |
| 2009 | 90.3 | 54.5 |
| 2008 | 98.1 | 58.6 |
| 2007 | 71.7 | 44 |
| 2006 | 88.1 | 52.2 |
| 2005 | 95.2 | 53.6 |
| 2004 | 78.2 | 49.7 |
| 2003 | 88.6 | 54.1 |
| 2002 | 77.1 | 49.7 |
| 2001 | 86.6 | 51.6 |
| 2000 | 85.1 | 51.7 |
| 1999 | 91.7 | 56.4 |
| 1998 | 78.1 | 49.6 |
| 1997 | 94.3 | 57.6 |
| 1996 | 91.1 | 56.2 |
| 1995 | 76.9 | 50.3 |
| 1994 | 79.3 | 54.4 |
| 1993 | 94.9 | 55.1 |
| 1992 | 95.8 | 57.9 |
| 1991 | 93.6 | 56.8 |
| 1990 | 95.3 | 59.1 |
| 1989 | 78.3 | 55.5 |
| 1988 | 93.6 | 55.3 |
| 1987 | 95.3 | 57.1 |
| 1986 | 77.1 | 47.6 |
| 1985 | 79.7 | 50.9 |
| 1984 | 89.5 | 55.4 |
| 1983 | 81.3 | 53.9 |
| 1982 | 76.3 | 50.5 |
| 1981 | 75.1 | 50.2 |
| 1980 | 90 | 52 |
| 1979 | 89.1 | 53.3 |
| 1978 | 91.2 | 54.6 |
| 1977 | 72.9 | 58.7 |
| 1976 | 73.8 | 56.7 |
| 1975 | 88.1 | 51.2 |
| 1974 | 84.4 | 50.6 |
| 1973 | 92.6 | 54.4 |
| 1972 | 81.7 | 53 |
| 1971 | 70.6 | 50.3 |
| 1970 | 91.7 | 54.3 |
| 1969 | 88.1 | 60.1 |
| 1968 | 90.1 | 55.5 |
| 1967 | 90.2 | 61 |
| 1966 | 98.2 | 61.7 |
| 1965 | 79.3 | 47.7 |
| 1964 | 78.3 | 47 |
| 1963 | 95.7 | 59.2 |
| 1962 | 73.2 | 51.7 |
| 1961 | 85 | 49.9 |
| 1960 | 88.1 | 53.7 |
| 1959 | 77.5 | 57.5 |
| 1958 | 96.8 | 57.8 |
| 1957 | 67.4 | 54.2 |
| 1956 | 90.8 | 54.9 |
| 1955 | 80.6 | 44.4 |
| 1954 | 84 | 53.6 |
| 1953 | 81.9 | 52.3 |
| 1952 | 94.3 | 58 |
| 1951 | 74.9 | 57.3 |
The month
August 2026 averaged 78.1°F in Colusa County, CA, the warmest August in the county average since 2025, tied 19th warmest of 132 (with 2005, 1971, 1961 and 1 other year) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 86.3°F averaged over Colusa County, CA, the coldest 29 September day in the county average since 2025, 36th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 49.6°F averaged over Colusa County, CA, the coldest 29 September night in the county average since 2019, tied 7th coldest of 76 (with 1998) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Ukiah, CA 51.7 mi, the nearest city with its own station