Jefferson County, NY
An ordinary day in Jefferson County, NY: was cooler than 47 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.
- High
- 61.5°F
- Coldest since 2022
- 29th coldest of 76
- Low
- 50.8°F
- Warmest since 2024
- 16th warmest of 76
- Precipitation
- 0.02 in
- Wettest since 2022
- 30th wettest of 76
- Normal range, 55.7 to 75.6°F
Every year as a table
Every 29 September low of the county average in Jefferson County, NY since 1951: 50.8°F in 2026; the lowest is 30°F, in 2000.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 61.5 | 50.8 |
| 2025 | 72.8 | 49.3 |
| 2024 | 76.6 | 54 |
| 2023 | 70.5 | 45.2 |
| 2022 | 54.1 | 45.6 |
| 2021 | 60.4 | 41.5 |
| 2020 | 81.4 | 59.2 |
| 2019 | 72.1 | 47.6 |
| 2018 | 69 | 47.9 |
| 2017 | 61.4 | 41.9 |
| 2016 | 69.7 | 49.4 |
| 2015 | 70.5 | 61 |
| 2014 | 76.2 | 51.3 |
| 2013 | 72.2 | 43.8 |
| 2012 | 58.6 | 42.3 |
| 2011 | 75.5 | 60.7 |
| 2010 | 74.9 | 57.3 |
| 2009 | 63.5 | 49.6 |
| 2008 | 63 | 51.3 |
| 2007 | 66.8 | 48 |
| 2006 | 67.2 | 46.1 |
| 2005 | 70.7 | 49.8 |
| 2004 | 67.7 | 46 |
| 2003 | 62.9 | 47 |
| 2002 | 62 | 38.7 |
| 2001 | 53.5 | 39.3 |
| 2000 | 47.1 | 30 |
| 1999 | 80.4 | 61.7 |
| 1998 | 63.2 | 41.5 |
| 1997 | 70.6 | 49.3 |
| 1996 | 67.2 | 49 |
| 1995 | 60 | 34.8 |
| 1994 | 63.6 | 48.1 |
| 1993 | 55.9 | 43.1 |
| 1992 | 67 | 43.3 |
| 1991 | 51.1 | 33.8 |
| 1990 | 74 | 51.2 |
| 1989 | 64.9 | 39.7 |
| 1988 | 54.8 | 34.4 |
| 1987 | 76.4 | 57.5 |
| 1986 | 65.7 | 52.8 |
| 1985 | 65.9 | 46.2 |
| 1984 | 59.4 | 36.5 |
| 1983 | 66.1 | 40.4 |
| 1982 | 59.3 | 47 |
| 1981 | 52.4 | 37.3 |
| 1980 | 56.5 | 30.3 |
| 1979 | 63.1 | 53.9 |
| 1978 | 54.6 | 33.2 |
| 1977 | 58.7 | 41.6 |
| 1976 | 51.5 | 37.9 |
| 1975 | 65.2 | 46.4 |
| 1974 | 72.8 | 56.8 |
| 1973 | 68.3 | 47 |
| 1972 | 65.5 | 38.1 |
| 1971 | 71.9 | 58.6 |
| 1970 | 52.3 | 41.3 |
| 1969 | 58 | 41.1 |
| 1968 | 60.5 | 43.4 |
| 1967 | 68.9 | 50 |
| 1966 | 62.2 | 40.6 |
| 1965 | 56.9 | 38.5 |
| 1964 | 55.1 | 33 |
| 1963 | 53.7 | 39.3 |
| 1962 | 53.5 | 45.2 |
| 1961 | 59.3 | 42.1 |
| 1960 | 71 | 47.9 |
| 1959 | 81.4 | 65.9 |
| 1958 | 56.8 | 38.5 |
| 1957 | 60 | 35.1 |
| 1956 | 68.6 | 35.3 |
| 1955 | 65.8 | 45.1 |
| 1954 | 68.4 | 45.5 |
| 1953 | 62.6 | 43.1 |
| 1952 | 74.5 | 47.8 |
| 1951 | 51.1 | 37 |
The month
September 2026 so far averaged 60.1°F in Jefferson County, NY, the warmest 1 to 29 September in the county average since 2025, 35th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 68.3°F in Jefferson County, NY, the warmest August in the county average since 2022, tied 32nd warmest of 132 (with 2007, 1991 and 1969) (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 61.5°F averaged over Jefferson County, NY, the coldest 29 September day in the county average since 2022, 29th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 50.8°F averaged over Jefferson County, NY, the warmest 29 September night in the county average since 2024, 16th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.02 in of precipitation averaged over Jefferson County, NY, the wettest 29 September in the county average since 2022, tied 30th wettest of 76 (with 2001, 1990, 1965 and 1 other year) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Oswego, NY 44.8 mi, the nearest city with its own station