New Castle County, DE
An ordinary day in New Castle County, DE: was cooler than 58 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 68.6°F averaged over New Castle County, DE, the coldest 29 September day in the county average since 2023, 18th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 59.5°F averaged over New Castle County, DE, the warmest 29 September night in the county average since 2025, 18th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.02 in of precipitation averaged over New Castle County, DE, the wettest 29 September in the county average since 2024, tied 26th wettest of 76 (with 1992 and 1962) (county average from NOAA gridded data, 1951 to 2026).
The month
- September 2026 so far averaged 70.5°F in New Castle County, DE, the warmest 1 to 29 September in the county average since 2019, 11th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- August 2026 averaged 77.5°F in New Castle County, DE, the warmest August in the county average since 2022, 6th 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 | 68.6 | 59.5 |
| 2025 | 82.7 | 62.8 |
| 2024 | 76.7 | 64.4 |
| 2023 | 63.2 | 55.1 |
| 2022 | 68.1 | 48.1 |
| 2021 | 77.8 | 56.6 |
| 2020 | 80.2 | 65.4 |
| 2019 | 84.3 | 61.8 |
| 2018 | 72.8 | 54.7 |
| 2017 | 77.1 | 51 |
| 2016 | 71.6 | 56.6 |
| 2015 | 81 | 63.9 |
| 2014 | 81.1 | 56 |
| 2013 | 73.3 | 51.6 |
| 2012 | 76.8 | 55.9 |
| 2011 | 79.3 | 67.6 |
| 2010 | 79.1 | 58.8 |
| 2009 | 75.7 | 52.1 |
| 2008 | 74.9 | 60.9 |
| 2007 | 79.9 | 56.6 |
| 2006 | 75.9 | 52 |
| 2005 | 76.9 | 52.3 |
| 2004 | 75 | 63.1 |
| 2003 | 69.7 | 52.3 |
| 2002 | 76.2 | 52.6 |
| 2001 | 62.9 | 46.1 |
| 2000 | 68.9 | 43.8 |
| 1999 | 77.2 | 64.2 |
| 1998 | 80.7 | 52.1 |
| 1997 | 72 | 55.6 |
| 1996 | 75 | 54.1 |
| 1995 | 76.2 | 50.3 |
| 1994 | 73.8 | 52.5 |
| 1993 | 67.2 | 46.1 |
| 1992 | 67.4 | 52.8 |
| 1991 | 67 | 41.3 |
| 1990 | 75.7 | 52.7 |
| 1989 | 68 | 42.1 |
| 1988 | 78.1 | 51 |
| 1987 | 81.5 | 54.4 |
| 1986 | 71.6 | 60 |
| 1985 | 70.2 | 47.1 |
| 1984 | 52.3 | 42.5 |
| 1983 | 73.3 | 49 |
| 1982 | 75.3 | 54.7 |
| 1981 | 68 | 41.8 |
| 1980 | 73.7 | 46.5 |
| 1979 | 75.2 | 60.9 |
| 1978 | 71.5 | 38.9 |
| 1977 | 72.4 | 50.4 |
| 1976 | 70.2 | 44.2 |
| 1975 | 71.9 | 46.8 |
| 1974 | 76 | 63 |
| 1973 | 79.9 | 64.3 |
| 1972 | 70.8 | 59.6 |
| 1971 | 75.2 | 58.1 |
| 1970 | 65.8 | 43.7 |
| 1969 | 71.4 | 46 |
| 1968 | 75.5 | 46.3 |
| 1967 | 74.5 | 64 |
| 1966 | 59.1 | 51.2 |
| 1965 | 69.7 | 43.4 |
| 1964 | 58.4 | 48.6 |
| 1963 | 78.4 | 55.7 |
| 1962 | 67.4 | 46.8 |
| 1961 | 73.9 | 44.2 |
| 1960 | 70.1 | 61.8 |
| 1959 | 84.4 | 68 |
| 1958 | 66.4 | 41.6 |
| 1957 | 62.5 | 38.9 |
| 1956 | 61 | 52.2 |
| 1955 | 75.8 | 51.8 |
| 1954 | 84.5 | 58.1 |
| 1953 | 81.6 | 50.4 |
| 1952 | 76.4 | 46.7 |
| 1951 | 67.3 | 39.6 |
Nearby
Wilmington, DE 7.1 mi, the nearest city with its own station