Delaware Temperature Records
All-time high and low temperatures recorded in Delaware, with monthly records dating back to 1970.
Key Facts
- Record High: The hottest temperature ever recorded in Delaware is 110°F, set on July 21, 1930.
- Record Low: The coldest temperature ever recorded in Delaware is -17°F, set on January 17, 1893.
- Data Coverage: Based on 57 years of data from 148 NOAA weather stations.
All-Time Record High
110°F
July 21, 1930
Official NOAA Record
All-Time Record Low
-17°F
January 17, 1893
Official NOAA Record
Monthly Temperature Records
| Month | Record High | Record Low |
|---|---|---|
| January | 77°F(2002) | -15°F(1984) |
| February | 86°F(1997) | -15°F(1979) |
| March | 89°F(1998) | 1°F(1984) |
| April | 97°F(1990) | 14°F(1982) |
| May | 98°F(1991) | 25°F(2008) |
| June | 104°F(1984) | 35°F(1993) |
| July | 105°F(1983) | 41°F(1988) |
| August | 103°F(1975) | 42°F(1976) |
| September | 100°F(1983) | 32°F(2006) |
| October | 98°F(2019) | 21°F(1974) |
| November | 85°F(1974) | 9°F(1989) |
| December | 77°F(1991) | -7°F(1983) |
Snow Records
Find the snowiest days on record for any Delaware city
More State Records
Look Up Weather for Any Date
Check the weather on birthdays, anniversaries, or any date since 1970
Explore Delaware Weather History