Table 1. Polyphenol and antioxidant content in the 100 richest foods (mg per 100 g or mg per 100 ml) Next table | Figures and tables index. Abbreviation: AE, (polyphenols as) aglycone equivalents. Sum of the content of individual polyphenols as determined by chromatography and of proanthocyanidin oligomers as determined by direct-phase high-performance liquid chromatography. Determined by the Folin assay.
Mean annual temperatures across the State range from 54.0 Â° F in northern New Castle County to 58.1 Â° F along the Atlantic coast of southern Delaware. Average annual precipitation is approximately 45â statewide.
Delaware Temperature Records. The climate of Delaware is humid temperate with hot summers and mild winters. The mean annual temperature ranges from 55 F in New Castle County to 56 F over Kent and Sussex counties. Record Coldest year in Delaware - 1904 / Avg temperature 51.35 degrees. 2  Delaware average Summer temperature (June, July, August) - 74.2 F degrees, 16th warmest U.S. summer state. 3  Delaware average Winter temperature (December, January, February) - 36.1 F degrees, 34th coldest U.S. winter state.