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.
1 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.eptember has an average of one to two days per year with a maximum temperature of 90 F or higher. The average number of days per year with a minimum temperature of 32 F or lower varies from 90 to 100 days for coastal locations to 100 to 110 days at inland points. Temperatures of 0 F or lower occur in the winter months.