<Tr> <Th> Average high ° F (° C) </Th> <Td> 52.4 (11.3) </Td> <Td> 56.6 (13.7) </Td> <Td> 64.5 (18.1) </Td> <Td> 72.8 (22.7) </Td> <Td> 80.2 (26.8) </Td> <Td> 87.5 (30.8) </Td> <Td> 90.3 (32.4) </Td> <Td> 88.6 (31.4) </Td> <Td> 82.2 (27.9) </Td> <Td> 72.8 (22.7) </Td> <Td> 63.5 (17.5) </Td> <Td> 54.1 (12.3) </Td> <Td> 72.1 (22.3) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 32.0 (0) </Td> <Td> 34.9 (1.6) </Td> <Td> 41.2 (5.1) </Td> <Td> 48.3 (9.1) </Td> <Td> 57.2 (14) </Td> <Td> 65.8 (18.8) </Td> <Td> 69.4 (20.8) </Td> <Td> 68.7 (20.4) </Td> <Td> 61.8 (16.6) </Td> <Td> 50.4 (10.2) </Td> <Td> 41.3 (5.2) </Td> <Td> 34.0 (1.1) </Td> <Td> 50.4 (10.2) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 14.6 (− 9.7) </Td> <Td> 19.0 (− 7.2) </Td> <Td> 24.2 (− 4.3) </Td> <Td> 32.6 (0.3) </Td> <Td> 42.7 (5.9) </Td> <Td> 55.0 (12.8) </Td> <Td> 61.7 (16.5) </Td> <Td> 60.7 (15.9) </Td> <Td> 47.9 (8.8) </Td> <Td> 34.1 (1.2) </Td> <Td> 26.0 (− 3.3) </Td> <Td> 18.1 (− 7.7) </Td> <Td> 11.8 (− 11.2) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> − 6 (− 21) </Td> <Td> − 5 (− 21) </Td> <Td> 11 (− 12) </Td> <Td> 22 (− 6) </Td> <Td> 27 (− 3) </Td> <Td> 40 (4) </Td> <Td> 53 (12) </Td> <Td> 50 (10) </Td> <Td> 32 (0) </Td> <Td> 25 (− 4) </Td> <Td> 11 (− 12) </Td> <Td> (− 16) </Td> <Td> − 6 (− 21) </Td> </Tr>

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