<Tr> <Th> Average high ° C (° F) </Th> <Td> 28.2 (82.8) </Td> <Td> 27.9 (82.2) </Td> <Td> 26.4 (79.5) </Td> <Td> 23.9 (75) </Td> <Td> 20.5 (68.9) </Td> <Td> 17.8 (64) </Td> <Td> 17.3 (63.1) </Td> <Td> 18.9 (66) </Td> <Td> 21.5 (70.7) </Td> <Td> 23.7 (74.7) </Td> <Td> 25.3 (77.5) </Td> <Td> 27.5 (81.5) </Td> <Td> 23.2 (73.8) </Td> </Tr> <Tr> <Th> Average low ° C (° F) </Th> <Td> 17.6 (63.7) </Td> <Td> 17.7 (63.9) </Td> <Td> 15.9 (60.6) </Td> <Td> 12.4 (54.3) </Td> <Td> 9.3 (48.7) </Td> <Td> 6.3 (43.3) </Td> <Td> 4.7 (40.5) </Td> <Td> 5.8 (42.4) </Td> <Td> 8.3 (46.9) </Td> <Td> 11.5 (52.7) </Td> <Td> 13.8 (56.8) </Td> <Td> 16.2 (61.2) </Td> <Td> 11.6 (52.9) </Td> </Tr> <Tr> <Th> Record low ° C (° F) </Th> <Td> 7.8 (46) </Td> <Td> 9.4 (48.9) </Td> <Td> 5.0 (41) </Td> <Td> 3.2 (37.8) </Td> <Td> − 1.5 (29.3) </Td> <Td> − 2.0 (28.4) </Td> <Td> − 5.0 (23) </Td> <Td> − 3.4 (25.9) </Td> <Td> − 1.8 (28.8) </Td> <Td> 3.3 (37.9) </Td> <Td> 4.7 (40.5) </Td> <Td> 7.8 (46) </Td> <Td> − 5.0 (23) </Td> </Tr> <Tr> <Th> Average precipitation mm (inches) </Th> <Td> 97.6 (3.843) </Td> <Td> 94.9 (3.736) </Td> <Td> 101.0 (3.976) </Td> <Td> 85.3 (3.358) </Td> <Td> 68.8 (2.709) </Td> <Td> 71.3 (2.807) </Td> <Td> 40.2 (1.583) </Td> <Td> 55.9 (2.201) </Td> <Td> 45.6 (1.795) </Td> <Td> 61.6 (2.425) </Td> <Td> 78.3 (3.083) </Td> <Td> 67.4 (2.654) </Td> <Td> 867.7 (34.161) </Td> </Tr>

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