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F C

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San Francisco, California

Average Temperature Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  °F 57.3 51 53.9 55.2 56.2 57.5 59.5 59.8 60.6 62.7 61.8 57.4 52

Average High Temperature Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  °F 63.6 56.5 59.8 61.6 62.8 63.9 66.1 65.8 66.7 69.8 69.1 63.7 57.3

Average Low Temperature Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  °F 51 45.6 47.9 48.9 49.7 51.1 52.9 53.7 54.5 55.5 54.4 51 46.8

Average Precipitation Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  in 21.2 4.4 3.8 2.8 1.4 0.6 0.2 --- --- 0.2 1.1 2.6 4.1

Average Number of Days With Precipitation Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  Days 67 11 11 10 6 3 1 --- 1 1 4 8 11

Highest Recorded Temperature Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  °F 103 79 81 86 94 101 103 103 98 101 102 86 76

Average Length of Day Years on Record: 30  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  Hours 12.7 10.4 11.3 12.4 13.7 14.7 15.3 15 14 12.8 11.6 10.6 10.1

Average Number of Days Above 90F/32C Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  Days 2.4 --- --- --- 0.1 0.2 0.4 0.2 0.1 0.9 0.4 --- ---

Average Number of Days Below 32F/0C Years on Record: 97  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  Days 0.2 0.1 --- --- --- --- --- --- --- --- --- --- 0.1

Average Number of Rainy Days Years on Record: 57  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  Days 67 11 10 11 6 3 1 --- 1 2 4 8 10

Most Rain Reported in a Month Years on Record: 63  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  in. 43.8 10.7 10.1 9 5.5 4 1.4 0.2 0.5 2.1 5.5 8.2 11.5

Average Morning Relative Humidity Years on Record: 7  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  % 85 81 83 81 82 89 89 92 93 87 81 82 80

Average Evening Relative Humidity Years on Record: 7  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  % 66 63 63 61 61 68 72 74 73 66 60 63 63

Average Wind Speed Years on Record: 28  ANN JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  mph 8.7 6.7 7.5 8.5 9.5 10.4 10.9 11.2 10.5 9.1 7.6 6.3 6.5

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