SAN FRANCISCO INTERNATIONAL AP, CA

Total of Precipitation (Inches)

(047769)

File last updated on April 12, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1945-----z-----z-----z-----z-----z-----z0.01 0.00 0.03 2.04a2.38 6.61 11.07f
19460.92a1.64 1.94 0.15 0.22 0.00 0.15 0.00h0.01a0.09e2.00 1.67a8.79a
19470.73 1.75m2.98 0.13 0.26 0.48 0.00a0.00 0.00a1.65f0.94 1.67b7.19b
19480.31 1.59 2.62 2.77 0.35 0.05 0.00 0.00 0.05 0.31 0.27 4.07 12.39
19491.24 2.64 4.28 0.00 0.46 0.00 0.02 0.08 0.02 0.06 1.51 2.36 12.67
19506.28 2.61 1.63 0.98 0.20 0.07 0.00 0.00 0.11 1.98 2.90 4.77 21.53
19512.98 1.80 1.31 0.66 0.45 0.01 0.00 0.09 0.00 0.64 2.56 7.05 17.55
19528.95 1.57 4.62 0.48 0.24 0.18 0.00 0.00 0.00 0.08 2.00 9.34 27.46
19533.04 0.00 1.34 1.66 0.22 0.34 0.00 0.03 0.00 0.24 1.92 0.41 9.20
19543.07 2.36 4.37 1.03 0.07 0.15 0.01 0.01 0.00 0.04 1.98 4.24 17.33
19553.64 1.51 0.20 1.54 0.09 0.00 0.01 0.00 0.00 0.01 2.05 12.30 21.35
19568.78 3.12 0.15 1.15 0.49 0.00 0.00 0.00 0.26 1.16 0.01 0.48 15.60
19573.36 3.86 2.06 1.58 3.81 0.01 0.00 0.00 1.06 2.87 1.18 4.18 23.97
19584.65 9.52 9.01 6.36 0.33 0.35 0.00 0.00 0.05 0.10 0.15 1.77 32.29
19594.04 4.66 0.30 0.37 0.04 0.00 0.00 0.00 2.30 0.00 0.00 1.97 13.68
19604.49 4.38 1.17 0.73 0.54 0.00 0.00 0.00 0.00 0.28 4.15 1.16 16.90
19612.63 1.18 3.39 1.25 0.60 0.10 0.00 0.05 0.41 0.03 4.37 1.82 15.83
19621.70 8.48 2.98 0.34 0.00 0.00 0.00 0.03 0.09 7.30 0.36 2.97 24.25
19634.47 2.03 3.94 3.70 0.50 0.00 0.00 0.00 0.07 1.34 3.29 0.55 19.89
19644.38 0.27 1.95 0.01 0.32 0.60 0.00 0.01 0.00 1.26 3.32 5.42 17.54
19654.37 0.91 1.76 3.47 0.00 0.00 0.00 0.29 0.00 0.00 5.40 5.02 21.22
19662.70 3.18 0.59 0.40 0.12 0.04 0.03 0.09 0.08 0.00 4.79 3.96 15.98
196710.43 0.09 5.04 5.31 0.26 0.86 0.00 0.00 0.01 0.48 1.29 3.50 27.27
19685.25 1.44 3.03 0.55 0.28 0.00 0.00 0.06 0.00 0.45 2.47 4.49 18.02
19698.92 8.62 1.34 1.87 0.00 0.06 0.00 0.00 0.02 1.96 0.69 4.59 28.07
19708.33 2.18 1.22 0.22 0.01 0.36 0.00 0.00 0.00 0.75 6.41 6.21 25.69
19711.27 0.26 2.68 0.77 0.25 0.00 0.00 0.00 0.11 0.03 0.99 3.44 9.80
19721.09 1.35 0.18 1.20 0.00 0.06 0.00 0.00 0.30 5.24 5.15 2.40 16.97
19738.32 6.82 2.93 0.11 0.07 0.00 0.00 0.00 0.04 1.60 7.94 3.55 31.38
19743.21 1.70 4.21 2.32 0.00 0.14 0.23 0.00 0.00 0.93 0.50 2.36 15.60
19752.60 3.94 5.91 1.66 0.02 0.04 0.13 0.21 0.00 2.27 0.26 0.21 17.25
19760.37 2.13 1.22 0.92 0.00 0.01 0.00 0.66 0.30 0.34 1.37 2.70 10.02
19772.22 1.04 2.01 0.00 0.41 0.00 0.35 0.00 0.47 0.15 2.20 3.69 12.54
19788.90 4.92 4.90 4.50 0.02 0.00 0.00 0.00 0.26 0.00 1.67 0.64 25.81
19796.61 5.87 2.74 0.69 0.13 0.00 0.09 0.00 0.00 2.20 1.94 4.30 24.57
19804.85 7.62 2.65 0.90 0.24 0.03 0.10 0.00 0.00 0.10 0.12 1.73 18.34
19815.92 2.21 3.60 0.24 0.07 0.00 0.00 0.00 0.28 2.35 4.89 3.91 23.47
19828.81 2.82 7.63 3.25 0.00 0.06 0.00 0.00 0.96 1.95 5.34 3.99 34.81
19836.83 6.64 8.50 3.11 0.32 0.00 0.01 0.00 0.57 0.10 6.03 6.23 38.34
19840.46 1.47 1.36 0.68 0.00 0.03 0.00 0.11 0.05 1.96 6.12 1.89 14.13
19850.74 2.35 3.30 0.12 0.05 0.29 0.03 0.02 0.18 0.69 3.19 1.61 12.57
19864.04 8.09 5.84 0.39 0.15 0.00 0.01 0.00 0.47 0.02 0.06 1.66 20.73
19872.80 3.52 1.98 0.16 0.06 0.00 0.00 0.00 0.00 0.93 1.64 4.51 15.60
19883.92 0.38 0.05 2.02 0.29 0.60 0.00 0.00 0.03 0.42 2.31 3.65 13.67
19891.25 1.28 4.00 0.78 0.04 0.01 0.00 0.00 1.24 1.40 1.34 0.01 11.35
19903.06 2.28 0.79 0.20 1.55 0.00 0.01 0.00 0.20 0.19 0.28 1.79 10.35
19910.24 3.76 6.07 0.61 0.21 0.11 0.00 0.27 0.04 1.73 0.23 2.70 15.97
19922.04 6.44 4.12 0.25 0.00 0.39 0.00 0.14 0.00 1.12 0.15 6.04 20.69
199311.26 4.68 2.34 0.41 0.55 0.16 0.00 0.00 0.00 0.45 1.47 2.19 23.51
19942.50 5.26 0.24 1.12 1.52 0.03 0.00 0.00 0.10 0.33 5.73 2.49 19.32
19958.89 0.38 8.75 1.41 0.93 0.60 0.00 0.00 0.00 0.03 0.02 6.41 27.42
19966.92 6.03 2.89 1.40 1.24 0.00 0.00 0.00 0.00 0.76 2.56 6.97 28.77
19977.52 0.31 0.25 0.30 0.21 0.24 0.00 0.60 0.00 0.68 6.41 3.87 20.39
19988.20 13.64 2.05 2.24 2.37 0.03 0.00 0.00 0.09 0.75 4.57 1.39 35.33
19992.96 4.59 2.80 2.18 0.10 0.18 0.00 0.06 0.27 0.46 1.47 0.43 15.50
20005.83 8.46 1.74 1.30 0.53 0.14 0.00 0.01 0.07 2.14 0.91 0.44 21.57
20013.87 6.12 1.02 1.56 0.00 0.10 0.00 0.00 0.11 0.31 4.51 8.54 26.14
20021.38 1.50 2.13 0.36 0.48 0.00 0.00 0.00 0.00 0.00 2.94 10.75 19.54
20031.43 2.45 1.17 4.42 0.63 0.00 0.00 0.00 0.00 0.00 2.17 6.41 18.68
20043.02 4.57 0.67 0.10 0.07 0.00 0.00 0.00 0.04 3.19 1.22 6.42 19.30
20054.27 5.10 3.74 1.70 1.15 0.30 0.00 0.00 0.08 0.08 1.23 9.34 26.99
20062.45 2.30 6.13 4.01 0.37 0.00 0.00 0.00 0.00 0.33 1.64 3.37 20.60
20070.65 4.14 0.27 1.14 0.09 0.00 0.01 0.00 0.15 1.97 0.58 2.65 11.65
20087.83 2.04 0.23 0.03 0.00 0.00 0.00 0.01 0.00 0.32 1.82 2.36 14.64
20090.69 6.40 2.35 0.27 0.36 0.04 0.00 0.00 0.27 2.96 0.20 3.07 16.61
20105.97 2.70 2.78 2.75 0.69 0.00 0.00 0.00 0.01 0.84 2.41 6.00 24.15
20110.94 4.79 5.70 0.33 0.47 1.49 0.00 0.00 0.01 1.18 1.55 0.13 16.59
20122.16 0.66 4.76 2.79 0.00 0.09 0.00 0.00 0.00 0.70 4.06 6.24 21.46
20130.20 0.67 0.49 0.47 0.01 0.05 0.00 0.00 0.23 0.00 0.91 0.35 3.38
20140.01 3.76 1.93 1.61 0.00 0.00 0.00 0.00 0.42 0.31 1.99 10.66 20.69
20150.00 2.01 0.06 1.28 0.02 0.26 0.00 0.00 0.02 0.00 1.42 3.37 8.44
20165.58 0.85 5.14 0.82 0.05 0.00 0.00 0.00 0.00 2.78 1.54 4.63 21.39
20179.33 7.43 2.96 2.20 0.00 0.05 0.00 0.00 0.22 0.21 2.77 0.07 25.24
20184.85 0.39 3.32 2.24 0.01 0.00 0.00 0.00 0.00 0.16 3.07 1.65 15.69
20194.57 7.19 4.47 0.20 2.00 0.00 0.00 0.00 0.06 0.00 1.29 3.71 23.49
20201.18 0.00 1.32 1.36 0.25 0.00 0.00 0.05 0.00 0.00 0.31 1.39 5.86
20212.92 1.25 1.38 0.00 0.00 0.00 0.00 0.00 0.00 5.84 0.63 9.81 21.83
20220.42 0.01 0.44 0.97 0.00 0.05 0.00 0.01 0.27 0.01 1.58 9.66 13.42
20239.31 3.40 6.60 0.10 0.72 0.01 0.00 0.03 0.03 0.00 1.42 3.91 25.53
20245.04 4.60 3.44 0.50s-----z-----z-----z-----z-----z-----z-----z-----z13.08i
Period of Record Statistics
MEAN4.07 3.39 2.83 1.32 0.37 0.12 0.02 0.04 0.16 0.97 2.23 3.85 19.51
S.D.2.96 2.73 2.15 1.33 0.60 0.23 0.05 0.11 0.34 1.36 1.85 2.82 6.83
SKEW0.56 1.10 0.93 1.57 3.39 3.44 4.57 4.26 4.13 2.43 1.01 0.93 0.32
MAX11.26 13.64 9.01 6.36 3.81 1.49 0.35 0.66 2.30 7.30 7.94 12.30 38.34
MIN0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 3.38
YRS79 78 79 78 78 78 79 78 79 78 79 79 76