OLYMPIA AP, WA

Total of Precipitation (Inches)

(456114)

File last updated on March 28, 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
1941-----z-----z-----z-----z2.11l0.93 0.33 2.49 4.26 2.74 5.16 8.25 24.16e
19424.09 3.38 2.63 1.16 1.38 2.59 1.53 0.11 0.10 3.78 11.33 5.31 37.39
19432.65 3.41 6.09 3.08 1.47 1.60 0.53 1.27 0.39 4.59 2.04 3.62 30.74
19444.13 2.82 1.90 3.25 1.33 0.46 0.00 0.50 2.37 2.87 4.81 2.06 26.50
19454.93 6.60 4.09 2.10 2.73 0.08 0.19 0.65 3.19 2.46 7.30 6.88 41.20
19466.30 6.12 4.11 2.73 0.54 4.09 1.06 0.12 2.26 4.92 5.88 5.91 44.04
19475.88 3.87 2.90 2.15 0.28 2.34 2.14 0.47 1.73 6.66 3.79 5.74 37.95
19485.87 7.64 4.69 4.78 5.83 1.35 1.10 2.27 3.92 4.35 10.19 12.11 64.10
19490.69 9.96 3.75 1.52 1.54 0.72 0.51 0.82 1.39 5.24 12.33 10.73 49.20
19509.31 9.66 10.13 3.10 0.79 0.86 1.35 1.47 2.19 9.20 9.49 9.16 66.71
195110.59 11.28 5.89 0.54 1.91 0.05 0.28 0.54 2.83 6.95 7.32 5.80 53.98
19525.65 3.96 3.13 2.25 0.85 1.22 0.10 0.74 0.43 1.55 1.39 8.65 29.92
195319.84 5.12 3.55 2.58 2.72 1.50 0.27 1.63 2.68 6.85 7.79 9.42 63.95
195411.96 8.40 3.13 4.07 1.63 3.36 0.82 1.74 1.89 3.38 7.87 6.99 55.24
19553.01 5.23 4.76 4.19 1.35 0.71 2.68 0.02 1.84 9.31 12.18 12.59 57.87
195610.75 3.93 8.27 0.37 0.30 2.57 0.38 0.88 2.30 9.52 2.81 9.36 51.44
19573.02 5.88 7.43 1.72 1.42 1.78 0.97 0.87 0.66 4.74 4.05 8.91 41.45
19587.87 6.40 2.29 4.39 1.47 1.65 0.00 0.62 1.52 5.41 12.35 8.43 52.40
19598.91 4.53 4.63 4.51 1.45 1.85 0.30 0.70 4.26 3.92 10.36 7.50 52.92
19606.35 5.93 6.12 4.53 3.50 0.59 0.00 1.16 1.21 5.84 11.33 3.89 50.45
19618.69 13.18 6.26 3.29 2.93 1.05 0.80 1.01 0.33 4.97 6.78 8.25 57.54
19623.22 3.72 3.82 4.50 1.81 0.89 0.14 3.17 2.45 6.00 15.51 5.81 51.04
19633.47 6.42 5.10 4.13 1.76 0.63 1.48 0.79 2.16 5.98 10.32 5.55 47.79
196415.13 2.54 4.47 1.58 0.98 2.35 1.07 1.47 2.26 1.79 9.18 9.11 51.93
19659.37 4.93 0.48 3.61 1.89 0.33 0.48 2.05 0.60 3.30 5.84 7.81 40.69
19667.89 3.38 7.28 1.71 1.30 1.28 1.34 0.68 1.95 4.83 8.16 11.53 51.33
196712.21 3.58 4.31 2.88 0.25 1.49 0.02 0.00 1.36 10.08 3.90 5.94 46.02
19689.04 7.83 6.53 3.02 2.57 2.43 0.89 5.45 2.51 6.07 7.96 9.95 64.25
19699.45 3.41 2.90 3.44 2.07 1.68 0.50 0.18 5.23 2.69 3.60 7.24 42.39
197012.48 4.30 3.07 4.76 1.21 0.14 0.16 0.15 3.20 2.71 7.40 14.32 53.90
197111.15 4.41 9.11 2.78 1.50 3.00 0.78 0.71 3.06 4.43 7.59 9.18 57.70
197212.43 11.06 10.01 5.87 0.83 1.07 1.72 0.70 5.04 0.85 4.17 10.66 64.41
19735.66 1.71 3.02 2.23 2.66 2.60 0.05 0.59 2.18 4.60 12.95 11.61 49.86
197410.57 5.68 6.65 4.77 2.65 1.57 2.29 0.07 0.50 1.38 7.44 8.86 52.43
19759.70 5.61 4.32 1.88 1.51 0.72 0.25 3.97 0.00 8.38 9.54 11.42 57.30
19769.40 7.25 4.24 2.79 2.66 1.07 1.26 2.71 1.22 2.64 1.37 3.00 39.61
19771.55 3.70 4.44 1.27 5.21 0.64 0.32 4.17 4.58 3.40 9.30 12.36 50.94
19786.61 4.39 3.45 3.97 2.90 1.54 1.49 1.47 7.59 0.78 6.81 2.95 43.95
19792.67 9.25 2.73 2.21 1.40 1.11 1.58 1.56 2.72 6.20 2.38 13.01 46.82
19806.27 6.18 3.98 4.14 0.93 2.46 0.41 0.36 2.21 1.84 9.77 10.92 49.47
19812.54 9.19 3.86 4.77 1.81 2.96 0.36 0.85 2.44 8.17 7.22 8.60 52.77
19827.79 9.91 4.67 3.89 0.51 1.15 0.54 0.55 1.89 6.12 5.74 10.64 53.40
19839.99 7.09 6.63 2.26 1.51 2.80 3.00 2.18 1.89 1.66 12.84 7.28 59.13
19846.97 5.49 6.42 3.67 5.48 3.74 0.00 0.21 1.76 5.13 12.19 4.97 56.03
19850.29 3.54 4.10 2.65 0.94 2.48 0.37 0.70 2.65 9.86 4.99 2.50 35.07
198612.14 6.84 2.29 2.87 3.20 0.92 1.11 0.01 3.38 4.12 11.09 5.20 53.17
19878.38 3.55 7.14 3.11 2.71 0.32 0.84 0.24 0.29 0.39 3.65 9.14 39.76
19885.18 2.35 5.66 4.94 3.36 2.06 0.42 0.43 1.93 2.26 10.14 5.16 43.89
19895.41 4.19 7.88 2.49 1.99 1.47 0.70 0.55 0.49 2.42 8.50 5.66 41.75
199014.53 8.52 3.54 3.29 2.06 2.86 0.32 1.79 0.03 6.34 15.06 5.05 63.39
19915.35 5.85 4.32 7.80 1.69 1.30 0.33 2.31 0.00 2.20 7.00 4.28 42.43
19929.45 4.19 1.50 5.15 0.19 1.15 0.36 0.82 2.44 2.80 6.82 5.28 40.15
19935.36 0.22 4.95 6.67 4.57 1.77 1.35 0.15 0.00 1.63 2.86 6.02 35.55
19943.80 6.38 4.83 1.82 1.44 1.90 0.29 0.80 1.52 7.65 7.75 11.49 49.67
19955.76 6.10 6.73 2.70 1.16 1.10 1.71 1.22 1.97 5.20 13.56 7.69 54.90
19967.22a11.07 2.65 7.61 3.14 1.14 0.71 0.42 2.21 5.46 6.25 11.40b59.28
19979.22 5.03 11.79 4.80 3.10 2.94 1.18 2.45 4.57 8.18 6.07 5.50 64.83
199810.43 5.04 5.71 1.21 2.11 1.29 0.18 0.00 0.31 3.41 15.28 12.99 57.96
199912.25 15.50 6.95 1.42 1.54 1.84 0.58 0.69 0.12 3.85 11.93 9.97 66.64
20008.13 5.83 5.09 2.40 3.28 2.51 0.06 0.41 1.98 4.27 3.64 3.88 41.48
20013.45 2.60 3.84 3.49 1.92 2.63 0.18 2.28 0.53 3.98 13.31 11.86 50.07
200211.42 4.32 5.24 4.02 2.04 1.59 0.35 0.10 0.59 0.46 3.96 7.39 41.48
20039.60 2.17 7.62 4.72 1.14 0.28 0.14 0.34 1.17 10.72 8.67 5.99 52.56
20047.85 2.95 2.83 1.33 2.00 0.93 0.03 3.93 3.88 4.63 3.76 5.30 39.42
20055.86 1.01 6.17 4.14 4.06 1.64 0.93 0.19 1.76 5.72 7.21 8.88 47.57
200615.86 3.44 3.57 1.89 2.36 1.64 0.15 0.13 0.69 1.43 19.68 9.10 59.94
20076.04 5.52 7.00 2.33 1.22 1.30 1.85 0.67 2.24 4.88 4.04 11.71 48.80
20086.69 4.01 4.83 2.33 0.48 1.41 0.42 1.86 0.27 3.36 9.36 5.05 40.07
20098.58 1.60 5.75 3.13 4.68 0.22 0.15 1.22 2.49 5.32 10.08 4.58 47.80
20106.78 4.53 5.07 3.34 4.14 3.34 0.16 0.51 5.79 6.21 6.20 9.35 55.42
20117.27 4.46 9.00 4.11 4.16 0.67 1.42 0.25 1.62 4.26 8.78 4.69 50.69
20128.72 5.01 8.57 4.35 2.73 2.31 0.90 0.04 0.00 8.07 9.15 9.74 59.59
20133.91 4.04 3.88 4.52 3.21 1.86 0.00 1.84 9.36 2.13 4.69 2.02 41.46
20144.69 8.35 9.17 4.26 3.34 0.88 0.27 1.45 3.07 6.91 6.12 6.00 54.51
20156.68 5.28 5.94 1.92 0.67 0.14 0.15 2.84 0.90 6.68 11.82 14.50 57.52
20168.47 6.67 8.51 1.58 0.15 1.24 0.62 0.40 1.73 12.43 9.28 6.39 57.47
20173.82 9.18 11.35 5.53 3.07 1.33 0.05 0.11 1.24 6.58 12.28 6.90 61.44
20189.87 3.63 2.59 7.24 0.24 0.88 0.07 0.17 2.06 4.34 5.89 8.34 45.32
20194.88 5.16 1.39 2.68 0.90 0.17 1.23 0.80 3.43 5.26 1.74 9.44 37.08
202015.56 3.38 3.35 1.40 2.87 2.24 0.18 0.37 3.33 4.04 9.07 7.32 53.11
202112.22 7.84 3.01 0.92 1.81 3.30 0.00 0.01 3.31 5.39 11.88 9.11 58.80
202210.78 5.37 3.07 5.35 4.33 3.04 0.09 0.05 0.13 3.17 8.18 7.73 51.29
20233.70 3.30 3.78 6.21 0.59 0.81 0.03 0.78 2.30 3.41 6.23 10.72 41.86
20248.82 6.10 3.82e-----z-----z-----z-----z-----z-----z-----z-----z-----z18.74i
Period of Record Statistics
MEAN7.72 5.57 5.08 3.34 2.07 1.57 0.67 1.05 2.12 4.79 8.00 7.90 49.89
S.D.3.70 2.74 2.31 1.59 1.29 0.94 0.66 1.08 1.68 2.52 3.69 2.95 9.03
SKEW0.51 1.04 0.76 0.59 0.81 0.51 1.32 1.71 1.50 0.60 0.41 0.10 -0.24
MAX19.84 15.50 11.79 7.80 5.83 4.09 3.00 5.45 9.36 12.43 19.68 14.50 66.71
MIN0.29 0.22 0.48 0.37 0.15 0.05 0.00 0.00 0.00 0.39 1.37 2.02 26.50
YRS83 83 83 82 82 83 83 83 83 83 83 83 82