CORVALLIS WATER BUREAU, OR

Maximum of Precipitation (Inches)

(351877)

File last updated on December 17, 2017
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
1936-----z-----z-----z-----z-----z-----z0.17h0.00 0.38 0.10 0.45 1.86 -----z
19372.90 2.71 1.13 3.02 1.67w1.29 0.00 0.46 2.00 1.45 2.12 5.37 5.37w
19381.70 2.40 4.35 1.25 0.22 0.07 0.14 0.00 0.82 0.98 1.79 3.37 4.35
19391.48 2.11 0.99 0.25 0.66 0.41 0.21 0.47 0.30 1.41 0.54 2.83 2.83
19401.53 2.66 3.08 1.29 1.14w0.28 0.23 0.00 1.17 1.32 1.54 2.42 3.08w
19411.99l0.63 0.90 0.92 2.23n0.55 0.00 0.70 1.89 0.45 2.76 3.58g-----z
19422.00 1.94 0.40 0.41 0.61 0.86 0.35 0.11 0.00 0.95 3.37 2.69 3.37
19432.27 3.33 3.99 0.90 0.91 0.29 0.19 0.76 0.19 2.43 1.73 1.50 3.99
19442.29 0.68 1.00 0.90 0.60 0.52 0.18 0.12 0.31 0.95 1.93 1.16 2.29
19451.81 3.06 1.63 1.53 1.10 0.04 0.21 0.15 2.41 0.45 2.90 2.16 3.06
19461.95 2.30 2.53 0.61 0.40 0.90 0.62 0.00 1.18 3.08 3.05 3.05 3.08
19471.14 3.34 1.46 0.59 0.21 0.80 0.79 0.52 0.69 2.81 0.67l1.26 3.34l
19483.75 2.45 1.58 0.99 2.32 0.78 0.50 0.59a0.81a0.64b1.94 2.11a3.75e
19491.46 4.46 0.66 0.56 2.28 0.26a0.23 0.24 0.98a0.54 2.40 1.19 4.46b
19505.11 1.98 1.93a0.61 0.45 0.82 0.10 0.49 0.54 2.51 3.00 1.85 5.11a
19512.76 1.54 1.61 1.05 0.90 0.00 0.29 0.05 0.10 2.09a2.10a3.10 3.10b
19521.89 1.78 0.89 0.40 0.14 1.27a0.00 0.06 0.05 0.36 1.10 2.00 2.00a
19532.30 1.57 1.00 1.10 0.75 0.45 0.00 2.00 0.60 0.79b2.84 2.00 2.84b
19542.00 3.10 1.45 1.60 0.75 0.75 0.27a0.40 1.00 0.92 2.85 2.04 3.10a
19551.00 1.48 2.04 1.14 0.15 0.30 -----z0.00 0.80 1.02 2.04 2.50 -----z
19562.50 2.50 2.00 -----z0.60l0.20 0.07 -----z0.05 2.30 0.50 2.40 -----z
19571.00 2.68 1.62 1.40b1.60 0.74 0.19 0.15 0.78 0.86 1.39 2.52c2.68e
19582.00 1.74 0.80 1.10 0.30 0.45 0.00 -----z0.88 2.00 3.20 1.20 -----z
19593.03 2.50 1.35 0.35 0.80 0.90 -----z-----z0.75 0.60 0.85a1.61 -----z
19601.30 2.60 2.00 1.10 0.80 0.13 0.00 -----z0.52 0.85 3.21 1.66 -----z
19611.45 4.25 1.83 0.78 0.50 0.40 0.32 0.23 0.39 1.52 2.60 2.63 4.25
19621.10 1.35 1.90 2.00 0.50 0.44 0.00 0.50 0.81 -----z2.00 -----z-----z
1963-----z2.50 2.53 0.86 1.68 0.48 0.30 0.14 0.48 1.40 2.06 1.10 -----z
19642.80 1.15 1.30 0.46 0.34 0.38 0.15 0.15 0.24 0.25 1.62 4.34a4.34a
19653.47 0.52 0.68 1.50 0.52 0.20 0.09 0.36 0.00 1.54 1.97 2.78 3.47
19662.90 1.12 4.31 0.54 0.44 0.18 0.18 0.18 0.61 1.04 1.56 1.95 4.31
19672.38 1.10 2.07 0.76 0.40 0.33 0.00 0.00 1.06 2.35 2.20 2.20 2.38
19681.82 2.80 0.85 0.30 1.35 0.92 0.15 1.20 0.63 1.82 1.41 2.80 2.80
19691.65 2.54 1.47 0.38 0.82 0.43 0.00 0.00 1.27 1.00 2.62 4.30 4.30
19702.78 2.06 1.05 1.12c0.57 0.47 0.00 0.00 0.75 1.65 1.93 2.81 2.81c
19712.24 1.52c2.26 2.49 1.76 1.27 0.03 1.08 1.50 1.25 2.20 2.36 2.49c
19723.94 1.75 1.50 1.85 0.93 1.04 0.00 0.47 0.94 0.52 1.56 2.70 3.94
19732.46 1.33 0.84 0.52 0.78 0.62 0.00 0.30 1.06 0.62 3.45 2.98 3.45
19744.42 1.68 2.58 0.83 0.50 0.46 0.97 0.00 0.09 0.09a2.14 2.61 4.42a
19751.87 1.89 2.55 0.90 1.90 0.23 0.30 0.30 0.00 0.92 1.65 3.94 3.94
19761.76 2.90 2.00 0.47 0.34 0.07 0.26 0.40 0.35 1.34 0.75 0.81 2.90
19770.40 1.20 1.85 0.21 0.73 0.41 0.03 0.65 0.40 1.90 1.70 2.75 2.75
19782.00 1.65 1.21 1.45 1.50 0.11 0.32 0.43 0.78 0.46 1.40 1.52 2.00
19791.85 2.50 1.00 0.75 2.08 0.40 0.40 0.48 1.35 1.91 1.20 2.20 2.50
19802.96 0.97 1.30 1.80 0.25 0.63 0.21 0.00 0.20 0.50 2.10 4.30 4.30
19810.58 1.26 0.70 1.07 0.68 1.60 0.20 0.00 2.25 2.50 1.78 4.05 4.05
19823.22 2.10a0.80 1.75 0.23 0.40 0.34 0.08 0.47 1.65 1.71 3.15 3.22a
19832.51 2.18 3.15 0.93 0.75 0.55 0.65 0.83 0.35 0.49 1.72 1.94 3.15
19841.11 3.01 0.96 1.56 0.80 0.92 0.60 0.09 0.63 1.00 4.72 1.30 4.72
19850.17 1.28 1.10 0.61 0.60 2.65 0.42 0.35 0.49 1.44 0.94 2.18 2.65
19861.45 2.44 1.57 0.63 0.34 0.22 0.81 0.00 0.81 1.45 2.01 1.51 2.44
19871.43 3.44 1.15 0.46 1.04 0.06 0.70 0.00 0.04 0.31 1.21 4.32 4.32
19882.74 0.64 2.19 0.78 0.79 0.78 0.05 0.04 0.48 0.14 2.04 1.74 2.74
19892.68 0.96 1.13 0.73 0.78 0.54 0.22 0.50 0.40 1.22 0.87 2.87 2.87
19903.10 1.42 1.20 1.22 0.53 0.38 0.26 0.52 0.45 1.19 1.80 0.82 3.10
19911.65a1.18 1.92 2.07 0.89 0.37 0.10 0.44 0.03 1.24 1.45 1.42 2.07a
19922.25 2.49 0.43 1.22 0.16 0.20 0.48 0.46 0.82 1.53 2.61 2.08 2.61
19932.60 0.72 1.57 1.39 1.08 1.00 0.44 0.18 0.01 0.73 0.47 2.40 2.60
19941.12 1.32 0.94 0.82 0.85 0.65 0.05 0.00 0.67 2.89 2.46 2.28 2.89
19952.11 2.35 1.41 1.52 0.67 0.57 0.07 0.45 1.60 1.95 2.12 2.81 2.81
19962.24 5.23 1.26 2.06 0.92 0.12 0.98 0.06 1.24 1.01 6.29 2.89 6.29
19973.23 0.80 2.34 1.95 0.91 0.37 0.14 0.58 1.08 1.95 2.30 1.90 3.23
19981.61 1.97 2.35 0.58 1.15 0.25 0.00 0.00 0.69 0.64 3.83 5.51 5.51
19993.25 2.62 1.68 0.32 0.62 0.22 0.04 0.27 0.03 2.74 2.61 2.38 3.25
20001.48 1.94 0.65 0.48 1.17 0.87 0.11 0.00 0.63 0.71 1.11 1.92 1.94
20010.95 0.73 0.73 0.64 1.27 1.22 0.38 0.72 0.27 1.13 3.18 3.23 3.23
20022.98 1.84 2.10 0.93 0.43 0.56 0.00 -----z0.36 0.25 1.80 2.75 -----z
20031.53 1.43 1.93 0.94 0.58 0.06 0.03 0.10 0.42 0.49 2.43 2.64 2.64
20041.74 0.98 1.24 1.22 0.33 0.71 0.00 0.51 1.39 1.18 0.84 2.34 2.34
20051.62 0.29 2.67 0.49 0.87 1.24 0.06 0.18 0.21 0.69 1.64 3.72 3.72
20063.53 1.37 1.71 1.00 0.53 0.59 0.05 0.02 0.26 0.86 3.91 2.83 3.91
20072.25 1.84 0.78 0.72 0.50 0.22 0.20 0.38 0.38 1.57 1.37 3.92a3.92a
20081.67 1.10 1.22 0.83 0.14 0.38 0.01 0.53 0.15 1.18 1.46 1.52 1.67
20092.51 1.47 1.86 0.76 1.82 1.38 0.72 0.15 0.88 1.15 1.77a2.15 2.51a
20101.92 1.16 2.55 1.81 0.56 1.68 0.04 0.47 0.84 1.85 1.98 1.98 2.55
20111.76 1.86 2.50 1.33 0.82 0.18 0.47 0.02a0.14 0.48 2.30 2.40 2.50a
20124.16 1.18 2.94 0.44g1.04 0.42f0.35 0.00 0.00 1.63 3.11 2.29 4.16m
20130.42 1.12 1.42 1.26 0.69 0.53 0.00 0.16 3.76 0.38 1.23 1.95 3.76
20141.49 2.02 2.37 2.35 0.77 0.41 0.18 0.04 0.81 2.12 2.14 2.98 2.98
20152.22 2.05 2.06 0.41 0.26 0.33 0.00 0.41 0.79 1.23 1.16 3.16 3.16
20162.08 0.91 1.50 1.46 1.52 0.37 0.58 0.02 0.44 4.51 4.60 1.40 4.60
20172.00 2.60 1.34 1.11 0.75 0.43 0.00 0.15 0.92 3.04 2.00c-----z-----z
Period of Record Statistics
MEAN2.14 1.92 1.67 1.04 0.80 0.57 0.23 0.30 0.70 1.29 2.08 2.48 3.31
S.D.0.92 0.92 0.82 0.57 0.50 0.44 0.25 0.33 0.62 0.82 1.00 0.96 0.92
SKEW0.60 0.91 1.14 0.99 1.21 1.81 1.27 2.17 2.04 1.10 1.29 0.89 0.78
MAX5.11 5.23 4.35 3.02 2.32 2.65 0.98 2.00 3.76 4.51 6.29 5.51 6.29
MIN0.17 0.29 0.40 0.21 0.14 0.00 0.00 0.00 0.00 0.09 0.45 0.81 1.67
YRS79 81 81 79 77 80 79 77 82 81 81 79 65