WATERVILLE TREATMENT PLT, ME

Maximum of Precipitation (Inches)

(179151)

File last updated on May 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
1895-----z-----z-----z-----z-----z-----z-----z-----z1.16 0.84 1.85 1.48 -----z
18960.30 1.45 2.30b0.73 1.21 0.90 0.92 1.00 2.98 0.59p0.87a0.86a2.98t
18971.50 0.38w0.54 0.61 1.24n0.73 1.18 1.02 1.38 0.41 1.38 0.93b-----z
18981.08 1.24a0.32 1.13 0.30 0.96 1.06 1.15 0.97 1.50 1.01 0.67 1.50a
18990.67a0.87 0.86 -----z0.67 0.46 1.16 0.12 0.92 0.41 1.01 0.45b-----z
19001.82a2.06a2.50c0.82 2.00 1.85v1.80y0.87 1.03 1.23 2.10a-----z-----z
19010.97a0.65b1.68c1.77 1.38 0.85 -----z1.78 1.63 1.46b0.90a3.33 -----z
19020.98 1.08b1.68a0.79 0.85 1.70 0.88 1.15 1.00 3.70 0.30a1.73q3.70u
19031.40 0.77 1.47 0.67 0.16 3.16 1.20 0.90 0.35 -----z0.45a0.93 -----z
19040.86a0.61a1.41a1.49 1.31 -----z0.93 1.52 2.62 1.23 1.01a1.05a-----z
19051.82a0.49 0.44 1.27 0.89 1.22 1.55 0.91 0.92 0.30 0.77 1.15a1.82b
19061.14a0.47a1.11a1.13a2.11 1.73 1.53 1.95 0.30 2.48 0.99a0.47c2.48h
19070.99c0.35b0.60 0.83 1.22 1.21 1.16u0.52x1.30 1.25 1.85y1.48 -----z
19080.86 0.95a0.49a0.82 1.88 1.82 0.75 -----z0.70 1.24 0.56 -----z-----z
19092.48 1.70 1.00 1.80 0.71 1.95 0.68 0.85 1.73 0.64 1.97 0.65 2.48
19100.95 0.60 1.10 2.00 0.65 1.20 0.93 3.25 0.80 0.29 1.30 1.74a3.25a
19110.58 0.50a0.90 0.48 0.45 0.94 1.77 1.50 0.80 1.01 0.78 1.90 1.90a
19121.05 1.60 1.67b0.65 2.35 0.20 1.33 2.00 0.95 2.25 1.33 0.99 2.35b
19130.65 0.51 2.07 0.62 1.87 0.42 0.85 0.90 1.86 2.52a0.73 1.86 2.52a
19140.80 0.53 2.28 1.73 0.88 0.89 0.40 2.38 0.40 1.90 0.88 0.80 2.38
19151.02 1.65 0.08 0.71 1.55 0.60 4.15 1.04 1.05 0.99 0.81 1.10 4.15
19160.42 1.51 0.27 1.04 2.01 0.81 0.64 1.40 1.28 2.12 3.28 1.75a3.28a
19170.94 0.42 1.25a0.70 0.61 3.25 0.30 1.24 0.58 1.24 0.47 1.31 3.25a
19180.98 0.63 0.28 0.68 0.82 1.19 1.67 2.21 1.68 1.82a1.26 0.74b2.21c
19191.82 0.82 1.10 0.74 1.57 0.98 1.23 0.42 1.81a0.72a0.55 0.48 1.82b
19200.31 1.94 0.86 1.81 1.10 1.11 1.28 1.66 3.01 0.65 1.24 1.47 3.01
19211.04 1.30 0.90 1.54 0.60 0.48 1.35 1.34 0.62 0.85 1.02 0.65 1.54
19220.56 0.85 1.20 0.84 2.52 2.20 4.88 2.05 0.84 0.84 1.10 0.75 4.88
19231.51 0.33 0.84 2.55 0.41 0.65 1.16 0.69 1.26 0.90 1.44 0.67 2.55
19241.00b0.77 0.29 1.00 0.95 1.25 1.03 1.44 1.22 0.07 1.14 0.69 1.44b
19250.61 0.50a1.12 0.30 0.45 0.65 2.43t0.25 2.70 1.20 0.80 1.70 2.70u
19261.61 0.72a1.09 0.64u1.29 1.10 1.72 0.78 0.95 1.65 2.29 1.45 2.29v
19270.43 0.70 0.60 0.46 1.21 0.94 1.10p1.64 0.40 1.92 1.56 0.77a1.92q
19280.95 0.75 1.00 0.72 2.51 1.05 0.68 1.65 1.33 0.60 0.95 0.85 2.51
19291.03 0.50 0.94 1.33 0.80 0.75 0.63 1.26 0.66 1.65 0.94 0.83 1.65
19300.51 1.06 1.88 0.78 1.24 0.39 0.79 0.98 0.41 1.65 1.05 0.47 1.88
19310.67 0.76 1.20 1.12 1.10 1.44 1.00p1.80 1.52 1.55 0.30 0.61 1.80p
19320.80 0.40 1.23 0.46 1.02 0.55 0.78 1.30 5.42 0.95 1.25 0.28 5.42
19330.50 0.72 1.10 1.13 0.79 0.45 1.00 1.58 1.72 1.75 0.92 0.61u1.75u
19340.96 1.02 0.64 1.70 0.49 0.72s2.80 0.90 5.28 1.06 0.55 1.12 5.28s
19351.81 0.73 0.60 1.10 0.65 1.20 0.95 0.50 1.70 0.70 1.31 0.86 1.81
19361.72 0.57 1.81 1.00 2.36 0.78 0.47 0.46 0.84 1.00 0.75b1.30c2.36e
19370.78 1.15 2.20 0.87 1.90 0.98 0.61 0.52 1.80 1.80 1.75 1.00s2.20s
19381.22b0.64 0.58 0.51u1.04 0.30 1.22 0.66 1.61 1.92 0.63r0.84 -----z
19390.72 0.56 0.80 0.50s0.60 0.63 0.57 1.20 1.65 1.93 0.45 1.65 1.93s
19401.10 1.05 0.90 3.53 1.12 1.02 0.58 1.63 1.35 0.30 1.31 0.73 3.53
1941-----z1.02 0.70 0.19 0.65 0.60 1.15 2.43 0.28 0.99 1.33 1.27 -----z
19421.10b0.60 1.30 0.51 0.40 1.66 1.28 0.45 1.66 0.72 0.65 1.42 1.66b
19430.42 0.88 0.80 0.59 0.94 1.42 1.50s1.60 0.71 1.40 1.87 0.56 1.87s
19440.45 1.00 0.79 1.00 0.20 0.65 1.45 0.87x3.00 0.94 1.02 0.73 3.00x
19450.93 0.76 0.50 1.09 1.80 1.05 0.63 0.84 1.23 0.95 1.05 1.13 1.80
19461.20 0.80 0.32 0.75 0.51 0.21 1.30 1.03 1.36 4.01 0.94 1.00p4.01p
19471.21 1.12 0.73 0.55 1.05 1.25 1.49 0.58 1.14 0.18 1.30 0.55 1.49
19480.46 0.60 1.05 0.82 2.85 0.99 1.16 0.44 0.54 1.16 1.86 1.36 2.85
19491.03 0.52 0.53 0.89 0.58 1.20 0.68 0.65 1.27 0.55 0.77 0.29 1.27
19500.70 0.65 1.29a0.82 0.36 0.68 0.57 1.09 0.70 1.12 2.96 1.30 2.96a
19511.02 1.12 0.91 1.29 0.74 0.35 1.50 1.09 0.49 1.72 1.98 1.29 1.98
19521.08 0.96 0.95 0.74 0.59 1.97 0.19 0.85 0.89 1.35 0.55 1.90 1.97
19531.23 0.98 1.53 1.15 0.85 1.81 0.95 0.91 0.51 1.19 2.22 1.41 2.22
19540.50 0.85 0.91 1.72 0.92 1.54 1.00 1.93 6.50 0.72 0.88 1.25 6.50
19550.40 1.71 0.87 0.46 1.16 0.77 0.29 1.80 0.32 0.63 3.80 0.44 3.80
19560.79 0.66a0.67 0.95 1.30 0.59 0.89 0.82 1.07 1.94 0.81 0.52 1.94a
19570.26 0.37 1.20 0.84 0.85 0.63 1.00 0.29 0.29 0.92 0.70a1.25 1.25a
19581.40 0.61a0.90 1.88 1.00 0.77 1.51 1.34 0.98 1.14 1.32 0.65 1.88a
19590.84 0.66 0.76 1.58 0.53 0.90 1.13 0.86 1.76 1.96 1.19 1.15 1.96
19601.73 1.20 1.33 1.07 1.29 0.86 0.92 0.58 1.37 1.36 1.36 1.53 1.73
19610.73 1.75 0.55 1.21 1.72 0.95 1.08 0.50 2.70 1.05 1.07 0.89 2.70
19621.02 0.57 1.10 1.51 0.40 0.60 1.00 0.72 1.04 2.75 1.40 1.54 2.75
19630.90 0.92 0.63 0.65 1.08 0.48 0.97 1.59 0.75 1.78 1.90 0.89 1.90
19640.29n0.50 0.77 1.11 0.56 0.73 0.70 1.30 0.64 1.47 1.36 1.36 1.47n
19650.57 1.25 0.18 1.10 0.51 0.36 0.60 1.74 1.78 0.75 1.19 0.42 1.78
19661.01 1.22 1.65 0.38 0.61 1.37 0.71 0.65 0.97 2.63 3.78 1.16 3.78
19670.95 0.60 0.26 1.10 1.06 2.35 1.10 2.47 1.73 0.69 0.92 1.64 2.47
19680.66 1.05 0.61 1.59 0.80 0.67 0.67 0.62 0.68 1.28 1.48 2.00 2.00
19690.86 1.29 0.74 0.96 0.49 0.66 1.58 1.80 2.18 0.40 2.28 3.92 3.92
19700.31 2.11 0.92 1.09 1.33 1.84 0.77 0.69 0.76 1.66 0.57 0.88 2.11
19710.50 1.53 0.79 0.36 1.33 0.88 1.31 1.45 1.70 1.33 0.78 0.35 1.70
19720.53 0.73 3.23 1.10 0.88 2.74 1.77 0.89 2.35 0.95 0.92 0.96 3.23
19730.98 1.35 0.70b1.55 1.20 0.67 1.59 1.05 0.90 2.50a0.67 3.60 3.60c
19740.76a0.74 2.20a2.40 1.16 2.37 1.03 1.13 1.35 0.40 1.80 0.79 2.40b
19750.82 0.93 0.68 1.15a-----z1.90i0.45 1.46 1.09 1.15a1.11 1.31 -----z
19761.05 1.57 0.86 1.27 1.04 0.25 2.08 2.30 0.76 1.84 1.15 0.75 2.30
19770.70 0.76a2.75a0.58 0.95 0.77 0.40 2.55 1.92 1.70 2.30 1.30 2.75b
19781.80 0.91 1.35 0.85 1.57 1.35 0.75 0.45 0.36 1.18 0.91 0.54 1.80
19791.38 1.20 0.94 1.47 1.60 0.20 1.94 0.77 0.75 1.35 2.20 0.88 2.20
19800.36 0.44 1.70 1.15 0.65 1.40 0.85 0.46 1.20 1.02 1.55 0.42 1.70
19810.43 0.67 0.50 0.90 0.91 0.85 0.90 2.20 1.97 2.70 0.72 1.00 2.70
19820.95 0.60 0.47 1.20 0.43 2.42 1.17 0.90 0.73 0.45 1.45a0.65b2.42c
19831.32 0.72 1.35 3.30a1.10 0.90 1.85 1.77 1.30 1.63 2.00a1.35 3.30b
19840.50a1.06 1.70 1.35 2.40 1.37 0.65 0.78 0.95 1.15 1.33 0.73 2.40a
19850.65 1.15a0.92 0.27 0.53 0.67 0.60 2.80 1.12 1.02 1.15 0.95 2.80a
19860.92a0.62 0.90 0.59 1.60 0.39 2.20 0.93 0.75 0.39 1.35 2.05 2.20a
19870.53 0.20 1.01 1.05a1.19 0.70 1.40 0.93 1.48 1.40 0.90 0.20b1.48c
19880.25b0.50 1.00d0.80a0.28c0.70 1.01 2.65 0.55a0.75 1.80 0.38b2.65m
19890.25 0.80 0.10 1.40 2.00 1.15 0.15 0.65 1.00 1.24 0.85a0.20b2.00c
19900.50 0.15d2.55 1.25 1.40 2.50a3.20 3.10 2.01 2.80 2.70d1.20c3.20l
19911.15d0.12a1.15e0.90 1.43 0.85 1.60 2.25 1.70 1.46 1.30 0.35d2.25n
19920.92 1.00a1.70a2.00 0.45 1.30 0.30 1.05 1.50 1.10 0.85b0.35 2.00d
19930.65b1.10 1.70b1.15 0.64 1.02 0.44 0.55 1.05 1.12 1.29 1.37 1.70d
19941.69 0.39 2.09 1.17 0.90 0.63 0.88 1.39 1.97 1.18 1.00 1.01 2.09
19951.11 0.73 1.28 0.69 0.95 1.28 1.15 0.12 0.75 1.40 1.37 0.85 1.40
19962.08 2.12 0.73 2.04 1.31 0.44 3.13 0.42 3.00 0.66 0.75 1.45 3.13
19971.01 0.34a0.86a1.03 0.92 2.00 1.54 0.82 0.65 0.90 0.82 0.64 2.00b
19981.18 1.11 2.18a0.75 1.37a1.87 0.28 0.50 0.89 2.11 1.00 0.69 2.18b
19990.87 1.39b1.80 0.16 1.12a1.02 0.44a0.83 5.68 0.97 0.75 0.82a5.68e
20000.89 1.10 1.45 1.30 0.90 1.22 2.69a0.45 0.36 1.31 1.06c2.13 2.69d
20010.46a1.10a1.29 0.70 0.38d1.96 0.38 0.31a1.23 0.44 0.56 0.95 1.96g
20020.95 1.43 1.15 1.19 1.50 0.66 1.50 0.30 1.20 0.82 1.09 1.45 1.50
20030.88 0.76 0.98 0.53 0.93 0.90 0.74 0.98 1.53 1.29 1.46 1.47 1.53
20040.22 0.70 0.48 1.28 1.03 0.56 0.66a1.69 1.00 1.01 1.48 1.46 1.69a
20050.40 0.64 1.80 2.20 1.09 1.85 0.87a1.56 0.97 3.48 1.81 1.55 3.48a
20061.65 0.91 0.43 0.86 0.70 1.63 1.85a0.83 0.90 2.00 1.12 0.73 2.00a
20070.51 1.11 0.98 1.68 0.77 0.92 0.81 0.77a1.16 2.20 2.07 0.56 2.20a
20080.50 1.31 1.51 3.15 0.40 0.96 3.12 1.14 2.55 1.61 1.97 1.59 3.15
20090.69 0.83 0.82 1.19 0.82 2.58 0.93 0.90 0.38 1.72 2.67 0.99 2.67
20101.27 1.52 1.66 0.99 0.68 0.67 0.59 1.39 2.32 1.56 2.25 2.14 2.32
20110.24d0.87c0.64b1.25b1.15 0.26 0.60 1.65 0.99 0.95 0.77 1.18b1.65m
20120.92 0.84 0.33 2.55b1.54f0.94d0.12 1.82 2.38 1.08 0.95 0.92b2.55n
20130.32 0.68 0.61 0.47 0.72 1.07 0.72 3.42 1.69 0.71 1.09 0.69 3.42
20141.10 0.98 1.27 1.20 0.48 1.88 2.35 2.79 0.51 2.17 1.11 0.99 2.79
20150.70 0.41 0.48 1.52 0.64 1.27 1.13 1.85 1.42 4.11 0.76 0.65 4.11
20161.68 1.10 1.17 0.91 0.89 1.36 1.44 0.93 0.40 1.73 1.08 1.58 1.73
20171.43 1.16 0.58 1.05 1.36 0.48 0.52 0.98 1.38 1.61 0.91 1.07 1.61
20183.05 0.99 0.88 0.95 0.35 1.00 0.77 0.59 1.00 0.70 1.39 1.58 3.05
20191.94 0.56 0.95 1.25 0.62 1.26 0.95 1.65 0.75 1.11 1.65 1.04 1.94
20200.84 0.47 0.61 1.55 0.65 1.41 2.96 0.92 0.65 2.46 1.80 2.36 2.96
20210.83 0.45 1.06 1.01 0.90 0.90 2.36 1.46 1.86 2.41 1.01 0.50 2.41
20220.65 0.95 0.86 0.83 0.63 0.72 1.20 0.67 1.68 2.28 1.35 1.88 2.28
20231.32 0.72 0.45 0.70 2.91 1.24 1.26 1.87 1.44 2.73 0.64 2.50 2.91
20241.53 0.46 2.00 0.87 0.22w-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN0.95 0.89 1.07 1.12 1.04 1.09 1.17 1.23 1.37 1.38 1.28 1.12 2.47
S.D.0.48 0.41 0.59 0.58 0.57 0.61 0.77 0.69 1.01 0.76 0.64 0.63 0.90
SKEW1.17 0.86 1.01 1.58 1.14 1.20 2.03 0.91 2.64 1.14 1.53 1.66 1.65
MAX3.05 2.12 3.23 3.53 2.91 3.25 4.88 3.42 6.50 4.11 3.80 3.92 6.50
MIN0.22 0.12 0.08 0.16 0.16 0.20 0.12 0.12 0.28 0.07 0.30 0.20 1.25
YRS127 128 129 125 125 124 121 125 129 127 127 123 94