PETRIFIED FOREST NP, AZ

Total of Precipitation (Inches)

(026468)

File last updated on April 20, 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
19310.27 0.98 0.22 2.05 0.25 0.37 2.62n2.97 1.16 0.91 2.67a0.24 12.09a
19320.37 0.62 0.19 0.35 0.52 0.00 1.13 1.24 -----z0.36 0.00 1.53 6.31a
19330.38 1.07 -----z0.76 0.02 0.20 1.50 0.84 1.92 1.42 0.65 0.29 9.05a
19340.11 1.22 0.40 0.75 1.45 0.09 1.06 2.09 0.23x0.08 0.44 0.87 8.56a
19351.58 0.88 0.30 0.00 0.97 0.03 0.49 2.74 2.01 -----z0.65 0.30a9.95a
19361.13 0.70 1.12 0.09 0.27 0.23 2.79 1.27 2.10 0.78 0.24 1.04 11.76
19370.63 0.46 0.65 0.16 0.28 0.64 1.87 0.50 0.41 0.37 0.03 0.44 6.44
19380.17 1.34 1.34 0.72 0.31 0.66 1.51 0.47 0.57 -----z0.07 0.48 7.64a
19390.68x2.00 0.48y1.10 0.01 0.00 0.45 1.59 1.02 -----z0.75x-----z6.17e
19400.53 1.26a0.31 1.99 0.20y0.51y1.18u0.72q1.86 1.02 0.75 1.49 9.21d
19411.90 1.33 2.74t1.02 1.07 0.37 2.69 1.45 2.48 1.02 0.44 0.54 14.31a
19420.26 0.44 0.12 0.59 0.00 0.00 0.39 1.52 0.34 1.63 0.36 0.18 5.83
19430.73 0.69 0.53 0.08 0.49 0.16 1.78 2.19 1.24 0.82 0.02 1.07 9.80
19440.17 0.34 0.59a0.81 0.52 0.00 0.70 0.81 1.36 0.49 1.23 0.54 7.56
19450.20 0.30 0.41 0.10 0.00 0.16 3.73 1.66 0.06 0.23 0.00 0.94 7.79
19460.40 0.12a0.26 0.06 0.05 0.00 1.33 1.91 2.10 0.15 0.96 0.14 7.48
19470.19 0.16 0.00 0.04 0.96 0.22 0.62 2.89 0.39 2.10 0.60 0.38a8.55
19480.12a1.05u0.55y0.01 0.02 -----z0.71 1.14 0.53 1.52 0.00 0.68 4.73c
19490.50 0.15 0.17 0.24 0.40 0.58 0.94a4.33 1.72 0.51c0.24 0.20 9.98
19500.19 0.59 0.11 0.00 0.02 0.15 1.35 0.78 0.61 0.00 0.05 0.00 3.85
19510.76 0.38 0.35 0.61 0.03d0.00 0.67 2.08 0.50 0.93 0.84 0.35 7.50
19520.64 0.33 0.36 1.53 0.04 0.92 1.95 1.78 1.71 0.00 2.29 0.25 11.80
19530.08 0.04 0.79 0.84 0.11 0.06 2.19 0.66 0.00f0.13c0.53 0.43 5.86a
19540.32f0.36 0.93 0.00 0.37 0.00 4.67 1.46 1.40 0.53 0.21 0.20 10.13a
19550.36 0.39 0.07 0.01 0.69 1.76 1.22 3.42 0.04 0.20 0.18 0.18 8.52
19561.41 0.87 0.00 0.23 0.52 0.17 0.77 0.89 0.02 0.57 0.10 0.13 5.68
19570.83 0.65 0.58 0.21 0.72 0.60 1.07 2.13e0.00 2.39 0.61 0.21a10.00
19580.16 0.49 1.09 0.32 0.53 1.40 1.13 3.21 2.53 0.55 0.51 0.00 11.92
19590.12 0.17 0.00 0.36 0.03 0.12 1.11 1.61 0.25 3.61 0.52 1.30 9.20
19600.71 0.26 0.58 0.19 0.49 0.36 0.19 0.61 0.39 1.43 0.02 0.61 5.84
19610.18 0.11 0.85 0.09 0.15 0.00 0.35 1.58 1.12 1.78b0.83 0.31 7.35
19620.33 0.46 0.28 0.00 0.00 0.86 0.48 0.78 1.58 1.14 0.89 0.20 7.00
19630.16 1.29 0.25 0.29 0.00 0.00 0.21 2.11 1.27 1.09 0.76 0.16 7.59
19640.06 0.09 0.12 0.60 0.16 0.12 2.21 2.53 1.75 0.04 0.53 0.71 8.92
19650.87 0.36 0.95 0.21 0.22 1.06 1.01 0.90 0.84 0.53 0.39 1.47 8.81
19660.15 0.66 0.04 0.22 0.00 0.33 2.99 2.05 1.65 0.61 0.34 0.74 9.78
19670.14 0.00 0.22 0.18 0.47 0.15 0.94 3.71 1.10 0.21 0.55 1.75 9.42
19680.22 0.72 1.03 0.62 0.06 0.17 1.80 3.91 0.05 1.79 0.24 0.50 11.11
19690.41 0.39 0.90 0.00 1.41 0.03 0.90 1.68 1.92 0.97 1.13 0.49 10.23
19700.49 0.16 0.94 0.89 0.05 0.11 1.50 0.89 2.44 0.55 0.01 0.16 8.19
19710.17 0.15 0.00 0.49 0.00 0.00 0.78 1.16 3.07 1.60 0.30 0.63 8.35
19720.00 0.00 0.00 0.00 1.13 0.72 0.44 0.82 0.54 3.95 0.64 0.45 8.69
19730.21 1.41 0.83 1.29 1.77 0.58 0.29 1.13 0.01 0.05 0.81 0.00 8.38
19741.00 0.04 0.29 0.00 0.00 0.00 1.43 2.03 0.34 3.07 0.07 0.05 8.32
19750.31 0.80 0.90 0.45 0.38 0.02 1.20 0.62 2.36 0.00 0.44 0.56 8.04
19760.23 0.30 0.17 0.10 1.25 0.03 1.58 0.66 1.39 0.73 0.03 0.29 6.76
19771.64 0.30 0.48 0.47 0.02 0.14 2.19 0.62 1.29 1.09 0.40 0.37 9.01
19781.22 0.95 1.62 0.08 0.82 0.12 0.34 1.21 0.57 1.37 2.09 1.76 12.15
19790.85 0.05 0.87 0.14 1.84 0.78 0.17 1.65 0.06 0.91 0.96 0.67 8.95
19801.23f1.78 0.98 0.26 0.22 0.00 0.60 1.24 1.57 0.67 0.00 0.96 8.28a
19810.72 0.63 1.39 0.54 0.38 0.14a2.04 1.50 0.61 1.10 0.49 0.00 9.54
19821.18i0.88 0.78 0.07 0.86 0.30 0.96 1.00 2.85a0.04 0.99 1.40 10.13a
19830.32 0.33 0.74 0.18 0.26 0.05 2.07 2.03 2.55 1.23 0.51a0.83 11.10
1984-----z0.00 1.32 0.33 0.01 0.77 2.79 2.40 3.45 1.50 0.09 1.73 14.39a
19851.07 0.70 1.05 1.54 0.15 0.17 2.63 0.51 1.46 1.98 0.90 0.10 12.26
19860.05 0.87 1.15 0.17 0.21 0.20 3.37 1.25 0.85 1.67 1.23 1.79 12.81
19870.53a0.69 0.35a0.23 0.67 0.16 1.26 1.19 0.29 1.10 1.19 0.60a8.26
19880.43 0.60 0.00 2.18 0.01 1.95 0.55 2.33 1.15 0.36 0.73 0.10 10.39
19890.76 0.14 1.17a0.00 0.00 0.00 2.59 2.01 1.06 0.52 0.00 0.25 8.50
19900.05 0.26 0.47 0.49 0.26 0.00 2.60 1.94 2.36 0.61 1.83 1.56a12.43
19911.27 2.24 0.95 0.00 0.09 0.63 0.39 1.06 0.78 0.02 0.63 1.59 9.65
19920.71 0.54 1.36 0.48 2.82 0.31 2.11 3.29 0.26 0.95a0.62 2.12 15.57
19932.40 1.02 0.44 0.57 0.29 0.00 0.09 4.81 0.35 1.98 2.91 1.28 16.14
19940.66 0.28 1.28 0.56 1.29 0.48 0.61 2.06 1.27 2.86 2.35 1.34a15.04
19950.49 0.67 0.73 0.36 0.38 0.01 0.24 1.91 1.79 0.00 0.39 0.63n6.97a
19960.03e0.31 0.12 0.09 0.08 0.51 0.63 1.64 2.79 1.05 0.95 0.08 8.28
19971.12 0.33 0.00 0.25 0.41 0.18 1.77 1.29 3.01 0.65 0.75 1.95 11.71
19980.24 0.81 2.28 0.49 0.12 0.00 3.67 0.65 0.24 1.88 0.50 0.45 11.33
19990.16 0.12 0.11 0.73 0.18 0.27 3.39 2.90 1.41 0.00 0.00 0.00 9.27
20000.10 0.36 2.24 0.09 0.02 0.42 0.82 1.59 0.17 3.13 0.96 0.16 10.06
20010.70 0.47 0.25 1.34 0.59 0.01 1.68 1.66 0.22 0.40 0.00 1.19 8.51
20020.24 0.02 0.18 0.71 0.00 0.00 2.21 0.64 2.04 0.39 0.77 1.23 8.43
20030.20m1.63 0.47 0.21 0.01 0.26 0.10 1.35 0.32 0.53 0.36 0.18a5.42a
20040.34 0.38 0.42 1.60 0.00 0.26 2.34 2.25 1.22 1.11 0.62 0.54 11.08
20050.89 2.51 0.89i0.00a0.00 0.05 0.38 1.80 0.28 0.19 0.04 0.01 6.15a
20060.48a0.00 0.78a0.07 0.00 0.09 3.00 0.98 0.90 1.13 0.00 0.26 7.69
20070.49 0.98 0.42 0.09 0.42 0.18 5.02 1.60 0.48 0.04a0.02 1.03a10.77
20081.00a0.95 0.00 0.06 0.36 0.39 2.21 1.73a0.35 0.54 0.67 0.46 8.72
20090.59 0.23 0.35 0.35 0.66 0.30 0.32a1.53 0.14 0.33 0.10 0.75 5.65
20100.72 0.16 0.45 0.17 0.25 0.00 2.07 2.28 3.94 0.29 0.10 2.43a12.86
2011-----z0.54o0.56y0.31 0.75 0.00 1.58 1.17a2.02 0.67 0.36 1.67a8.53c
20120.33 0.62 0.60 0.18 0.00 0.06 1.93 2.62 0.22 0.00 0.26 0.48a7.30
20130.40 0.21 0.34 0.39 0.13 0.00 2.49 1.95 0.67 0.03q2.17 0.06 8.81a
20140.00 0.04 1.30 0.23 0.12 0.00 0.88 1.13 1.59 0.88d0.09 1.85a8.11
20152.10 0.60 0.32 0.11 1.73 1.63 2.36 1.08 0.95 2.21 0.97 0.69 14.75
20160.15 0.00 0.03 0.64 0.77 0.09 0.81 2.41 0.54 0.65 0.83 0.94 7.86
20170.81 0.65 0.50 0.36 0.48 0.12 4.10 0.10 0.57 0.01 0.00 0.00 7.70
20180.19 0.25 0.50 0.14 0.18 0.77 0.81 0.61 0.42 3.75 0.11 0.04j7.73a
2019-----z0.93e0.90 0.15 0.87 0.08 0.39 0.41 1.28 0.07 2.20 0.82a8.10a
20201.10 1.11a0.73 0.89 0.00 0.02 0.75 0.14 0.34 0.35 0.22 0.23 5.88
20210.47 0.66 0.92 0.21 0.00 0.09 3.53 1.56 1.73 1.01 -----z-----z10.18b
20220.96 0.61 1.18a0.00 0.00 0.44 2.77 2.41 3.18 3.26 0.60 2.09 17.50
20233.26 0.65 0.97 0.09 0.77 0.50 0.34 2.55b1.17 0.10 0.97 0.98 12.35
20240.84 0.28 2.87 -----z-----z-----z-----z-----z-----z-----z-----z-----z3.99i
Period of Record Statistics
MEAN0.59 0.59 0.63 0.42 0.41 0.29 1.52 1.66 1.19 0.97 0.62 0.70 9.49
S.D.0.57 0.50 0.54 0.48 0.51 0.40 1.11 0.92 0.92 0.93 0.64 0.61 2.62
SKEW2.07 1.43 1.43 1.83 2.00 2.23 0.93 0.95 0.76 1.39 1.68 0.89 0.81
MAX3.26 2.51 2.87 2.18 2.82 1.95 5.02 4.81 3.94 3.95 2.91 2.43 17.50
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.10 0.00 0.00 0.00 0.00 3.85
YRS86 92 88 93 92 91 91 92 90 89 91 89 70