CAIRO 3N, IL

Maximum of Precipitation (Inches)

(111166)

File last updated on September 21, 2021
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
1987-----z-----z-----z-----z-----z-----z-----z-----z0.70o-----z-----z-----z-----z
1988-----z-----z-----z-----z1.40 0.37 1.78 3.98 2.70 1.69 2.50 0.96 -----z
19891.16 4.35 1.70 1.52 1.13 -----z1.10 1.02 1.35 1.37 0.48 0.96 -----z
1990-----z2.03 0.89 1.24 1.30 1.28 2.01 1.73 1.22 1.17 1.11 1.99a-----z
19910.68a2.00 -----z1.95r0.87q1.54x-----z-----z2.04w1.42v0.28y1.80t-----z
19920.90y0.79w0.89t0.78w1.20w0.78 2.00s0.52 2.19p4.45x2.35l0.75 -----z
19932.06 0.92r0.67m1.88 1.25a1.68 1.22 1.06a2.01s0.80q2.75n1.21p-----z
19940.80n1.34q0.63t1.26b0.36a1.11 0.73 1.25f0.70 1.68a1.82 1.05 -----z
19951.17 1.80 0.82 2.59 1.22 1.91 1.78 1.49 1.25y1.11v1.76t0.60v-----z
19961.00u0.63v1.20q1.38m1.36s0.80s2.18t0.13r-----z1.10s1.38o0.93n-----z
19971.00w1.57s5.47o2.50u1.92m1.91g1.75w1.57x1.00v0.91u0.68p0.69 -----z
19981.15 1.24a1.28 1.29 1.55 2.06 2.94 2.13 0.66 3.02 1.07 1.99a3.02b
19991.52 0.98 0.99 1.44 0.83 1.98 2.80 0.40 0.25 3.18 -----z1.30 -----z
20003.54 1.77 1.47 2.84t1.23 0.70 2.95 0.75 0.90 1.24 1.50 0.86 3.54t
20010.76 1.65 0.67s0.74h1.73 0.42 4.24s2.46s1.25w1.92 1.63 1.99i-----z
20021.80q1.51u3.05 1.48m2.99r1.37 2.30w2.34 2.10 0.83 1.25 2.00n-----z
20030.18u1.10j1.16 1.48u1.38 2.02 1.28 1.50 1.78 0.68 1.38 0.95p-----z
20040.78r0.86s0.93s2.05u1.88p0.73 0.62t1.74u0.02 2.10 2.50l1.31w-----z
20051.35s0.81n1.95v0.83q1.97y0.82v3.47 1.11 1.25 0.10 1.50w0.32h-----z
20061.30s1.47 2.46 0.65 1.30 1.11 1.61 1.92 2.77s2.37 1.25 1.94 -----z
20071.50 1.75 0.79 1.35 0.86 1.30 1.67 0.64 1.68 5.66 1.37 1.64 5.66
20081.51 1.97 4.84 3.87 1.71 1.18 2.75 0.89 0.31 1.25 1.05a0.88 4.84a
20090.25 1.87a1.66 1.16a1.97 1.80a2.84 1.28 1.65 1.84 0.43 1.61 2.84c
20100.75a0.37 1.70b2.02a1.41a0.89c1.86b1.08a2.55 0.64a1.97 0.73 2.55l
20111.94 2.40b2.24a2.60a3.20a1.70d1.45b0.91a1.94 0.54 2.51a3.32a3.32n
20121.37b1.00b2.09 0.60b0.29a1.64 0.75c0.49a2.30b2.23c1.83 0.76a2.30q
20133.34a1.29 1.52b2.22 1.95 3.97d1.03b0.87 1.85c4.35 2.06i-----z-----z
2014-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2015-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2016-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2017-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2018-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2019-----z-----z-----z-----z-----z1.42p1.74a1.45c0.00t1.51e2.08a1.10e-----z
20202.60 1.20 2.10a0.62a0.90c1.38 1.85i0.71m0.59a3.30b1.40a1.17 -----z
20211.11k0.48u1.78n1.05v0.96e1.19 3.16 1.14 1.72k-----z-----z-----z-----z
Period of Record Statistics
MEAN1.58 1.71 1.81 1.64 1.33 1.42 1.95 1.30 1.36 1.94 1.48 1.32 4.09
S.D.0.93 0.84 1.00 0.87 0.61 0.75 0.84 0.79 0.80 1.32 0.58 0.67 1.38
SKEW0.84 1.65 1.70 1.01 1.05 1.58 0.29 1.83 -0.03 1.17 0.06 1.57 0.16
MAX3.54 4.35 4.84 3.87 3.20 3.97 3.47 3.98 2.70 5.66 2.51 3.32 5.66
MIN0.25 0.37 0.79 0.60 0.29 0.37 0.73 0.40 0.02 0.10 0.43 0.69 2.84
YRS16 17 17 16 21 23 21 22 19 22 18 18 4