HEADWORKS PORTLAND WTRB, OR
PRCP from 1948-1997
under 2 index extremes

Index Extremes
PRCP
Obs
Any | Extreme
PRCP days
Mean
PRCP
High NAM&High PNA
145
83
18
0.26"
High NAM&Low PNA
288
213
53
0.42"
High NAM&High CTI
210
141
30
0.35"
High NAM&Low CTI
179
140
35
0.45"
Low NAM&High PNA
224
136
27
0.29"
Low NAM&Low PNA
134
102
24
0.45"
Low NAM&High CTI
221
157
21
0.33"
Low NAM&Low CTI
168
124
28
0.39"
High PNA&High CTI
276
182
30
0.31"
High PNA&Low CTI
105
66
12
0.34"
Low PNA&High CTI
104
83
14
0.43"
Low PNA&Low CTI
307
257
67
0.48"

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