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Washington Precipitation Summary...amended
National Weather Service Seattle WA
1201 PM PDT Sat Jun 24 2017

May brought near normal precipitation for most of Washington. The
Puget Sound lowlands were the only region that saw above normal
precipitation, while the Olympics on the western side, and the
Okanogan region on the eastern side saw below normal precipitation
for the month. For the water year, all of Washington state remains
above normal.

In western Washington, the monthly percentage of normal for
precipitation ranged from 83 percent in the Olympic Mountains to 125
percent in the Puget Sound lowlands.  The greatest amount of
precipitation at the climate stations for the mountains, coast and
interior lowlands was 8.15 inches at Cedar Lake on the western
slopes of the Cascades, 5.15 at Quillayute, and 5.29 inches at Grays
River in the southwest interior.

For eastern Washington, the percentage of normal for precipitation
ranged from 85 percent in the Okanogan region to 108 percent on the
eastern slopes of the Cascades, and in the Palouse and Blue
Mountains region.  The greatest amount of precipitation at climate
stations for the mountains and lowlands was 1.99 inches at Pullman
in the Palouse and Blue Mountains region, and 2.82 inches at
Republic in the northeast region.

The outlook for June and beyond for Washington state, for the next
two weeks the outlook is for near normal precipitation.  The monthly
outlook for June is calling for below normal precipitation for the
western half of the state.  The eastern half has equal chances of
above, below or near normal precipitation, except for above normal
precipitation for the extreme eastern part. The three month outlook
for June through August is calling for equal chances of above, below
or near normal precipitation for the entire state.

The table below gives precipitation figures as a percent of normal
for regions of Washington.  The current water year began 1 October
2016 and ends 30 September 2017.

                          May     Water year      Past 3       Past 12
                         2017       to date       months        months
Western Washington
  Coast                   109          135          176           130
  Olympics                 83          126          148           122
  Northwest Interior      108          125          149           118
  Puget Sound Lowlands    125          140          172           134
  Southwest Interior      106          128          152           125
  West Foothills Casca     91          124          152           120
  Cascades West            96          127          161           123

Eastern Washington
  East Slopes Cascades    108          127          176           122
  Okanogan                 85          160          176           145
  Central Basin            97          154          164           141
  Northeast               100          156          154           134
  Palouse and Blue Mtn    108          146          180           129



The table below expresses precipitation in inches and as a percent of
normal for a variety of locations around the state.  Occasionally
missing data at a site are estimated using observed data from
surrounding stations.

                      May             Water year       Past 12 months
                Inches    Pct       Inches    Pct       Inches    Pct

Quillayute        5.15    101       122.53    140       133.07    136
Hoquiam           3.85    117        82.06    135        87.41    131
Bellingham        2.44     98        40.02    137        43.36    126
Seattle           2.28    118        47.33    144        51.04    139
Olympia           3.07    132        61.04    136        65.03    130
Longview          2.37     75        52.07    125        57.78    123

Concrete          3.21     83        75.60    124        84.28    122
Snoqualmie Fall   4.55    113        63.77    119        73.13    123
Randle*           3.00     91        61.05    124        68.74    123
Diablo Dam        2.07     65        76.91    112        83.72    111
Stampede Pass     3.09     72        88.95    126        98.20    125
Paradise*         5.67     96       139.64    132       155.79    134

Winthrop          1.26    113        16.50    139        20.03    140
Stehekin          1.47    130        45.46    137        48.43    135
Leavenworth       1.27    119        28.23    126        30.43    124
Mount Adams       1.07     65        61.16    144        62.93    139
Wenatchee         0.61     88         9.62    127        10.59    127
Yakima            0.55     95        11.30    166        11.91    152

Coulee Dam        1.31    114        14.90    178        17.18    168
Lind              0.55     67        13.85    171        15.25    168
Republic          2.82    144        20.67    172        25.11    163
Spokane           1.31     81        22.55    168        23.70    148
Pullman           1.99    302        22.25    150        24.54    124
Dayton            0.92     53        21.35    133        23.63    134

* = Estimated

$$
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