Overview
Table 1 is a summary of monthly averages and totals at selected stations
throughout the state. Table 2 lists daily temperatures and precipitation
for most of the locations listed in Table
1. In Table
3, monthly
precipitation totals throughout the state are listed.
Basin Summary
Here is a summary of water indicators at the end of the month, by
river basin:
|
Precipitation |
Stream
Flow |
SWSI* |
| BASIN |
(1) |
(2) |
(3)
|
(4) |
(5) |
(6) |
| OWYHEE |
147 |
63 |
94 |
69 |
-4 |
-1.2 |
| MALHEUR |
245 |
73 |
98 |
84 |
192 |
-1.0 |
| GRAND RONDE, POWDER, BURNT |
114 |
107 |
106 |
85 |
-26 |
0.4 |
| UMATILLA, WALLA WALLA, WILLOW |
30 |
92 |
107 |
85 |
-17 |
0.5 |
| UPPER JOHN DAY |
21 |
75 |
98 |
51 |
-17 |
0.4 |
| UPPER DESCHUTES, CROOKED |
11 |
68 |
106 |
57 |
-41 |
1.1 |
| LOWER DESCHUTES, HOOD RIVER |
33 |
107 |
119 |
98 |
-38 |
2.7 |
| WILLAMETTE |
26 |
97 |
104 |
89 |
28 |
2.1 |
| ROGUE, UMPQUA |
3 |
99 |
102 |
96.5 |
-18 |
1.0 |
| KLAMATH |
5 |
96 |
99 |
85 |
-4 |
-1.4 |
| LAKE COUNTY, GOOSE LAKE |
28 |
78 |
87 |
77 |
9.5 |
-0.7 |
| HARNEY |
5 |
49 |
92 |
72 |
-8 |
-1.0 |
| NORTH COAST |
23 |
96 |
n.a. |
57 |
-36 |
0.1 |
| SOUTH COAST |
19 |
90 |
n.a. |
34 |
-28 |
-1.9 |
Data may not provide a valid measure of conditions.
* Last month’s numbers; current data unavailable at press time
n.a.
Not available
(1) Percent of normal September precipitation, from NOAA Cooperative
sites
(2) Percent of normal seasonal precipitation (since Oct. 1),
from NOAA Cooperative sites
(3) Percent of normal seasonal precipitation, from Natural Resources
Conservation Service (NRCS) SNOTEL sites
(4) Percent of normal September stream flow, from U.S. Geological Survey
(USGS)
(5) Percent of normal seasonal stream flow (since Oct. 1), from USGS
(6) Surface Water Supply Index, from NRCS (-4 = very dry, 0 = normal,
+4 = very wet)
|
