February 2009

 

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)

(7)

OWYHEE 7 74 103 89 70 35 -0.8
MALHEUR 24 60 74 59 -8 50 -2.0
GRAND RONDE, POWDER, BURNT 52 85 92 79 -25 83 -1.0
UMATILLA, WALLA WALLA, WILLOW 97 83 92 89 -63 91 -1.1
UPPER JOHN DAY 53 63 81 74 -25 49 -1.0
UPPER DESCHUTES, CROOKED 94 63 84 87 -27 52 0.2
LOWER DESCHUTES, HOOD RIVER 75 96 90 106 -65 83 -0.6
WILLAMETTE 61 81 84 0 -72 74 -0.8
ROGUE, UMPQUA 63 78 88 87 -44.5 63.5 -0.6
KLAMATH 37 56 85 85 14 62 -1.9
LAKE COUNTY, GOOSE LAKE 82 77 79 74 43 38.5 -1.2
HARNEY 35 50 80 64 32 61 -1.0
NORTH COAST 63 94 62 0 -83 86 -1.1
SOUTH COAST 81 75 n.a. n.a. 8 75 -1.7

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 February 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 snow water equivalent, from NRCS SNOTEL sites
(5) Percent of normal February stream flow, from U.S. Geological Survey (USGS)
(6) Percent of normal seasonal stream flow (since Oct. 1), from USGS
(7) Surface Water Supply Index, from NRCS (-4 = very dry, 0 = normal, +4 = very wet)

 

 


Oregon Climate Service
Oregon State University, Strand 326
Corvallis, Oregon 97331
Phone: (541) 737-5705
Fax
: (541) 737-5710
E-mail
: oregon@coas.oregonstate.edu
Web: http://www.ocs.oregonstate.edu