March 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 48 69 100 85 48 442 -0.8
MALHEUR 43 56 83 93 37 4 -2.0
GRAND RONDE, POWDER, BURNT 168 99 102 102 82 126.5 -1.0
UMATILLA, WALLA WALLA, WILLOW 149 94 125 106 94 126 -1.1
UPPER JOHN DAY 89 67 89 97 54 217 -1.0
UPPER DESCHUTES, CROOKED 91 67 90 109 50 32 0.2
LOWER DESCHUTES, HOOD RIVER 147 105 96 145 84 61 -0.6
WILLAMETTE 102 84 89 0 51 75 -0.8
ROGUE, UMPQUA 103 82 94 103 76 68.5 -0.6
KLAMATH 110 64 90 100 60 51 -1.9
LAKE COUNTY, GOOSE LAKE 129 84 81 78 172 41 -1.2
HARNEY 21 52 85 84 60 54 -1.0
NORTH COAST 105 98 62 0 154 87 -1.1
SOUTH COAST 86 76 n.a. n.a. 18 79 -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 March 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 March 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