December's high temperatures started out above normal and more or less stayed that way, only becoming normal or below for a day or two, until about the 25th, at which point they fell below normal. The average high temperature was about two degrees above normal, and the average low nearly the same.
11.23 inches of precipitation were reported, about three and half inches more than normal. A record daily snowfall of 3.8 inches occurred on the 29th; the old record, set in 1971, was 1.3 inches. Total Water Year precipitation (since October 1) is 111% of normal.
Table 1 - daily data recorded at the Hyslop Experiment Station.
Table
2 - access to the daily data recorded at the Corvallis Agri-Met
Automated Station. You choose the station and parameters.
Summary: Parameter Observed Dep.* Parameter Observed Dep.* Average maximum temperature 47.5 1.9 Days with measurable precip. 28 +7.3 Average minimum temperature 35.4 1.5 Days with .10" or more precip. 12 -0.3 Monthly precipitation 11.23 3.51 Days with .50" or more precip. 4 -1.0 Growing degree days @ 50F 0 -4 Days with 1" or more precip. 1 -0.8 * departure from 1971-00 normal
Looking ahead to January:
Maxima rise to about 47°
Minima rise to about 34°
Average precipitation is 6.46 inches
There are an average of 20 days with measurable precipitation
Oregon Climate Service
George H. Taylor, Oregon State Climatologist
Wayne P. Gibson, Programmer/GIS mngr.
Mandy Matzke, Research Asst./Manager of Data Services
Cadee Hale, Publications Assistant
Melanie Mitchell, Undergraduate Assistant
Wolf Read, Undergraduate Assistant
Emily Gibson, Student Assistant
Kelsey Kuykendall, Undergraduate Assistant
Oregon Climate Service, Strand 316,Phone: (541) 737-5705 Oregon State University Fax: (541) 737-5710 Corvallis, Oregon 97331 E-mail: oregon@oce.oregonstate.edu Web: http://www.ocs.oregonstate.edu