September, 2005
 

Overview

September's high temperatures were mostly above normal for the first 9 days. Then the temperatures were mostly around or below average until the 25th. The remainder of the month was above average.

The low temperatures this month stayed below average for most of the month. Three days had low temperatures more than 10°F below expected. They are the 24th, 25th, and 26th.

The average high temperature for the month was half a degree below expected, and the average low temperature a little over 6 degrees below normal.

No new temperature records were made this month.

There was nearly four tenths of an inch of precipitation this month, which is over an inch below what was expected.

No new precipitation records were set this month.

Total water year precipitation (since October 1) is 68% 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
*Depart/ normal
 
Average maximum temp
76.6
-0.5
 
Average minimum temp
44.1
-6.2
 
Monthly precipitation
0.39
-1.08
 
Growing degree days @ 50F
311
-39
 
Days with measurable precip
4
-3.1
 
Days with .10" or more precip
1
-2.6
 
Days with .50" or more precip
0
-0.9
 
Days with 1" or more precip
0
-0.2
* departure from 1971-2000 normal

Looking ahead to October

  • Maxima rise to about 65°
  • Minima rise to about 42°
  • Average precipitation is 3.02 inches
  • There are an average of about 12 days with measurable precipitation

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