Annual and seasonal precipitation anomaly
Precipitation anomaly (deviations from the 1901-1960 average, inches) for annual (black), winter (blue), spring (green), summer (red), and fall (orange), for the Northwest U.S. Dashed lines indicate the best fit by minimizing the chi-square error statistic. Based on a new gridded version of COOP data from the National Climatic Data Center, the CDDv2 data set (R. Vose, personal communication, July 27, 2012). Note that the annual time series is on a unique scale. Trends are not statistically significant for any season.
Precipitation anomaly (inches / year)
1895-01-01 00:00:00.0
2011-12-31 00:00:00.0
48.9375
42.0625
-111.063
-124.688
Northwest, Observed, CDDv2, Precipitation
Dataset #1
CDDv2
2 beta
Climate Division Database version 2
NOAA/NCDC
2011-06-06 00:00:00.0
ftp://ncdcftp/pub/upload/7days
QA for all elements...
N/A
Geographic coordinates (lat/lon)
Conterminous U.S.
1895-01-01 to present
Surface
5 km