Local Climate Change: 45.81 N, 123.46 W

Country:	United States
Latitude:	45.8104 N
Longitude:	123.4615 W
Nearby Cities:	Portland, Vancouver, Gresham, Beaverton, Hillsboro, Tigard

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	-	-	0.56 ± 0.22	0.79 ± 0.11	1.27 ± 0.21	-1.62 ± 0.60
Washington	-	-	0.63 ± 0.22	0.84 ± 0.09	1.40 ± 0.22	-0.54 ± 0.41
Oregon	-	-	0.49 ± 0.25	0.79 ± 0.13	1.19 ± 0.19	-0.33 ± 0.29
Contiguous United States	-	0.66 ± 0.25	0.76 ± 0.18	0.87 ± 0.08	2.16 ± 0.16	2.76 ± 0.36
United States	-	0.69 ± 0.24	0.80 ± 0.16	0.89 ± 0.08	2.36 ± 0.13	2.42 ± 0.39
North America	-	0.82 ± 0.23	1.02 ± 0.18	1.11 ± 0.11	2.90 ± 0.19	4.72 ± 0.28
Northern Hemisphere	-	0.79 ± 0.16	0.96 ± 0.10	1.19 ± 0.05	2.56 ± 0.20	3.56 ± 0.20
Global Land	0.43 ± 0.18	0.79 ± 0.13	0.91 ± 0.08	1.11 ± 0.03	2.16 ± 0.11	2.78 ± 0.13

Temperature Record Months and Years

Seasonal Changes

Regional Climate Variability

Difference from Global Land Average ( °C, 95% range )

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 2.35	± 0.97	± 0.53	± 0.36	± 0.25

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.36	0.60	0.81	0.90	0.96

Variability in Monthly Means ( °C, 95% range )

Jan	Feb	Mar	Apr	May	Jun
± 3.52	± 3.08	± 2.61	± 2.10	± 2.08	± 1.84
Jul	Aug	Sep	Oct	Nov	Dec
± 1.64	± 1.57	± 1.75	± 1.82	± 2.51	± 2.84

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range