Local Climate Change: 40.99 N, 121.42 W

Country:	United States
Latitude:	40.9885 N
Longitude:	121.4201 W
Nearby Cities:	Redding, Susanville, Anderson, Shasta Lake

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	-	-	0.43 ± 0.27	0.83 ± 0.19	1.30 ± 0.16	0.53 ± 0.87
California	-	-	0.47 ± 0.26	0.99 ± 0.14	1.76 ± 0.13	0.83 ± 0.39
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
	± 2.82	± 1.09	± 0.58	± 0.45	± 0.36

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.27	0.50	0.76	0.85	0.89

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

Jan	Feb	Mar	Apr	May	Jun
± 3.41	± 3.42	± 3.06	± 3.03	± 2.94	± 2.54
Jul	Aug	Sep	Oct	Nov	Dec
± 2.09	± 2.08	± 2.36	± 2.52	± 2.56	± 2.96

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range