Local Climate Change: 39.38 N, 122.77 W

Country:	United States
Latitude:	39.3836 N
Longitude:	122.7746 W
Nearby Cities:	Chico, Windsor, Ukiah, Clearlake, Red Bluff, Healdsburg

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	-	-	0.45 ± 0.28	0.92 ± 0.17	1.47 ± 0.15	-0.11 ± 0.31
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

Local Climate Variabiity

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

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 2.38	± 0.98	± 0.57	± 0.46	± 0.38

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.25	0.49	0.74	0.83	0.87

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

Jan	Feb	Mar	Apr	May	Jun
± 2.42	± 2.61	± 2.72	± 2.65	± 2.59	± 2.14
Jul	Aug	Sep	Oct	Nov	Dec
± 1.71	± 1.66	± 2.04	± 2.21	± 2.08	± 2.25

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range