Local Climate Change: 39.38 N, 106.13 W

Country:	United States
Latitude:	39.3836 N
Longitude:	106.1272 W
Nearby Cities:	Arvada, Boulder, Ken Caryl, Lafayette, Louisville, Golden

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	-	0.61 ± 0.29	0.66 ± 0.17	1.08 ± 0.16	1.93 ± 0.27	2.07 ± 0.75
Colorado	-	0.61 ± 0.27	0.67 ± 0.16	0.99 ± 0.09	1.99 ± 0.20	2.72 ± 0.40
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
	± 2.80	± 1.03	± 0.49	± 0.37	± 0.27

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.37	0.61	0.84	0.90	0.94

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

Jan	Feb	Mar	Apr	May	Jun
± 3.61	± 3.78	± 3.50	± 2.88	± 2.34	± 2.21
Jul	Aug	Sep	Oct	Nov	Dec
± 1.64	± 1.58	± 2.12	± 2.42	± 3.51	± 3.79

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range