Local Climate Change: 40.99 N, 78.82 W

Country:	United States
Latitude:	40.9885 N
Longitude:	78.8166 W
Nearby Cities:	Altoona, State College, Plum, Johnstown, West Mifflin, Greensburg

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	0.45 ± 0.22	0.74 ± 0.23	0.97 ± 0.18	0.99 ± 0.12	2.79 ± 0.18	3.51 ± 0.53
Pennsylvania	0.47 ± 0.22	0.78 ± 0.22	1.00 ± 0.17	1.01 ± 0.11	2.79 ± 0.19	3.63 ± 0.41
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
	± 3.22	± 1.11	± 0.54	± 0.37	± 0.25

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.38	0.66	0.85	0.91	0.94

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

Jan	Feb	Mar	Apr	May	Jun
± 4.65	± 4.40	± 4.04	± 2.79	± 2.83	± 2.35
Jul	Aug	Sep	Oct	Nov	Dec
± 2.23	± 2.02	± 2.44	± 2.88	± 3.01	± 4.09

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range