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Regional Climate Change: Northern Hemisphere
Northern Hemisphere Mean Temperature
[High Resolution Version] [Data Table]

Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Northern Hemisphere - 0.76
± 0.29		 0.91
± 0.16		 1.18
± 0.10		 2.53
± 0.22		 3.62
± 0.45
Global Land0.43
± 0.24		0.76
± 0.26		0.87
± 0.13		1.12
± 0.09		2.18
± 0.12		2.71
± 0.25

Regional Climate Variabiity

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

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 0.26 ± 0.12 ± 0.08 ± 0.06 ± 0.04

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.99 0.99 1.00 1.00 1.00

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

Jan Feb Mar Apr May Jun
± 1.48 ± 1.47 ± 1.33 ± 0.93 ± 0.76 ± 0.68
Jul Aug Sep Oct Nov Dec
± 0.70 ± 0.77 ± 0.85 ± 0.93 ± 1.19 ± 1.51

History of Temperature Stations

Northern Hemisphere Station Counts
[High Resolution Version]

Evolution of Climate Extremes

Mean of Daily High Temperature

Northern Hemisphere High Temperature
[High Resolution Version] [Data Table]

Mean of Daily Low Temperature

Northern Hemisphere Low Temperature
[High Resolution Version] [Data Table]
Northern Hemisphere
Northern Hemisphere Global Context Map Northern Hemisphere Local Context Map

Region Statistics

Land Area: 98,779,000 km2
Percent of Global Land Area: 67.13%

Temperature Stations in Region

Active Stations: 16,057
Former Stations: 16,937
Monthly Mean Observations: 13,242,854
Earliest Observation: November 1743

Within 500 km of Region

Active Stations: 17,150
Former Stations: 18,134
Monthly Mean Observations: 13,918,051
Earliest Observation: November 1743

Nearby Major Cities

Tokyo
Shanghai
Bombay
Karachi
Delhi
New Delhi

Long Temperature Stations

DE BILT AWS
UPPSALA UNIVERSITY
BERLIN-TEMPELHOF
GENEVA-COINTRIN
ST.PETERSBURG (VOEJKOVO)
STOCKHOLM/BROMMA
More stations...

Nearby Regions

Middle Africa
South-Eastern Asia
Eastern Africa
Africa
South America

Dataset Information

Dataset Updated: 27-Apr-2013 01:20:52
Temperature Sites: 39,298
Monthly Mean Observations: 15,161,923
Most Recent Month: March 2013
Earliest Month: January 1701
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