City of St. Petersburg

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
City of St. Petersburg	0.48 ± 0.31	0.78 ± 0.29	1.08 ± 0.15	1.18 ± 0.16	3.06 ± 0.34	3.00 ± 0.57
Leningrad	0.48 ± 0.30	0.80 ± 0.28	1.11 ± 0.14	1.24 ± 0.16	3.14 ± 0.28	3.34 ± 0.55
Russia	-	0.90 ± 0.23	1.15 ± 0.25	1.57 ± 0.20	3.39 ± 0.28	3.47 ± 0.40
Asia	-	0.82 ± 0.18	1.00 ± 0.15	1.35 ± 0.09	2.57 ± 0.24	3.13 ± 0.25
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
	± 4.23	± 1.73	± 0.77	± 0.49	± 0.30

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.44	0.54	0.77	0.87	0.93

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

Jan	Feb	Mar	Apr	May	Jun
± 7.04	± 6.71	± 5.03	± 3.31	± 3.45	± 3.09
Jul	Aug	Sep	Oct	Nov	Dec
± 2.97	± 2.89	± 2.81	± 3.53	± 4.30	± 6.20

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range