Local Climate Change: 40.99 N, 93.73 W

Country:	United States
Latitude:	40.9885 N
Longitude:	93.7278 W
Nearby Cities:	Des Moines, West Des Moines, Ankeny, Urbandale, Newton, Clive

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	0.48 ± 0.27	0.82 ± 0.30	1.05 ± 0.20	0.72 ± 0.10	2.28 ± 0.16	3.84 ± 0.57
Iowa	0.49 ± 0.26	0.85 ± 0.29	1.12 ± 0.19	0.81 ± 0.11	2.39 ± 0.15	4.18 ± 0.60
Missouri	0.45 ± 0.26	0.73 ± 0.33	0.89 ± 0.21	0.65 ± 0.10	2.24 ± 0.22	3.62 ± 0.50
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

Regional Climate Variability

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

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 3.62	± 1.31	± 0.60	± 0.41	± 0.32

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.46	0.65	0.84	0.90	0.92

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

Jan	Feb	Mar	Apr	May	Jun
± 5.52	± 5.37	± 4.70	± 3.41	± 3.14	± 2.69
Jul	Aug	Sep	Oct	Nov	Dec
± 2.64	± 2.58	± 2.76	± 3.45	± 3.78	± 5.04

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range