Country: United States
Latitude:47.4179 N
Longitude:110.1316 W
Nearby Cities:Great Falls

Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Current Location - 0.78
± 0.28
0.94
± 0.27
1.19
± 0.08
1.83
± 0.23
1.48
± 0.40
Montana - 0.78
± 0.27
0.93
± 0.22
1.15
± 0.08
1.89
± 0.23
1.74
± 0.45
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

Local Climate Variabiity

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

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 4.25 ± 1.40 ± 0.55 ± 0.36 ± 0.19

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.43 0.63 0.86 0.93 0.98

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

Jan Feb Mar Apr May Jun
± 7.11 ± 6.60 ± 5.13 ± 3.73 ± 3.00 ± 2.91
Jul Aug Sep Oct Nov Dec
± 2.51 ± 2.62 ± 3.21 ± 3.60 ± 4.97 ± 5.80

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature