Contiguous U.S. 18-Month Period Ending in August Average Temperature
Degrees Fahrenheit
1901-1950
-99
189608
54.78
-0.17
189708
54.61
-0.34
189808
55.02
0.07
189908
53.77
-1.18
190008
55.15
0.20
190108
55.50
0.55
190208
54.91
-0.04
190308
54.31
-0.64
190408
53.78
-1.17
190508
54.21
-0.74
190608
54.69
-0.26
190708
54.36
-0.59
190808
54.63
-0.32
190908
54.93
-0.02
191008
54.70
-0.25
191108
55.90
0.95
191208
53.86
-1.09
191308
53.99
-0.96
191408
55.03
0.08
191508
54.41
-0.54
191608
54.35
-0.60
191708
53.44
-1.51
191808
53.99
-0.96
191908
55.39
0.44
192008
54.14
-0.81
192108
55.33
0.38
192208
55.61
0.66
192308
55.02
0.07
192408
54.16
-0.79
192508
54.85
-0.10
192608
55.30
0.35
192708
54.88
-0.07
192808
54.80
-0.15
192908
54.29
-0.66
193008
55.06
0.11
193108
55.52
0.57
193208
55.84
0.89
193308
54.81
-0.14
193408
56.85
1.90
193508
56.32
1.37
193608
54.83
-0.12
193708
55.49
0.54
193808
55.72
0.77
193908
55.95
1.00
194008
55.63
0.68
194108
55.45
0.50
194208
55.21
0.26
194308
55.26
0.31
194408
54.91
-0.04
194508
54.79
-0.16
194608
55.28
0.33
194708
55.32
0.37
194808
54.76
-0.19
194908
54.87
-0.08
195008
54.92
-0.03