Contiguous U.S. 60-Month Period Ending in May Average Temperature
Degrees Fahrenheit
1901-1949
-99
190005
51.49
-0.39
190105
51.64
-0.24
190205
51.78
-0.10
190305
51.63
-0.25
190405
51.69
-0.19
190505
51.42
-0.46
190605
51.28
-0.60
190705
51.21
-0.67
190805
51.36
-0.52
190905
51.56
-0.32
191005
51.75
-0.13
191105
51.94
0.06
191205
51.68
-0.20
191305
51.46
-0.42
191405
51.57
-0.31
191505
51.49
-0.39
191605
51.27
-0.61
191705
51.15
-0.73
191805
51.20
-0.68
191905
51.20
-0.68
192005
51.08
-0.80
192105
51.35
-0.53
192205
51.84
-0.04
192305
52.04
0.16
192405
51.86
-0.02
192505
52.11
0.23
192605
51.94
0.06
192705
51.95
0.07
192805
51.89
0.01
192905
51.83
-0.05
193005
51.73
-0.15
193105
51.81
-0.07
193205
52.00
0.12
193305
51.94
0.06
193405
52.62
0.74
193505
52.88
1.00
193605
52.67
0.79
193705
52.40
0.52
193805
52.69
0.81
193905
52.41
0.53
194005
52.28
0.40
194105
52.57
0.69
194205
52.62
0.74
194305
52.43
0.55
194405
52.26
0.38
194505
52.21
0.33
194605
52.15
0.27
194705
52.07
0.19
194805
52.02
0.14
194905
51.95
0.07