Contiguous U.S. 36-Month Period Ending in May Average Temperature
Degrees Fahrenheit
1901-1936
-99
189805
51.62
-0.14
189905
51.22
-0.54
190005
51.52
-0.24
190105
51.60
-0.16
190205
52.24
0.48
190305
51.85
0.09
190405
51.30
-0.46
190505
50.92
-0.84
190605
51.03
-0.73
190705
51.43
-0.33
190805
51.74
-0.02
190905
51.76
0.00
191005
51.83
0.07
191105
52.00
0.24
191205
51.62
-0.14
191305
51.26
-0.50
191405
51.13
-0.63
191505
51.52
-0.24
191605
51.69
-0.07
191705
50.92
-0.84
191805
50.76
-1.00
191905
51.02
-0.74
192005
51.40
-0.36
192105
51.93
0.17
192205
51.98
0.22
192305
52.37
0.61
192405
51.87
0.11
192505
51.85
0.09
192605
51.77
0.01
192705
52.14
0.38
192805
52.00
0.24
192905
51.68
-0.08
193005
51.49
-0.27
193105
51.63
-0.13
193205
52.43
0.67
193305
52.35
0.59
193405
53.03
1.27
193505
52.96
1.20
193605
52.84
1.08