Contiguous U.S. December-January Average Temperature
Degrees Fahrenheit
1901-1989
-99
189601
31.60
0.35
189701
31.86
0.61
189801
30.72
-0.53
189901
29.18
-2.07
190001
32.87
1.62
190101
33.05
1.80
190201
30.77
-0.48
190301
30.84
-0.41
190401
29.05
-2.20
190501
29.56
-1.69
190601
31.94
0.69
190701
32.83
1.58
190801
33.58
2.33
190901
32.81
1.56
191001
27.61
-3.64
191101
32.42
1.17
191201
28.48
-2.77
191301
31.71
0.46
191401
33.92
2.67
191501
27.61
-3.64
191601
30.70
-0.55
191701
28.61
-2.64
191801
26.75
-4.50
191901
33.14
1.89
192001
29.01
-2.24
192101
33.75
2.50
192201
30.94
-0.31
192301
34.07
2.82
192401
31.12
-0.13
192501
28.34
-2.91
192601
31.41
0.16
192701
31.44
0.19
192801
30.10
-1.15
192901
29.63
-1.62
193001
28.75
-2.50
193101
32.08
0.83
193201
33.31
2.06
193301
31.86
0.61
193401
35.76
4.51
193501
32.09
0.84
193601
29.05
-2.20
193701
29.66
-1.59
193801
32.42
1.17
193901
34.06
2.81
194001
30.78
-0.47
194101
34.13
2.88
194201
32.98
1.73
194301
31.19
-0.06
194401
32.31
1.06
194501
30.58
-0.67
194601
30.24
-1.01
194701
33.98
2.73
194801
30.40
-0.85
194901
29.25
-2.00
195001
31.85
0.60
195101
31.61
0.36
195201
31.62
0.37
195301
34.94
3.69
195401
32.30
1.05
195501
31.63
0.38
195601
31.36
0.11
195701
31.65
0.40
195801
34.30
3.05
195901
30.86
-0.39
196001
32.70
1.45
196101
30.06
-1.19
196201
29.02
-2.23
196301
28.92
-2.33
196401
29.72
-1.53
196501
31.92
0.67
196601
31.12
-0.13
196701
32.89
1.64
196801
30.51
-0.74
196901
29.71
-1.54
197001
30.30
-0.95
197101
31.50
0.25
197201
31.96
0.71
197301
29.73
-1.52
197401
32.36
1.11
197501
33.00
1.75
197601
32.11
0.86
197701
27.01
-4.24
197801
29.57
-1.68
197901
25.85
-5.40
198001
33.58
2.33
198101
33.80
2.55
198201
29.94
-1.31
198301
34.47
3.22
198401
27.15
-4.10
198501
30.43
-0.82
198601
31.75
0.50
198701
32.94
1.69
198801
31.17
-0.08
198901
33.78
2.53