Pacific Northwest Basin May-January Average Temperature
Degrees Fahrenheit
1901-1989
-99
189601
46.1
-1.0
189701
46.4
-0.7
189801
46.9
-0.2
189901
46.4
-0.7
190001
46.6
-0.5
190101
47.2
0.1
190201
47.4
0.3
190301
46.3
-0.8
190401
46.6
-0.5
190501
48.2
1.1
190601
46.2
-0.9
190701
47.0
-0.1
190801
47.2
0.1
190901
46.0
-1.1
191001
45.5
-1.6
191101
47.4
0.3
191201
45.4
-1.7
191301
45.2
-1.9
191401
47.1
0.0
191501
46.3
-0.8
191601
45.5
-1.6
191701
43.7
-3.4
191801
48.8
1.7
191901
47.6
0.5
192001
45.6
-1.5
192101
46.7
-0.4
192201
46.0
-1.1
192301
47.6
0.5
192401
46.9
-0.2
192501
46.6
-0.5
192601
47.9
0.8
192701
47.6
0.5
192801
46.5
-0.6
192901
46.2
-0.9
193001
45.9
-1.2
193101
46.4
-0.7
193201
46.8
-0.3
193301
46.6
-0.5
193401
49.0
1.9
193501
48.8
1.7
193601
46.7
-0.4
193701
46.6
-0.5
193801
49.0
1.9
193901
48.3
1.2
194001
49.0
1.9
194101
49.1
2.0
194201
47.1
0.0
194301
47.0
-0.1
194401
46.8
-0.3
194501
47.5
0.4
194601
47.2
0.1
194701
46.4
-0.7
194801
47.8
0.7
194901
44.1
-3.0
195001
46.7
-0.4
195101
47.7
0.6
195201
46.0
-1.1
195301
48.7
1.6
195401
47.8
0.7
195501
46.5
-0.6
195601
46.2
-0.9
195701
46.0
-1.1
195801
47.8
0.7
195901
49.9
2.8
196001
46.2
-0.9
196101
47.8
0.7
196201
47.1
0.0
196301
47.0
-0.1
196401
48.1
1.0
196501
46.5
-0.6
196601
47.3
0.2
196701
48.8
1.7
196801
48.6
1.5
196901
46.3
-0.8
197001
48.1
1.0
197101
47.3
0.2
197201
46.2
-0.9
197301
46.5
-0.6
197401
47.6
0.5
197501
48.0
0.9
197601
47.2
0.1
197701
46.9
-0.2
197801
47.8
0.7
197901
44.6
-2.5
198001
48.2
1.1
198101
48.1
1.0
198201
47.5
0.4
198301
47.1
0.0
198401
46.5
-0.6
198501
45.3
-1.8
198601
45.6
-1.5
198701
47.7
0.6
198801
48.6
1.5
198901
48.5
1.4