California 24-Month Period Ending in September Average Temperature
Degrees Fahrenheit
189709
57.1
189809
56.8
189909
56.5
190009
56.8
190109
57.0
190209
57.0
190309
56.3
190409
56.6
190509
57.6
190609
57.2
190709
56.6
190809
56.6
190909
56.6
191009
56.6
191109
56.6
191209
55.8
191309
55.7
191409
56.8
191509
57.1
191609
56.6
191709
55.7
191809
56.3
191909
57.2
192009
56.4
192109
56.2
192209
56.5
192309
56.5
192409
56.9
192509
57.2
192609
57.5
192709
57.7
192809
57.6
192909
57.1
193009
57.0
193109
58.2
193209
57.6
193309
56.2
193409
58.0
193509
58.8
193609
57.8
193709
57.4
193809
57.3
193909
57.8
194009
58.4
194109
58.2
194209
57.0
194309
57.3
194409
57.2
194509
56.7
194609
57.2
194709
57.3
194809
56.6
194909
55.7
195009
56.4
195109
57.9
195209
57.4
195309
56.7
195409
57.4
195509
56.9
195609
56.6
195709
57.3
195809
57.5
195909
58.5
196009
59.0
196109
58.3
196209
57.3
196309
57.0
196409
56.9
196509
56.6
196609
57.3
196709
57.7
196809
57.8
196909
57.6
197009
57.6
197109
57.4
197209
57.0
197309
56.9
197409
57.1
197509
57.0
197609
56.6
197709
57.3
197809
58.1
197909
57.8
198009
57.5
198109
58.7
198209
58.3
198309
56.9
198409
58.0
198509
58.1
198609
57.7
198709
58.3
198809
58.4
198909
58.4
199009
58.3
199109
57.9
199209
58.6
199309
58.7
199409
58.2
199509
58.0
199609
58.7
199709
59.8
199809
58.2
199909
57.0
200009
58.3
200109
59.1
200209
58.8
200309
59.2
200409
59.4
200509
58.6
200609
58.5
200709
59.0
200809
58.8
200909
59.0
201009
58.4
201109
57.5
201209
58.4
201309
59.3
201409
60.1
201509
61.1
201609
60.8
201709
59.9
201809
60.2
201909
59.5