The average June 17 temperature at Santa Barbara, California is 74F, but on June 17, 1917 temperatures reached 115F. There were massive forest fires raging and 50 square miles burned.
19 Jun 1917, 1 – Modesto Morning Herald at Newspapers.com
17 Jun 1917, 1 – The San Francisco Examiner at Newspapers.com
23 Jun 1917, 1 – The Santa Maria Times at Newspapers.com
This was nowhere near as hot as June 17, 1859 when Santa Barbara reached 133F – a few weeks before the largest solar storm ever recorded.
29 Jun 1859, 4 – The Sacramento Bee at Newspapers.com
31 Aug 1859, Page 2 – Detroit Free Press at Newspapers.com
14 Sep 1859, Page 1 – The Louisville Daily Courier at Newspapers.com