There was a large solar storm on May 15 of that year.
(PDF) The 1859 space weather event revisited: Limits of extreme activity
15 May 1921, 7 – Austin American-Statesman at Newspapers.com
15 May 1921, 1 – Chattanooga Daily Times at Newspapers.com
15 May 1921, 55 – The San Francisco Examiner at Newspapers.com
One hundred years ago there was a worldwide drought and famine, and the San Francisco Examiner devoted three pages to an explanation of how the drought was linked to behavior of the planets and the sun.
“THE SAN FRANCISCO EXAMINER SUNDAY. NOVEMBER 20, 1921
RUSSIA’S SUFFERING. But it is in Russia, along the fertile wheat fields of the Volga, which used to feed not only Russia and neighboring countries, but the whole of Europe, that we see the worst famine. The vast valley of the Volga, from Samara to Penn, is reduced to a state of desolation—with from twenty to forty million lives .endangered by famine, and millions, of men, women and children migrating, in various directions, in the hope of finding food. The water from springs and wells is utterly exhausted, and the country dried up and cracked open to a great depth, owing to the absence of rain for six months, from March to September. No such drought and famine has ever before afflicted Russia; and the governments of Europe and America are exerting themselves to succor millions of destitute and starving Russians.”
20 Nov 1921, 51 – The San Francisco Examiner at Newspapers.com
04 Sep 1921, 61 – New York Herald at Newspapers.com
16 Oct 1921, 104 – The San Francisco Examiner at Newspapers.com
TimesMachine: October 3, 1921 – NYTimes.com
09 Aug 1921 – Dangerous Mountaineering. – Trove
ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/mwr/050/mwr-050-11-0589a.pdf
in 1922, the ice between Alaska and the North Pole was thin, rotten first year ice.
29 Jan 1922, Page 35 – The St. Louis Star and Times at Newspapers.com
The Arctic was rapidly melting, and there was no ice around Svalbard.
03 Dec 1922, Page 63 – The Washington Times at Newspapers.com
29 Dec 1923, Page 5 – at Newspapers.com
12 Apr 1924, 7 – Spokane Chronicle at Newspapers.com
12 Nov 1924, Page 19 – The San Bernardino County Sun at Newspapers.com
Arctic winter temperatures warmed 16 degrees from 1910 to 1939.
29 Sep 1939 – What is The World Coming To? – Trove
The glaciers of Greenland and Norway were facing catastrophic collapse.
17 Dec 1939, Page 15 – Harrisburg Sunday Courier
The Present Climatic Fluctuation on JSTOR
Disney To Make Climate Change Film On Svalbard This Spring
CICE_combine_thick_SM_EN_20200328.png (758×631)
NASA shows 1921 as being one of the coldest years on record and that the summer of 1921 was well below normal temperature.
Data.GISS: GISS Surface Temperature Analysis (v4): Global Maps
Global Warming Has Begun, Expert Tells Senate – The New York Times
U.S. Data Since 1895 Fail To Show Warming Trend – NYTimes.com
In 1989, the head of NOAA’s National Climatic Data Center said that earth cooled from 1921 to 1979. Now they show lots of warming during that period.
Analysis of warming since 1881 shows most of the increase in global temperature happened before 1919 — before the more re-cent sharp rise in the amount of carbon dioxide in the atmosphere. said Thomas Karl, of the National Oceanic and Atmospheric Administration’s National Climatic Data Center in Asheville, N.C. While global climate warmed overall since 1881, it actually cooled from 1921 to 1979, Karl said
07 Dec 1989, Page 14 – Santa Cruz Sentinel at Newspapers.com
NOAA has since altered their data, and now shows cooling from 1880 to 1919 and warming from 1921 to 1979.
Climate at a Glance | National Centers for Environmental Information (NCEI)
Climate at a Glance | National Centers for Environmental Information (NCEI)