WEATHER AND CRANBERRY PRODUCTION 



Table 1. — Weather Chiefly Affecting the Keeping of 

 Massachusetts Cranberries. 



1889 



1912 

 1913 

 1914 

 1915 



1916 

 1917 

 1918 

 1919 

 1920 



1921 

 1922 

 1923 

 1924 

 1925 



1926 

 1927 

 1928 

 1929 

 1930 



1931 

 1932 

 1933 

 1934 

 1935 



1936 

 1937 

 1938 

 1939 

 1940 



1941 

 1942 

 1943 

 1944 

 1945 



1946 

 1947 



• The figures in these three columns indicate the positions relative to the averages, not numbers 

 of hours. 



2 Average hours of sunshine at Boston, from Annual Meteorological Summary of the Weather 

 Bureau for Boston for 1946: Annual, 2562; February, 166; March, 213. 



» Averages of temperature and rainfall taken as in Tables 11 and 12 of Mass. Agr. Expt. Sta 

 Bui. 433. The temperature thresholds used here are March, 34°; April, 44°; May, 56°; June, 64° F' 



* Most of these appraisals are from page 36 of Bulletin 433. 



'Appraisals notably inconsistent with the summations. In 1915, 1921, and 1930 the incon- 

 sistencies were piobably caused by the devastating effect of extremely high temperatures backed 

 by excessive sunlight and drouth in September. The inconsistencies of 1938^ 1944, and 1947 are 

 probably due to the efTect of these factors operating together in August. The Howes inconsistency 

 of 1927 may be a result of the very high mean temperatures of October and November that year. 

 The 1926 Howes appraisal seems unsound. 



' Appraisab by the writer after extensive investigation. 



