566 



IOWA DEPARTMENT OF AGRICULTURE' 



Miscellaneous Phenomena. Aurora, 2d, 7th, 8th, 25th, 29th, 31st. Fog, 

 1st, 8th, 9th, 10th, 12th, 13th, 14th, 16th, 17th, 18th, 19th, 20th, 21st, 22d, 

 29th, 30th. Hail, 1st, 30th. Halos (lunar or solar), 1st, 2d, 7th, 15th, 16th, 

 17th, 19th, 25th, 31st. Parhelia, 31st. Sleet, 1st, 30th. Thunderstorms, 

 2d, 8th, 9th. 



COMPARATIVE DATA FOR THE STATE— DECEMBER. 



TEAR 



1890. 

 1891. 

 1892. 

 1893. 

 1894. 

 1895. 

 1896. 

 1897. 

 1898. 

 1899. 

 1900. 

 1901. 

 1902. 

 1903. 

 1904. 

 1905. 

 1906. 

 1907. 

 1908. 

 1909. 

 1910. 

 1911. 

 1912. 

 1913. 

 1914. 

 1915. 

 1916. 

 1917. 

 1918. 



Temperature 



29.1 

 32.3 

 18.9 

 22.0 

 30.1 

 25.4 

 30.8 

 18.0 

 18.1 

 22.6 

 26.9 

 20.5 

 20.1 

 19.6 

 23.4 

 27.0 

 25.7 

 28.8 

 27.2 

 15.1 

 23.4 

 27.9 

 29.2 

 32.0 

 15.7 

 25.0 

 18.7 

 14.5 

 32.7 



+ 5.2 

 + 8.4 



— 5.0 



— 1.9 

 + 6.2 

 + 1.5 

 + 6.9 



— 5.9 



— 5.8 



— 1.3 

 + 3.0 



— 3.4 



— 3.8 



— 4.3 



— 0.5 

 + 3.1 

 + 1.8 

 + 4.9 

 + 3.3 



— 8.8 



— 0.5 

 + 4.0 

 + 5.3 

 + 8.1 



— 8.2 

 + 1.1 



— 5.2 



— 9.4 

 + 8.8 



T. indicates an amount too small to measure, or less than .005 inch precipita- 

 tion and less than .05 inch snowfall. 



