710 



IOWA DEPARTMENT OF AGRICULTURE 



27th, 28th, 29th, 30th. Frost, killing, Northern Division— 10th, 11th, 12th, 

 16th, 17th, 19th, 21st, 23d, 24th, 25th, 26th, 27th, 28th, 29th, 31st; Central 

 Division— 10th, 11th, 12th, 16th, 17th, 18th, 20th, 21st, 22d, 25th, 26th, 28th, 

 29th, 31st; Southern Division— 11th, 12th, 16th, 17th 21st, 26th, 28th, 29th. 

 Hail, 3d, 24th. Halos (Lunar or Solar), 4th, 11th. Rainbow, 4th, 18th, 

 19th. Sleet 26th. Thunderstorms, 1st, 2d, 3d, 4th, 5th, 8th, 9th, 10th, 15th, 

 16th, 18th, 19th, 20th, 21st, 24th, 25th, 26th, 27th, 28th, 29th, 30th, 31st. 



Rivers. A moderate rise occurred on the Missouri River on the 2d 

 and after the passing of the crest the stage remained nearly stationary the 

 rest of the month. On the Mississippi and interior rivers a sharp rise occur- 

 red during the first week, due to heavy rain over most eastern and north- 

 central sections, after which falling stages were the rule. 



COMPARATIVE DATA FOB THE STATE— OCTOBER. 



T indicates an amount too small to measure, or less than 

 tion, and less than .05 inch snowfall. 



.005 inch precipita- 



INTENSE RAINSTORM OF OCTOBER 4, 1919, AT DUBUQUE 



By James H. Spencer, Meteorologist. 



Weather Bureau, Dubuque, Iowa, October 20, 1919. 

 On October 4th Dubuque was again visited, for the second time during 

 1919, by a rainstorm of great intensity. The fall within an hour (2.66 

 inches) has been exceeded since the beginning of record 46 years ago, only 



