REMARKS 



The weather during the month was cold and cloudy giving 

 a very backward season. The mean hourly temperature was 55 

 degrees. This is 2.6 less than the normal. No such low mean 

 temperature was obtained for May at this station from 1889 

 until 1917. In May 1917 the mean temperature was 49.3. 

 Since then other low temperatures for May have been: 1920, 

 54.6; 1924, 53.5; 1925, 54 6; and 1927, 53.2 degrees. The 

 minimum temperature was 31 degrees on the 14th. The normal 

 minimum temperature for May is 30.5 degrees. The maximum 

 temperature was 80.5 degrees on the 17th. The normal maxi- 

 mum is 87.0 degrees. However, during the last four years no 

 high temperatures have been recorded during May. In 1924 the 

 maximum was 74.0; in 1925; 80.0; in 1926, 80.0; and in 1927, 

 75 degrees. 



In srite of the rainy weather, the total precipitation was 

 slightly less than normal for May. The total rainfall was 3.25 

 inches, while the normal is 3.74 inches. The barometer was 

 slightly lower than normal and showed the average range. The 

 mean dew point was slightly lower than normal and the mean 

 humidity of 77.1 per cent is 8.2 per cent higher than normal. 

 The wind movement was less than normal and the month had 

 relatively few windstorms. The prevailing direction was 

 northwest. 



Errata. — The record for precipitation for the month of April, 

 reported in bulletin 472, is corrected to read as follows: 3rd .02; 

 8th .02; nth .29; 12th .38; 14th .30; 21st .30; 22nd 1.25; 

 23rd .45; 24th .20; 27th .10; 28th .80; 30th .05. The total 

 precipitation for the month was 4.16 inches. 



C. I. GUNNES^, Meteorologist 

 H. BAUMGARTNER, Observer. 



