44 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I05 



RED BLUFF (REDDING) 

 Site. 



Observations 1931 through 1933 made at Red Bluff; 1934-1935 at 

 Redding; and 1936- 1940 at Redding Airport. 



Comparison of data — temperature 



Mean for 5 years : Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Year 



1931-1935 iCi.d 50.0 56.3 61.4 68.3 76.5 83.1 82.4 75.8 65.8 56.4 45.6 63.8 



1936-1940 45.6 47.1 54.0 60.2 68.8 76.5 83.0 82.3 75.1 65.9 56.4 50.3 63.8 



2d period compared 



with 1st —0.3 -2.9 -2.3 -1.2 +0.5 0.0 —0.1 —0.1 —0.7 +0.1 0.0 +4.7 0.0 



SACRAMENTO 



Comparison of data — temperature 



Mean for 5 years : Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Doc. Year 



1931-1935 45.5 50.5 56.2 60.3 65.1 71.1 76.0 75.0 70.8 64.3 54.4 45.6 61.2 



1936-1940 45.9 50.0 54.9 60.1 66.6 72.6 76.2 75.5 72.2 64.6 54.2 48.5 61.8 



2d period compared 



with 1st +0.4 —0.5 —1.3 -0.2 +1.5 +1.5 +0.2 +0.5 +1.4 +0.3 -0.2 +2.9 +0.6 



NORTH ATLANTIC 

 AZORES 



Authority. 



Servigo Meteorologico dos Agores, J. Agostinho, Director, Angra 

 do Heroismo, Azores. 

 Stations. 



Horta and Ponta Delgada. 



PONTA DELGADA 



Remarks. 



The remarks on page 82 of World Weather Records (Smith- 

 sonian Misc. Coll., vol. 79) are good until December 31, 

 1936. Beginning January i, 1937, the observatory was 

 changed to a new place, whose conditions are as follows : 



The thermometers are placed in a Stevenson screen 1.8 m. above 

 the ground. The height of the rain gage (Standard Babinet, 

 I sq. dm. of area) is 1.5 m. above the ground. 



Precipitation at this new site (R — Relvao) was compared before 

 1937 with the precipitation at the former site (G — Graga), 

 and it was found to be 23 percent greater. 



As to the manner in which the means were obtained, there is no 

 change. Observations are now made at 6'', 11'', 16'', and 22^", 



