valleys ; somewhat cooler than normal over the Atlantic coast 

 States from Virginia northward; weekly means were from 

 6° to 10° low over the western States. The rain area over the 

 lower Ohio valley at the end of the previous week moved east- 

 ward to middle Atlantic coast by Tuesday morning. A gen- 

 eral low-pressure area prevailed over the northern districts, 

 from the Rockies to the Pacific coast, and moved eastward 

 into the Plains region Friday and Saturday. Heavy rains 

 occurred in portions of the Gulf and south Atlantic States, 

 precipitation ranging from 2 to 4 inches for the week in 

 eastern Texas, the middle Gulf States, and from North Da- 

 kota eastward to northern Michigan. 'No rain occurred in 

 northeastern New England, in portions of Missouri, Kansas, 

 western Kentucky, and generally over the southwest. 



Week ending May IS. — Only slight changes in tempera- 

 ture were the rule in nearly all parts of the country in the 

 early part of the week. Warm weather continued over dis- 

 tricts east of the Mississippi, hut in the northern Eocky 

 Mountain regions it continued cold, with heavy frosts in high 

 localities. By the middle of the week the western districts 

 grew warmer, and the cooler weather advanced into the cen- 

 tral valleys. Eastward from the Rocky Mountains the latter 

 part of the week was moderately cool. The average tempera- 

 ture for the week as a whole was slightly above normal in 

 the Mississippi valley, and more so in the districts to the 

 eastward, the regions from Georgia to the interior of New 

 England, over the south Atlantic and east Gulf States and in 

 the Lake region. Heavy local rains occurred Monday and 

 Tuesday throughout the southern and eastern portions of the 

 country, while west of the Mississippi was without rain. 

 Near the middle of the week cloudy weather developed be- 

 tween the Rocky Mountains and the Mississippi, which by 

 Saturday concentrated in a severe storm over Missouri. This 

 reached the St. Lawrence valley by Monday, but with 

 greatly decreased energy. The latter part of the week was 

 mostly without precipitation west of the Mississippi, except 

 that heavy snows fell in the middle Rocky Mountain region. 

 The precipitation for the week was heavy throughout the 



