CORRELATION OF DISTRIBUTIONAL FEATURES. 



407 



Table 33. — Climatic extremes for the transition zone — Continued. 



Plate 

 63 

 54 



58 

 69 

 60 



63 



66 

 66 



68 



69 



70 

 71 

 72 



Evaporation: 



Daily mean, 1887-88, fs (inch) 



Total annual, 1887-88 (inches) 



Moisture ratios: 



Normal P/E, fs 



Normal ir/E, fa , 



Normal P/E, year 



Vapor pressure: 



Normal mean, fs (hundredths inch) 



Humidity: 



Normal mean, fs (per cent , 



Normal mean, year (per cent) , 



Wind: 



Normal mean hourly velocity, fs (miles) . . 

 Sunshine: 



Normal total duration, fa (hours) 



Moiature-tetnperature indices: 



Normal P/E X T, fs, remainder method . . , 



Normal P/E X T, fs exponential method . . 



Normal P/E XT, fs, physiological method 



Table 34. — Climatic extremes for the Alleghanian zone. 



Plate Temperature: 



34 Days in normal frostless season (Js) 



35 Hot days, fs 



36 Cold days, fs 



37 Remainder summation above 32°, year (thousands) 



38 Remainder siommation above 39°, fs (thousands) . . , 



39 Exponential summation, fs (hundreds) 



40 Physiological simamation, fa (thousands) 



41 Absolute minimum , 



43 Normal daily mean, coldest 14 days of year (°F.) . . 



44 Normal daily mean, hottest 6 weeks of year (°F.) . , 



45 Normal daily mean, year (°F.) 



Precipitation: 



46 Normal daily mean, fa (inch) 



47 Normal No. rainy days (over 0.10 inch), fa 



48 Normal No. dry days (0.10 inch or less), fs 



49 Dry days, percentage of total, fa (per cent) 



60 Days in longest normal rainy period, fa 



61 Days in longest nonnal dry period, fs 



62 Mean total, year (inches) 



Evaporation: 



63 Daily mean, 1887-88, fa (inch) 



64 Total annual, 1887-88 (inches) 



Moisture ratios: 



68 Normal P/E, fs 



69 Normal v/E, fs 



60 Nonnal P/E, year 



Vapor pressure: 



63 Normal mean, fs (hundredths inch) 



Humidity: 



65 Normal mean, fa (per cent) 



66 Normal mean, year (per cent) 



Wind: 



68 Normal mean hourly velocity, fa (miles) 



SuTishine: 



69 Normal total duration, fs (hours) ". 



Moisture-temperature indices: 



70 Normal P/E X T, fs, remainder method 



71 Normal P/E X T, fs, exponential method 



72 Normal P/E X T, fs, physiological method 



Low. 

 106 

 

 



10-0 

 2,606 

 299 

 2,102 

 -69 

 

 64.4-0 

 40 -o 



.093 

 25 

 60 

 17 

 250 

 25-0 

 200 



.084 



200 



66 

 82 

 6O0 



405 



6O0 

 70O 



60 



1,225 



20 

 20 

 30 



High. 

 211 

 128 

 150 



11.5+0 



5,238 



646 



10,886 



-4 



40 



71. 6+0 



66+0 



1.31 

 150 

 100 



83 

 1250 

 750 

 60 +0 



1.66 

 6O0 



1.31 

 1.63 

 1.80« 



428 



8O0 

 8O0 



120 



1,836 



60 



6+0 

 100 



