CORRELATION OF DISTRIBUTIONAL FEATURES. 



409 



Table 36. — Climatic extremes for the Carolinian zone — Con tinned. 



Plate Evaporation: 

 53 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 Normal P/E, year 



Vapor pressure: 



63 Norm£il mean, fs (hundredths inch) 



Humidity: 



65 Normal mean, fs (per cent 



66 Normal mean, year (per cent) 



Wind: 



68 Normal mean hourly velocity, fs (miles) . . 

 Sunshine: 



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 



Plate 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 43 

 44 

 45 



46 

 47 

 48 

 49 

 60 

 61 

 62 



53 

 54 



58 

 69 

 60 



63 



66 

 66 



68 



69 



70 

 71 



72 



Table 37. — Climatic extremes for the lower Sonoran zone. 



Temperature: 



Days in normal frostless season (fa) 



Hot days, fs 



Cold days, fa 



Remainder summation above 32°, year (thousands) . 



Remainder summation above 39°, fs (thousands) . . . 



Exponential summation, fa (hundreds) 



Physiological summation, fa (thousands) 



Absolute minimum 



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



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



Normal daily mean, year (°F.) 



Precipitation: 



Normal daUy mean, fs (inch) 



Normal No. rainy days (over 0.10 inch), fs 



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



Dry days, percentage of total, fs (per cent) 



Days in longest normal rainy period, fa 



Days in longest normal dry period, fa 



Mean total, year (inches) 



Evaporation: 



Daily mean, 1887-88, fa (inch) 



Total annual, 1887-88 (inches) 



Moisture ratios: 



Normal P/E, fs 



Normal ir/E, fs 



Normal P/E, year 



Vapor pressure: 



Normal mean, fs (hundredths inch) 



Humidity: 



Normal mean, fa (per cent) 



Normal mean, year (per cent) 



Wind: 



Normal mean hourly velocity, fs (miles) 



Sunshine: 



Normal total duration, fs (hours) 



Moisture-temperature indices: 



Normal P/E X T, fs, remainder method 



Normal P/E X T, fs, exponential method 



Normal P/E X T, fa, physiological method 



Low. 

 106 

 50 

 



11.5-« 



6,760 



599 



9.884 



-14 



42 



78.8-« 

 50 -• 



.017 

 

 160- 

 77 



25 -« 

 50« 

 10 -« 



104 

 40-'' 



08 

 13 

 10 -« 



300« 



40-'» 

 40-" 



6-<» 



2,100- 



l-« 

 l-« 

 l-a 



High. 

 331 

 197 

 



18+* 



10,071 



1,184 



20,640 



+32 



54 



78.8+« 

 70+* 



.083 



50 + 

 260 + 

 100 



26+" 

 260 +" 



30+" 



273 

 100" 



51 

 64 

 60+" 



600" 



70+" 

 72+" 



12+" 



2.900 + 



6+« 

 7" 

 13" 



