410 



COKRELATION OF DISTRIBUTIONAL FEATURES. 



Table 38. — Climatic extremes for the Austroriparian zone. 



Plate 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 43 

 44 

 45 



46 

 47 

 48 

 49 

 50 

 61 

 52 



53 



54 



58 

 69 

 60 



63 



65 

 66 



68 



69 



70 

 71 



72 



Temperature: 



Days in normal frostless season (fs) 



Hot days, fs 



Cold days, fs 



Remainder summation above 32°, year (thousands) 



Remainder summation above 39°, fs (thousands) 



Exponential summation, fs (hundreds) 



Physiological summation, fs (thousands) 



Absolute minimvma 



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 daily mean, fs (inch) 



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



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



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



Days in longest normal rainy period, fs 



Days in longest normal dry period, fs 



Mean total, year (inches) 



Evaporation: 



Daily mean, 1887-88, fs (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, fs (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 ^, fs, remainder method 



Normal P/E X T, fs, exponential method 



Normal P/E X T, fs, physiological method 



Low. 

 187 

 128 

 



18-" 



6,279 



673 



11,879 



-31 



32 



78.8-0 

 60 -» 



.080 

 50 

 25- 





 25<» 

 25<' 

 30-" 



96 

 40 -« 



51 

 54 

 60 -« 



450" 



70-0 

 70 -o 



1,895 



4-0 



High. 

 289 

 197 

 22 



18+0 



9,355 



1,028 



19,202 



+ 16 



51 



78.8+0 

 70 +0 



.170 



250 



250O 

 78 



250" 

 750 

 50+0 



169 

 50 +0 



176 

 196 

 I8OO 



600 



80 +0 

 80 +0 



120 



2,343 



13+0 



140 



200 



Plate 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 43 

 44 

 45 



46 

 47 

 48 

 49 

 50 

 61 

 62 



Table 39. — Climatic extremes for gulf strip of lower Austral zone. 



Temperature: 



Days in normal frostless season (fs) 



Hot days, fs 



Cold days, fs 



Remainder summation above 32°, year (thousands) 



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



Exponential summation, fs (hundreds) 



Physiological simamation, fs (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 daily 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, fs 



Days in longest normal dry period, fs 



Mean total, year (inches) 



