THE METEOROLOGY OF EDINBURGH. 



207 



imperature Observations — continued. 



Table XXVII. Comparison of Variability 

 of Temperature from 

 Observations deduced 

 from different data, 

 „ XXVIII. Temperature Variability 

 at Hawkhill and Kirk- 

 caldy, 1776-1777, 



PAGE 



142 



142 



IlNFALL, . . • • . . 143-147 



Table XXIX. Montblyand Annual Rain- 

 fall for 120J Years, . 143 



„ XXX. Droughts of more than 14 



Days, . . .146 



„ XXXI. Daily Rainfalls of an inch 



or more, . .147 



^ nd Observations, . . . 148-162 



Table XXXII. Number of Days the Wind 

 blew from the Eight 

 Principal Directions for 

 each Month during 138 

 Years, . . .148 



„ XXXIII. Mean Monthly Percent- 

 ages, 1764-1896, . 161 

 „ XXXIV. Decennial Means, . . 161 

 „ XXXV. Mean Annual Percentage 

 Frequency of East and 

 West Winds, 1764-1896, 



K 



162 



^-Instrumental Phenomena, 1770-1896, 163-181 

 Table XXXVI. Days with Thunderstorms, 163 

 „ XXXVII. Diurnal Distribution of 



Thunderstorms, . .166 



„ XXXVIII. Days with Snow, . . 167 



„ XXXIX. Date of First and Last 



Snow by Winters, . 169 



„ XL. Days with Hail, . .170 



„ XLI. Days with Gales, . .173 



„ XLII. Days with Mist or Fog, . 176 



XLIII. Auroras, 1773-1781 and 



1800-1896, . . 179 



XLIV. Days with Silent Light- 

 ning, . 



OL. XXXIX. PART I. ( NO. 6). 



PAGE 



Sunshine, ..... 182-183 



Table XLV. Hourly Sunshine Values, 182 

 „ XLVI. Analysis of Sunless arid 



Sunny Days, . .183 



Reduction of Observations taken from 1731- 



1736, ..... 184-186 



Table XLVII. Mean Temperature at 9 



a.m., . . . 184 



„ XLVIII. Corrected 9 a.m. Tem- 

 peratures, . .184 

 XLIX. Rainfall, . . .184 

 „ L. Mean Variability of Tem- 

 perature, . .185 

 „ LI. Mean Humidity, . .185 

 „ HI. Thermal Windrose, 1731- 



1736, . . . 185 



LIII. Thermal Windrose, 1770- 



1776, . . .186 



,, LIV. Mean Humidity with dif- 



ferent Winds, 1731-1 736, 186 



Smoothed Departures from the Long Aver- 

 ages for each Month, . . . 187-200 

 Table LV. Temperature, . . 187 

 LVI. West Wind, . . 190 

 „ LVII. Barometric Pressure, . 193 

 LVIII. Rainfall, . . .196 

 „ LIX. Annual Non-Instrumental 



Values, . . .199 



Frost in Shade, 81 Years, . . 201-205 



Table LX. Monthly and Annual 



Values, . . .201 



„ LXI. First and last Frost by 



Winters, . . 203 



„ LXII. Daily Values, . . 204 



„ LXIII. Number of Days on which 



the Shade Temperature 

 fell to or below 20°, 



181 Summary and Contents, 



205 

 206 



2 H 



