10 



roe, on the 28th ; range, 53° ; greatest local monthly range, 

 50°, at Taunton; least local monthly range, 31°, at Prov- 

 incetown ; greatest daily range, 41°, at Taunton, on the 

 30th; least daily range, 6°, at Hyannis and Provincetown, 

 on the 14th. Average temperature for September at Boston 

 for twenty-two years, 62.3° ; average for September, 1892, 

 62.5°; departure, -|-0.2°. Average at Springfield for 

 twenty-five years, 62.9° ; average for September, 1892, 

 62.6°; departure, — 0.3°. Average at New Bedford for 

 eighty years, 59.4° ; for September, 1892, 60.4° ; departure, 

 -1-1.0°. 



Precipitation. — Average, 2.29; greatest, 3.54, at New 

 Bedford; least, 1.50, at Royalston. Average at Boston for 

 twent3^-two years, 3.06; total for September, 1892, 1.90; 

 departure, — 1.16. Average at Springfield for forty-five 

 years, 3.51; total for September, 1892, 1.89; departure, 

 — 1.62. Average at New Bedford for seventy-nine years, 

 3.52; total for September, 1892, 3.65; departure, +0.13. 



Prevailing wind. — South-west. 



Thunder-storms. — 19th, 26th. 



Frosts. — Monroe, 8th (light), 20th, 29^1, 30th ; Concord, 

 30th; Royalston, 2d, 7th, 21st, 30th; Taunton, light on 

 2d, 3d, 4th, 7th, 8th, 9th, 11th, 12th, 13th, 16th, 17th, 

 20th, killing on 21st, 22d, 30th; Worcester, 28th, 29th. 



Meteor. — Worcester, 20th, 8.03 p.m., in north-west. 



Auroras. — 26th, South Royalston; 1st, 2lst, Taunton. 



Remarks. 



The month of September, 1892, had in Massachusetts very 

 nearly a normal temperature, a deficiency of rainfall except 

 in the vicinity of New Bedford, and an air pressure and 

 amount of sunshine above the average. Few storms influ- 

 enced the weather, it being controlled during the greater 

 part of the time by anti-cyclones or fair weather areas. At 

 Boston twenty-one days were recorded as cloudless during 

 the month. At Blue Hill the amount of sunshine was 60.3 

 hours more than the average for seven years ; at that station 

 there was only one day with no sunshine. 



The highest temperature occurred on the 19th, ranging 



