Massachusetts Weather. 



Meteorological' Data for September, 1891. 



Highest 



* Temperature data from thermometer not self-registering. 



Summaiy. 



Temperature (F.). — Monthly mean, 65.3°. 

 monthly mean, 68.6° at Princeton; lowest monthly mean, 

 63.6° at Amherst; maximum, 92° at Taunton on the 18th; 

 minimum, 37° at Amherst on the 9th ; range, 55° ; greatest 

 local monthly range, 52° at Amherst ; least local monthly 

 range, 21° at Nantucket ; greatest daily range, 38° at Taun- 

 ton on the 20th and 21st; least daily range, 3° at Boston 

 on the 6th and 22d, at Ipswich on the 22d, at Middle- 

 borough on the 7th, and at Nantucket on the 30th. Average 

 temperature for September at Springfield for twenty-four 

 years, 63.0°; average for September, 1891, 66.7°; de- 

 parture, -f-3.7°. Average temperature for September at 

 Boston for twenty-one years, 62.4° ; average for September, 

 1891, 66.7°; departure, +4.3°. 



Precipitation. — Average, 2.72 inches ; greatest, 3.12 at 

 Nantucket; least, 1.34 at Ipswich. Average for September 

 at Springfield for forty-four years, 3.55 ; for September, 

 1891, 1.41; departure, — 2.14. Average for September at 

 Boston for twenty-one years, 3.12; for September, 1891, 

 2 29 ; departure, —0.83. 



