12 



Prevailing 2vind. — South-west. 



Thunderstorms. — Occurred on 2d, 3d, 4th, 12th, 26th, 

 27th. 



Solar Halos. — 2d, 5th. 



Lunar Halo. — 10th. 



Frosts. — Ut, 8th, 19th. 



Auroras. — 16th, 18th (very brilliant and visible over all 

 New England). 



Advance of Season. — The season throughout the month 

 was about one week behind the average. At Fitchburg, 

 apple blossoms came out on the 25th, two days behind the 

 average for thirty-six years. 



Remarks. 



The weather for Massachusetts for the month of May, 

 1892, was characterized by an excess of rainfall and number 

 of rainy days and an unusually high mean wind velocity. 

 The mean temperature was slightly Ijclow the average and 

 the monthly range was strong. The mean air pressure was 

 also slightly below the average. There was an excess of 

 westerly and northerly winds and less southerly and easterly 

 winds than usual. 



The precipitation for the month was greatest in the central 

 and western districts and least on the coast. The storm of 

 the 20th to 23d was light on the coast, but heavy in the 

 interior ; no particular damage was done l)eyond washing a 

 few seeds from the ground and causing a few to rot on wet 

 ground. As the bulletin for October — the last of the series 

 for 1891 — reported an unusually early snow-storm, so in 

 this the first of the bulletins for 1892 we report a remark- 

 ably late snow-storm, on the 20th. This was felt only on 

 the western highlands, but was severe there as well as in 

 Vermont and New Hampshire. In the latter States many 

 sheep died from exposure and cattle and horses sufiered. 

 The observer at Savoy, Mass., reports it to be the hardest 

 storm of the season ; the temperature during the storm was 

 but little above freezing and the snow Avas accompanied by 

 heavy wind. 



