Greater Moncton was actually warmer than normal in May according to Environment Canada but somehow it seemed cooler than average.
Overnight lows were quite cold throughout the month with five nights either at or below freezing and just three nights at or higher than 10 C.
Daytime highs varied widely with six days failing to reach 10 C and eleven days climbing to at least 20 C or more.
Rainfall was below normal with snow flurries spotted on 09 May and measurable snow in western New Brunswick as late as 16 May.
MAY 2016 ALMANAC (at the Greater Moncton International Airport)
Average HIGH 16.7 C
Average LOW 4.7 C
AVERAGE 10.7 C (about 0.7 degrees ABOVE 30-year average)
Extreme HIGH 29.5 C (31 May, new record high for date)
Extreme LOW -4.0 C (01 May)
RAINFALL 75.0 mm (about 20 percent BELOW 30-year average)
(Data courtesy Environment Canada)