May was a warm and very dry month with well above average sunshine. The temperatures for May averaged 59.5 degrees, 3.7 degrees above the 30-year average. The maximum temperature was 79.7 degrees on the 17th and a minimum temperature of 39.2 degrees was recorded on the 2nd. Daytime high temperatures averaged 69.0 degrees, 4.1 degrees above the norm. Evening temperatures averaged 50.2 degrees, 3.2 degrees above the norm.
Sunshine totaled 65% of the possible sunshine hours, 13 percentage points above the norm. There were 7 days with 90% or better sunshine (only one more than last year) but only 1 day with no sunshine at all (there were 12 in 2014!). There were 3 days with fog in East Wareham.
Precipitation totaled 0.95 inch, 2.75 inches below the average rainfall for May in East Wareham. May 2014 was also drier than the 30-year norm but not as dry as May 2015. There were only 3 days with measurable precipitation. The largest 24-hour rainfall, accounting for more than half the monthly total, was 0.53 inches on the 19th. Our total year-to-date rainfall is 16.18 inches, 5.46 inches below the average in East Wareham.
Official Spring Season
The official spring (March-May) had slightly below average temperatures - 45.8 degrees, 0.4 degrees below average. Snowfall for the period totaled 20.3 inches (all in March), 12.8 inches above average. Despite the above average snowfall, precipitation was 8.62 inches below normal due to extremely dry conditions in April and May. Total precipitation was 8.62 inches, 5.06 inches below average. Sunshine for the spring was above normal each month, coming in with 55% of possible hours for the three month period, a very rare occurrence. Sunshine during March and April was slightly above the norm, with May well above average.