May came in with just below average temperatures, slightly above average rainfall and very low sunshine. The temperatures for May averaged 56.0 degrees, 0.3 degrees per day below normal. The maximum temperature was 78.0 degrees on the 30th and a minimum temperature of 39.0 degrees was recorded on the 13th. Daytime high temperatures averaged 64.0 degrees, 0.8 degrees below the norm. Evening temperatures, however, averaged 50.0 degrees, 2.3 degrees below the norm.
Sunshine totaled 47% of the possible sunshine hours, 5 points below the norm and 6% below May 2008. There were only 5 days with 90% or better sunshine and 8 days with no sunshine at all. There were 2 days with dense fog in East Wareham.
Precipitation totaled 4.03 inches, 0.30 inches above the average rainfall for May in East Wareham. There were a total of 17 days with measurable precipitation. The first half of the month, we experienced rainfall on 11 out of 15 days. The largest 24-hour rainfall was 1.71 inches on the 5th. Our total year-to-date rainfall is 20.25 inches, 0.65 inches above the average in East Wareham, and 0.73 inches below the amount measured at this point last year.
The official spring (March-May) had slightly above average temperatures and rainfall, with above average sunshine. Temperatures averaged 47.0 degrees, 0.5 degrees above average; rainfall totaled 13.85 inches, 1.17 inches above average and snowfall totaled 5.8 inches, right on average. Sunshine average well above normal, with March and April being well above average and May having above normal sunshine.