Weather as Recorded at the UMass Cranberry Station
Prepared by Peter Jeranyama
June was a sunny month with above average temperature and well above average rainfall. The mean temperature for the month was 65.7 degrees, 0.1 degrees above average. Maximum temperature was 91.4 degrees on the 13th; a minimum temperature of 42.8 degrees was recorded on the 8th. Daytime high temperatures averaged 74.9 degrees, 2.2 degrees above the norm. Evening low temperatures averaged 57.5 degrees, similar to June 2016 and 0.4 degree above the norm.
Sunshine average was 57% of the possible sunshine recorded. This is 2 percentage points above the long-term average for June sunshine recorded at the Blue Hills Observatory. Five days were rated as sunny (90% or greater of possible) with 3 days having no sunshine in the month.
Precipitation totaled 4.2 inches, which is 3.17 inches above the June 2016, and 0.43 inches above the 30-year average. We had measurable precipitation on 11 days, with 7 of those days having measurable precipitation of 0.10 inches or greater. The largest 24-hour rainfall was 0.95 inches on the 17th. Year-to-date rainfall for 2017 now stands at 31.19 inches, 6.03 inches above average.
The first half of 2017 has been very wet with rainfall above the long-term average for the period. The rainfall for the first half was 8.9 inches above 2016 for the same period. The winter temperature (December to February) was 3.8 degrees warmer than the average while the spring months (March to May) were similar to the average. Sunshine has been below average for January and May but in other months of the period sunshine has been average or above average.