Weather as Recorded at the UMass Cranberry Station:
Prepared by Peter Jeranyama
June was a sunny month with above average temperature and well below average rainfall. The mean temperature for the month was 67.6 degrees, 2.1 degrees above average. Maximum temperature was 85 degrees on the 21st; a minimum temperature of 43 degrees (2.4 degrees cooler than long-term average) was recorded on the 1st. Daytime high temperatures averaged 76.2 degrees, 3.5 degrees above the norm. Evening low temperatures averaged 59 degrees, and 2 degrees above the norm.
Sunshine average was 61% of the possible sunshine recorded. This is 6 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 2 days having less than 10% possible sunshine in the month.
Precipitation totaled 1.97 inches, which is 3.18 inches below June 2019, and 1.8 inches below the 30-year average. We had measurable precipitation on 7 days, with 5 of those days having measurable precipitation of 0.10 inches or greater. The largest 24-hour rainfall was 0.71 inches on the 28th. Year-to-date rainfall for 2020 now stands at 20.79 inches, 4.37 inches below average.
The first half of 2020 has been slightly dry with rainfall below the long-term average for the period. The rainfall for the first half was 7.34 inches below 2019 for the same period because all but one month had slightly below average rainfall. The winter temperature (December to February) was 3.29 degrees warmer than the average while the spring months (March to May) were similar to the long-term average. Sunshine hours have been slightly above average for the first half of the year except for December, February and April.