Weather as Recorded at the UMass Cranberry Station:
Prepared by Peter Jeranyama
August was warm, wet and a below average sunshine month. The temperature averaged 74.2 degrees, 3.68 degrees above the long-term average. There were 3 days with a temperature of 90 or above and 7 days with temperatures above 85 but less than 90 degrees. The maximum temperature of 91 was recorded on the 14th and 28th. The minimum temperature of 54 degrees was recorded on the 1st. Daytime high temperatures averaged 81.87 degrees, 3.27 degrees above the norm. Evening temperatures averaged 66.48 degrees, 4.08 degrees above the norm. There were 13 nights with temperatures of 70 or above and 4 nights with temperatures equal to or below 60 degrees.
Sunshine totaled 51% of the possible sunshine hours, which is 7 points below the norm. There were 4 days with 90% or greater of possible sunshine, and two days with no sunshine at all.
Precipitation totaled 5.78 inches, 1.91 inches above normal and 3.71 inches more than August 2020. We had measurable precipitation on 9 days, with 8 of those have more than 0.1 inch. The highest 24hr precipitation of 2.02 inches was recorded on the 6th. Year-to-date, 2021 has received 33.86 inches of rain, 1.51 inches above long-term yearly average for East Wareham. Compared to 2020 at this stage, we have received 10.5 inches less rainfall for the year.
Official Summer Season
The official summer (June, July, and August) was warmer, slightly below average precipitation and sunny. The average temperature was 71.36 degrees, 2.19 degrees above the 30-year average for the 3-month period. All three months had above average temperature. Total rainfall for the season was 9.83 inches, 1.13 inches below the normal precipitation for this time of year; 2021 season had 6.55 inches more precipitation compared to 2020 season. Sunshine hours totaled 766 hours; this is 27 hours above the average for the three months. We had a maximum temperature of 91 degrees recorded on June 7th, August 14th and 28th and a minimum temperature of 47 degrees recorded on 1st and 11th of June. There were 10 days of 90° or more in June and August but none in July. We did not officially have a heat wave this summer. A heat wave is typically defined as three consecutive days where the temperature reaches or exceeds 90 °F.