Weather as Recorded at the UMass Cranberry Station:
Prepared by Peter Jeranyama
September was dry, slightly warmer and with slightly below average sunshine for the month. The temperature averaged 64.4°, 1.33 degrees per day above normal. Maximum temperature was 86° on the 5th day which is 3 degrees above to the long-term maximum temperature. The minimum temperature was 40° and was recorded on three nights (20th, 21st and 22nd). Daytime high temperatures averaged 74.73°, which is 2.73 degrees above the norm. Evening temperatures averaged 54.1°, 0.5 degrees below the norm. There were 8 days with a maximum temperature of at least 80°.
Sunshine totaled 58% of the possible sunshine hours, 1.2 points below the norm. They were 5 days of possible sunshine hours above 90% and one day with virtually no sunshine at all. The Blue Hills Observatory (official site for sunshine hour data), recorded 11 days with fog and the rest were sunny and clear.
Precipitation totaled 1.13 inches; 3.21 inches below normal. The rainfall was 1.05 inches less than the amount received for the month in 2019. We had measurable rain of 0.10 inches or greater on 4 days, and 3 days with spotty showers and drizzle with less than 0.10 inches recorded. The largest 24-hour rainfall was 0.27 inches on the 20th. By the end of September, a total of 24.15 inches of rainfall had been received for the year, 12.2 inches below the long-term average and 63% of 2019 total rainfall at this time of the year.