Weather as Recorded at the UMass Cranberry Station:
Prepared by Peter Jeranyama
September was slightly wet, warm, and below average sunshine for the month. The temperature averaged 64.4°, 1.3 degrees per day above normal. Maximum temperature was 86° on the 12th day which is 2.9 degrees above to the long-term maximum temperature. The minimum temperature was 43° and was recorded on three nights (17th, 25th and 30th). Daytime high temperatures averaged 75°, which is 3 degrees above the norm. Evening temperatures averaged 66°; 3.6 degrees above the norm. There were 10 days with a maximum temperature of at least 80°.
Sunshine totaled 56% of the possible sunshine hours, 3.3 points below the norm. They were 6 days of possible sunshine hours above 90% and 5 days with virtually no sunshine at all. The Blue Hills Observatory (official site for sunshine hour data) recorded 9 days with fog and the rest were sunny and clear.
Precipitation totaled 4.79 inches; 0.45 inches above normal. The rainfall was 5.47 inches less than the amount received for the month in 2021. We had measurable rain of at least 0.10 inches on 8 days, and 2 days with spotty showers and drizzle with less than 0.10 inches recorded. The largest 24-hour rainfall was 1.23 inches on the 23rd. By the end of September, a total of 33.3 inches of rainfall had been received for the year, 3.39 inches below the long-term average, and 0.8 inches less than 2021 total rainfall at this time of the year.