June 2022 Summary – Drier and Sunnier Than Average

Blue Hill Observatory June 2022 Summary: 

June temperature was near average, and the month had less rainfall and much more sunshine than expected. The 24-hour adjusted mean temperature for the month of 65.3 deg F was 1.0 degree warmer than the 1891-2020 130-year average for June, and it was 0.4 degrees cooler than the 1991-2020 30-year average. The average maximum temperature of 76.3 deg F was 0.9 degrees warmer than the 30-year mean, and the average minimum temperature of 57.0 deg F was 0.6 degrees cooler than the 30-year mean. The highest temperature observed all month was 92F on the 26th, which was only the second 90-degree day for the year so far. The low temperature during the month was 48F on the 19th and 20th. The total precipitation was 2.81 inches, which was about an inch less than the 130-year average and nearly two inches less than the 1991-2020 30-year mean. The greatest rainfall in 24 hours was 0.84 inches on the 27th. For the period from March to June, the total precipitation was just 10.25 inches, which was 55 percent of the 30-year average rainfall, and this total was the 11th driest on record for these four months. As a result, much of eastern and central Massachusetts is in a moderate drought. There was only one thunderstorm day during June on the 17th, which was three fewer than average for the month. The mean wind speed for June was 10.4 mph, which was the fourth lowest on record for the month, and the prevailing wind direction was from the south-southwest. The highest wind gust was 43 mph from the west-northwest on the 9th. June sunshine was above average with 272.3 hours, or 62 percent of the possible bright sunshine, which was seven percent more than the long-term average.

BHO Lowest June Wind Speed, mph (1885-2022):

1) 9.8 in 2009
   9.8 in 2020
3) 10.3 in 1895
4) 10.4 in 2022
5) 10.5 in 2019

Mike Iacono
Chief Scientist
Blue Hill Observatory