June 2014 Summary – Drier and Sunnier than Average

Blue Hill Observatory
June 2014 Summary:

The month was notable for being much warmer, drier and sunnier than average.  The 24-hour mean temperature for the month of 66.8F was 2.7 degrees warmer the 120-year average for June, and this was about one degree above the 1981-2010 30-year average.  The maximum temperature for the month was 87F on the 30th, and the coldest temperature was 47F on the 1st.  There were no daily temperature records during the month.  The total precipitation for June of 2.21 inches was about an inch and a half drier than the 120-year average and a little more than two inches less than the 1981-2010 mean. The greatest in 24 hours was 0.91 inches on the 5th.  There was one thunderstorm day during the month on the 17th. The mean wind speed for June was 10.6 mph with a prevailing wind direction of SSW, which tied for the third slowest wind speed on record for June with three other years: 2005, 2008, and 2011. The peak wind gust was only 35 mph from the W on the 18th, which was the second lowest peak gust in June since 1965 behind only the peak gust of 32 mph in June 1995.  Sunshine was much more frequent than usual, and June bright sunshine was 67 percent of possible, which was 12 percent more than the 120-year average for the month. This made June the eleventh sunniest on record and the sunniest since 67 percent was measured in 1979. The most bright sunshine in June was 77 percent of possible in 1971.