October 2017

Vol. 45, No. 5

Bird Sightings: May-June 2017

Nail Hayward and Robert H. Stymeist

The month of May started as very cold, with a high temperature on May 1 in Boston of just 48 degrees; the average temperature for May Day is 61. The month averaged 56 degrees, two degrees below normal. The first 15 days saw temperatures below normal with some rain on nine of those days, including a thunderstorm on May 2. The second half of the month was warmer thanks to a heat wave when the mercury hit 90 degrees or better for three consecutive days. Rainfall for the month totaled 3.45 inches, normal for May. The highest rainfall amount on any one day was 0.95 inches on May 14.

June was slightly warmer than normal, with an average temperature of 69 degrees in Boston, one degree above normal. There were four days with temperatures recorded in the 90s, and the high for the month was 95 degrees on June 12 and 13. The low temperature of 47 degrees on June 6 was recorded during five straight days of rain. Flash floods were noted in western Massachusetts on June 19–20 with as much as two inches of rain per hour in some communities. Total rain in Boston for the month of June was 4.85 inches, 1.17 inches above normal.

R. Stymeist

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