BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, JUNE 14, 2015 ALL TIMES ARE IN EASTERN STANDARD TIME HIGH CLOUDS FILLED THE SKY WITH AVERAGE TEMPERATURES Quiet day for the weather with mostly cloudy skies and hazy conditions. Temperatures rose only slightly through the day with generally light Winds and steady barometer. Skies slowly cleared throughout the day As upper level Cirrus clouds cleared out and Cumulus clouds began to form. Visibility improved from this morning as some haze cleared but Visibilities never got higher than 60 miles. Today's Observations: 7 A.M. Weather: Scattered Altocumulus, Broken Cirrocumulus Temperature: 67F; Dew Point: 56F; Wind: NNW at 7 kts Sea-level pressure: 30.05 ins. Hg, rising Visibility: 40 miles, light distant haze 6-hr Max temp: 67F 6-hr Min temp: 64F 24-hr precip: 0.00 BHO SA 1155 130 SCT E250 BKN 40 175/67/56/3207/005/ 8/079 51014 10067 20064 LGT DSTN HZ 10 A.M. Weather: Few Cumulus SSW-NW, Scattered Altocumulus, Scattered dense Cirrus Temperature: 74F; Dew Point: 46F; Wind: N at 11 kts Sea-level pressure: 30.08 ins. Hg, rising then rising more slowly Visibility: 60 miles BHO SA 1455 130 SCT 250 SCT 60 187/74/46/0611/008/ 8/132 53012 FEW CU WSW-NW LGT DSNT HZ 1 P.M. Weather: Scattered Altocumulus, Scattered dense Cirrus, Few Cumulus Temperature: 72F; Dew Point: 47F; Wind: N at 9 kts, Sea-level pressure: 30.09 ins. Hg, rising then falling Visibility: 60 miles 6-hr Max temp: 74F 6-hr Min temp: 67F BHO SA 1755 130 SCT 250 SCT 60 189/72/47/0809/009/ FEW CU ALQDS LGT DSNT HZ 8/132 58002 10074 20067 SUMMARY FOR SATURDAY, JUNE 13, 2015 TEMPERATURE (DEGREES F) MAX.....83 NORMAL.....74 MIN.....67 NORMAL.....56 MEAN....75 NORMAL.....65 DEPARTURE FROM 30-YEAR NORMAL.......................+10 TOTAL DEPARTURE FOR THE MONTH.......................-27 [-2.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............0 DEPARTURE...........-3 TOTAL HEATING UNITS FOR THE MONTH..............78 DEPARTURE..........+29 TOTAL HEATING UNITS FOR THE SEASON...........6482 DEPARTURE.........+131 TOTAL HEATING UNITS LAST SEASON TO DATE......6421 DIFFERENCE.........+61 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY.............10 DEPARTURE..........+7 TOTAL COOLING UNITS FOR THE MONTH.............38 DEPARTURE..........+8 TOTAL COOLING UNITS FOR THE SEASON............87 DEPARTURE.........+33 TOTAL COOLING UNITS LAST SEASON TO DATE.......39 DIFFERENCE........+48 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................24 N AT 7:13 A.M. ASOS.......................27 N AT 7:09 A.M. DAVIS......................25 SSW AT 12:06 A.M. RMY 27 FASTEST MILE FOR YESTERDAY....................18 N AT 7:13 A.M.* MAXIMUM 2-MINUTE ASOS AVERAGE.................18 N AT 7:13 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE................19 WNW AT 12:08 A.M. AVERAGE WIND SPEED AND DIRECTION..............8.3 NW ASOS.......................8.2 DAVIS......................7.0 WNW [290 deg.] *LAST OF MULTIPLE OCCASIONS PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....0.00 DEPARTURE....-0.16 ASOS...............0.00 TOTAL PRECIPITATION FOR THE MONTH...........1.58 DEPARTURE....-0.55 ASOS...............1.60 TOTAL PRECIPITATION FOR THE YEAR.......... 20.95 DEPARTURE....-3.71 ASOS...............N/A *** *** ASOS annual totals not available due to erroneous readings PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP//SUN(MIN.)/SUN(%)/ PEAK GUST/RMY GUST RMY: R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized 6/1 48/46/47/-15/0.69/000/00 32 NE RMY 34 6/2 47/44/46/-16/..../000/00 28 NNE RMY 28 6/3 59/44/52/-10/0.00/172/19 16 ESE RMY 16 6/4 63/46/55/-8/0.00/445/49 17 E RMY 16 6/5 70/49/60/-3/T/500/55 17 NNE RMY 17 6/6 65/52/59/-4/0.06/382/42 26 ENE RMY 27 6/7 73/49/61/-3/0.00/884/97 28 S RMY 29 6/8 73/50/62/-2/T/310/34 41 SSW RMY 48 6/9 76/61/69/+4/0.03/228/25 29 SSW RMY 32 6/10 82/57/70/+5/0.00/.../.. 24 WSW RMY N/A 6/11 85/61/73/+8/0.00/.../.. 29 SSW RMY 32 6/12 86/65/76/+11/..../.../.. 26 S RMY 29 6/13 83/67/75/+10/T/.../.. 24 N RMY 27 6/14 low since midnight is 63F; normal low is now 57F DAILY RECORDS FOR JUNE 2015 6/1- NEW RECORD LOW MAXIMUM TEMPERATURE OF 48F surpasses previous record of 51F in 2004 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 14 HIGH 93F IN 1956 LOW 41F IN 1912 PRECIP 1.49 INS 1896 PEAK GUST 55 MPH WNW IN 1958 RECORDS FOR JUNE 15 HIGH 94F IN 1988 LOW 42F IN 1959, 1978 PRECIP 2.04 INS IN 1903 PEAK GUST 52 MPH SW IN 1972 TODAY'S REPORT PREPARED BY: Robert Millette