BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, JUNE 9, 2018   ALL TIMES ARE IN EASTERN STANDARD TIME DRY AND PLEASANT SPRING DAY It was another beautiful day here at Blue Hill, but the humidity was even lower making for more pleasant air. Dew points remained in the low 50s and upper 40s and the relative humidity at the 1:00 P.M. EST observation was just 36%. Temperatures today have been similar yesterdays with a maximum of 78F reached so far, but we had a warmer start to the day as the temperature only dropped to a minimum of 58F last night. Visibility was excellent this morning at 80 miles, but by the afternoon there was distant haze which brought it down to 70 miles. This morning, there were little clouds in the sky, with only about 1/4 of the sky covered with mainly cirrus. In the afternoon there was a layer of overcast cirrus covering the sky, but the sun was still able to shine through. Today will likely be the second day with warmer than average temperatures after the 5 day streak of cooler than average temperatures from June 3rd to June 7th. Yesterday ended up having an average temperature that was 2F above normal, but today's average temperature will likely be higher due to the higher minimum temperature reached so far. Today's Observations: 7 A.M. Weather: Few cumulus SE-SW and NW-N, few altocumulus in all directions,  scattered cirrus Temperature: 66F; Dew Point: 51F; Wind: NNW at 5 kts, Wind speed: Light Sea-level pressure: 30.15 ins. Hg, rising, then more quickly Visibility: 80 miles 6-hr Max temp: 66F 6-hr Min temp: 58F 24-hr Precip: 0.00 ins. BHO SA 1155 250 SCT 80 209/66/51/3405/015/ FEW CU SE-SW AND NW-N FEW AC ALQDS  WND LGT/ 8/131 53012 10066 20058 10 A.M. Weather: Few altocumulus in all directions, broken cirrus Temperature: 74F; Dew Point: 46F; Wind: NNW at 6 kts, Wind speed: Light Sea-level pressure: 30.12 ins. Hg, falling, then more quickly Visibility: 70 miles 3-hr Precip: 0.00 ins. BHO SA 1455 E250 BKN 70 199/74/46/3306/012/ FEW AC ALQDS WND LGT/  8/031 57010 1 P.M. Weather: Scattered cumulus, overcast cirrus Temperature: 77F; Dew Point: 48F; Wind: W at 8 kts Sea-level pressure: 30.09 ins. Hg, falling, then more quickly Visibility: 70 miles, distant haze in all directions 6-hr Max temp: 78F 6-hr Min temp: 66F 6-hr precip: 0.00 ins. BHO SA 1755 060 SCT E250 OVC 70 189/77/48/2808/009/ DSNT HZ ALQDS/  8/102 58010 10078 20066 SUMMARY FOR FRIDAY, JUNE 8, 2018 TEMPERATURE (DEGREES F) MAX.....79   NORMAL.....73 MIN.....52   NORMAL.....55 MEAN....66   NORMAL.....64 DEPARTURE FROM 30-YEAR NORMAL.........................+2 TOTAL DEPARTURE FOR THE MONTH........................-25 [-3.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............0   DEPARTURE...........-4 TOTAL HEATING UNITS FOR THE MONTH.............50   DEPARTURE..........+17 TOTAL HEATING UNITS FOR THE SEASON..........5897   DEPARTURE.........-439 TOTAL HEATING UNITS LAST SEASON TO DATE.....5721   DIFFERENCE........+176 COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............1   DEPARTURE..........-1 TOTAL COOLING UNITS FOR THE MONTH...............8   DEPARTURE.........-11 TOTAL COOLING UNITS FOR THE SEASON.............70   DEPARTURE.........+27 TOTAL COOLING UNITS LAST SEASON TO DATE........59   DEPARTURE.........+11 PEAK GUST AND AVERAGE WIND SPEED (MPH)  PEAK WIND GUST FOR YESTERDAY....................20  SW  AT 2:31 A.M.                    AERO.........................17  SW  AT 2:32 A.M.                     ASOS.........................19  SW  AT 2:32 A.M.                    DAVIS........................19  M   AT 2:26 A.M.** RMY 18 FASTEST MILE FOR YESTERDAY......................15  SW  AT 4:39 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE...................15  SW  AT 4:40 A.M.   MAXIMUM 2-MINUTE DAVIS AVERAGE..................15  M   AT 2:33 A.M.** AVERAGE WIND SPEED AND DIRECTION...............11.5 SSW                    ASOS........................12.5                    DAVIS.......................11.7 ** Davis direction malfunctioning  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..........1.01  DEPARTURE......-0.32                          ASOS..............1.04   TOTAL PRECIPITATION FOR THE YEAR..........28.33  DEPARTURE......+4.52                          ASOS.............29.91 PRELIMINARY CLIMATE SUMMARY FOR JUNE CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system 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 M:    Missing data 6/01 78/62/70/+8/T/.../..            21 S   AERO 21 S   RMY N/A 6/02 79/54/67/+5/0.00/.../..         26 ENE AERO 25 ENE RMY 27 6/03 59/45/52/-10/0.00/.../..        28 ENE AERO 25 ENE RMY N/A   6/04 52/45/49/-14/.../.../..         29 ENE AERO 26 ENE RMY 29 6/05 64/47/56/-7/..../.../..         24 N   AERO 21 N   RMY 23 TSTM   6/06 66/50/58/-5/0.00/.../..         23 S   AERO 21 S   RMY 22 6/07 69/50/60/-4/0.00/.../..         25 S   AERO 25 S   RMY 27  6/08 79/52/66/+2/0.00/.../..         20 SW  AERO 17 SW  RMY 18 6/09 Low temp since midnight is 58F; normal low is now 55F DAILY RECORDS FOR JUNE 2018 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):     RECORDS FOR JUNE 9 HIGH 94F IN 2008 LOW 40F IN 1980 PRECIP 2.08 INCHES IN 1931 PEAK GUST 67 MPH NW IN 1973 RECORDS FOR JUNE 10 HIGH 98F IN 2008 LOW 42F IN 1913,1920 PRECIP 2.51 INCHES IN 1931 PEAK GUST 60e MPH NW IN 1941 TODAY'S REPORT PREPARED BY: Lizzy Suzedell