BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, JULY 8, 2016 ALL TIMES ARE IN EASTERN STANDARD TIME   COOL AND RAW WEATHER THIS MORNING CLOUDS SLOWLY LIFT WITH FEW PEAKS OF SUN BY AFTERNOON   Summer has taken a backseat at the summit today.  Winds have retained an easterly component since the backdoor cold frontal passage early yesterday morning.  This has helped keep the temperatures below average, and also contributed to low clouds, fog, and drizzle observed this morning, with 0.02 inches of rain recorded.  The temperature fell as low as 59F around 8:30 this morning, and has only recovered to a high so far of 65F.  Drizzle ended by mid-morning, and the cloud ceiling gradually lifted with a few peaks of sunshine by afternoon, though mostly cloudy conditions continue to prevail. Visibility recovered from near zero this morning to 45 miles this afternoon.     Today's Observations:   7 A.M. Weather: Sky obscured by dense fog, light drizzle Temperature: 60F; Dew Point: 60F; Wind: NE at 12G20 kts Sea-level pressure: 29.87 in. Hg, rising then rising more rapidly Visibility: 1/16 mile 6-hr Max temp: 61F 6-hr Min temp: 60F 24-hr precip: 0.02 in. BHO SA 1155 W2 X 1/16L-F 114/60/60/0412G20/987/ STFRA DRFTG BLO SMT PCPN VRY LGT/ 8//// 53016 ASOS 60002 MANUAL 70002 ASOS 70002 10061 20060   10 A.M. Weather: Overcast stratocumulus, light drizzle ended 9:28 A.M. Temperature: 61F; Dew Point: 59F; Wind: NE at 8G20 kts, Wind: Direction variable N-E Sea-level pressure: 29.90 in. Hg, rising then rising more slowly Visibility: 30 miles 3-hr precip: Trace BHO SA 1455 E5 OVC 30 124/61/59/0408G20/990/ OCNL L-E28 WND 36V90/ 8/5// 51010 MANUAL 6000/   1 P.M. Weather: Broken stratocumulus, overcast stratocumulus (higher layer), break in overcast SE and distant NE Temperature: 65F; Dew Point: 57F; Wind: NE at 9 kts, Wind: Direction variable NNE-ESE Sea-level pressure: 29.91 in. Hg, rising slightly Visibility: 45 miles 6-hr Max temp: 65F 6-hr Min temp: 59F 6-hr precip: Trace BHO SA 1755 E12 BKN 35 OVC 45 128/65/57/0509/991/ BINOVC SE AND DSNT NE WND 02V10/ 8/5// 53004 MANUAL 6000/ 10065 20059   SUMMARY FOR THURSDAY, JULY 7, 2016   TEMPERATURE (DEGREES F) MAX.....77   NORMAL.....80 MIN.....61   NORMAL.....62 MEAN....69   NORMAL.....71   DEPARTURE FROM 30-YEAR NORMAL.........................-2 TOTAL DEPARTURE FOR THE MONTH........................+16 [+2.1 DEGREES/DAY]   COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............4   DEPARTURE..........-3 TOTAL COOLING UNITS FOR THE MONTH..............56   DEPARTURE.........+12 TOTAL COOLING UNITS FOR THE SEASON............213   DEPARTURE.........+40 TOTAL COOLING UNITS LAST SEASON TO DATE.......181   DIFFERENCE........+32     PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...................21 NE   AT  11:55 P.M.                    ASOS........................21 NE   AT  11:55 P.M.                        DAVIS.......................19 NNE  AT  11:55 P.M. RMY N/A FASTEST MILE FOR YESTERDAY.....................14 ENE  AT   6:00 A.M.   MAXIMUM 2-MINUTE ASOS AVERAGE..................16 ENE  AT   5:44 A.M.      MAXIMUM 2-MINUTE DAVIS AVERAGE.................14 NNE  AT  11:56 P.M.     AVERAGE WIND SPEED AND DIRECTION..............7.8 ENE                    ASOS.......................8.3                    DAVIS......................7.1 E [075 Deg.]   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.02  DEPARTURE......-0.09                          ASOS..............0.02 TOTAL PRECIPITATION FOR THE MONTH..........0.51  DEPARTURE......-0.25                          ASOS..............0.48 TOTAL PRECIPITATION FOR THE YEAR..........22.20  DEPARTURE......-5.53                          ASOS.............22.60   PRELIMINARY CLIMATE SUMMARY FOR JULY 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                                      7/1  84/67/76/+6/0.20/.../..                 32 S   AERO 35 S   RMY 34 TSTM 7/2  76/61/69/-1/0.00/.../..                 31 W   AERO 34 W   RMY 32 7/3  83/57/70/-1/0.00/.../..                 23 W   AERO 23 W   RMY 23 7/4  87/61/74/+3/0.00/.../..                 28 SSW AERO 28 SSW RMY 28 7/5  80/65/73/+2/0.29/.../..                 16 S   AERO 16 S   RMY N/A 7/6  92/68/80/+9/0.00/.../..                 22 WSW AERO 24 WSW RMY 22 7/7  77/61/69/-2/..../.../..                 21 NE  AERO 20 ENE RMY N/A   7/8 low temp since midnight is 59F; normal low now 63F   DAILY RECORDS FOR JULY 2016 None so far.      DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR JULY 8 HIGH 95F IN 1981 LOW 50F IN 1919 PRECIP 1.74 INS IN 1916 PEAK GUST 46e SSW IN 1941   RECORDS FOR JULY 9 HIGH 98F IN 1912 LOW 47F IN 1909 PRECIP 3.74 INS IN 1921 WIND 46 MPH NW IN 1992   TODAY'S REPORT PREPARED BY: Jonathan O'Brien