BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, JULY 10, 2015 ALL TIMES ARE IN EASTERN STANDARD TIME DAILY PRECIP RECORD UNOFFICIALLY BROKEN AS OVERNIGHT DELUGE BRINGS 2.03 INCHES OF NEW RAIN, THUNDER, LIGHTNING Rain, beginning before midnight EST last night, brought heavy rain for nearly three continuous hours, totaling 2.03 inches  by this morning's 7:00 AM EST observation. Nearly all of the rain fell after midnight EST this morning, unofficially breaking today's daily precipitation record of 1.68 inches, set in 1933. During the 12:45 AM to 1:00 AM EST period, rainfall rates nearly exceeded 2 inches per hour.  Fog cleared gradually this morning, with some sunshine by the 10:00 AM EST observation. By 1:00 PM EST sunshine was abundant with scattered stratocumulus, cumulus and cirrus fibratus. Visibility had increased slightly to 20 miles in all directions thanks to haze. A maximum temperature of 77F has been recorded so far. Today's Observations:   7 A.M. Weather: Thick fog Temperature: 60F; Dew Point: 60F; Wind: estimated N at 4 kts Wind Speed: Light Sea-level pressure: 29.91 ins. Hg, rising, then more quickly Visibility: 1/8 of a mile, thick fog 6-hr Max temp: 62F 6-hr Min temp: 59F 24-hr precip: 2.03 inches BHO SA 1155 W2 X 1/8F 130/60/60/E3604/991/ WND LGT AND VRB/  8//// 53018 ASOS 60166 70208 MANUAL 70203 10062 20059 10 A.M. Weather: Broken stratocumulus Temperature: 70F; Dew Point: 65F; Wind: NNW at 7 kts Sea-level pressure: 29.94 ins. Hg, falling, then rising but lower Visibility: 10 miles, thin fog in all directions BHO SA 1455 E9 BKN 10 138/70/65/3407/994/ THN FG ALQDS/ 8/500 53008 1 P.M. Weather: Scattered stratocumulus, scattered cumulus, scattered cirrus Temperature: 76F; Dew Point: 64F; Wind: estimated ENE at 4 kts, Wind Speed: Light Sea-level pressure: 29.93 ins. Hg, falling, then more quickly  Visibility: 20 miles, hazy 6-hr Max temp: 77F 6-hr Min temp: 60F BHO SA 155 24 SCT 36 SCT 300 SCT 20 135/76/64/E0703/993/  HAZY WND LGT/ 8/801 58003 10077 20060 SUMMARY FOR THURSDAY, JULY 9, 2015     TEMPERATURE (DEGREES F) MAX.....73   NORMAL.....81 MIN.....61   NORMAL.....63 MEAN....67   NORMAL.....72   DEPARTURE FROM 30-YEAR NORMAL........................-5 TOTAL DEPARTURE FOR THE MONTH........................+4 [+0.2 DEGREES/DAY]   COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............2   DEPARTURE..........-5 TOTAL COOLING UNITS FOR THE MONTH..............58   DEPARTURE..........+1 TOTAL COOLING UNITS FOR THE SEASON............196   DEPARTURE.........+10 TOTAL COOLING UNITS LAST SEASON TO DATE.......197   DIFFERENCE.........-1   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...................24 NE  AT  12:13 A.M.                                    ASOS........................26 ENE AT  12:12 A.M.                    DAVIS.......................23 NE  AT  MISSING    RMY 25 FASTEST MILE FOR YESTERDAY.....................16 ENE AT   1:42 A.M.*            MAXIMUM 2-MINUTE ASOS AVERAGE..................17 ENE AT  12:33 A.M.                  MAXIMUM 2-MINUTE DAVIS AVERAGE.................15 NE  AT  12:33 A.M.          AVERAGE WIND SPEED AND DIRECTION................9.3 ENE                    ASOS.........................9.1                    DAVIS........................8.1 ENE [069 deg.] * Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....2.03  DEPARTURE.....+1.65                          ASOS...............2.08 TOTAL PRECIPITATION FOR THE MONTH...........2.64  DEPARTURE.....+1.92                           ASOS...............2.69 TOTAL PRECIPITATION FOR THE YEAR.......... 26.91  DEPARTURE.....-0.92                          ASOS...............N/A *** *** ASOS annual totals not available due to erroneous readings   PRELIMINARY CLIMATE SUMMARY FOR JULY 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 7/1  80/63/72/+2/0.59/.../..               30 SSE RMY 33  TSTM 7/2  78/60/69/-1/0.00/.../..               23 WNW RMY N/A 7/3  79/58/69/-2/0.00/.../..               17 SSW RMY 17  7/4  74/61/68/-3/T/.../..                  16 S   RMY N/A 7/5  82/58/70/-1/0.00/.../..               20 WSW RMY 20   7/6  85/64/75/+4/0.00/.../..               20 S   RMY 21 7/7  84/65/75/+4/0.02/.../..               35 S   RMY 40 7/8  87/68/78/+6/T/.../..                  23 NE  RMY N/A 7/9  73/61/67/-5/..../.../..               24 NE  RMY 25 7/10 low since midnight is 59F; normal low is now 63F   DAILY RECORDS FOR JULY 2015 7/10- NEW RECORD DAILY PRECIPITATION PENDING OF X.XX in surpasses previous record of 1.68 in. in 1933   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):  RECORDS FOR JULY 10 HIGH 99F IN 1911 LOW 46F IN 1890 PRECIP 1.68 INS IN 1933 WIND 75 MPH W IN 1985 RECORDS FOR JULY 11 HIGH 98F IN 1911 LOW 49F IN 1890 PRECIP 1.87 INS IN 1959 WIND 53 MPH NW IN 1988 TODAY'S REPORT PREPARED BY: Brian Fitzgerald