BLUE HILL METEOROLOGICAL OBSERVATORYMILTON, MASSACHUSETTSELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARYTUESDAY, SEPTEMBER 6, 2016 ALL TIMES ARE IN EASTERN STANDARD TIME POST TROPICAL STORM HERMINE BRINGS A RATHER UNEXPECTEDLYHEAVY AMOUNT OF RAINFALL--ONE INCH TO THE SUMMITWIND GUSTS PEAK AT 42 NNE EARLY MONDAY EVENING There was really a lot more rain overnight than we thoughtpossible out of post-Tropical Storm overnight into early thismorning. A measurement of 0.95 inches in the standard 8-inchrain gauge was made at 8 A.M. EDT this morning. There was ahalf inch by midnight EST late last night and almost an equalamount during the next 8 hours although the greatest hourlyamount during the whole period as just 0.15 inches last evening!There were no downpours but just a persistent steady lightrain where only 2 hours out of 15 hours had 0.10 and 0.15 in!Part of the rainfall was likely the result of orographiclifting of the very moist air over the hills. Winds from the NNE-NE peaked at 42 MPH at about 7 P.M. EDT lastevening while the fastest 2-minute wind blew 28 MPH from theNNE early Labor Day afternoon during a time when we had partialsunshine through only some high clouds. Hermine was a tropical cyclone with four names as it first movedinto the Gulf of Mexico from the Caribbean as tropical depressionnumber nine. It then became a tropical storm and finally Hurricane(category 1) as it approached northwest Florida from the Gulf. Itthen weakened to a tropical storm in Georgia and the Carolinasbefore entering the Atlantic off of the North Carolina coast. Afterlosing its tropical characteristics east of Virginia and Marylandit became known as post-Tropical Storm Hermine while moving quiteslowly through the ocean well east of the Middle Atlantic states. Wind gusts to 50 to 60 MPH were recorded across the Cape and Islandsas rain bands swept in from the east. The precipitation then becamemore generalized rain and heavy drizzle over eastern Massachusettslast night and continuing into early this morning. Amounts were generallyup to a half inch (only 0.19 inches at Boston) with the exception of ourunusually heavy rainfall of almost an inch on the summit of Blue Hill.  Even nearby Norwood Airport (3 miles SW) had only 0.57 inches. PRELIMINARY STATS FOR AUGUST 2016 TEMPERATURE, Deg. FAvg. Max. 85.1 [+5.9]Avg. Min. 65.0 [+3.2]Mean      75.1 [+4.6]24-hour corrected mean: 74.1Max. for month: 95F on 12thMin. for month: 54F on 23rd HEATING DEGREE DAYSTotal heating units: 0 [-16] Total for the season: 10 [-15]Total for last season: 1 COOLING DEGREE DAYSTotal cooling units: 318 [+132] Total for the season: 792 [+255]Total for last season: 666 PRECIPITATION, InchesTotal: 1.78 [-2.25]Greatest in 24 hrs: 0.55 in. on 13th and 14th WIND, mphAvg. uncorrected wind speed: 10.3Avg. corrected wind speed: 10.8Prevailing wind direction: SSW at 14%Peak gust and direction: 40 SSW on 14th SUNSHINE:Campbell-Stokes card minutes: 17460 mins. of possible 24780 or 70%Astronomical total minutes: 18130 mins. of possible 25714 or 71% The 24-hour corrected mean temperature for August of 74.1 deg F breaksthe previous record of 72.6 deg F set in 2012 for the warmest August.August 2016 was 1.5 deg F warmer than the second warmest August on recordwhile previous records were all within 0.1-0.2 deg F of each other. Theaverage maximum and minimum temperatures for August 2016 are also new records.The previous high average max was 83.2 deg F set in August 2005; the previoushigh average min was 64.9 deg F set in August 2001. Summer 2016 was also the warmest summer on record with an average temperatureof 71.6 deg F.  This breaks the previous record of 71.3 deg F set in 2012.Even with the extreme drought in the Boston area, summer 2016 only ranks asthird driest. BHO Warmest Augusts, deg F (1885-2016): 1) 74.1 in 20162) 72.6 in 20123) 72.5 in 19884) 72.4 in 20155) 72.3 in 20056) 72.1 in 2002 BHO Warmest Summers (Jun-Aug), deg F (1885-2016): 1) 71.6 in 20162) 71.3 in 20103) 70.8 in 19494) 70.6 in 19995) 70.4 in 19526) 70.2 in 2005 BHO Driest Summers (Jun-Aug), inches (1885-2016): 1) 3.48 in 19492) 3.54 in 19573) 4.90 in 20164) 5.24 in 19655) 5.43 in 19646) 5.45 in 1997 7 A.M.Weather: Obscurement with heavy fog, light rain and heavy drizzleTemperature: 62F; Dew Point: 62F; Wind: NNE at 10 ktsSea-level pressure: 30.06 ins. Hg, risingVisibility: 1/16 mile in fog, light rain and heavy drizzle6-hr Max temp: 62F6-hr Min temp: 62F24 HR-PRECIP: 0.95 inchBHO SA 1155 W2X 1/16R-L+F 181/62/62/0210/006/ R- INTMT L+ OCNL L WND GST 22 KTS PST HR/ 8//// 51021 ASOS 60040 MANUAL 6XXX/ ASOS 70094 MANUAL 70095 10062 20062    10 A.M.Weather: Obscured dense fogTemperature: 65F; Dew Point: 65F; Wind: NE at 13G20 kts,Sea-level pressure: 30.11 ins. Hg, about steadyVisibility: 1/16 variable zero mile3-hr. precip: 0.09BHO SA 1455 W1X 1/16VF 195/65/65/0513G20/011/ VSBY 1/16V0 WND 36V08 LEXX/ 8//// 51006 MANUAL 6009/  1 P.M.Weather: Obscured in fog, light drizzle (very light)Temperature: 66F; Dew Point: 66F; Wind: NE at 12 kts,Sea-level pressure: 30.11 ins. Hg, about steadyVisibility: 1/8 mile, fog, very light drizzle6 hr: Max. temp. 67F6 HR: Min. temp. 62F6 hr  Precip: 0.11 in.BHO SA 1755 W3X 1/8L-F 194/66/66/0512/011/ FG DRFTG OVR SMTLB45 PCPN VRY LGT/ 8//// 58001 MANUAL 6011/ ASOS 6001210067 20062 SUMMARY FOR MONDAY, SEPTEMBER 5, 2016 - LABOR DAY TEMPERATURE (DEGREES F)MAX.....73   NORMAL.....75MIN.....57   NORMAL.....56MEAN....65   NORMAL.....67 DEPARTURE FROM 30-YEAR NORMAL........................-2TOTAL DEPARTURE FOR THE MONTH........................-7 [-1.6 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC)TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE..........-3TOTAL COOLING UNITS FOR THE MONTH...............5   DEPARTURE.........-13TOTAL COOLING UNITS FOR THE SEASON............797   DEPARTURE........+242TOTAL COOLING UNITS LAST SEASON TO DATE.......698   DIFFERENCE........+99 HEATING DEGREE DAYS (SEASON JUL TO JUN)TOTAL HEATING UNITS FOR YESTERDAY...............0   DEPARTURE..........-2TOTAL HEATING UNITS FOR THE MONTH...............0   DEPARTURE..........-7TOTAL HEATING UNITS FOR THE SEASON.............10   DEPARTURE.........-22TOTAL HEATING UNITS LAST SEASON TO DATE.........1   DIFFERENCE.........+9   PEAK GUST AND AVERAGE WIND SPEED (MPH)PEAK WIND GUST FOR YESTERDAY...................42 NNE AT  6:00 P.M. *                   AEROVANE....................33 NNE AT  6:00 P.M.                   ASOS........................43 NNE AT  5:57 P.M.                   DAVIS.......................40 NNE AT  5:56 P.M. RMY 43FASTEST MILE FOR YESTERDAY.....................27 MME AT  1:31 P.M.   MAXIMUM 2-MINUTE ASOS AVERAGE..................28 NE  AT  1:31 P.M.MAXIMUM 2-MINUTE DAVIS AVERAGE.................26 NNE AT  1:31 P.M.AVERAGE WIND SPEED AND DIRECTION.............17.2 N                    ASOS......................16.9                   DAVIS.....................15.0 NNE [020 Deg.]* Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.95  DEPARTURE......+0.83                         ASOS..............0.94TOTAL PRECIPITATION FOR THE MONTH..........1.04  DEPARTURE......+0.46                         ASOS..............1.04TOTAL PRECIPITATION FOR THE YEAR..........26.01  DEPARTURE..... -9.59                         ASOS.............26.31 PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER CALENDAR DAY DATADATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO/RMY GUSTAERO: Aerovane wind recording system gustRMY:  R.M. Young wind gust recording systemTSTM: Thunderstorm day (thunder heard some time during day)....: Data not yet available, records not finalized 9/1  72/64/68/0/0.09/.../..                  21 NNW AERO 16 NNW RMY 209/2  76/58/67/-1/0.00/.../..                 23 ENE AERO 17 NE  RMY 239/3 *72/57/65/-2/0.00/.../..                 16 E   AERO 12 E   RMY N/A9/4  71/58/65/-2/0.00/.../..                 28 NE  AERO 21 NE  RMY 279/5  73/57/65/-3/..../..                     42 NNE AER0 33 NNE RMY 43  * there was an error in the computation of the mean temp. for 9/3;  the mean of 72/57 has been corrected to 65 from 64 and a correction  has been made to the departure from normal from -3 to -2. Other parts  of this discussion have been corrected to reflect this change.    9/6  Low temp since midnight is 61F; normal low is now 58F DAILY EXTREMESTemperature and precipitation records back to 1885, andwind records back to 1940 (e = estimated): RECORDS FOR SEPTEMBER 6HIGH 92F IN 1900LOW 39F IN 1888PRECIP 3.19 INCHES IN 1890PEAK GUST 78e MPH SE IN 1979 (TROPICAL STORM DAVID) RECORDS FOR SEPTEMBER 7HIGH 92F IN 2007, 2015LOW 40F IN 1888PRECIP 2.95 INCHES IN 1891PEAK GUST 58e MPH W IN 1941 TODAY'S REPORT PREPARED BY: Robert Skilling