BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, OCTOBER 6, 2015 ALL TIMES ARE IN EASTERN STANDARD TIME   PLENTY OF BRIGHT SUNSHINE AND WARMER TODAY  TEMPERATURES RISING THOUGH THE 60'S WINDS QUITE LIGHT   A very sunny day today after all the clouds yesterday and temperatures had reached 67F by 2 p.m. along with the dew points in the mid-40's.  Winds are quite light with the average since 8 A.M. EDT only 5 MPH.    SEPTEMBER Details below:   BHO Warmest Septembers (NWS mean), deg F (1885-2015):   1) 68.2 in 2015 2) 66.9 in 1961 3) 66.5 in 1930 4) 66.4 in 1999 5) 66.2 in 2002    66.2 in 2005   BHO Warmest September Average Maximum Temperature, deg F (1885-2015):   1) 77.8 in 2015 2) 76.6 in 1930 3) 75.7 in 2007 4) 75.6 in 1959 5) 75.5 in 1961   BHO Warmest September Average Minimum Temperature, deg F (1885-2015):   1) 58.8 in 1988 2) 58.5 in 2015 3) 58.2 in 1961    58.2 in 1999 5) 57.8 in 2005   BHO Warmest Aug-Sep (24-hour adjusted mean), deg F (1885-2015):   1) 69.8 in 2015 2) 68.9 in 2005 3) 68.6 in 2002 4) 68.2 in 2010 5) 67.8 in 1959   BHO Slowest September Mean Wind Speed, mph (1885-2015):   1) 10.3 in 2015 2) 10.5 in 2014 3) 10.6 in 2013 4) 10.7 in 2011 5) 10.9 in 1917    10.9 in 2003   BHO Sunniest Septembers, hours (1885-2015):   1) 267.7 in 1983  [74%] 2) 266.9 in 1941  [74%] 3) 265.9 in 2007  [74%] 4) 255.3 in 1948  [71%] 5) 251.9 in 2015  [70%] 6) 251.0 in 1967  [70%] 7) 246.8 in 1952  [69%]    246.8 in 1978  [69%]   BHO Sunniest Aug-Sep, hours (1885-2015):   1) 555.1 in 2015  [72%] 2) 553.0 in 1941  [72%] 3) 536.0 in 2007  [69%] 4) 527.3 in 2014  [68%] 5) 520.2 in 1932  [67%] 6) 515.3 in 1921  [67%] 7) 514.3 in 1968  [67%]     PRELIMINARY STATS FOR SEPTEMBER 2015   TEMPERATURE, Deg. F Avg. Max. 77.8 [+6.2] Avg. Min. 58.5 [+3.9] Mean      68.2 [+5.1] Corrected mean: 67.3 Max. for month: 97 on 8th Min. for month: 46 on 27th   COOLING DEGREE DAYS Total cooling units: 144 [+84]  Total for the season: 810 [+213] Total for last season: 587   HEATING DEGREE DAYS Total heating units: 42 [-75]  Total for the season: 43 [-99] Total for last season: 101   PRECIPITATION, Inches Total: 3.88 [-0.18] Greatest in 24 hrs: 2.53 inches from 9/29-30 WIND, mph Avg. uncorrected wind speed: 10.1 Avg. corrected wind speed: 10.3 Prevailing wind direction: SSW @ 13% Peak gust and direction: 47 S on the 30th   SUNSHINE: Campbell-Stokes card minutes: 15114 mins. of possible 21582 or 70% Astronomical total minutes:   15766 mins. of possible 22472 or 70%   Today's Observations:   7 A.M. Weather: Clear, altocumulus and altocumulus lenticularis distant WSW-NW, cirrus distant ENE-S  Temperature: 46F; Dew Point: 42F; Wind: N at 8 kts, Sea-level pressure: 30.03 ins. Hg, steady Visibility:  60 miles, few patches of shallow grond fog and one dense patch distant WSW-W 6-hr Max temp: 48F  6-hr Min temp: 43F 24-hr precip: trace BHO SA 1155 CLR 60 170/46/42/3508/003/ AC/ACSL DSNT WSW-NW CI DSNT ENE-S PTCHS THN SHLW GF/LONE PTCH DNS DSNT WSW-W LGT DSNT HZ HVY DEW/ 8/041 53000 10048 20043   10 A.M. Weather: Clear, cumulus along distant SE horizon, altocumulus and altocumulus lenticularis distant W-N, cirrus distant ESE-S Temperature: 58F; Dew Point 45F; Wind: NW at 3 kts (estimated), Wind: Light Sea-level pressure: 30.04 ins. Hg, rising, rising than falling slightly but higher than 3 hours ago Visibility: 75 miles, thin smoke NNE-NE BHO SA 1455 CLR 75 172/58/45/E3103/004/ CU ALG HRZN DSNT SE AC/ACSL DSNT W-N CI DSNT ESE-S THN K NNE-NE WND LGT/ 8/141 50002 1 P.M. Weather: Clear, few small cumulus distant W, few altocumulus and altocumulus lenticularis distant WNW-NNW, few cirrus distant ESE-S and WNW Temperature: 66F; Dew Point: 45F; Wind: NW  at 6 kts Sea-level pressure: 29.98 ins. Hg, decreasing then more rapidly Visibility: 80 miles    6-hr Max: 67F 6-hr Min: 46F 6-hr precip: none  BHO SA 1755 CLR 80 152/66/45/3206/998/ FEW SML CU DSNT W FEW AC/ACSL DSNT WNW-NNW FEW DSNT CI ESE-S AND WNW/ 8/141 58020 10067 20046   SUMMARY FOR MONDAY, OCTOBER 5, 2015    TEMPERATURE (DEGREES F) MAX.....59   NORMAL.....64 MIN.....46   NORMAL.....47 MEAN....53   NORMAL.....56   DEPARTURE FROM 30-YEAR NORMAL........................-3 TOTAL DEPARTURE FOR THE MONTH.......................-27  [-5.2 DEGREES/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE...........0 TOTAL COOLING UNITS FOR THE MONTH...............0   DEPARTURE..........-1 TOTAL COOLING UNITS FOR THE SEASON............810   DEPARTURE........+212 TOTAL COOLING UNITS LAST SEASON TO DATE.......587   DIFFERENCE.......+223   HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............12   DEPARTURE..........+2 TOTAL HEATING UNITS FOR THE MONTH..............70   DEPARTURE.........+25 TOTAL HEATING UNITS FOR THE SEASON............113   DEPARTURE.........-75 TOTAL HEATING UNITS LAST SEASON TO DATE.......158   DIFFERENCE........-45 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...................21  NE  AT 10:55 A.M.                    ASOS........................21  NE  AT 10:55 A.M.                     DAVIS.......................20  NE  AT 10-11 A.M. RMY 20 FASTEST MILE FOR YESTERDAY.................... 13  NE  AT  9:26 A.M.  MAXIMUM 2-MINUTE ASOS AVERAGE..................14  NE  AT  9:31 A,M.  MAXIMUM 2-MINUTE DAVIS AVERAGE.................13  NE  AT  8:37 A,M.  AVERAGE WIND SPEED AND DIRECTION..............9.0  ENE                    ASOS.......................8.7                       DAVIS..................... 8.1  NE [045 DEG]   PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....trace DEPARTURE.....-0.14                          ASOS...............0.00 TOTAL PRECIPITATION FOR THE MONTH...........0.52  DEPARTURE.....-0.22                          ASOS...............0.50 TOTAL PRECIPITATION FOR THE YEAR...........34.19  DEPARTURE.....-5.16                          ASOS................N/A *** *** ASOS annual total not available due to erroneous readings   PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER & OCTOBER 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   9/1  81/65/73/+5/0.00/766/97               20 SSW RMY 20 9/2  89/64/77/+9/0.00/732/93               20 SW  RMY 21  9/3  85/66/76/+9/T/612/78                  17 E   RMY N/A TSTM 9/4  72/58/65/-2/0.00/297/38               31 ENE RMY N/A 9/5  77/55/66/-1/0.00/748/96               14 SW  RMY 18 9/6  87/57/72/+5/0.00/753/97               21 SSW RMY 22 9/7  92/63/78/+12/0.00/727/94              23 WSW RMY 24 9/8  97/70/84/+18/0.00/693/90              22 WSW RMY 24 9/9  92/70/81/+15/0.00/683/89              30 SSW RMY 33 9/10 73/62/68/+3/0.32/000/00               29 NE  RMY N/A 9/11 70/59/65/0/0.59/084/11                33 NE  RMY N/A 9/12 75/58/67/2/..../380/50                18 SSE RMY 25 9/13 66/60/63/-1/..../000/00               25 E   RMY N/A 9/14 70/53/62/-2/0.00/550/73               33 W   RMY 35 9/15 82/56/69/+5/0.00/736/98               23 W   RMY N/A 9/16 84/62/73/+10/0.00/711/95              17 NW  RMY N/A 9/17 87/64/76/+13/0.00/723/97              17 SW  RMY 16 9/18 86/64/75/+13/0.00/712/96              21 SSW RMY 21 9/19 80/62/71/+9/0.00/480/65               22 S   RMY N/A 9/20 74/55/65/+3/T/552/75                  24 S   RMY N/A  9/21 65/50/58/-3/0.00/646/88               29 ENE RMY 30 9/22 67/55/61/+0/0.00/183/25               21 E   RMY 21 9/23 72/50/61/+1/0.00/677/93               15 E   RMY N/A 9/24 72/56/64/+4/0.00/696/96               22 E   RMY 21   9/25 66/53/60/0/0.00/556/77                21 E   RMY 20 9/26 63/49/56/-3/0.00/633/88               25 ENE RMY 25 9/27 71/46/59/+0/0.00/688/96               17 S   RMY 18 9/28 81/57/69/+11/0.00/428/60              22 SSW RMY 24 9/29 82/65/74/+16/..../320/45              28 S   RMY N/A 9/30 75/53/64/+6/..../000/00               47 S   RMY 51  TSTM   10/1 55/51/53/-4/..../.../..               39 NE  RMY N/A 10/2 51/47/49/-8/..../.../..               40 NE  RMY 43 10/3 51/45/48/-8/..../000/00               38 NE  RMY N/A 10/4 55/49/52/-4/0.00/.../..               35 E   RMY 40 10/5 59/46/53/-3/T/.../..                  21 NE  RMY 20   10/6 low since midnight is 43F; normal low is now 47F    DAILY RECORDS FOR SEPTEMBER & OCTOBER 2015   **9/7 DAILY RECORD MAXIMUM TEMPERATURE OF 92F TIES PREVIOUS RECORD SET IN 2007**   **9/8 DAILY RECORD MAXIMUM TEMPERATURE OF 97F BREAKS PREVIOUS RECORD OF 93F SET IN 2007**   **9/8 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 70F BREAKS PREVIOUS RECORD OF 69F SET IN 1999**   **9/9 DAILY RECORD MAXIMUM TEMPERATURE OF 92F BREAKS PREVIOUS RECORD OF 91F SET IN 2002**   **9/9 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 70F BREAKS PREVIOUS RECORD OF 69F SET IN 1999**   **9/17 DAILY RECORD MAXIMUM TEMPERATURE OF 87F BREAKS PREVIOUS RECORD OF 86F SET IN 1915, 1941, AND 1991**   **9/18 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 64F TIES PREVIOUS RECORD SET IN 1992**   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 6 HIGH 83F IN 1990, 2007 LOW 26F IN 1965 PRECIP 3.78 INCHES IN 1962 PEAK GUST 60e MPH S IN 1942   RECORDS FOR OCTOBER 7 HIGH 88F IN 1963 (RECORD FOR MONTH) LOW 30F IN 1904,1986 PRECIP 1.75 INCHES IN 1972 PEAK GUST 54 W IN 2009   TODAY'S REPORT PREPARED BY: Robert Skilling