BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY WEDNESDAY, OCTOBER 23, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME   BELOW NORMAL DAILY TEMPERATURES RETURNING TODAY CLOUDS INCREASE AND THICKENING AFTER EARLY MORNING SUNSHINE LINE OF CLEARING FAR TO THE WEST AS A THICK ALTOSTRATUS LAYER COVERS THE WHOLE SKY   Temperatures struggled up to 50 degrees after a normal morning low of 40F so today will average out colder than the normal of 49 degrees.  Lots of virga was observed falling from the altostratus layer early this afternoon but a line of clearing could be seen along the horizon distant W-NW. Winds continue very light early this afternoon as the barometer continues to fall steadily a total of 3 millibars in 3 hours ending 2 p.m. EDT.   The precipitation total for the month of 0.98 inch is OVER 2 inches drier than normal this late into October.   Today's Observations:   7 A.M. Weather: Scattered stratocumulus, patch dense cirrus with virga vicinity of station N dissipating, clouds dissipating past hour   Temperature: 41F; Dew Point: 32F; Wind: W at 4 kts Sea-level pressure: 29.77 ins. Hg, falling then rising slightly   Visibility: 60 miles, except 70 miles northwest  6-hr min temp: 40F 24-hour precip: trace  BHO SA 1155 50 SCT 200 SCT 60 082/41/32/2604/977/ SC ALQDS DSPTG PST HR PTCH DNS CI/VIRGA VC N DSPTNG PTCHS THN F BLO SMT/INVSN VSBY NW 70 LGT DSNT HZ/ 8/502 55005 10043 20040   10 A.M. Weather: Overcast altostratus/altocumulus, thin spots/small break in overcast distant N-E, higher clouds visible distant N-E   Temperature: 48F; Dew Point: 30F; Wind: WNW at 3 kts, Wind: Light Sea-level pressure: 29.75 ins. Hg, falling then more rapidly  Visibility: 70 miles, light distant haze   BHO SA 1455 E150 200 OVC 70 073/48/30/2903/975/ THN SPTS IOVC/SML BINOVC DSNT N-E HIER CLDS VSB DSNT N-E VIRGA W SUN DMLY VSB LGT DSNT HZ WND LGT/ 8/077 58009   1 P.M. Weather: Overcast altostratus, few stratocumulus distant SE-S, virga all quadrants, break in overcast along line of distant clearing extending along horizon W-NW, cumulus, few moderate cumulus forming along line of clearing distant W-NNW Temperature: 49F; Dew Point: 31F; Wind: NW at 5 kts,  Wind: Light Sea-level pressure: 29.66 ins. Hg, falling then more rapidly  Visibility: 70 miles, NW 80 miles  6-hr max temp: 50F  BHO SA 1755 E80 OVC 70 043/49/31/3105/966/ FEW SC DSNT SE-S LINE OF CLRG XTDNG ALG HRZN DSNT W-NW CU/MDT CU FRMG ALG LINE OF CLRG DSNT W-NNW VSBY NW 80 LGT DSNT HZ WND LGT/ 8/52/ 58030 10050 20041   WEATHER SUMMARY FOR TUESDAY, OCTOBER 22, 2013   TEMPERATURE (DEGREES F) MAX.....69    NORMAL.....58 MIN.....44    NORMAL.....41 MEAN....57    NORMAL.....49   DEPARTURE FROM 30-YEAR NORMAL.....................+8 TOTAL DEPARTURE FOR THE MONTH...................+113 [+4.9 DEGREES/DAY]   COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY..............0   DEPARTURE..........0 TOTAL COOLING UNITS FOR THE MONTH..............5   DEPARTURE..........0 TOTAL COOLING UNITS FOR THE SEASON...........701   DEPARTURE........+99 TOTAL COOLING UNITS LAST SEASON TO DATE......767   DIFFERENCE.......-66   HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............8  DEPARTURE.........-8 TOTAL HEATING UNITS FOR THE MONTH.............153  DEPARTURE.......-114 TOTAL HEATING UNITS FOR THE SEASON............299  DEPARTURE.......-110 TOTAL HEATING UNITS LAST SEASON TO DATE.......316  DIFFERENCE.......-17   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................25 SSW AT  11:04 A.M. *                     AERO.......................27 SSW AT  11:04 A.M. *                        ASOS.......................26 SSW AT  11:05 A.M.                       DAVIS......................27 S   AT  10:25 A.M. RMY 27 FASTEST MILE FOR YESTERDAY....................19 SSW AT  10:27 A.M.   MAXIMUM 2-MINUTE ASOS AVERAGE.................22 SSW AT  10:26 A.M.   MAXIMUM 2-MINUTE DAVIS AVERAGE................21 SSW AT  10:27 A.M.    AVERAGE WIND SPEED AND DIRECTION.............12.7 SSW                    ASOS......................12.3                    DAVIS.....................11.8 SW [220 degrees] * last of several occurrences...   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..........0.98   DEPARTURE.............-2.31                          ASOS..............0.97 TOTAL PRECIPITATION FOR THE YEAR..........42.90   DEPARTURE.............+0.53                          ASOS..............N/A* *ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals   PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2013 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane wind recording system gust RMY:  RMY = R.M. Young wind gust recording system added 8/9/2011 TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized   10/1  75/50/63/+6/0.00/676/96         16 WNW AERO 16 MPH WNW RMY 18 10/2  78/56/67/+10/0.00/666/95        29 W   AERO 30 MPH W   RMY 29 10/3  77/56/67/+11/0.00/628/90        20 WNW AERO 20 MPH WNW RMY N/A 10/4  67/56/62/+6/0.26/028/04         18 NW  AERO 20 MPH NW  RMY N/A 10/5  67/56/62/+6/0.01/125/18         14 ENE AERO 12 MPH ENE RMY N/A 10/6  58/53/56/+1/0.56/000/00         20 NE  AERO 20 MPH NE  RMY N/A 10/7  75/57/66/+11/0.07/213/31        48 S   AERO 55 MPH S   RMY 55 10/8  65/50/58/+4/0.00/581/85         25 NW  AERO 27 MPH NW  RMY 28 10/9  59/49/54/0/0.00/545/80          25 ENE AERO 24 MPH ENE RMY 25 10/10 61/46/54/0/0.00/095/14          18 NE  AERO 17 MPH NE  RMY 18 10/11 67/50/59/+6/0.00/473/70         20 NE  AERO 20 MPH NE  RMY N/A 10/12 59/50/55/+2/0.02/007/01         30 ENE AER0 31 MPH ENE RMY 32 10/13 59/46/53/0/0.00/482/72          23 ENE AERO 23 MPH ENE RMY 23 10/14 64/42/53/+1/0.00/580/87         15 SSW AERO 15 MPH SSW RMY 15 10/15 66/50/58/+6/0.00/266/40         16 ESE AERO 16 MPH ESE RMY N/A 10/16 60/49/55/+4/0.00/013/02         23 ESE AERO 24 MPH ESE RMY 23 10/17 70/52/61/+10/0.06/277/42        21 S   AERO 23 MPH S   RMY N/A 10/18 67/50/59/+8/0.00/630/96         32 WNW AERO 32 MPH W   RMY 31 10/19 65/45/55/+5/0.00/379/58         21 W   AERO 22 MPH W   RMY N/A 10/20 61/44/53/+3/0.00/644/99         33 W   AERO 36 MPH W   RMY 34 10/21 67/43/55/+5/0.00/.../..         23 SSW AERO 25 MPH SSW RMY 27 10/22 69/44/57/+8/T/.../..            25 SSW AERO 27 MPH SSW RMY 27   10/23 morning low temp: 40F; the normal low is now 40F   DAILY RECORDS FOR OCTOBER 2013 None so far.   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR OCTOBER 23 HIGH 82F IN 1947 LOW 24F IN 1969 PRECIP 2.18 INCHES IN 1956 SNOWFALL 3.0 INCHES IN 1891 PEAK GUST 78e MPH NW IN 1941   RECORDS FOR OCTOBER 24 HIGH 79F IN 1963 LOW 22F IN 1969 PRECIP 2.96 INCHES IN 1890 SNOWFALL 1.8 INCHES IN 1960 PEAK GUST 70 MPH SE IN 1959   TODAY'S REPORT PREPARED BY: Robert Skilling