BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, NOVEMBER 17, 2012 ALL TIMES ARE IN EASTERN STANDARD TIME VERY SUNNY AND COOL WITH LIGHT WINDS...HIGHEST PRESSURE SINCE LAST DECEMBER TODAY... The low temperature this morning of 32 was just below the average for the date of 33. There was a wide range of minimum temperatures across the area this morning from the middle 40s over Cape Cod to the low 20s in the interior. The cool temperatures are due to strong high pressure moving into New England today. The highest sea level pressure this morning of 30.61 inches is the highest since 30.67 inches was measured on December 3, 2011. The sky has been mostly sunny today with a few low clouds moving in from the ocean on a light wind that has veered from NNW to NE as of early afternoon. Today's observations: 7 A.M. Weather: Clear, few stratocumulus distant ENE-SSW, hazy Temperature: 33F; Dew Point: 26F; Wind: NNW at 10 kts Sea-level pressure: 30.57 ins. Hg, rising Visibility: 30 miles, hazy 6-hour min. temp: 32F BHO SA 1155 CLR 30 351/33/26/3410/057/ FEW SC DSNT ENE-SSW HAZY/ 8/500 51030 10034 20032 10 A.M. Weather: Clear, few stratocumulus distant SE-SSE, few cirrus distant SE-S, hazy Temperature: 43F; Dew Point: 30F; Wind: N at 7 kts, Wind: Direction variable NW-NNE Sea-level pressure: 30.61 ins. Hg, rising Visibility: 30 miles, hazy BHO SA 1455 CLR 30 365/43/30/3507/061/ FEW SC DSNT SE-SSE FEW CI DSNT SE-S HAZY WND 32V02/ 8/501 51014 1 P.M. Weather: Scattered stratocumulus, few cumulus fractus all quadrants, hazy Temperature: 45F; Dew Point: 33F; Wind: NE at 7 kts, Wind: Direction variable N-E Sea-level pressure: 30.59 ins. Hg, falling Visibility: 35 miles, hazy 6-hour max. temp: 47F BHO SA 1755 25 SCT 35 358/45/33/0407/059/ FEW CUFRA ALQDS HAZY WND 36V08/ 8/500 58007 10047 20033 WEATHER SUMMARY FOR FRIDAY, NOVEMBER 16 TEMPERATURE (DEGREES F) MAX.....45 NORMAL.....50 MIN.....31 NORMAL.....34 MEAN....38 NORMAL.....42 DEPARTURE FROM 30-YEAR NORMAL.....................-4 TOTAL DEPARTURE FOR THE MONTH....................-23 [-1.6 DEGREES/DAY] HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY............27 DEPARTURE........+4 TOTAL HEATING UNITS FOR THE MONTH...........358 DEPARTURE.......+23 TOTAL HEATING UNITS FOR THE SEASON..........766 DEPARTURE......-132 TOTAL HEATING UNITS LAST SEASON TO DATE.....659 DIFFERENCE.....+107 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..............18 NNW AT 10:13 P.M. AERO...................17 NNW AT 10:13 P.M. ASOS...................17 N AT 10:13 P.M. DAVIS..................16 NNW AT 10:12 P.M. RMY 19 THE FASTEST MILE FOR YESTERDAY............12 NNW AT 10:17 P.M. * MAXIMUM 2-MINUTE ASOS AVERAGE.............13 N AT 10:14 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE............12 NNW AT 10:19 P.M. AVERAGE WIND SPEED AND DIRECTION.........8.0 NNW ASOS..................7.2 DAVIS.................6.6 NNW [348 deg] * last of several occurrences... PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE..........-0.15 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.49 DEPARTURE..........-1.02 ASOS..............1.52 TOTAL PRECIPITATION FOR THE YEAR..........34.69 DEPARTURE.........-11.59 ASOS.............34.70 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M.........0.0 DEPARTURE...........0.0 TOTAL SNOWFALL FOR THE MONTH...............4.0 DEPARTURE..........+3.4 TOTAL SNOWFALL FOR THE SEASON..............4.0 DEPARTURE..........+3.1 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2012 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 11/1 56/42/49/+3/0.00/371/60 28 SW AERO 28 MPH SW RMY 27 11/2 51/41/46/0/0.02/000/00 24 WNW AERO 22 MPH WNW RMY 22 11/3 52/37/45/-1/0.00/319/52 29 NW AERO N/A RMY 28 11/4 52/34/43/-2/0.00/587/96 27 NW AERO 25 MPH NW RMY 26 * 11/5 45/28/37/-8/0.00/292/48 25 NW AERO 25 MPH NW RMY 25 11/6 40/25/33/-12/0.00/600/99 22 ENE AERO 20 MPH ENE RMY N/A 11/7 42/29/36/-9/0.78/3.5/000/00 48 NNE AERO 52 MPH NNE RMY 51 11/8 36/29/33/-11/0.26/0.5/000/00 43 N AERO 50 MPH N RMY 44 11/9 51/34/43/-1/0.00/0.0/569/95 33 NW AERO 35 MPH NW RMY 32 11/10 53/36/45/+1/0.00/0.0/561/94 25 W AERO 23 MPH W RMY 23 11/11 62/40/51/+8/0.00/0.0/357/60 28 SSW AERO 27 MPH SSW RMY 28 11/12 66/50/58/+15/0.00/0.0/385/65 33 SSW AERO 33 MPH S RMY N/A 11/13 63/37/50/+7/0.43/0.0/000/00 45 S AERO 45 MPH S RMY N/A 11/14 44/33/39/-3/0.00/0.0/559/95 27 NNE AERO 23 MPH N RMY 24 11/15 39/32/36/-6/0.00/0.0/.../.. 23 N AERO 21 MPH N RMY 25 11/16 45/31/38/-4/0.00/0.0/.../.. 18 NNW AERO 17 MPH NNW RMY 19 * Sunshine minutes for 4th corrected from 570 to 587 11/17 morning low temp: 32F; the normal low is now 33F DAILY RECORDS FOR NOVEMBER 2012 11/7 - NEW DAILY RECORD MAXIMUM SNOWFALL OF 3.5 INCHES; surpasses the previous record of 1.0 inch in 1967 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 17 HIGH 74 IN 1928 LOW 10 IN 1924 PRECIP 1.92 INCHES IN 1920 SNOWFALL 1.0 INS IN 1980 PEAK GUST 61 SSE IN 2006 RECORDS FOR NOVEMBER 18 HIGH 72 IN 1963 LOW 10 IN 1936 PRECIP 1.80 INS IN 1929 SNOWFALL 6.3 INS IN 1980 PEAK GUST 60 SW IN 1987 TODAY'S REPORT PREPARED BY: Mike Iacono/Peter Volpe