BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA   DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, NOVEMBER 19, 2007 ALL TIMES ARE IN EASTERN STANDARD TIME   FIRST OBSERVED OCCURRENCE OF FROZEN PRECIPITATION NOVEMBER TEMPERATURES STILL ON THE COLD SIDE OF NORMAL   The first frozen precipitation to be observed here this season fell not in the form of snowflakes but takes the form of the solid equivalent of drizzle or very light snow grains today.     Today was the 4th day in a row with below normal temperatures after three warmer than normal days last week.  November continues close to 2 degrees colder than normal.    Today's observations:   7 A.M.   Weather: Overcast stratocumulus with small breaks   Temperature: 31F, Dew point: 25F, Wind: NW at 08 kts Sea-level pressure: 30.53 inches Hg, rising Visibility: 60 miles, NE-SE 25 miles, NW 75 miles 6-hour min temp: 30F BHO SA 1155 E45 OVC 60 337/31/25/3208/053/ FEW LWR CU NE-E SML BINOVC/THN SPTS IOVC CLR SKY BND DSNT W ALG HRZN VIRGA E-SW VSBY NE-SE 25 WNW 75/ 8/8// 53007 10034 20030   10 A.M.   Weather:Overcast stratocumulus, break to the west, Very light snow grains occurring, began 50 past the hour   Temperature: 33F, Dew point: 26F, Wind: N at 14G23 kts Sea-level pressure: 30.54 inches Hg, rising Visibility: 50 miles, 20 miles NE, 70 miles northwest 3-hourly precip: trace and trace of snow BHO SA 1455 E38 OVC 50SG- 341/33/26/3614G23/054/ FEW LWR SC NE-E BINOVC/CLR SKY BND SW-NW VSBY NE-E 20 NW 65 SB50 PCPN VRY LGT WND 33V04/ 8/5// 51004 MANUAL 6000/     1 P.M.   Weather: Overcast stratocumulus, break distant SW-W, Very light snow grains occurring. Temperature: 33F, Dew point: 24F, Wind: N at 10G20 kts Sea-level pressure: 30.49 inches Hg, falling  Visibility: 50 miles, briefly 10 miles SE-S in snow grains, NW 70 miles  6-hourly precip: trace and trace of snow BHO SA 1755 E30 OVC 50SG- 325/33/24/3610G20/049/ BINOVC DSNT SW-W CU VSB ALG HRZN SW-W VSBY BRFLY 10 SE-S NW 70 PCPN VRY LGT WND 32V04/ 8/8// 58016 MANUAL 6000/ 10034 20031     WEATHER SUMMARY FOR SUNDAY, NOVEMBER 18   TEMPERATURE (DEGREES F) MAX.....41    NORMAL.....48 MIN.....29    NORMAL.....34 MEAN....35    NORMAL.....41 DEPARTURE FROM 30-YEAR NORMAL...........-6 TOTAL DEPARTURE FOR THE MONTH..........-35 [-2.1 DEGREES/DAY]   HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY............30  DEPARTURE.......+6 TOTAL HEATING UNITS FOR THE MONTH...........416  DEPARTURE......+34 TOTAL HEATING UNITS FOR THE SEASON..........762  DEPARTURE.....-211 TOTAL HEATING UNITS LAST SEASON TO DATE.....797  DIFFERENCE.....-35   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY............24 ENE AT 11:42 P.M.                       AEROVANE.............22 ENE AT 11:42 P.M.                       ASOS.................22 NE  AT 11:56 P.M.                       DAVIS................22 NE  AT 11:56 P.M.    FASTEST MILE FOR YESTERDAY..............15 ENE AT 11:42 P.M.        MAXIMUM 2-MINUTE ASOS AVERAGE...........15 NE  AT 11:57 P.M.    MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 NE  AT 11:44 P.M.    AVERAGE WIND SPEED AND DIRECTION...... 9.1 NE                    ASOS............... 8.5                     DAVIS.............. 9.3 N [360 deg]      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..........2.91  DEPARTURE....+0.11                          ASOS..............2.89  TOTAL PRECIPITATION FOR THE YEAR..........38.45  DEPARTURE....-6.37                          ASOS.............37.72     SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.....-0.1 TOTAL SNOWFALL FOR THE MONTH................0.0  DEPARTURE.....-1.5 TOTAL SNOWFALL FOR THE SEASON...............0.0  DEPARTURE.....-1.7   PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2007...CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW*/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST   AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available   * entries beginning 19th   11/1  66/42/54/+7/0/050/08     37 S 11/2  50/37/44/-2/0/446/73     29 NE 11/3  46/40/43/-3/0.95/000/00  51 N   Aero 50 MPH NNW  11/4  54/37/46/0/0/503/82      33 W   Aero 33 MPH W    11/5  56/40/48/+3/0/483/79     29 SE 11/6  53/37/45/0/0.75/000/00   35 SSE Aero 35 MPH SSE  11/7  50/32/41/-4/0/551/91     30 W 11/8  43/28/36/-8/0/494/82     22 W 11/9  44/32/38/-6/0.09/331/55  21 NNE 11/10 39/28/34/-10/0.05/383/64 32 N 11/11 42/24/33/-10/0/590/99    23 WNW 11/12 42/27/35/-8/0.02/024/04  25 SSE 11/13 55/42/49/+6/0.33/308/52  28 S 11/14 58/41/50/+8/0/.../..     37 S 11/15 64/40/52/+10/N/A/.../..  44 SSE Aero 46 MPH SSE 11/16 44/30/37/-5/N/A/.../..   51 W   Aero 54 MPH W 11/17 40/28/34/-7/0/.../..     37 W 11/18 41/29/35/-6/0/.../..     25 ENE   11/19 morning low temp. 30F; normal low now 33F.        first frozen precip. of season takes form of       very light snow grains mid-late a.m.   NEW DAILY RECORDS FOR NOVEMBER 2007: NONE   DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):   RECORDS FOR NOVEMBER 19 HIGH 72 IN 1941 LOW 10 IN 1936 PRECIP 1.92 INCHES IN 1926 SNOWFALL 11.0 INCHES IN 1986 PEAK GUST 59e E IN 1945   RECORDS FOR NOVEMBER 20 HIGH 72 IN 1953 LOW 10 IN 1894 PRECIP 2.78 INS IN 1988 SNOWFALL 3.0 INS IN 1897 PEAK GUST 73e S IN 1950   TODAY'S REPORT PREPARED By: Robert Skilling