BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, NOVEMBER 22, 2014 ALL TIMES ARE IN EASTERN STANDARD TIME CLOUDS INCREASING ALONG WITH THE TEMPERATURES SOUTHWEST WIND QUITE GUSTY BY MID-MORNING After a cold day yesterday averaging 12 degrees below normal at 28 degrees, the thermometer is on the rise today reaching past 32 degrees by mid to late morning. The low this morning was 20 degrees or 12 degrees below average for this date. Today's Observations: 7 A.M. Weather: Clear sky, cumulus/stratocumulus offshore to the distant NNE-ESE and SSE-SSW, altocumulus/altocumulus lenticularis to the W-N-NE Temperature: 20F; Dew Point: 10F; Wind: WSW at 11 kts Sea-level pressure: 30.42 ins. Hg, rising slightly Visibility: 40 miles, except 45 miles WNW, distant haze 6-hr max temp: 22F 6-hr min temp: 20F 24-hr precip: 0.00 in. BHO SA 1155 CLR 40 300/20/10/2411/042/ CU/SC LYR ALG HRZN DSNT NNE-ESE AND SSE-SSE AC/ACSL LYRS W-N-NE VSBY WNW 45 DSNT HZ ALQDS/ 8/840 53002 10022 20020 10 A.M. Weather: Broken altocumulus, few lenticularis, layer invading, thin overcast cirrus, break in overcast distant SE-SW Temperature: 31F; Dew Point: 11F; Wind: WSW at 16G23 kts Sea-level pressure: 30.37 ins. Hg, falling then more quickly Visibility: 50 miles, light distant haze BH0 SA 1455 E140 BKN 250 -OVC 50 284/31/11/2416G23/037/ FEW ACSL AC INVADING BINOVC DSNT ESE-SW LGT DSNT HZ/ 8/051 58016 SUMMARY FOR FRIDAY, NOVEMBER 21, 2014 TEMPERATURE (DEGREES F) MAX.....34 NORMAL.....48 MIN.....22 NORMAL.....32 MEAN....28 NORMAL.....40 8DEPARTURE FROM 30-YEAR NORMAL........................-12 TOTAL DEPARTURE FOR THE MONTH.........................-47 [-2.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............37 DEPARTURE..........+12 TOTAL HEATING UNITS FOR THE MONTH.............504 DEPARTURE..........+47 TOTAL HEATING UNITS FOR THE SEASON............926 DEPARTURE.........- 94 TOTAL HEATING UNITS LAST SEASON TO DATE.......926 DIFFERENCE.......... 0 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................31 WNW AT 2:03 P.M. ASOS.......................38 WNW AT 2:03 P.M. DAVIS......................35 WNW AT 2:11 P.M. RMY 39 FASTEST MILE FOR YESTERDAY....................N/A MAXIMUM 2-MINUTE ASOS AVERAGE.................26 W AT 11:01 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE................24 W AT 11:01 A.M. AVERAGE WIND SPEED AND DIRECTION............16.0 WNW ASOS.....................14.7 DAVIS....................13.6 WNW (290 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..........3.70 DEPARTURE.....+0.39 ASOS..............3.73 TOTAL PRECIPITATION FOR THE YEAR..........45.25 DEPARTURE.....-1.83 ASOS.............45.60 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE......-0.1 TOTAL SNOWFALL FOR THE MONTH................5.3 DEPARTURE......+4.3 TOTAL SNOWFALL FOR THE SEASON...............5.3 DEPARTURE......+4.0 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/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 11/1 45/36/41/-5/0.79/0.0/000/00 35 NNE RMY N/A 11/2 37/32/35/-11/0.29/1.8/000/00 46 NW RMY 49 11/3 50/30/45/-6/0.00/0.0/584/95 39 WNW RMY 43 11/4 61/44/53/+8/0.00/0.0/208/34 28 SSW RMY 32 11/5 66/50/58/+13/0.00/0.0/006/01 29 SSW RMY N/A 11/6 52/45/49/+4/0.58/0.0/000/00 23 NE RMY 24 11/7 46/34/40/-5/0.00/0.0/079/13 39 NW RMY 42 11/8 47/30/39/-5/0.00/0.0/555/92 24 W RMY 25 11/9 56/38/47/+3/0.00/0.0/204/34 23 SSW RMY N/A 11/10 58/40/49/+5/0.00/0.0/592/99 17 S RMY 20 11/11 61/43/52/+9/0.00/0.0/358/60 22 S RMY 25 11/12 59/40/50/+7/0.00/0.0/095/16 22 W RMY 25 11/13 49/32/41/-2/0.08/T/450/76 21 NW RMY N/A 11/14 41/27/34/-8/0.29/3.5/442/75 * 23 NW RMY 27 11/15 37/24/31/-11/0.00/0.0/569/97 23 NW RMY 23 11/16 39/26/33/-9/0.00/0.0/012/02 17 S RMY 19 11/17 52/34/43/+2/1.67/0.0/000/00 29 ENE RMY 31 11/18 44/23/34/-7/0.00/0.0/494/85 33 W RMY 39 11/19 35/19/27/-14/0.00/0.0/544/94 31 WSW RMY N/A 11/20 47/26/37/-3/0.00/0.0/542/94 35 WSW RMY 41 11/21 34/22/28/-12/0.00/0.0/.../.. 31 WNW RMY 39 11/22 morning low temp: 20F since midnight; normal low now 32F * Daily precipitation and snowfall corrected DAILY RECORDS FOR NOVEMBER 2014: 11/2 - A NEW RECORD DAILY SNOWFALL: 1.8 INCHES; surpasses the previous record of 0.2 ins. in 1906, 1951 11/14 - DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES; ties previous record on this date in 1997 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 22 HIGH 70 IN 1931 LOW 12 IN 1987 PRECIP 1.78 INS IN 2005 SNOWFALL 9.0 INS IN 1971 PEAK GUST 70e SE IN 1945 RECORDS FOR NOVEMBER 23 HIGH 73 IN 1931 LOW 9 IN 1888 PRECIP 2.33 INS IN 2006 SNOWFALL 5.5 INS IN 1989 PEAK GUST 64e S IN 1953 TODAY'S REPORT PREPARED BY: Robert Skilling