BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, MARCH 21, 2014 ALL TIMES ARE IN EASTERN STANDARD TIME WINDS REMAIN GUSTY FROM THE WEST SUPPRESSING TEMPERATURES IN THE 30s AND 40s UNDER MOSTLY CLOUDY SKIES. Following a maximum of 51F yesterday, temperatures have struggled to reach 40 degrees today under intermittent sunshine thanks to a layer of stratocumulus. Winds have remained gusty, with several gusts nearing 40 MPH. Today's Observations: 7 A.M. Weather: Few cumulus in all directions, broken altocumulus/altocumulus lenticularis Temperature: 35F; Dew Point: 21F; Wind: W at 16G23 kts, Sea-level pressure: 29.82 ins. Hg, increasing, then more quickly Visibility: 80 miles, 35 miles SW-NNW 6-hr max temp: 35F 6-hr min temp: 21F 24-hr precip: none Snow depth: trace BHO SA 1155 E140 BKN 80 097/35/21/2716G23/982/ FEW CU ALQDS ACSL ALQDS VSBY SW-NNW 35 MI/ 8/140 53007 10036 20034 10 A.M. Weather: Broken stratocumulus Temperature: 40F Dew Point: 20F; Wind: W at 21G28 kts, Peak Wind: 29 kts W @ 8:57 AM EST Sea-level pressure: 29.84 ins. Hg, increasing, then steady Visibility: 70 miles BHO SA 1455 E36 BKN 70 106/40/20/2821G28/984/ PK WND 2829/1357/ 8/500 51009 1 P.M. Weather: Broken stratocumulus Temperature: 41F; Dew Point: 19F; Wind: WNW at 17G26 kts, Peak Wind: 31 kts WNW at 12:40 AM EST Sea-level pressure: 29.85 ins. Hg, increasing, then decreasing, but still higher than 3 hours ago Visibility: 80 miles, 50 miles NW-NNW 6-hr max temp: 41F 6-hr min temp: 35F BHO SA 1755 E44 BKN 80 109/41/19/2917G26/985/ VSBY NW-NNW 50 PK WND 2931/40/ 8/500 50003 10041 20035 WEATHER SUMMARY FOR THURSDAY, MARCH 20, 2014 TEMPERATURE (DEGREES F) MAX.....51 NORMAL.....45 MIN.....35 NORMAL.....28 MEAN....43 NORMAL.....37 DEPARTURE FROM 30-YEAR NORMAL.........................+6 TOTAL DEPARTURE FOR THE MONTH........................-64 [-3.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............22 DEPARTURE..........-6 TOTAL HEATING UNITS FOR THE MONTH.............700 DEPARTURE.........+74 TOTAL HEATING UNITS FOR THE SEASON...........5291 DEPARTURE.........+97 TOTAL HEATING UNITS LAST SEASON TO DATE......4738 DIFFERENCE.......+553 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................36 W AT 4:42 P.M. AERO.......................37 W AT 4:39 P.M. * ASOS.......................38 W AT 4:10 P.M. DAVIS......................35 W AT 12:05 P.M. RMY 39 FASTEST MILE FOR YESTERDAY....................28 W AT 4:11 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.................28 W AT 4:14 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE................24 W AT 4:14 P.M. AVERAGE WIND SPEED AND DIRECTION............14.3 W ASOS.....................14.2 DAVIS....................12.1 W [273 deg.] * the last of several occurrences.... PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE.............-0.19 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.00 DEPARTURE.............-2.52 ASOS..............1.01 TOTAL PRECIPITATION FOR THE YEAR..........11.09 DEPARTURE.............-0.85 ASOS.............11.55 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M........ 0.0 DEPARTURE..............-0.4 TOTAL SNOWFALL FOR THE MONTH................2.5 DEPARTURE..............-6.9 TOTAL SNOWFALL FOR THE SEASON..............84.3 DEPARTURE.............+27.9 PRELIMINARY CLIMATE SUMMARY FOR MARCH 2014 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane wind recording system 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 3/1 34/12/23/-8/0.00/0.0/458/68 28 SSW AERO 29 MPH SSW RMY 30 3/2 37/28/33/2/T/T/014/02 22 SW AERO 22 MPH SW RMY 29 3/3 28/11/20/-12/0.00/0.0/000/00 29 NNW AERO 30 MPH NNW RMY N/A 3/4 29/6/18/-14/0.00/0.0/444/65 17 SW AERO 16 MPH SW RMY 17 3/5 27/16/22/-10/0.02/0.3/000/00 21 NE AERO 20 MPH N RMY 23 3/6 26/7/17/-15/0.00/0.0/689/100 23 NNW AERO 23 MPH NNW RMY N/A 3/7 35/16/26/-7/0.00/0.0/449/65 18 SE AERO 17 MPH SE RMY 18 3/8 52/27/40/+7/0.00/0.0/673/97 26 NW AERO 29 MPH NNW RMY 27 3/9 40/25/33/0/0.00/0.0/669/96 28 NW AERO 29 MPH NW RMY 29 3/10 42/26/34/+1/0.03/0.8/196/28 21 S AERO 22 MPH S RMY 27 3/11 56/34/45/+11/0.00/0.0/450/64 33 W AERO 33 MPH W RMY 34 3/12 53/34/44/+10/0.50/T/120/17 29 NNW AERO 30 MPH NNW RMY 30 3/13 33/12/23/-11/0.14/1.4/007/01 43 NW AERO 45 MPH NW RMY 45 3/14 37/10/24/-11/0.00/0.0/498/70 39 SSW AERO 41 MPH SSW RMY 42 3/15 54/35/45/+10/0.01/0.0/450/63 50 WNW AERO 58 MPH WNW RMY 54 3/16 34/21/28/-7/0.00/0.0/.../.. 36 W AERO 36 MPH WNW RMY 37 3/17 30/13/22/-14/0.00/0.0/.../.. 25 N AERO 26 MPH N RMY 19 3/18 35/16/26/-10/0.00/0.0/.../.. 18 ENE AERO 16 MPH ENE RMY 18 3/19 44/23/34/-2/..../.../.../.. 24 E AERO 23 MPH E RMY 26 3/20 51/35/43/+6/..../.../.../.. 36 W AERO 37 MPH W RMY 39 3/21 morning low temp: 34F; the normal low is now 28F DAILY RECORDS FOR MARCH 2014 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR MARCH 21 HIGH 81 IN 1921 LOW 2 IN 1885 PRECIP 2.67 INS. IN 1974 SNOWFALL 10.6 INS. IN 1958 PEAK GUST 72 MPH NE IN 1958 RECORDS FOR MARCH 22 HIGH 81 IN 2012 LOW 3 IN 1885 PRE 3.48 INS. IN 2001 SNOW 8.7 INS. 1967 WIND 84e MPH E IN 1977 TODAY'S REPORT PREPARED BY: Brian Fitzgerald