BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA FRIDAY DECEMBER 21 2001 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ DAILY DISCUSSION.....12/21/2001...@ 1 P.M. DECEMBER TEMPERATURE DEPARTURE REACHES + 207 DEGREES FOR 20 DAYS! The month continues to average just over 10 degrees warmer than normal daily... A trace of snow in morning flurries.... TODAY'S OBSERVATIONS.... 12/21/2001 FRI 7 a.m. BHO SA 1155 E60 BKN 10SW- 051/32/29/3016G25/968/ FEW LWR CUFRA/CU VSBY SW-N 8 SE 30 SB30 PCPN VRY LGT PK WND 2927/41/ 8/800/ 53016 6000/ 10032 20029 10 a.m. BHO SA 1455 50 SCT E75 BKN 60 088/35/21/3120G29/979/ CU FRMG SW-NW FEW SCSL/ACSL S-NW VIRGA ALQDS VSBY NE-SE 30 NW 80 PK WND 3133/03/ 8/540/ 51037 6000/ 1 p.m. BHO SA 1755 45 SCT 70 SCT 250 SCT 70 100/37/18/3118G27/983/ FEW LWR CU ACSL ALQDS PK WND 3130/27/ 8/841/ 53012 6000/ 10038 20032 DATA RECORDED FOR THURSDAY DECEMBER 20.. TEMPERATURES.... MAX : 42 MIN: 33 // ASOS MAX: 42 ASOS MIN: 33 NORMAL HIGH AND LOW: 36/21 MEAN 38 [+ 9] TOTAL DEP FOR MONTH TO DATE: + 207 degrees (ERROR correction from yesterday) DECEMBER is averaging 10.2 degrees WARMER THAN NORMAL.... PRECIPITATION....ON 12/21 AS OF 7 A.M. 24 HRS ENDING 7 A.M. ... trace ASOS......................0.00 IN. DEC. TOTAL................2.81 IN. (STD GAGE) DEP. FROM NORMAL........- 0.32 IN. PRECIP. TOTAL YEAR 2001 TO DATE: 44.78 {- 2.48 IN. ] SNOWFALL.... ON 12/21 AS OF 7 A.M. 24 HRS ENDING 7 A.M.... trace DEC. TOTAL............. 10.1 IN. SEASONAL TOTAL TO DATE. 10.1 IN. WIND DATA....FOR 12/20 PEAK GUST ASOS: 31 MPH W AT 8:13 P.M. PEAK GUST 420C: 35 MPH W AT 8:13 P.M. PEAK GUST AERO: 33 MPH W AT 8:13 P.M. PRELIMINARY DAILY DEC. 2001 DATA....AT BLUE HILL... max/min/mean/dep/precip/snowfall/sun mins/%/pk gust/TSTM = thunderstorm day Aero = the aerovane wind system ) 12/1 70/45/58/+23/0/0/536/96/ 36 WSW (Aero 36 MPH SW ) 12/2 49/38/44/+9/0/0/006/01/ 21 WNW 12/3 52/35/44/+10/0/0/556/100/ 31 MPH SSW (Aero 33 MPH SSW ) 12/4 56/41/49/+15/T/0/516/93/ 24 SW 12/5 65/46/56/+22/0.01/0/393/71/ 24 SSW 12/6 70/52/61/+28/0/0/221/40/ 40 SW (Aero 42 MPH SW ) 12/7 55/39/47+14/0/0/490/89/ 22 ENE 12/8 40/30/35/+3/0.23/2.5/204/37/ 20 NNW 12/9 32/27/30/-2/0.62/6.0/011/02/ 22 ENE 12/10 40/27/34/+2/0/0/.../../ 20 S 12/11 45/36/41/+10/0/0/.../../ 18 NNE (Aero 20 mph NNE ) 12/12 40/34/37/+6/0/0/.../../ 28 NE 12/13 49/37/43/+12/0.05/0/000/00/ 23 SW 12/14 54/44/49/+19/0.55/0/000/00/ 29 NNW 12/15 44/27/36/+6/0.11/T/076/14/ 31 NW (Aero 36 MPH NW) 12/16 37/24/31/+1/0/0/.../../ 32 NW 12/17 40/26/33/+4/.../1.4/000/00/ 28 SE 12/18 40/31/36/+7/.../0.2/.../../ 37 NW 12/19 45/31/38/+9/0/0/.../../ 31 W 12/20 42/33/38/+9/T/0/016/03/ 35 W (Aero 33 MPH W 12/21 morning low was 29 deg. (normal low now 21 degrees) RECORDS FOR DECEMBER 21 HIGH 60 IN 1957 LOW -10 IN 1942 PRECIP 2.01 INS 1946 SNOWFALL: 11.4 INS. 1954 PEAK GUST 77 MPH SSE IN 1957 RECORDS FOR DECEMBER 22 HIGH 62 IN 1994 LOW - 5 IN 1921 PRECIP 1.52 INS 1975 SNOWFALL: 8.8 INS. 1975 PEAK GUST 62 MPH WNW IN 1998 e = estimated Robert Skilling