BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA MONDAY APRIL 08 2002 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ DAILY DISCUSSION.....4/8/2002....11 a.m. FOUR CONSECUTIVE COOLER THAN NORMAL DAYS... The past 4 days have been below normal in temperature and we find now that for the first time since last July there is a current negative temperature departure for April to date of -5 degrees. TWO DAYS OF OBS... 4/7/2002 SUN 8 A.M. BHO SA 1155 CLR 60 290/27/6/3210/039/ FEW SC ALG/OFFSHR ENE-SE/ 8/500/ 51023 10027 20023 11 A.M. BHO SA 1455 CLR 70 293/35/5/2907/040/ WND 25V33/ 50003 4/8/2002 MON 8 A.M. BHO SA 1155 E75 OVC 30 292/40/30/2014G21/039/ BINOVC NE-E HIER CLDS VSB NE-S VSBY NE-SE 40 SW-NW 25 LGT HAZE ALQDS/ 8/071/ 51010 10040 20036 11 A.M. BHO SA 1455 E90 OVC 25 291/45/32/2015G22/039/ SUN DMLY VSB HAZY/ 8/07// 58001 THE DATA RECORDED FOR SUNDAY APRIL 7... TEMPERATURES....CALENDAR DAY MIDNIGHT TO MIDNIGHT....EST MAX : 46 MIN: 23 // ASOS MAX: 46 ASOS MIN: 23 NORMAL HIGH AND LOW: 52/34 MEAN 35 [ - 8 ] TOTAL DEPARTURE FOR APRIL TO DATE: - 5 deg. PRECIPITATION....ON 04/08 AS OF 8 A.M. 24 HRS ENDING 8 A.M. . 0.00 IN. ASOS......................0.00 INS. TOTAL FOR APRIL TO DATE...1.20 INS. STD GAGE DEP. FROM NORMAL.........+0.15 INS. PRECIP. TOTAL YEAR 2002: 11.40 INS. DEPARTURE FROM NORMAL....-3.28 INS. SNOWFALL.... ON 04/08 AS OF 8 A.M. 24 HRS ENDING 7 A.M.... 0.0 INS. APRIL TOTAL SNOWFALL......0.6 INS. SEASONAL TOTAL TO DATE. 39.6 INS. WIND DATA....FOR 04/07... PEAK GUST ASOS: 28 MPH N AT 12:04 A.M. PEAK GUST 420C: 29 MPH NNW AT 12:12 A.M. PEAK GUST AERO: 28 MPH NNW AT 12:12 A.M. APRIL 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA.... MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUNSHINE/ OFFICIAL 420C WIND GUST Aero = Aerovane recording wind system 4/1 56/38/47/+6/1.02/0/244/32/ 54 W 4/2 59/33/46/+4/0/0/582/76/ 37 W 4/3 66/36/51/+9/0.16/0/138/18/ 43 S (Aero 45 MPH WNW ) 4/4 48/31/40/-2/0/0/.../../ 31 WNW 4/5 44/26/35/-8/0.02/0.6/.../../ 22 NNW 4/6 45/28/37/-6/T/T/.../../ 31 NW 4/7 46/23/35/-8/0/0/.../../ 29 NNW 4/8 morning low 36 RECORDS FOR APRIL 08 HIGH 87 IN 1991 LOW 17 IN 1888 PRECIP 1.78 INS 1956 SNOWFALL: 9.3 INS. 1956 PEAK GUST 70 MPH S IN 2000 RECORDS FOR APRIL 09 HIGH 83 IN 1991 LOW 18 IN 1888 PRECIP 2.38 INS 1935 SNOWFALL: 11.0 INS. 1917 PEAK GUST 72 MPH WNW IN 1972 e = estimated Robert Skilling