From: Matthew Douglas To: Subject: BLUEHILL MA 021000 OVC 30 31/22/SE3/3006F/ LO 27 Date: Friday, February 02, 2001 11:11 AM BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA FRIDAY FEBRUARY 02 2001 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ DAILY DISCUSSION....11 A.M. 2/2/2001 JANUARY 2001.....WARMER AND DRIER THAN NORMAL... MONTH OF JANUARY 20001 HAD LOWEST AVERAGE MONTHLY WIND SPEED IN OVER 100 YEARS OF RECORDS... It was not even close! The average wind speed was 12.2 MPH (corrected for all in house data of record). The previous record was 13.3 MPH in January 1984. Consider that the average over the past 30 years has been 15.9 MPH for the month. The peak gust of only 43 MPH NNW for the month was one of if not the lowest peak wind gust for January. We have not had time to research this data at this time but will check it out later. WHERE WAS THE WARM AIR? WHERE WAS THE COLD AIR? In addition there was other "blah" weather during January. The high temperature finally made it to 49 degrees on the 31st but we have to look back to 1987 to find a lower monthly maximum. The minimum temp. of 9 degrees was way above the average low for the month which is down a few degrees below zero. The last time we had a warmer January minimum was during 1990 with 12 degrees. That reading in 1990 tied the highest monthly minimum temperature on the entire record set in 1937. THE JANUARY 2001 STATS.... Mean: 27.3 [ +2.0 ] High: 49/31st Low: 09/10th HDD: 1160 [ -71 ] Precip: 3.15 [ -1.00 ] Snow: 19.7 [ + 4.2 ] Sunshine: 51% of possible [ + 5% ] PLEASE SEE.... OUR JANUARY DAILY DATA AT BOTTOM OF PAGE... We currently report 8 inches of total snow cover recorded early this morning at 7 a.m. at the snow stake in the enclosure and this is very representative of snow depth here at the summit of the hill. TODAY'S MANUAL OBSERVATIONS AT BLUE HILL... 7 A.M. 2/1/2001 THU BHO SA 1155 E60 BKN 150 BKN 200 OVC 50 192/30/19/0310/010/ FEW BINOVC NE-E FEW SC OFFSHR NE-E THN K LYR ALNG HRZN N-SE WND GRDLY VEERING/ 8/532/ 4/008 58014 10030 20028 10 A.M. BHO SA 1455 E150 BKN 200 OVC 30 178/31/22/1203/006/ FEW SC OFFSHR NE-E THN K LYR ALNG HRZN SE-SW-N WND L/V/ HAZY/ 8/532/ 58014 DATA RECORDED FOR THURSDAY FEBRUARY 1... TEMPERATURES.... MAX 45 MIN 30// ASOS MAX 44 ASOS MIN 30 MEAN 38 [+ 13 ] TOTAL DEP FOR MONTH: + 13 degrees PRECIPITATION.... 24 HRS ENDING 7 A.M...NONE MONTH: NONE [ - 0.14] YEAR: 3.15 [ - 1.14] SNOWFALL... 24 HRS ENDING 7 A.M...NONE MONTH: NONE INS SEASON: 30.2 INS. PEAK GUST: 31 MPH W @ 12:47 p.m. PEAK GUST AERO: 34 MPH W @ 12:47 P.M. DAILY JANUARY 2001 DATA....AT BLUE HILL... max/min/mean/dep/precip/snow/sun mins/%/pk gust 1 31/18/25/-1/0/0/549/100/28 W 2 28/13/20/-6/0/0/490/89/28 NW 3 31/12/22/-4/0/0/512/93/24 NW 4 31/19/25/-1/0/0/282/51/22 W 5 31/18/25/-1/0.09/1.0/205/37/21 SE 6 35/27/31/+5/0.27/1.8/0 / 0 / 28 NW 7 34/21/28/+2/0/0/405/73/24 WNW 8 38/30/34/+8/0.09/1.0/183/33/14 N 9 31/18/25/-1/0.23/4.0/0 /0/ 27 W 10 23/9/16/-9/T/T/548/98/43 NNW 11 37/13/25/0/0/185/ 33/ 36 W 12 29/20/25/0/0/ 550/98/ 27 W 13 35/16/26/+1/0 / 0/ 417/74/ 21 WSW 14 41/25/33/+8/ 0 / 0 / 209/37/ 22 WSW 15 35/22/29/+4/ 0.50/ 2.5/ 0 / 0/ 25 NE 16 38/23/31/+6/ T / 0/068/12/30 WNW 17 39/24/32/+7/ 0 / 0/290/51/30 WNW 18 29/18/24/-1/ T/T/ 223/39/ 18 SSE 19 35/27/31/+6/0.50/0.3/ 0 /0/ 20 N 20 32/25/29/+4/0.17/1.5/0 / 0/ 31 NE 21 28/17/24/-1/0.68/7.5/185/32/ 38 NNW 22 33/14/24/-1/0 / 0/ 556/96/ 21 W 23 36/20/28/+3/ 0 /0/ 500/86/ 24 S 24 38/24/31/+6/ 0/ 0/ 262/45/ 21 NNW 25 38/23/31/+6/ 0/ 0/ 486/83/ 23 NNW 26 35/15/25/0/ 0 / 0/ 559/95/ 21 NNW 27 35/24/30/+5/ 0.01/0.1/ 0 / 0/ 30 WNW 28 33/21/27/+2/ 0 / 0/ 551/93/ 32 WNW 29 35/17/26/+1/ 0 / 0/ 576/ 97/ 24 SW 30 43/25/36/+9/ 0.56/ T /000 /00/ 38 ESE 31 49/31/40/+15/0.05/0/ 161 / 27/ 38 W RECORDS FOR FEBRUARY 02 HIGH 55 IN 1951, 1973 LOW -12 IN 1961 PRECIP 1.91 INS IN 1999 WIND 92 MPH SW IN 1970 RECORDS FOR FEBRUARY 03 HIGH 58 IN 1991 LOW -07 IN 1955 PRECIP 2.14 INS IN 1970 WIND 102 MPH S IN 1970 Matt Douglas / Robert Skilling