From: Robert Skilling To: Charlie Orloff (BHO) Subject: BLUEHILL MA 041000 HI THN OVC 50 24/8/SSE07/3043F/LO 13 Date: Sunday, February 04, 2001 11:04 AM BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA SUNDAY FEBRUARY 4 2001 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ January 2001 still included on this page below... DAILY DISCUSSION....10 A.M. 2/4/2001 Coldest temperature since January 11 this morning with minimum of 13 degrees here at the summit.... DAILY FEBRUARY 2001 DATA....AT BLUE HILL... max/min/mean/dep/precip/snow/sun mins/%/pk gust (no sunshine data available yet) 1 45/30/38/+13/0/0/.../../31 W 2 38/27/33/+8/0.02/0.2/.../../24 W 3 32/18/25/-+/0/T/T/.../../40 W TODAY'S MANUAL OBSERVATIONS.... 2/4/2001 SUN BHO SA COR 1155 250 -SCT 300 -BKN 50 305/14/6/2906/043/ SC OFFSHR DSNT NE FEW AC/ACSL ESE-SW CC ALQDS/ 8/549/ 4/007 53012 10016 20013 BHO SA 1455 250 -BKN 300 -OVC 50 304/24/8/1506/043/ SC OFFSHR DSNT NE AC/FEW ACSL SE-W THN K LYR NW-NE/ 8/547/ 58001 RECORDS FOR FEBRUARY 04 HIGH 65 IN 1991 LOW -04 IN 1886,1908 PRECIP 1.80 INS IN 1926 WIND 89 MPH SSE IN 1972 RECORDS FOR FEBRUARY 05 HIGH 65 IN 1991 LOW -14 IN 1918 PRECIP 1.43 INS IN 1920 WIND 67 MPH WNW IN 1967 Robert Skilling JANUARY 2001.....WARMER AND DRIER THAN NORMAL... MONTH OF JANUARY 20001 HAD LOWEST AVERAGE MONTHLY WIND SPEED IN OVER 100 YEARS OF RECORDS...LOWEST WIND GUST (43 mph) CHECKED BACK TO 1940! 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% ] 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 Robert Skilling