BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, MARCH 10, 2005 YESTERDAY WAS COLDEST MARCH DAY SINCE 1996... ALSO YESTERDAY AVERAGING 20 DEG. BELOW NORMAL WAS 3RD DAY THIS SEASON TO BE THAT FAR BELOW THE NORMAL... Yesterday was even a cold day by January standards but for March it was the kind of cold we had not experienced in the past nine years... The day averaged 20 degrees below normal and joined with two days during January to have the greatest negative departure of this season. March is now averaging more than 6 degrees COLDER THAN NORMAL DAILY TODAY'S OBSERVATIONS.... 3/10/2005 THU 7 a.m. clear with 55 miles visibility and 12 degrees; dewpoint 03; wind sw at 14 mph; six hourly min. temp. 11 and 11 inches of snow on the ground BHO SA 1155 CLR 55 068/12/3/2312/973/ FEW CU OFFSHR DSNT NE-SE FEW SC DSNT S/ 8/800 4/011 53001 10014 20011 10 a.m. clear with cumulus forming and 65 miles visibility and 21 deg; dewpoint 03; wind wsw at 18 gusting 28 mph.. wind direction variable ssw to w BHO SA 1455 CLR 65 066/21/3/2416G24/972/ CU FRMG ALQDS VSBY NW 70 WND 21V27/ 8/100 58002 1 p.m. scattered cumulus with 75 miles visibility and 26 deg; dewpoint 03; wind west at 14 gusting 25 mph; six hourly max. temp. 26 deg. wind direction sw variable w. BHO SA 1755 50 SCT 75 052/26/3/2612G22/968/ WND 22V27/ 8/100 58014 10026 20012 WEATHER SUMMARY FOR WEDNESDAY MARCH 09: TEMPERATURE (DEGREES F) MAX.....21 NORMAL.....43 MIN.....06 NORMAL.....26 MEAN....14 NORMAL.....34 DEPARTURE FROM 30-YEAR NORMAL......- 20 TOTAL DEPARTURE FOR THE MONTH......- 57 [ -6.5 DAILY ] PRECIPITATION (INCHES) THROUGH THIS MORNING TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.15 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.75 DEPARTURE....+0.40 ASOS..............1.60 TOTAL PRECIPITATION FOR THE YEAR..........12.09 DEPARTURE....+1.90 ASOS.............11.26 SNOWFALL (INCHES) THROUGH THIS MORNING TOTAL SNOWFALL 24 HRS ENDING 7 A.M........ 0.0 DEPARTURE.....-0.4 TOTAL SNOWFALL FOR THE MONTH............... 9.6 DEPARTURE.... +5.4 TOTAL SNOWFALL FOR THE SEASON.............103.8 DEPARTURE....+54.2 TOTAL SNOW ON THE GROUND.................... 11 INS. PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........54 W AT 4:20 A.M. AEROVANE.........58 W AT 4:20 A.M. ASOS.............53 W AT 4:21 A.M. DAVIS............51 W AT 4:20 A.M. FASTEST MILE FOR YESTERDAY......... 43 WSW AT 4:21 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......43 WSW AT 4:21 A.M. DAVIS MAXIMUM 1-MINUTE AVERAGE......39 W AT 9:06 A.M. OUR AVERAGE WIND SPEED AND DIRECTION.. 25.9 MPH W THE ASOS AVERAGE SPEED AND DIRECTION....24.2 MPH W [ 260 deg ] THE DAVIS AVERAGE WIND SPEED AND DIR....24.9 MPH W [ 270 deg ] THE PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2005...... CALENDAR DAY DATA DATA REPORTED HERE ENDING MIDNIGHT: DATE MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 3/1 29/23/26/-6/0.53/3.6/000/00 52 MPH NNE Aero 52 MPH NNE 3/2 33/20/27/-5/T/T/264/39 42 MPH W Aero 45 MPH W 3/3 28/15/22/-10/0/0/640/94 43 MPH W Aero 43 MPH W 3/4 31/12/22/-11/0/0/561/82 40 MPH W Aero 44 MPH W 3/5 39/18/29/-4/0/0/679/99 29 MPH W 3/6 40/24/32/-1/0/0/.../.. 42 MPH SSW Aero 44 MPH SSW 3/7 47/33/40/+7/0/0/.../.. 45 MPH S Aero 50 MPH SSE 3/8 42/12/27/-7/1.20/5.7/000/00 63 MPH WNW Aero 66 MPH WNW 3/9 21/06/14/-20/0.02/0.3/663/95 54 MPH W Aero 58 MPH W 3/10 morning low temp. 11 degrees... snow on ground is 11 inches... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR MARCH 10 HIGH 69 IN 1977 LOW 02 IN 1984 PRECIP 2.00 INS. IN 1994 SNOWFALL 4.0 INS. IN 1997 PEAK GUST 80 MPH NW IN 1974 RECORDS FOR MARCH 11 HIGH 65 IN 1967 LOW 04 IN 1939,1960 PRECIP 2.11 INCHES IN 1901 SNOWFALL 6.3 INCHES IN 1934 PEAK GUST 66e MPH W IN 1980 TODAY'S REPORT BY: Robert Skilling