BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, SEPTEMBER 18, 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME TODAY'S DISCUSSION...2 p.m. Heavy rainfall has been the theme today with 3.06 inches since the rain began during the wee hours of the morning as measured by our standard 8-inch rain gauge. ASOS total is 3.04 inches, so agreement between the automated and standard gages was very good. Winds have been rather gusty today with a few gusts to or over 40 mph. TODAY'S OBSERVATIONS: 8 a.m. BHO SA 1155 W3 X 1/2R+F 112/56/56/0322G30/986/ STRAFRA OCNLY DRFTG OVR SMT R+ OCNLY R PK WND 0634/1057/ 8//// 51014 6172/ 70172 10067 20056 11 a.m. BHO SA 1455 W2 X 1/2VRF 120/54/54/0224G34/988/ VSBY 1/4 V 3/4 R OCNLY R+ REUKNB30 PK WND 0338/23/ 8//// 53007 6030/ 2 p.m. BHO SA 1755 W2 X 3/4RF 120/54/54/0421G29/988/ STRAFRA OCNLY DRFTG OVR SMT R OCNLY R+ PK WND 0429/53/ 8//// 50000 6134/ 10056 20054 ALL TIMES EASTERN DAYLIGHT TIME.. WEATHER SUMMARY FOR FRIDAY, SEPTEMBER 17: TEMPERATURE (DEGREES F) MAX.....78 NORMAL.....71 HAZEN SHELTER 77.8 @ 2:50 P.M. MIN.....65 NORMAL.....53 HAZEN SHELTER 65.0 @ N/A MEAN....72 NORMAL.....62 DEPARTURE FROM 30-YEAR NORMAL.....+10 TOTAL DEPARTURE FOR THE MONTH.....+25 (+1.2 DEGREES/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........23 SSW AT 6:47 A.M. AEROVANE.........28 SSW AT 6:47 A.M. ASOS.............22 SW AT 6:48 A.M. DAVIS............22 SW AT 3:57 A.M. FASTEST MILE FOR YESTERDAY..........17 SSW AT 4:00 A.M. HIGHEST ASOS 2 MIN AV...17 SSW AT 6:34 A.M. HIGHEST DAVIS 1 MIN AV...19 SW AT N/a AVERAGE WIND SPEED AND DIRECTION.. 9.2 SSW ASOS........... 9.8 S / 190 deg. DAVIS.......... 9.8 SW / 220 deg. PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....1.72 DEPARTURE....+1.58 ASOS..............1.70 TOTAL PRECIPITATION FOR THE MONTH..........3.36 DEPARTURE....+1.05 ASOS..............3.32 TOTAL PRECIPITATION FOR THE YEAR..........36.91 DEPARTURE....+1.13 ASOS.............35.20 PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 2004......CALENDAR DAY DATA DATA REPORTED: 24 HOUR PERIODS ENDING MIDNIGHT EST DATE MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST ... SUNSHINE DATA NOT YET AVAILABLE 9/1 78/60/69/+2/0/763/97 21 MPH WNW 9/2 72/56/64/-2/0/722/92 23 MPH S 9/3 79/57/68/+2/0/743/95 25 MPH SSW 9/4 82/58/70/+4/0/553/71 29 MPH ENE Aero 30 MPH ENE 9/5 67/52/60/-5/0/513/66 25 MPH ENE 9/6 72/51/62/-3/0/720/93 18 MPH SSE LABOR DAY 9/7 80/58/69/+4/0/424/55 24 MPH SSE 9/8 74/63/69/+4/0.79/008/01 23 MPH NE 9/9 80/63/72/+8/0.75/115/15 45 MPH S Aero 51 MPH S Remnants of Frances 9/10 74/56/65/+1/T/610/80 36 MPH WNW Aero 40 MPH NW 9/11 69/55/62/-2/0/456/60 18 MPH NE 9/12 76/53/65/+2/0/719/95 18 MPH SW 9/13 76/57/67/+4/0/513/68 18 MPH NNW 9/14 64/52/58/-5/0/699/93 18 MPH SSE 9/15 69/51/60/-2/0.01/367/49 20 MPH S 9/16 70/60/65/+3/0.09/.../.. 20 MPH SSW 9/17 78/65/72/+10/0/.../.. 23 MPH SSW Aero 28 MPH SSW 9/18 HI/LO 68/54 Total Rainfall Thus Far x.xx" Sunshine for the month so far stands at 69% of possible or more than 10 points above normal... OUR DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR SEPTEMBER 18 HIGH 88F IN 1906 LOW 36F IN 1919 PRECIP 4.25 INCHES IN 1996 PEAK GUST 77e MPH WNW IN 1948 RECORDS FOR SEPTEMBER 19 HIGH 87F IN 1906,1983 LOW 37F IN 1929 PRECIP 3.69 INCHES IN 1936 PEAK GUST 48 MPH NE IN 1972 Today's report: Matt Douglas