BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY CLIMATE SUMMARY FRIDAY, JULY 30, 2004 ALL TIMES ARE IN EASTERN DAYLIGHT TIME [unless otherwise noted] TODAY'S DISCUSSION.... TEMPERATURES FINALLY RETURN TO NORMAL, SET TO GO ABOVE NORMAL THE NEXT COUPLE OF DAYS... The average temperature for yesterday was 72 degrees, exactly normal per the 30 year normal for the period 1971-2000, however the month is still running about 2.5 degrees cooler than normal with a total departure of -66 degrees. Today and tomorrow promises to average a bit above normal, but it won't be nearly enough to erase the below normal theme for the month of July. TODAY'S MANUAL OBSERVATIONS.... 7/30/2004 FRI 8 A.M. BHO SA 1155 E180 BKN 250 -OVC 10 214/71/64/2810/016/ FEW CC SW-NW WND LGT HAZY/ 8/061 51007 10071 20065 11 A.M. BHO SA 1455 E40 BKN 180 BKN 250 -OVC 15 217/80/65/2310/017/ FEW MDT CU SW-NW WND LGT HAZY/ 8/261 50003 WEATHER SUMMARY FOR THURSDAY JULY 29: TEMPERATURE (DEGREES F) MAX.....81 NORMAL.....82 HAZEN SHELTER: 81.2 @ 4:37 p.m. MIN.....62 NORMAL.....63 HAZEN SHELTER: 61.6 @ 3:30 a.m. MEAN....72 NORMAL.....72 DEPARTURE FROM 30-YEAR NORMAL......... 0 TOTAL DEPARTURE FOR THE MONTH.........-66 JULY IS AVERAGING 2.6 DEGREES COOLER THAN NORMAL PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........17 SW AT 11:16 p.m. EST AEROVANE..........21 SW AT 11:16 p.m. EST ASOS..............16 SW AT 11:39 p.m. EST DAVIS.............16 S AT 11:16 p.m. EST ASOS 2-MINUTE.....14 SW AT 11:23 p.m. EST FASTEST MILE......13 SW AT 11:20 p.m. EST OUR AVERAGE....... 5.0 MPH SSW ASOS AVERAGE...... 5.6 MPH SSW [200 deg.] DAVIS AVERAGE......4.9 MPH SW [220 deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EDT) TOTAL PRECIPITATION 24 HRS ENDING 8 A.M....0.00 DEPARTURE....-0.12 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........4.86 DEPARTURE....+1.36 ASOS..............4.92 ** TOTAL PRECIPITATION FOR THE YEAR..........27.73 DEPARTURE....-1.44 ASOS.............26.16 ** new ASOS weighing rain gage in use all this month... PRELIMINARY CLIMATE SUMMARY FOR JULY 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 AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 7/1 82/62//72/+2/0.06/T/507/55 29 MPH S TSTM trace/sml hail 7/2 83/59/71/+1/0.93/T/575/63 45 MPH W TSTM trace of hail * 7/3 80/59/70/0/0/892/98 21 MPH NNW 7/4 81/59/70/0/0/817/90 23 MPH SSE 7/5 69/63/66/-5/1.29/000/00 33 MPH S 7/6 79/65/72/+1/T/367/40 22 MPH NW 7/7 78/63/71/0/0/690/76 23 MPH SSE 7/8 75/62/69/-2/0.01/045/05/ 24 MPH S 7/9 75/62/69/-2/0/534/59 25 MPH S 7/10 80/59/70/-1/0/842/93 21 MPH NW 7/11 74/60/67/-5/0/713/79 20 MPH N 7/12 76/59/68/-4/0/189/21 24 MPH S 7/13 64/60/62/-10/0.27/000/00 28 MPH ENE the precip. has been corrected... 7/14 63/59/61/-11/0.51/000/00 27 MPH NNE the precip. has been corrected... 7/15 77/60/69/-3/0/000/00 29 MPH S AERO 33 MPH S 7/16 79/62/71/-1/0/395/44 30 MPH SW AERO 33 MPH SW 7/17 84/63/74/+2/0/600/67 23 MPH WSW 7/18 82/66/74/+2/T/751/84 22 MPH ESE 7/19 72/64/68/-4/0.13/9/01 22 MPH NNE 7/20 84/67/76/+4/0/587/66 22 MPH WSW 7/21 84/66/75/+3/0/728/82 16 MPH SE AERO 20 MPH SE 7/22 86/67/77/+5/0/700/79 24 MPH SSW 7/23 83/67/75/+3/0/389/44 28 MPH S 7/24 72/58/65/-8/1.45/000/00 30 MPH N AERO 34 MPH N 7/25 70/58/64/-9/T/326/37 21 MPH ENE [daily departure corrected ] 7/26 73/57/65/-7/0/615/70 21 MPH E 7/27 72/60/66/-6/0.05/254/29 18 MPH ENE 7/28 57/64/61/-11/0.16/000/00 25 MPH NNE 7/29 81/62/72/0/0/.../.. 17 MPH SW 7/30 Morning low 65 degrees... THERE ARE NO NEW DAILY TEMPERATURE, PRECIP. OR WIND RECORDS THIS MONTH TO DATE.... VERY HEAVY RAINFALL EVENT ON JULY 2ND..... 7/2.. * short period rainfall 0.41 in 3 mins.; 0.50 in 5 mins.; 0.80 in 10 mins. 0.86 in 15 mins.... DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JULY 30 HIGH 99F IN 1949 LOW 51F IN 1956 PRECIP 1.84 INCHES IN 1976 PEAK GUST 70e MPH SW 1944 RECORDS FOR JULY 31 HIGH 95F IN 1917 LOW 50F IN 1895,1918 PRECIP 1.34 INCHES IN 1892 PEAK GUST 43e MPH WNW IN 1953, 43 SW IN 1971 TODAY'S REPORT BY: Matt Douglas