BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SUNDAY, JULY 31, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] Today's observations: 7 A.M. EST Weather: Overcast stratocumulus with a few breaks Temperature: 65F, Dew point: 62F, Wind: NE at 14 kt Sea-level pressure: 30.30 inches Hg, rising Visibility: 12 miles, hazy BHO SA 1155 E45 OVC 12 260/65/62/0414G18/030/ FEW BINOVC ALQDS HAZY/ 8/4// 53008 10065 20062 10 A.M. EST Weather: Scattered stratocumulus, overcast altocumulus with breaks Temperature: 66F, Dew point: 61F, Wind: NNE at 8 kt Sea-level pressure: 30.30 inches Hg, rising Visibility: 15 miles BHO SA 1455 20 SCT 100 OVC 15 260/66/61/0208/030/ FEW BINOVC DSNT SW/ 8/47/ 58000 WEATHER SUMMARY FOR SATURDAY, JULY 30 TEMPERATURE (DEGREES F) MAX.....78 NORMAL.....81 ASOS.....78 AT 4:20 P.M. MIN.....63 NORMAL.....63 ASOS.....63 AT MIDNIGHT P.M. MEAN....71 NORMAL.....72 DEPARTURE FROM 30-YEAR NORMAL......-1 TOTAL DEPARTURE FOR THE MONTH.....+16 (+0.3 DEGREE/DAY) PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY.........16 NE AT 11:43 A.M. AEROVANE..........19 WNW AT 4:37 A.M. ASOS..............16 NE AT 12:53 P.M. FASTEST MILE FOR YESTERDAY...........14 WNW AT 4:38 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE........14 WNW AT 4:38 A.M. AVERAGE WIND SPEED AND DIRECTION....8.4 NE ASOS.............8.8 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE....-0.12 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........2.72 DEPARTURE....-0.90 ASOS..............2.72 TOTAL PRECIPITATION FOR THE YEAR..........33.53 DEPARTURE....+4.39 ASOS.............32.40* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. PRELIMINARY CLIMATE SUMMARY FOR JULY 2005......CALENDAR DAY DATA DATA REPORTED: 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 7/1 75/60/68/-2/0.02/110/12 20 SSW (MPH) 7/2 80/62/71/+1/0/776/85 24 W 7/3 77/59/68/-2/0/885/97 18 ENE 7/4 81/58/70/0/0/701/77 22 SSE 7/5 86/60/73/+2/0/783/86 27 S 7/6 71/57/64/-7/1.43/000/00 35 NNE Aero 38 MPH NNE 7/7 62/56/59/-12/T/000/00 30 NE 7/8 59/53/56/-15/1.02/000/00 39 NNE 7/9 76/54/65/-6/0.09/335/37 35 W 7/10 86/62/74/+3/0/787/77 32 WNW 7/11 88/66/77/+5/0/822/91 30 NW 7/12 76/60/68/-4/0/849/94 21 NE 7/13 77/59/68/-4/0/649/72 27 S 7/14 84/64/74/+2/0/0/648/72 27 SW 7/15 82/67/75/+3/0/681/76 21 NE 7/16 86/66/76/+4/0/600/67 25 S 7/17 82/67/75/+3/0/0/072/08 27 SSE 7/18 83/72/78/+6/0.15/142/16 23 S 7/19 91/72*/82/+10/0.01/508/57 25 W TSTM 7/20 88/70/79/+7/0/863/97 23 W 7/21 86/68/77/+5/0/629/70 17 WNW 7/22 91/68/80/+8/T/807/91 28 NNW TSTM 7/23 82/64/73/+1/0/865/99 28 WNW 7/24 81/60/71/-2/0/856/98 24 NW 7/25 81/65/73/0/0/370/42 38 S Aero 42 MPH S 7/26 93/69/81/+9/0/.../.. 27 S 7/27 94/67/81/+9/T/.../.. 33 S 7/28 72/60/66/-6/0/.../.. 24 NE 7/29 81/60/71/-1/0/.../.. 29 WSW 7/30 78/63/71/-1/0/.../.. 16 NE DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): 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 RECORDS FOR AUGUST 1 HIGH 97F IN 1917 LOW 49F IN 1891 PRECIP 3.61 INCHES IN 1927 PEAK GUST 41 MPH NNW IN 1985 TODAY'S REPORT BY: Andrew Hoell