BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA WEDNESDAY JULY 31, 2002 DAILY DISCUSSION... 7/31/2002.. 2 P.M. The minimum temperature for yesterday, 7/30, equaled the record high minimum for the date set in 1949 at 74 degrees... It's another hot day today but with dewpoint dropping to 60 degrees by early this afternoon as the temperature surged to 90 degrees again for the 2nd day in a row and for the 7TH day this month. OBSERVATIONS FOR TODAY.....7/31/02 7/31/2002 WED BHO SA 1155 CLR 30 119/73/64/3009/988/ FEW DSNT CI SE-S THN K LYR ALNG HRZN ALQDS HAZY/ 8/001/ 51015 10072 20069 BHO SA 1455 CLR 35 121/85/66/3106/989 FEW CU FRMG WNW-NW AND SSE HAZY/ 8/100/ 51002 BHO SA 1755 50 SCT 40 106/90/60/3008/987/ FEW MDT CU LGT HAZE VSBY WNW 45 WND 27V36/ 8/200/ 56015 10090 20073 THE DATA RECORDED FOR MONDAY JULY 30TH... TEMPERATURES....CALENDAR DAY MIDNIGHT TO MIDNIGHT.... EASTERN STANDARD TIME... MAX : 90 MIN: 74**// ASOS MAX: 90 ASOS MIN: 74** NORMAL HIGH AND LOW: 81/63 MEAN 82 [+ 10] TOTAL DEP. FOR JULY IS + 19 DEG. AND +0.3 DEG. FOR EACH DAY (near normal) **EQUALS RECORD HIGH MINIMUM FOR DATE SET IN 1949 PRECIPITATION....ON 07/31 AS OF 8 A.M. 24 HRS ENDING 8 A.M. 0.00 INS. ASOS......................0.00 INS. JULY TOTAL................3.17 INS. DEP. FRM NORMAL TO DATE..-0.45 INS. JULY ASOS TOTAL...........N/A PRECIP. TOTAL YEAR 2002: 27.79 INS. DEPARTURE FROM NORMAL....-1.50 INS. ASOS TOTAL FOR 2002: N/A WIND DATA...MONDAY JULY 30, 2002 PEAK GUST ASOS: 26 MPH WNW AT 2:40 P.M EDT PEAK GUST 420C: 28 MPH W AT 2:13 P.M. EDT PEAK GUST AERO: 28 MPH WNW AT 1:09 P.M. EDT JULY 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA.... BELOW IS ORDER OF DATA REPORTED.... MAX/MIN/MEAN/DEP/PRECIP/SUNSHINE/ OFFICIAL 420C WIND GUST Aero = Aerovane recording wind system gust when significantly higher ... data as yet not available TSTM = thunderstorm day 7/1 88/63/76/+7/0/649/71/ 29 W 7/2 91/71/81/+11/0/566/62/ 25 W 7/3 95/76/86/+16/0/821/90/ 20 WNW *** 7/4 96/74/85/+15/0/811/89/ 24 W 7/5 80/63/72/+2/0/865/95/ 36 WNW 7/6 81/59/70/0/0.02/619/68/ 30 N 7/7 74/63/69/-1/0/327/36/ 22 W 7/8 89/64/77/+6/0/744/82/ 27 SW 7/9 90/65/78/+7/0.73/299/33/ 28 NW/ TSTM 7/10 75/57/66/-5/0/833/92/ 30 NW/ 7/11 71/51/61/-11/0/877/97/ 29 NW 7/12 79/55/67/-5/0/857/95/ 21 SW 7/13 84/60/72/+1/0/730/81/ 28 SW 7/14 85/63/74/+2/0/621/69/ 23 S 7/15 86/60/73/+1/1.11/548/61/ 71 WNW/SEVERE TSTM *** 7/16 76/59/68/-4/0/664/74/ 29 NW 7/17 83/55/69/-3/0/832/93/ 23 WSW 7/18 89/68/79/+7/0.01/572/64/ 25 W/ TSTM 7/19 74/61/68/-4/0.26/071/08/ 21 E/ TSTM 7/20 71/59/65/-7/0.01/258/29/ 23 NE 7/21 81/58/70/-2/0/685/77/ 27 S 7/22 81/62/72/0/0/692/78/ 33 SSW 7/23 93/68/81/+9/0.83/584/66/ 46 NW/TSTM 7/24 68/57/63/-9/0.02/618/70/ 33 NNE 7/25 72/55/64/-8/0/872/99/ 21 ENE 7/26 70/55/63/-9/0/650/74/ 28 ENE 7/27 71/58/65/-7/0.02/008/01/ 17 SSW 7/28 76/62/69/-3/0.17/061/07/ 24 S/ TSTM 7/29 88/69/79/+8/0/629/72/ 27 W 7/30 90/74/82/+10/0/.../../ 28 WNW 7/31 MORNING LOW 69 *** 7/3 new record high min. temp. of 76; previous record was 75 degrees in 1911. *** 7/15 new record peak wind gust of 71 WNW; previous record was 60e SSW in 1945; A trace of hail RECORDS FOR JULY 31 HIGH 95 IN 1917 LOW 50 IN 1895,1918 PRECIP 1.34 IN 1892 PEAK GUST 43 SW IN 1971 RECORDS FOR AUGUST 1 HIGH 97 IN 1917 LOW 49 IN 1891 PRECIP 3.61 IN 1927 PEAK GUST 41 NNW IN 1985 RECORDS FOR AUGUST 2 HIGH 101 IN 1975 LOW 50 IN 1929,1947 PRECIP 1.59 IN 1946 PEAK GUST 45e NW IN 1946 RECORDS FOR AUGUST 3 HIGH 96 IN 1930 LOW 50 IN 1976 PRECIP 1.45 IN 1979 PEAK GUST 41 NE IN 1964 e = estimated Robert Skilling/Andrew Hoell