BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, NOVEMBER 1, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
2ND WARMEST OCTOBER ON RECORD... 
6TH CONSECUTIVE MONTH DRIER THAN 30-YEAR NORMAL
 
Temp: deg.F
Av. Max. 66.1
Av. Min. 49.5
Mean 57.8 [+6.2]
HDD 254 [-168]
Season 346 [-245] 
CDD  37 [+34]
Season 757 [+199] 
Max. temp: 86/5th
Min. temp: 30/29th
Precip: 2.66 [-1.76] 
Sunshine: 181.8 hours or 53%
Av. wind speed: 12.0 MPH [corrected]
Peak gust: 52 MPH SSW/23RD
Fastest mile: 42 MPH SSW/23RD
 
October corrected mean temperature of 56.9 ranks 2ND WARMEST ON RECORD. 
The year to date is up to a tie for 11th warmest on record, just behind 
last year's three-way tie for 7th place through October. The average max 
temp for October of 66.1 is 4th warmest, and the average min temp of 49.5
is the warmest on record for October.
 
Warmest October Mean Temp (deg F)
 
1) 58.4 in 1947
2) 56.9 in 2007
3) 56.6 in 1971
4) 56.5 in 1963
5) 55.7 in 1946
 
Warmest October Average Max Temp (deg F)
 
1) 70.1 in 1947
2) 68.5 in 1963
3) 66.4 in 1946
4) 66.1 in 2007
5) 65.5 in 1931
 
Warmest October Average Min Temp (deg F)
 
1) 49.5 in 2007
2) 49.2 in 1971
3) 49.1 in 1947
4) 48.2 in 1913
5) 47.9 in 1949
   47.9 in 1954

Corrected mean wind speed for October of 12.0 mph is 4th lowest on record.
 
October Lowest Wind Speed (mph)
 
1) 11.8 in 1997
2) 11.9 in 1994
   11.9 in 2004
4) 12.0 in 2007


Today's observations:
 
7 A.M.   
Weather: High dense cirrus overcast 
Temperature: 54F, Dew point: 50F, Wind: S at 17G22 kts 
Sea-level pressure: 30.01 inches Hg, steady
Visibility: 20 miles, thin fog/haze  
6-hour min temp: 53F
24-hour precipitation: 0.00 inches 
BHO SA 1155 E220 OVC 20 163/54/50/1817G22/001/ DENSE CI 
THN SPTS IOVC BINOVC DSNT SE-S THN FH/ 8/002 55008 10054 20053
 
10 A.M.   
Weather: High dense cirrus overcast with lower scattered altostratus/altocumulus  
Temperature: 62F, Dew point: 53F, Wind: SSW at 21G30 kts
Wind: Peak wind 32 kts S at 17 past the hour, variability SSE-SW 
Sea-level pressure: 29.97 inches Hg, falling
Visibility: 30 miles, light haze  
BHO SA 1455 150 SCT 180 SCT E200 OVC 30 150/62/53/2021G30/997/
CUFRA/CU FRMG AC/FEW ACC DENSE CI ALQDS SML BINOVC DSNT W-WNW SUN VSBL 
LGT HZ PK WND 1832/17/ WND 16V22/ 8/182 56013 
 
1 P.M.   
Weather: Scattered moderate cumulus, broken stratocumulus, overcast altocumulus,
Cumulus with dark bases, higher clouds visible  
Temperature: 65F, Dew point: 51F, Wind: SSW at 12G23 kts
Wind: Peak wind gust 29 kts SSW at 11:58 a.m.; wind gradually veering
Sea-level pressure: 29.94 inches Hg, falling
Visibility: 40 miles 
6 hour max. temp. 66F 
BHO SA 1755 40 SCT E45 BKN 150 OVC 40 139/65/51/2112G23/994/ 
MDT CU DRK BASES HIER CLDS VSBL PK WND 2029/1658/ WND GRDLY VEERING/ 
8/47/ 56011 10066 20054  
  
WEATHER SUMMARY FOR WEDNESDAY, OCTOBER 31
 
TEMPERATURE (DEGREES F)
MAX.....63    NORMAL.....55 
MIN.....45    NORMAL.....39
MEAN....54    NORMAL.....47
DEPARTURE FROM 30-YEAR NORMAL......... + 7 
TOTAL DEPARTURE FOR THE MONTH....... .+198 [+6.2 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............39 S   AT 10:20 P.M.             
                   AEROVANE.............39 S   AT 10:20 P.M. *      
                   ASOS.................39 S   AT 10:21 P.M.     
                   DAVIS................40 S   AT 10:58 P.M.      
FASTEST MILE FOR YESTERDAY..............28 S   AT 10:37 P.M. *   
MAXIMUM 2-MINUTE ASOS AVERAGE...........28 S   AT 10:38 P.M.        
MAXIMUM 2-MINUTE DAVIS AVERAGE..........28 S   AT 10:38 P.M.      
AVERAGE WIND SPEED AND DIRECTION......15.6 S 
                   ASOS...............15.6  
                   DAVIS..............13.0 S [180 deg]
* last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M... 0.00  DEPARTURE.....-0.15
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR OCTOBER............2.66  DEPARTURE.....-1.76 
                         ASOS..............2.71    
TOTAL PRECIPITATION FOR THE YEAR..........35.54  DEPARTURE.....-6.48
                         ASOS.............34.83  
 
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2007...CALENDAR DAY DATA
DATA REPORTED:
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
 
10/1  67/49/58/+1/0/592/84     18 S 
10/2  72/50/61/+5/0/323/46     20 SSE
10/3  73/61/67/+11/0/077/11    23 SSE
10/4  84/65/75/+19/0/425/61    21 SSW
10/5  86/61/74/+19/0/618/89    21 SSW 
10/6  83/62/73/+18/0/526/76    23 WSW
10/7  71/52/61/+7/0.01/110/16  29 NNE 
10/8  58/52/55/+1/0.49/000/00  21 S
10/9  59/50/55/+1/0.10/580/85  29 NNW
10/10 57/50/54/0/0.08/000/00   20 ESE #
10/11 58/55/57/+4/0.37/000/00  33 ENE TSTM late evening 
10/12 62/42/52/-1/0.18/135/20  42 W   Aero 43 MPH W 
10/13 59/37/48/-4/0/665/99     25 WNW
10/14 59/42/51/-1/0/629/94     32 W 
10/15 62/38/50/-2/0/426/64     29 WNW   
10/16 61/43/52/+1/0/650/98     25 NW 
10/17 68/41/55/+4/0/455/69     20 SW
10/18 75/57/66/+15/0/151/23    21 S
10/19 70/63/67/+16/0.60/000/00 47 SSE Aero 51 MPH SSE
10/20 70/54/62/+12/0.19/229/35 43 W   Aero 44 MPH W
10/21 73/51/62/+12/0/643/99    25 SSW 
10/22 80/58/69/+19/0/595/92    29 S 
10/23 74/58/66/+17/0.02/135/21 52 SSW  Aero 55 MPH SSW 
10/24 63/50/57/+8/0.10/000/00  24 NW
10/25 54/48/51/+2/0.01/211/33  22 NNE 
10/26 58/44/51/+3/0.01/375/59  25 E  
10/27 66/52/59/+11/0.50/000/00 43 S    Aero 44 MPH S 
10/28 55/36/46/-2/0/631/100    39 WNW  Aero 42 MPH WNW 
10/29 49/30/40/-7/0/629/100    22 WNW  
10/30 60/37/49/+2/0/619/99     25 SW
10/31 62/45/54/+7/0/480/77     39 S    Aero 39 MPH S 
 
# there is a correction of 0.01 for the 10th in daily precip;
  the daily total is changed to 0.08 from 0.09; monthly total 
  is unchanged at 2.66 ins.
 
11/1  morning low temp. 53F; normal low is now 38F
      
NEW DAILY RECORDS FOR OCTOBER 2007:
 
10/4 - RECORD HIGH TEMPERATURE 84F; PREVIOUS 83F IN 1898 and 1959.
     - EQUALED RECORD HIGH MINIMUM TEMPERATURE OF 65F; ALSO IN 1927. 
10/5 - RECORD HIGH TEMPERATURE 86F; PREVIOUS 85F IN 1922
10/6 - EQUALED RECORD HIGH TEMPERATURE 83F; ALSO IN 1990. 
10/19- EQUALED RECORD HIGH MINIMUM TEMPERATURE 63F; PREVIOUS IN 1928. 
10/23 -EQUALED RECORD HIGH MINIMUM TEMPERATURE 58F; ALSO IN 1942
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR NOVEMBER 1
HIGH 75 IN 2003
LOW 22 IN 1913,1923
PRECIP 2.93 INCHES IN 1985
SNOWFALL TRACE IN 1906,1951
PEAK GUST 78 ESE IN 1997
 
RECORDS FOR NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 0.2 IN 1906,1951
PEAK GUST 63 WSW IN 1973
 
TODAY'S REPORT PREPARED By: Robert Skilling/Mike Iacono