BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, OCTOBER 23, 2007 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
STRONG SOUTH WINDS GUSTING NEAR 50 MPH
WARM LATE OCTOBER TEMPERATURES CONTINUE
 
Updating just after 2:30 P.M EDT.....
ASOS gust 52 MPH @ 2:32 p.m.; 2-minute sustained 38 MPH
Aerovane gust 53 MPH

The strongest winds of the the month to date 
have been averaging about 25 MPH since 8 A.M. EDT 
Peak gusts have reached 47 MPH on the ASOS system 
and 48 MPH on our Aerovane recorder.  Gusts
to 48 MPH have also been recorded on the Maximum, 
Inc. instruments and 51 MPH on Davis. The highest
sustained speed is 35 MPH S recorded on ASOS. 
 
Unseasonably warm late October weather continues 
today with the morning minimum temperature equaling
a high minimum record set on this date in 1942 if 
it hold through midnight tonight.  
Yesterday's high of 80 degrees was 22 degrees above
the normal but not a record.  The month is currently
averaging 7 degrees above the 30-year average.
 
Below are some warm October numbers:
 
Average max temp for Oct 1-22 ranks 5th warmest on record
and average min temp ranks warmest on record.  The 86 on 
10/5 ties for third warmest temp in October and warmest
since 1963. The min of 65 on 10/4 ties for third warmest 
min temp in October.
 
October 1-22 Warmest Average Max Temp (deg F)
 
1) 71.9 in 1947
2) 69.5 in 1963
3) 69.4 in 1928
4) 69.3 in 1990
5) 68.5 in 2007
6) 67.7 in 1954
 
October 1-22 Warmest Average Min Temp (deg F)
 
1) 51.5 in 2007
2) 51.3 in 1954
3) 50.9 in 1990
4) 50.2 in 1947
 

Today's observations:
 
7 A.M.   
Weather: Low overcast variable to broken stratocumulus, 
higher altocumulus visible  
Temperature: 63F, Dew point: 61F, Wind: S at 18G24 kts 
Sea-level pressure: 29.96 inches Hg, falling
Visibility: 10 miles, NE 15 miles, thin fog 
6-hour min temp: 58F
24-hour precipitation: 0.00  
BHO SA 1155 E20 OVC 10 145/63/61/1818G24/996/ OVC V BKN BINOVC 
HIER AC CLDS VSBL THN F ALQDS/ 8/530 56013 10063 20058
 
10 A.M.   
Weather: Low overcast, cumulus fractus, stratocumulus, small break 
in overcast 
Temperature: 67F, Dew point: 62F, Wind: S at 19G28 kts
Wind: Peak gust 35 kts S at 10 past the hour 
Sea-level pressure: 29.91 inches Hg, falling
Visibility: 20 miles, hazy   
BHO SA 1455 20 SCT E27 OVC 20 130/67/62/1919G28/991/ CIG RGD 
SML BINOVC HAZY PK WND 1835/10/ 8/8// 56015
 
1 P.M. 
Weather: Scattered stratocumulus clouds, high dense cirrus and thin 
cirrus overcast 
Temperature: 73F, Dew point: 61F, Wind: S at 23G36 kts 
Wind: Peak wind gust 38 kts S at 16 past the hour
Sea-level pressure: 29.80 inches Hg, falling
Visibility: 25 miles, hazy  
BHO SA 1755 30 SCT 150 SCT 200 SCT 250 –OVC 25 092/73/61/1923G36/980/
FEW ACSL PTCHS DENS CI/CCSL HZY PK WND 1738/16/ 8/542 56038 10074 20063
 
WEATHER SUMMARY FOR MONDAY, OCTOBER 22
 
TEMPERATURE (DEGREES F)
MAX.....80    NORMAL.....58 
MIN.....58    NORMAL.....41
MEAN....69    NORMAL.....50
DEPARTURE FROM 30-YEAR NORMAL.........+19 
TOTAL DEPARTURE FOR THE MONTH........+157 [+6.9 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............29 S  AT  7:06 P.M.         
                   AEROVANE.............28 S  AT  7:06 P.M.  
                   ASOS.................28 S  AT  7:06 P.M.  
                   DAVIS................32 S  AT  7:06 P.M.  
FASTEST MILE FOR YESTERDAY..............22 S  AT  7:16 P.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE...........22 S  AT  7:16 P.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE..........24 S  AT  7:11 P.M.  
AVERAGE WIND SPEED AND DIRECTION......14.8 S
                   ASOS...............14.5 
                   DAVIS..............15.5 SSW [200 deg]
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.....-0.14
                         ASOS..............0.00 
TOTAL PRECIPITATION FOR THE MONTH..........2.02  DEPARTURE.....-1.06  
                         ASOS..............2.04    
TOTAL PRECIPITATION FOR THE YEAR..........34.90  DEPARTURE.....-5.78
                         ASOS.............34.16  
 
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 57/50/54/0/0.09/000/00   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/+4/0/462/70     20 SW
10/18 75/57/66/+15/0/.../..    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/.../.. 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 morning low temp. 58F; the normal low is now 41F
 
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.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR OCTOBER 23
HIGH 82 IN 1947
LOW 24 IN 1969
PRECIP 2.18 INCHES IN 1956
SNOWFALL 3.0 INCHES IN 1891
PEAK GUST 78e MPH NW IN 1941
 
RECORDS FOR OCTOBER 24
HIGH 79 IN 1963
LOW 22 IN 1969
PRECIP 2.96 INCHES IN 1890
SNOWFALL 1.8 INCHES IN 1960
PEAK GUST 70 MPH SE IN 1959
 
TODAY'S REPORT PREPARED By: Robert Skilling/Mike Iacono