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Monday, October 6, 2014

October 6, 2014

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, OCTOBER…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 6, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

CHILLY OVERNIGHT SETS COLDEST READINGS SO FAR
THIS SEASON AT 42F

Yesterday’s clear skies translated into a clear
cool night last night, with the mercury tumbling
down to 42F, our coldest reading of the season
so far. Nearby at Norwood Memorial Airport, a
sub-freezing mark of 29F was reported.
Completely clear skies have been reported this morning,
with no clouds in sight during the 7:00 and 10:00 AM EST
observations, with only light haze in the distance hindering
visibility slightly.

Today’s Observations:

7 A.M.
Weather: Sky clear
Temperature: 45F; Dew Point: 36F; Wind: W at 10 kts
Sea-level pressure: 30.10 ins. Hg, rising then more quickly
Visibility: 70 miles, distant haze
6-hr max temp: 48F
6-hr min temp: 42F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 70 192/45/36/2610/010/ SKC LGT DSNT HZ ENE-SSE/
8/000 53016 10048 20042

10 A.M.
Weather: Sky clear
Temperature: 59F; Dew Point: 36F; Wind: estimated SSW at 6 kts,
Wind Speed: Light
Sea-level pressure: 30.14 ins. Hg, rising, then more slowly
Visibility: 65 miles
BHO SA 1455 CLR 65 207/59/36/E2006/014/ SKC LGT DSNT HZ WSW-NE
WND LGT/ 8/000 51015

1 P.M.
Weather: Few cumulus SSW-NW
Temperature: 65F; Dew Point: 39F; Wind: S at 9 kts
Sea-level pressure: 30.13 ins. Hg, steady, then falling
Visibility: 65 miles, light distant haze
6-hr max temp: 66F
6-hr min temp: 44F
BHO SA 1755 CLR 65 203/65/39/1809/013/ FEW CU SSW-NW LGT DSNT HZ
ALQDS/ 8/100 58004 10066 20044

WEATHER SUMMARY FOR SUNDAY, OCTOBER 5, 2014

TEMPERATURE (DEGREES F)
MAX…..60    NORMAL…..64
MIN…..45    NORMAL…..47
MEAN….53    NORMAL…..56

DEPARTURE FROM 30-YEAR NORMAL…………………….-3
TOTAL DEPARTURE FOR THE MONTH……………………-14 [-3.0 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0  DEPARTURE…………0
TOTAL COOLING UNITS FOR THE MONTH……………0  DEPARTURE………..-2
TOTAL COOLING UNITS FOR THE SEASON…………587  DEPARTURE……….-12
TOTAL COOLING UNITS LAST SEASON TO DATE…….700  DIFFERENCE……..-113

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..12  DEPARTURE………..+2
TOTAL HEATING UNITS FOR THE MONTH…………..57  DEPARTURE……….+12
TOTAL HEATING UNITS FOR THE SEASON…………158  DEPARTURE……….-30
TOTAL HEATING UNITS LAST SEASON TO DATE…….154  DIFFERENCE……….+4

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………26 W   AT 11:08 A.M.
ASOS…………………..27 W   AT 11:19 A.M.
DAVIS………………….27 WSW AT 11:07 A.M. RMY 28
FASTEST MILE FOR YESTERDAY………………..23 W   AT 11:09 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..22 W   AT 11:10 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….20 W   AT 11:11 A.M.
AVERAGE WIND SPEED AND DIRECTION………….12.1 W
ASOS………………….12.0
DAVIS…………………10.7 W (267 degrees)
* Last of several occurrences

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……….2.27  DEPARTURE……..+1.53
ASOS…………..2.28
TOTAL PRECIPITATION FOR THE YEAR……….33.86  DEPARTURE……..-5.96
ASOS………….34.08

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY GUST
RMY:  R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized

10/1 56/55/56/-1/…./000/00              33 NE  RMY 36
10/2 55/47/51/-6/…./000/00              30 NE  RMY N/A
10/3 54/46/50/-6/…./000/00              20 NE  RMY 20
10/4 63/52/58/+2/…./000/00              30 SE  RMY 32
10/5 60/45/53/-3/0.00/…/..              26 W   RMY 28

10/6 morning low temp: 42F since midnight; normal low now 47F

DAILY RECORDS FOR OCTOBER 2014:
None so far.

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR OCTOBER 6
HIGH 83F IN 1990, 2007
LOW 26F IN 1965
PRECIP 3.78 INCHES IN 1962
PEAK GUST 60e MPH S IN 1942

RECORDS FOR OCTOBER 7
HIGH 88F IN 1963 (RECORD FOR MONTH)
LOW 30F IN 1904,1986
PRECIP 1.75 INCHES IN 1972
PEAK GUST 54 W IN 2009

TODAY’S REPORT PREPARED BY: Brian Fitzgerald

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