Thursday, October 16, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, OCTOBER 16, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
EXTREMELY HUMID CONDITIONS FOR MID OCTOBER AS AN
UNSEASONABLY WARM AIR MASS CONTINUES IN PLACE OVER US
LOW TEMPERATURE OF 67F SINCE MIDNIGHT WOULD BE RECORD
A FEW LIGHT SHOWERS OVERNIGHT MORE RAIN TODAY
Very humid conditions prevail today with the dew point
reaching 68 degrees. The unseasonably warm and humid
air mass allowed our morning minimum to drop to only 66
degrees at midnight at the start of today. This reading
would very easily beat the record high minimum for
this date which is 63F in 1897 and would also come very
close to the highest minimum for any October day of 67F
set October 13, 1990.
An approaching cold front with showers ahead of it will
likely bring cooler temperatures by midnight tonight
so we don’t believe the minimum of 66 degrees will hold.
Today’s Observations:
7 A.M.
Weather: Low overcast stratus with higher altocumulus clouds
visible E-SE and the sun briefly dimly visible, thin fog in
all quadrants and a light rain shower ended at 6:15 EST.
Temperature: 67F; Dew Point: 67F; Wind: SSE at 13G21 kts
Sea-level pressure: 29.90 ins. Hg, falling slightly
Visibility: 7 miles, except NW 4 miles, N 9 miles, NE-SE
12 miles, SW 8 miles with light fog all quadrants
6-hr max temp: 68F
6-hr min temp: 67F
24-hr precip: 0.03 inch
BHO SA 1155 E5 OVC 7 124/67/67/1513G21/990/ HIER CLDS VSB E-SE
SUN ONCL DMLY VSB THN F ALQDS VSBY NW 4 N 9 NE-SE12 SW 8/
8/67/ 58007 MANUAL 6001/ ASOS 60001 MANUAL 70003 ASOS 70003
10068 20067
10 A.M.
Weather: Scattered variable to broken to overcast with
stratus fractus, broken altocumulus, overcast altocumulus
Temperature: 69F; Dew Point: 68F; Wind: SSE at 14G24 kts,
Wind: Gust to 25 kts past hour
Sea-level pressure: 29.87 ins. Hg, falling then more quickly
Visibility: 15 miles, thin fog, except NNE-ESE 12 miles,
WNW 25 miles
BHO SA 1455 8V SCT E90 BKN 100 OVC 15 114/69/68/1514G24/987/
8 SCT V BKN V OVC VSBY NNE-ESE 12 WNW 25 GST 25 KTS PST HR/
8/77/ 58010 MANUAL 6002/ ASOS 60001
1 P.M.
Weather: Overcast stratus fractus, ceiling and visibility lowering
in light rain and fog
Temperature: 69F; Dew Point: 69F; Wind: SSE at 17G26 kts,
Peak Wind: 30 kts SSE @ 12:06 PM EST
Sea-level pressure: 29.79 ins. Hg, falling, then more quickly
Visibility: 4 miles, light rain and fog and lowering
6-hr max temp: 70F
6-hr min temp: 67F
6-hr precip: 0.09 inch
BHO SA 1755 E7 OVC 4R-F 089/69/69/1517G26/979/ CIG/VSBY LWRG
PK WND 1530/06/ 8/7// 58025 MANUAL 6009/ ASOS 60006 10070 20067
WEATHER SUMMARY FOR WEDNESDAY, OCTOBER 15, 2014
TEMPERATURE (DEGREES F)
MAX…..79 NORMAL…..61
MIN…..62 NORMAL…..43
MEAN….71 NORMAL…..52
DEPARTURE FROM 30-YEAR NORMAL……………………+19
TOTAL DEPARTURE FOR THE MONTH……………………+28 [+1.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE……….-13
TOTAL HEATING UNITS FOR THE MONTH………….138 DEPARTURE……….-26
TOTAL HEATING UNITS FOR THE SEASON…………239 DEPARTURE……….-67
TOTAL HEATING UNITS LAST SEASON TO DATE…….239 DIFFERENCE……….,0
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………32 SSW AT 12:38 P.M.
ASOS…………………..36 SSW AT 12:39 P.M.
DAVIS………………….34 SSW AT 12:39 P.M. RMY 36
FASTEST MILE FOR YESTERDAY………………..28 SSW AT 12:39 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..29 SSW AT 12:40 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….27 SSW AT 12:41 P.M.
AVERAGE WIND SPEED AND DIRECTION………….16.4 S
ASOS………………….16.1
DAVIS…………………15.0 S (180 degrees)
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.03 DEPARTURE……..-0.12
ASOS…………..0.03
TOTAL PRECIPITATION FOR THE MONTH……….2.67 DEPARTURE……..+0.45
ASOS…………..2.67
TOTAL PRECIPITATION FOR THE YEAR……….34.26 DEPARTURE……..-7.04
ASOS………….34.47
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/-1/1.63/000/00 33 NE RMY 36
10/2 55/47/51/-6/0.29/000/00 30 NE RMY N/A
10/3 54/46/50/-6/0.05/000/00 20 NE RMY 20
10/4 63/52/58/+2/0.30/000/00 30 SE RMY 32
10/5 60/45/53/-3/0.00/658/95 26 W RMY 28
10/6 66/42/54/-1/0.00/669/97 25 SSE RMY N/A
10/7 72/54/63/+8/0.01/281/38 43 S RMY 49
10/8 72/53/63/+9/0.01/562/82 40 S RMY N/A
10/9 64/48/56/+2/0.00/648/95 35 W RMY 39
10/10 63/43/53/-1/0.00/489/72 23 W RMY N/A
10/11 50/43/47/-6/0.35/…/.. 15 N RMY N/A
10/12 60/40/50/-3/0.00/…/.. 20 NW RMY N/A
10/13 61/45/53/+0/0.00/…/.. 23 S RMY 25
10/14 75/58/67/+15/0.00/…/.. 29 S RMY 31
10/15 79/62/71/+19/0.02/…/.. 32 SSW RMY 36
10/16 morning low temp: 66F since midnight; normal low now 43F
DAILY RECORDS FOR OCTOBER 2014:
10/1 – A NEW RECORD DAILY PRECIPITATION OF 1.63 INCHES;
surpasses the previous record of 1.44 ins. in 1984
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR OCTOBER 16
HIGH 86F IN 1897
LOW 28F IN 1886
PRECIP 2.82 INCHES IN 1974
SNOWFALL TRACE IN 2009
PEAK GUST 68e MPH SSE IN 1954 (HURRICANE HAZEL)
RECORDS FOR OCTOBER 17
HIGH 86F IN 1947
LOW 25F IN 1886
PRECIP 1.87 INCHES IN 1989
SNOWFALL TRACE IN 1970
PEAK GUST 55 MPH NE IN 1964
TODAY’S REPORT PREPARED BY: Robert Skilling
