Wednesday, October 15, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, OCTOBER 15, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
HUMIDITY CONTINUES AS WINDS AND WARMTH STAY
STEADY FROM THE SOUTH
While yesterday’s maximum of 75F and average temperature
of 67F were both well above the daily norm (61F daily max,
43 daily average), the daily record maximum of 79F, set in 2000,
was not in jeopardy of being broken. Today’s warmth appears set
to continue with an overnight low of just 62F, which is above
our daily average maximum.
Light fog and ragged and thin cumulus fractus were present at
level with the observatory this morning, limiting visibility
to 15 miles in most directions although sky cover above that was
mostly clear. Barometric pressure continues to drop slowly
as well, likely bottoming out in the next couple of days.
By the 1:00 PM EST observation a maximum of 79F was reached,
just 4 degrees below today’s daily record maximum of 83F,
set in 1897.
Today’s Observations:
7 A.M.
Weather: Scattered cirrus, few cumulus fractus drifting
over the summit, few altocumulus lenticularis distant SE-N
Temperature: 65F; Dew Point: 63F; Wind: S at 11 kts
Sea-level pressure: 30.14 ins. Hg, about the same
Visibility: 15 miles, except 20 miles SE, obscured by light fog
6-hr max temp: 65F
6-hr min temp: 63F
24-hr precip: 0.00 inches
BHO SA 1155 250 SCT 15 206/65/63/1811/014/
VSBY SE 20 MI FEW CUFRA DRFTNG OVR SMT FEW ACSL DSNT SE-N
LGT FG ALQDS/ 8/744 53000 10065 20063
10 A.M.
Weather: Scattered cumulus, scattered stratocumulus,
scattered cirrus
Temperature: 76F; Dew Point: 65F; Wind: SSW at 16G22 kts,
Peak Wind: 25 kts SSW @ 9:37 AM EST
Sea-level pressure: 30.13 ins. Hg, steady, then falling
Visibility: 35 miles, except 20 miles WSW-N, light distant fog
in all directions
BHO SA 1455 20 SCT 28 SCT 250 SCT 35 202/76/65/2016G22/013/
VSBY WSW-N 20 MI LGT DSNT FG ALQDS PK WND 2025/37/ 8/802 58004
1 P.M.
Weather: Scattered stratocumulus, scattered cirrus,
few cumulus in all directions
Temperature: 79F; Dew Point: 63F; Wind: S at 18G25 kts,
Peak Wind: 28 kts SSW @ 12:38 PM EST
Sea-level pressure: 30.07 ins. Hg, falling, then more quickly
Visibility: 35 miles, hazy
6-hr max temp: 79F
6-hr min temp: 65F
6-hr precip: 0.00 inches
BHO SA 1755 60 SCT 250 SCT 35 182/79/63/1818G25/007/
FEW CU ALQDS HAZY ALQDS PK WND 2028/38/ 8/804 58020 10079 20065
WEATHER SUMMARY FOR TUESDAY, OCTOBER 14, 2014
TEMPERATURE (DEGREES F)
MAX…..75 NORMAL…..61
MIN…..58 NORMAL…..43
MEAN….67 NORMAL…..52
DEPARTURE FROM 30-YEAR NORMAL……………………+15
TOTAL DEPARTURE FOR THE MONTH…………………….+9 [+0.4 DEGREE/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE……….-13
TOTAL HEATING UNITS FOR THE MONTH………….138 DEPARTURE……….-13
TOTAL HEATING UNITS FOR THE SEASON…………239 DEPARTURE……….-54
TOTAL HEATING UNITS LAST SEASON TO DATE…….232 DIFFERENCE……….+7
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 S AT 4:17 P.M.
ASOS…………………..31 S AT 4:16 P.M.
DAVIS………………….29 SSW AT 1:49 P.M. RMY 31
FASTEST MILE FOR YESTERDAY………………..24 S AT 4:19 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..24 S AT 4:20 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….23 S AT 4:21 P.M.
AVERAGE WIND SPEED AND DIRECTION………….16.0 S
ASOS………………….16.3
DAVIS…………………14.6 SSW (197 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……….2.64 DEPARTURE……..+0.57
ASOS…………..2.64
TOTAL PRECIPITATION FOR THE YEAR……….34.23 DEPARTURE……..-6.92
ASOS………….34.44
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 morning low temp: 62F 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 15
HIGH 83F IN 1897
LOW 29F IN 1887,1937
PRECIP 4.58 INCHES IN 2005
SNOWFALL TRACE IN 1961,1972
PEAK GUST 69 MPH W IN 2003
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)
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
