Saturday, September 27, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, SEPTEMBER 27, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
MODERATE DROUGHT NOW IN PLACE AT BLUE HILL,
SEPTEMBER APPEARS LIKELY TO ENTER THE RECORD BOOK
Blue Hill, along with much of South Shore Massachusetts,
Rhode Island and coastal Connecticut are now in moderate
drought, according to the National Drought Mitigation Center,
whose Drought Monitor is available through their website.
Completely clear skies were observed through this morning
with no clouds visible in any direction at either the
7:00 AM or 10:00 AM EST observations. Hazy conditions however,
have kept visibility to less than 60 miles throughout
the day.
Extremely dry soil conditions have led to the browning of
many trees on top of Great Blue, along with dusty soil.
Thankfully light winds today have limited any transport
of dust.
HERE AT BLUE HILL…
Only 0.26 inches of precipitation has been recorded for
the month of September with only a few days left in the month.
The driest September on record of 0.45 inches, back in 1914, may
be in jeopardy depending on what rain may fall through next
Tuesday. The monthly precipitation deficit is now down to -3.21
inches, along with an annual deficit that is now -7.05 inches.
Like August, September has been another very sunny month with
the percentage of possible sunshine up close to 70%.
Today’s Observations:
7 A.M.
Weather: Sky Clear
Temperature: 62F; Dew Point: 48F; Wind: NNW at 9 kts,
Sea-level pressure: 30.19 ins. Hg, rising steadily
Visibility: 60 miles, distant haze
6-hr max temp: 62F
6-hr min temp: 58F
24-hr precip: 0.00
BHO SA 1155 CLR 60 222/62/48/3309/019/
SKC LGT DSNT HZ ALQDS/ 8/000 52007 10062 20058
10 A.M.
Weather: Sky Clear
Temperature: 76F; Dew Point: 55F; Wind: estimated WNW at 4 kts,
Sea-level pressure: 30.21 ins. Hg, rising, then steady
Visibility: 45 miles, distant haze
BHO SA 1455 CLR 45 230/76/55/E3004/021/
SKC LGT DSNT HZ ALQDS/ 8/000 51008
1 P.M.
Weather: Sky Clear
Temperature: 82F; Dew Point: 53F; Wind: estimated W at 4 kts,
Wind Speed and Direction: Light and Variable
Sea-level pressure: 30.18 ins. Hg, steady, then falling
Visibility: 60 miles, distant haze
6-hr max temp: 82F
6-hr min temp: 61F
6-hr precip: none
BHO SA 1755 CLR 60 219/82/53/E2604/018/
SKC LGT DSNT HZ ALWDS WND LGT AND VRB/ 8/000 58011 10082 20061
WEATHER SUMMARY FOR FRIDAY, SEPTEMBER 26, 2014
TEMPERATURE (DEGREES F)
MAX…..73 NORMAL…..68
MIN…..52 NORMAL…..51
MEAN….63 NORMAL…..59
DEPARTURE FROM 30-YEAR NORMAL…………………….+4
TOTAL DEPARTURE FOR THE MONTH……………………+31 [+1.0 DEGREE/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..0 DEPARTURE………..-1
TOTAL COOLING UNITS FOR THE MONTH………….92 DEPARTURE……….+35
TOTAL COOLING UNITS FOR THE SEASON………..571 DEPARTURE……….-23
TOTAL COOLING UNITS LAST SEASON TO DATE……696 DIFFERENCE……..-125
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………2 DEPARTURE……….-5
TOTAL HEATING UNITS FOR THE MONTH…………..89 DEPARTURE……….+7
TOTAL HEATING UNITS FOR THE SEASON………….91 DEPARTURE………-21
TOTAL HEATING UNITS LAST SEASON TO DATE…….122 DIFFERENCE………-31
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………19 NNE AT 12:18 P.M.*
ASOS…………………..19 NE AT 12:18 P.M.
DAVIS………………….18 NNE AT 11:32 A.M. RMY 19
FASTEST MILE FOR YESTERDAY………………..14 NNE AT 11:26 A.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE……………..14 NE AT 11:32 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….13 NNE AT 6:26 A.M.
AVERAGE WIND SPEED AND DIRECTION………….7.7 NNE
ASOS………………….7.6
DAVIS…………………7.0 NNE (034 degrees)
* 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 THE MONTH……….0.26 DEPARTURE……….-3.21
ASOS…………..0.23
TOTAL PRECIPITATION FOR THE YEAR……….31.44 DEPARTURE……….-7.05
ASOS………….31.66
PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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
9/1 88/69/79/+11/0.00/710/90 16 W RMY 19
9/2 91/70/81/+13/0.00/495/63 24 S RMY 27 TSTM
9/3 83/67/75/+8/0.00/681/87 24 NW RMY 27
9/4 86/61/74/+7/0.00/758/97 20 SW RMY 22
9/5 89/66/78/+11/0.00/731/94 25 SSW RMY 29
9/6 90/67/79/+12/T/481/62 33 SSW RMY 36 TSTM
9/7 77/62/70/+4/0.03/687/89 26 NW RMY N/A
9/8 74/57/66/+0/0.00/601/78 25 ENE RMY 25
9/9 71/59/65/-1/0.00/384/50 23 ENE RMY 23
9/10 71/58/65/0/0.00/329/43 20 NE RMY 20
9/11 78/60/69/+4/0.00/099/13 31 SW RMY 35
9/12 72/51/62/-3/0.00/735/97 25 NNW RMY 22
9/13 67/50/59/-5/0.17/159/21 23 E RMY 24
9/14 66/47/57/-7/0.00/685/91 25 NW RMY 24
9/15 67/43/55/-9/0.00/698/93 17 W RMY 18
9/16 66/52/59/-4/T/030/04 16 SW RMY 16
9/17 72/50/61/-2/0.00/722/98 16 NW RMY 17
9/18 74/52/63/+1/0.00/578/78 21 N RMY 23
9/19 56/43/50/-12/0.00/702/95 21 NE RMY 23
9/20 71/45/58/-4/…./515/70 29 S RMY 30
9/21 80/61/71/+10/0.06/176/24 26 SSE RMY 27
9/22 72/48/60/-1/0.00/701/96 33 W RMY 35
9/23 70/44/57/-3/0.00/712/98 20 W RMY 20
9/24 69/52/61/+1/0.00/543/75 21 NE RMY 21
9/25 59/52/56/-4/0.00/000/00 20 NE RMY 19
9/26 73/52/63/+4/0.00/…/.. 19 NNE RMY 19
9/27 morning low temp: 58F since midnight; normal low now 50F
DAILY RECORDS FOR SEPTEMBER 2014:
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR SEPTEMBER 27
HIGH 84F IN 1998
LOW 32F IN 1947
PRECIP 2.26 INCHES IN 1962
PEAK GUST 100 MPH SSE IN 1985 (HURRICANE GLORIA)
RECORDS FOR SEPTEMBER 28
HIGH 82F IN 1959
LOW 33F IN 1897,1947
PRECIP 2.46 INCHES IN 2004
PEAK GUST 69 MPH NE IN 1962
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
