Monday, September 1, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, SEPTEMBER 1, 2014 LABOR DAY
ALL TIMES ARE IN EASTERN STANDARD TIME

HEAT AND HUMIDITY MARK THE START OF SEPTEMBER,
WHILE AUGUST FINISHES WITH 0.07 MORE INCHES
OF RAIN OVERNIGHT

Showers, thunderstorms, and even a confirmed EF0
tornado in Worcester brought August to a close, with
0.07 inches collected in our standard precipitation
gauge overnight.

Please stay tuned for preliminary monthly statistics
in tomorrow’s report that will feature notes on an
abnormally dry, cool and sunny August.

Today’s Observations:

7 A.M.
Weather: Partially obscuring fog, broken altocumulus,
sun dimly visible through fog
Temperature: 71F; Dew Point: 70F; Wind: estimated SW at 6 kts,
Wind Speed: Light
Sea-level pressure: 30.01 ins. Hg, increasing, then decreasing
Visibility: 1/2 of a mile, 10 miles NE-ENE, partial fog
6-hr max temp: 71F
6-hr min temp: 69F
24-hr precip: 0.07
BHO SA 1155 -X 150 BKN 1/2F 162/71/70/E2306/001/ VSBY NE-ENE 10 MI
SUN DMLY VSBL WND LGT/ 8//30 50008 ASOS 70006 MANUAL 70007 10071 20069

10 A.M.
Weather: Few cumulus in all directions, few altocumulus
lenticularis distant NE-ENE, scattered cirrus fibratus
Temperature: 82F; Dew Point: 67F; Wind: estimated WNW at 3 kts,
Wind Speed and Direction: Light and Variable
Sea-level pressure: 30.00 ins. Hg, falling, then more quickly
Visibility: 30 miles, hazy in all directions
BHO SA 1455 250 SCT 30 158/82/67/E2903/000/ FEW CU ALQDS FEW ACSL
DSNT NE-ENE HAZY ALQDS WND LGT AND VRB/ 8/141 58004

1 P.M.
Weather: Broken moderate cumulus, broken cirrus fibratus,
towering cumulus SW
Temperature: 87F; Dew Point: 67F; Wind: SW at 9 kts,
Wind Directions: SSW varying WSW
Sea-level pressure: 29.96 ins. Hg, falling, then more slowly
Visibility: 35 miles, hazy in all directions
6-hr max. temp: 88F
6-hr min. temp: 71F
BHO SA 1755 E34 BKN 250 BKN 35 147/87/67/2309/996/ TCU SW MDT CU
ALQDS HAZY ALQDS WND 20V25/ 8/201 56011 10088 20071

WEATHER SUMMARY FOR SUNDAY, AUGUST 31, 2014

TEMPERATURE (DEGREES F)
MAX…..83    NORMAL…..77
MIN…..63    NORMAL…..60
MEAN….73    NORMAL…..68

DEPARTURE FROM 30-YEAR NORMAL…………………….+5
TOTAL DEPARTURE FOR THE MONTH……………………-33 [-1.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..8   DEPARTURE………..+4
TOTAL COOLING UNITS FOR THE MONTH…………142   DEPARTURE……….-44
TOTAL COOLING UNITS FOR THE SEASON………..479   DEPARTURE……….-58
TOTAL COOLING UNITS LAST SEASON TO DATE……640   DIFFERENCE……..-161

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………26 SSW AT 10:14 A.M.
ASOS…………………..29 SSW AT  1:00 P.M.
DAVIS………………….28 SSW AT  9:06 A.M. RMY 31
FASTEST MILE FOR YESTERDAY………………..21 SSW AT 10:13 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..22 SW  AT 10:15 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….21 SSW AT 10:16 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..14.5 S
ASOS…………………..15.0
DAVIS………………….13.4 SSW [212 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.07  DEPARTURE……….-0.04
ASOS…………..0.06
TOTAL PRECIPITATION FOR AUGUST………….0.07  DEPARTURE……….-0.04
ASOS…………..0.06
TOTAL PRECIPITATION FOR THE YEAR……….31.18  DEPARTURE……….-3.84
ASOS………….31.43

PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1  86/63/75/+3/0.00/598/69              25 S   RMY 29
8/2  68/59/64/-8/0.11/009/01              21 ESE RMY 22
8/3  71/60/66/-6/0.01/104/12              12 SE  RMY 12
8/4  83/64/74/+2/0.00/550/64              20 S   RMY 21
8/5  87/66/77/+5/0.00/798/93              17 S   RMY 19
8/6  79/64/72/0/0.07/462/54               23 WNW RMY 25
8/7  79/58/69/-3/T/589/69                 22 NW  RMY 24 TSTM
8/8  82/55/69/-3/0.00/817/96              20 WNW RMY 20
8/9  82/60/71/-1/0.00/730/86              16 WNW RMY 17
8/10 84/63/74/+3/0.00/770/91              15 W   RMY N/A
8/11 85/63/74/+3/0.00/667/79              25 S   RMY 29
8/12 81/64/73/+2/0.00/387/46              25 SSE RMY N/A
8/13 69/61/65/-6/1.09/000/00              35 ESE RMY 37
8/14 73/57/65/-6/0.00/828/99              27 W   RMY 29
8/15 74/56/65/-6/0.09/459/55              23 W   RMY 23 TSTM
8/16 76/56/66/-5/0.00/640/77              24 SW  RMY 27
8/17 78/60/69/-2/0.01/555/67              21 WNW RMY 23
8/18 77/56/67/-4/0.00/776/94              23 WNW RMY 25
8/19 78/54/66/-4/0.00/816/99              17 WNW RMY 17
8/20 78/58/68/-2/0.00/813/99              15 NE  RMY 15
8/21 76/58/67/-3/T/434/53                 16 ENE RMY 17
8/22 71/60/66/-4/0.07/057/07              17 NE  RMY 19
8/23 71/58/65/-5/0.00/618/76              22 ENE RMY 25
8/24 78/58/68/-2/0.00/811/100             16 ENE RMY N/A
8/25 85/63/74/+5/0.00/808/100             16 NW  RMY 17
8/26 89/62/70/+7/0.00/…/..              20 SSW RMY 23
8/27 89/64/77/+8/0.03/…/..              23 SW  RMY 25
8/28 80/59/70/+1/0.00/…/..              25 NW  RMY 28
8/29 73/54/64/-5/0.00/…/..              18 E   RMY 21
8/30 77/55/66/-2/0.00/…/..              23 S   RMY 28
8/31 83/63/73/+5/0.07/…/..              26 SSW RMY 31

9/1 morning low temp: 69F; normal low now 59F

DAILY RECORDS FOR AUGUST 2014:
None so far.

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 AUGUST 31
HIGH 94F IN 1953
LOW 42F IN 1976
PRECIP 2.46 INCHES IN 1954
PEAK GUST 125 MPH SE IN 1954 [CAROL – RECORD FOR MONTH]

RECORDS FOR SEPTEMBER 1
HIGH 93F IN 1969, 2010
LOW 47F IN 1975
PRECIP 2.32 INCHES IN 2013
PEAK GUST 59e MPH S IN 1945, SSW IN 1965

TODAY’S REPORT PREPARED BY: Brian Fitzgerald