Friday, August 29, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 29, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

A BEAUTIFUL SUNNY, WARM AND DRY DAY

A beautiful warm, dry late summer day today again
today with cooler temperatures than yesterday mostly
in the lower 70’s with a sea breeze. Visibility up to 75 miles.

Today’s Observations:

7 A.M.
Weather: Clear, cumulus along and offshore ENE-ESE,
cirrus distant SSW-WSW
Temperature: 59F; Dew Point: 52F; Wind: NW at 7 kts,
Sea-level pressure: 30.14 ins. Hg, rising then more rapidly
Visibility: 80 miles
6-hr max temp: 59F
6-hr min temp: 54F
24-hr precip: 0.00
BHO SA 1155 CLR 80 207/59/52/3207/014/ CU ALG/OFFSHR ENE-ESE
CI DSNT SSW-WSW/ 8/101 53024 10059 20054

10 A.M.
Weather: Scattered cumulus/stratocumulus generated by cumulus
Temperature: 70F; Dew Point: 52F; Wind: ENE at 8 kts,
Wind: Direction variable NE-ESE
Sea-level pressure: 30.19 ins. Hg, rising then more slowly
Visibility: 75 miles, light distant haze
BHO SA 1455 30 SCT 75 225/70/52/0708/019/ CU FRMG ALQDS LGT DSNT HZ
WND 04V11/ 8/100 51018

1 P.M.
Weather: Scattered cumulus except overhead-NE, few stratocumulus
distant E-ESE
Temperature: 71F; Dew Point: 53F; Wind: ENE at 9 kts,
Wind: Variable direction, NNE-E
Sea-level pressure: 30.21 ins. Hg, rising slightly
Visibility: 75 miles, light distant haze
6-hr max. temp: 73F
6-hr min. temp: 59F
BHO SA 1755 38 SCT 75 231/71/53/0709/021/ CU XCPT OVHD-NE FEW SC
DSNT E-ESE LGT DSNT HZ WND 03V10/ 8/800 51006 10073 20059

WEATHER SUMMARY FOR THURSDAY, AUGUST 28, 2014

TEMPERATURE (DEGREES F)
MAX…..80    NORMAL…..78
MIN…..59    NORMAL…..60
MEAN….70    NORMAL…..69

DEPARTURE FROM 30-YEAR NORMAL…………………….+1
TOTAL DEPARTURE FOR THE MONTH……………………-31 [-1.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..5   DEPARTURE…………0
TOTAL COOLING UNITS FOR THE MONTH…………133   DEPARTURE……….-40
TOTAL COOLING UNITS FOR THE SEASON………..470   DEPARTURE……….-54
TOTAL COOLING UNITS LAST SEASON TO DATE……626   DIFFERENCE……..-156

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………25  NW   AT  2:30 P.M. *
ASOS…………………..28  NW   AT  3:16 P.M.
DAVIS………………….27  WNW  AT  3:16 P.M. RMY 28
FASTEST MILE FOR YESTERDAY………………..19  NW   AT  3:17 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20  NW   AT  3:17 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18  WNW  AT  3:18 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..12.1 NW
ASOS…………………..11.4
DAVIS…………………..9.9 NW [320 deg.] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……….-0.11
ASOS…………..0.00
TOTAL PRECIPITATION FOR AUGUST………….1.48  DEPARTURE……….-2.22
ASOS…………..1.43
TOTAL PRECIPITATION FOR THE YEAR……….31.11  DEPARTURE……….-3.58
ASOS………….30.99

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 morning low temp: 54F; normal low now 60F

DAILY RECORDS FOR AUGUST 2014:
None so far.

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

RECORDS FOR AUGUST 29
HIGH 95F IN 1953
LOW 41F IN 1982
PRECIP 2.88 INCHES IN 1962
PEAK GUST 70e MPH S IN 1949

RECORDS FOR AUGUST 30
HIGH 94F IN 1953
LOW 39F IN 1965
PRECIP 2.75 INCHES IN 1936
PEAK GUST 43 MPH NW IN 1965

TODAY’S REPORT PREPARED BY: Robert Skilling