Friday, August 2, 2019

| August 2, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 2, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

FAIR WEATHER DAY WITH LIGHT WIND…

Good visibility throughout the
day, with 75 miles being observed
till the 1 P.M observation where
it decreased to 70 miles. Dew
points stayed in the 50s and
upper 40s with relatively humidly
slowly dropping during the day
time hours. Winds started
northerly in the morning changing
to westerly by early afternoon
with speeds staying fairly light.
The high so far today is 82F, a
degrees above the daily normal
maximum of 81F. The low since
midnight is 61F, 2 degrees lower
than the normal low of 63F.

Today’s Observations:

7 A.M.
Weather: Clear
Temperature: 67F; Dew Point: 54F; Wind: N at 7 kts
Sea-level pressure: 30.15 ins. Hg, rising steadily
Visibility: 75 miles, distant haze
6-hr Max temp: 84F
6-hr Min temp: 61F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 75 210/67/54/3607/015/ DSNT HZ ALQDS/
8/000 53009 10084 20061

10 A.M.
Weather: Scattered cirrostratus
Temperature: 77F; Dew Point: 52F; Wind: NW at 3 kts
Wind: Light
Sea-level pressure: 30.15 ins. Hg, rising, then steady
Visibility: 75 miles, distant haze
3-hr Precip: 0.00 ins.
BHO SA 1455 250 SCT 75 212/77/52/3103/015/ DSNT HZ
ALQDS WND LGT/ 8/005 53002

1 P.M.
Weather: Scattered cirrostratus
Temperature: 80F; Dew Point: 48F; Wind: W at 6 kts
Wind: Light
Sea-level pressure: 30.12 ins. Hg, steady
Visibility: 70 miles, distant haze
6-hr Max temp: 82F
6-hr Min temp: 67F
6-hr Precip: 0.00 ins.
BHO SA 1755 250 SCT 70 201/80/48/2706/012/ DSNT HZ
ALQDS WND LGT/ 8/005 58011 10082 20067

SUMMARY FOR THURSDAY, AUGUST 1, 2019

TEMPERATURE (DEGREES F)
MAX…..84   NORMAL…..81
MIN…..66   NORMAL…..63
MEAN….75   NORMAL…..72

DEPARTURE FROM 30-YEAR NORMAL…………………+3
TOTAL DEPARTURE FOR THE MONTH…………………+3 [+3.0 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..10   DEPARTURE………-4
TOTAL COOLING UNITS FOR THE MONTH………….100   DEPARTURE………+3
TOTAL COOLING UNITS FOR THE SEASON…………421   DEPARTURE……..+63
TOTAL COOLING UNITS LAST SEASON TO DATE…….464   DEPARTURE……..-43

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..18 NNW AT 1:09 P.M.
AERO…………………….20 NW AT 2:18 P.M.
ASOS…………………….17 NW AT 1:09 P.M.
DAVIS……………………18 NW AT 9:33 A.M. RMY 17
FASTEST MILE FOR YESTERDAY………………….14 NW AT 3:18 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….14 W AT 3:44 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………14 W AT 3:43 P.M.
AVERAGE WIND SPEED AND DIRECTION……………7.7 SSW
ASOS……………………8.3
DAVIS…………………..8.4 NW [312 deg.]

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……….0.00  DEPARTURE……-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE YEAR……….35.33  DEPARTURE……+4.19
ASOS………….35.28

PRELIMINARY CLIMATE SUMMARY FOR JULY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system 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
M:    Missing data

07/01 83/58/71/+1/0.00/896/98               21 NNW AERO 21 NNW RMY N/A
07/02 82/65/74/+4/0.00/329/36               23 W   AERO 23 W   RMY 23
07/03 89/67/78/+7/0.00/866/95               18 S   AERO 18 S   RMY 18
07/04 88/68/78/+7/0.00/748/82               17 SSW AERO M  M   RMY 17
07/05 87/69/78/+7/0.00/829/91               21 SW  AERO M  M   RMY 21
07/06 90/71/81/+10/0.83/646/71              26 WNW AERO M  M   RMY N/A
07/07 78/64/71/0/0.00/827/91                30 NE  AERO M  M   RMY N/A
07/08 79/59/69/-3/0.00/763/84               16 N   AERO 18 SSW RMY N/A
07/09 85/61/73/+1/0.00/871/96               18 NW  AERO 16 NW  RMY 18
07/10 88/69/79/+7/0.00/607/67               20 ESE AERO 16 ESE RMY 17
07/11 81/67/74/+2/0.62/000/00               35 S   AERO 33 S   RMY 36
07/12 84/68/76/+4/0.00/316/35               31 WNW AERO 30 WNW RMY 32
07/13 85/65/75/+3/0.00/812/90               21 W   AERO 20 WSW RMY 20
07/14 87/68/78/+6/0.00/702/78               25 W   AERO 21 W   RMY 23
07/15 82/63/73/+1/0.00/791/88               24 WNW AERO 23 WNW RMY 22
07/16 86/65/76/+4/0.00/682/76               23 W   AERO 21 W   RMY 21
07/17 90/70/80/+8/1.32/…/..               44 W   AERO M  M   RMY 47
07/18 72/61/67/-5/0.04/…/..               33 NE  AERO 36 NE  RMY 33
07/19 89/61/75/+3/0.00/…/..               24 WSW AERO 26 SW  RMY 25
07/20 93/75/84/+12/0.00/…/..              21 WSW AERO 22 WSW RMY N/A
07/21 92/76/84/+12/0.00/…/..              31 W   AERO 35 W   RMY 31
07/22 81/64/73/+1/…./…/..               35 ENE AERO 37 ENE RMY 34
07/23 66/58/62/-10/…./…/..              30 NNE AERO 33 NNE RMY 30
07/24 77/60/69/-3/…./…/..               14 NE  AERO 15 NE  RMY N/A
07/25 80/61/71/-1/…./…/..            17 SSE AERO 23 N   RMY 17
07/26 84/62/73/+1/0.00/…/..               22 SSE AERO 23 SSE RMY 20
07/27 83/64/74/+2/…./…/..               21 S   AERO 23 S   RMY 21
07/28 89/64/77/+5/…./…/..               25 WSW AERO 36 WSW RMY 26
07/29 89/71/80/+8/…./…/..               23 W   AERO 25 W   RMY 21
07/30 93/71/82/+10/0.00/…/..              24 S   AERO 24 S   RMY 23
07/31 90/68/79/+7/0.55/…/..               37 SW  AERO 35 SW  RMY 38

8/1   84/66/75/3/…./..                    18 NNW AERO 20 NW  RMY 17

8/2 Low temp since midnight is 61F; normal low is 63F

DAILY RECORDS FOR JULY 2019

7/20/19: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 75F,
BREAKS PREVIOUS RECORD OF 73F SET IN 1977, 2015

7/21/19: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 76F,
BREAKS PREVIOUS RECORD OF 75F SET IN 1991

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

RECORDS FOR AUGUST 2
HIGH 101F IN 1975 [STATION RECORD MAXIMUM – Tied with 8/10/1949]
LOW 50F IN 1929, 1947
PRECIP 1.59 INCHES IN 1946
PEAK GUST 50 MPH SW IN 2006

RECORDS FOR AUGUST 3
HIGH 96F IN 1930
LOW 50F IN 1976
PRECIP 1.45 INCHES IN 1979
PEAK GUST 52 MPH NW IN 2008 [TSTM]

TODAY’S REPORT PREPARED BY: Nicholas Rousseau

Category: Daily Discussions

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