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Thursday, June 5, 2014

June 5, 2014

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JUNE…

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

DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, JUNE 5, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

THICK FOG AND RAIN MOVE IN THIS MORNING

Yesterday’s 24-hour average wind speed of 5.0 MPH SE falls very
far down on the list of windy days here on top of Great Blue Hill.
Historically wind averages nearly three times that speed, with peak
gusts much higher than yesterday’s 16 MPH.

Rain has been falling almost continuously all morning, with 0.03 inches
falling overnight, and 0.12 inches between 7:00 and 10:00 AM EST.
By 1:00 PM EST and additional 0.31 inches fell.

Visibility has also been greatly reduced for the majority of the morning
to 1/16 or less at times.

More monthly statistics and analysis will follow in the coming
days, so pleased check back on bluehillobservatory.org for more information.

THE PRELIMINARY MAY 2014 STATS

[Departures are relative to the 1981-2010 averages]

TEMPERATURE: Deg. F
Avg. Max. 67.7 [+1.4] Avg. Min. 48.3 [+0.5] Mean      58.0 [+0.9] 24-hr. corrected mean: 57.3
Max. temp: 85F on the 12th
Min. temp: 39F on the 29th
Total heating degree day units: 223 [-45] Total seasonal heating units:   6394 [91 more than average] [Season starts 7/1] Seasonal total this date 2013:  5734 [660 more than last season] Total cooling degree day units: 13 [-9] Total seasonal cooling units: 13 [-11 less than average] [Season starts  5/1] Seasonal total this date 2013: 31 [-18 less than last season]

PRECIPITATION: Inches
Total: 3.22 [-0.89] Greatest in 24 hours: 1.30 (16-17th)
Total snowfall: 0 [+/-0.0] Greatest in 24 hours: 0

WIND
Av. speed (uncorrected): 10.9 mph
Av. speed (corrected):   11.4 mph
Prevailing direction: S 12%

SUNSHINE
Total astronomical minutes: 12,688 of possible 27,136 or 47%
Total Campbell Stokes card minutes; 12,276 of possible 26,226 or 47%

Today’s Observations:

7 A.M.
Weather: Thick fog
Temperature: 60F; Dew Point: 59F; Wind: estimated N at 4 kts
Wind Speed: Light
Sea-level pressure: 29.76 ins. Hg, rising, then falling, but higher
Visibility: 1/16 of a mile, obscured by thick fog
6-hr max temp: 60F
6-hr min temp: 58F
24-hr precip: 0.08
BHO SA 1155 W3 X 1/16F 079/60/59/E0104/976/ RE45 WND LGT/
8//// 53003 ASOS 60002 70007 MANUAL 70008 10060 20058

10 A.M.
Weather: Light rain and thick fog
Temperature: 58F; Dew Point: 58F; Wind: NNE at 7 kts
Sea-level pressure: 29.72 ins. Hg, falling, then more slowly
Visibility: 1/16 of a mile, obscured by thick fog and light rain
3-hr precip: 0.12
BHO SA 1455 W3 X 1/16R-F 067/58/58/0207/972/
8//// 56009 ASOS 60011 MANAUAL 60012

1 P.M.
Weather: Light rain, thick fog
Temperature: 56F; Dew Point: 56F; Wind: NE at 12G18 kts
Sea-level pressure: 29.66 ins. Hg, falling, then falling more quickly
Visibility: 1/8 of a mile, obscured by thick fog and light rain
6-hr max temp: 60F
6-hr min temp: 56F
3-hr precip: 0.31 inches
BHO SA 1755 W3 X 1/8R-F 043/56/56/0412G18/966/
8/// 58024 ASOS 60043 MANUAL 60043 10060 20056

WEATHER SUMMARY FOR WEDNESDAY, JUNE 4, 2014

TEMPERATURE (DEGREES F)
MAX…..64    NORMAL…..72
MIN…..52    NORMAL…..54
MEAN….58    NORMAL…..63

DEPARTURE FROM 30-YEAR NORMAL……………………..-5
TOTAL DEPARTURE FOR THE MONTH……………………..+5 [+1.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………7  DEPARTURE……….+3
TOTAL HEATING UNITS FOR THE MONTH…………..12  DEPARTURE……….-6
TOTAL HEATING UNITS FOR THE SEASON………..6406  DEPARTURE………+85
TOTAL HEATING UNITS LAST SEASON TO DATE……5740  DIFFERENCE…….+666

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..0   DEPARTURE……….-2
TOTAL COOLING UNITS FOR THE MONTH…………..6   DEPARTURE……….-1
TOTAL COOLING UNITS FOR THE SEASON…………19   DEPARTURE………-12
TOTAL COOLING UNITS LAST SEASON TO DATE…….57   DIFFERENCE……..-38

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………16  SE  AT   4:48 A.M.
ASOS…………………..17  ESE AT   4:49 A.M.
DAVIS………………….17  ESE AT   4:50 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..15  SE  AT   4:48 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..14  SE  AT   4:50 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….14  SE  AT   4:48 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..5.0 SE
ASOS…………………..5.5
DAVIS………………….4.8 ESE [119 deg] * Last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.08  DEPARTURE………….-0.09
ASOS…………..0.07
TOTAL PRECIPITATION FOR THE MONTH……….0.14  DEPARTURE………….-0.52
ASOS…………..0.13
TOTAL PRECIPITATION FOR THE YEAR……….22.48  DEPARTURE………….-0.84
ASOS………….22.84

PRELIMINARY CLIMATE SUMMARY FOR MAY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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

5/1  64/43/54/+1/0.49/0.0/093/11          32 SSE RMY 36
5/2  68/51/60/+7/T/0.0/457/54             28 W   RMY 29
5/3  66/48/57/+4/0.00/0.0/332/39          21 SW  RMY N/A
5/4  60/47/54/0/0.01/0.0/400/47           51 WNW RMY 54
5/5  64/46/55/+1/T/0.0/592/70             30 NW  RMY 32
5/6  63/42/53/-1/T/0.0/506/59             30 NW  RMY 30
5/7  64/42/55/0/0.00/0.0/850/99           21 WNW RMY 23
5/8  69/48/59/+4/0.00/0.0/612/71          17 SSW RMY 19
5/9  57/51/54/-1/0.05/0.0/000/00          21 S   RMY N/A
5/10 78/57/68/+13/0.10/0.0/043/05         33 S   RMY 37  TSTM
5/11 79/58/69/+13/0.01/0.0/746/86         30 W   RMY N/A
5/12 85/49/67/+11/0.00/0.0/792/91         39 NE  RMY 42
5/13 54/42/48/-8/0.00/0.0/113/13          32 NE  RMY N/A
5/14 73/42/58/+1/T/ 0.0/613/70            22 S   RMY 24
5/15 77/57/67/+10/T/0.0/140/16            27 S   RMY 33
5/16 73/60/67/+10/0.26/0.0/026/03         36 S   RMY 41
5/17 74/52/63/+6/1.04/0.0/555/63          36 SSE RMY N/A
5/18 67/47/57/-1/0.00/0.0/521/59          20 NW  RMY N/A
5/19 65/48/56/-2/0.12/0.0/443/50          35 NNW RMY 38
5/20 71/48/60/+2/T/0.0/771/89             25 NNW RMY 26
5/21 71/51/61/+2/0.00/0.0/844/95          18 ESE RMY 20
5/22 67/51/59/0/0.26/0.0/116/13           15 SSE RMY 18
5/23 60/49/55/-4/0.05/0.0/000/00          16 NE  RMY 18
5/24 65/49/57/-2/0.02/0.0/277/31          17 ENE RMY 18
5/25 71/49/60/0/0.00/0.0/430/48           20 S   RMY N/A
5/26 76/52/64/+4/0.05/0.0/108/12          30 W   RMY 34
5/27 74/47/61/+1/0.37/0.0/242/27          25 NE  RMY 31  TSTM
5/28 48/40/44/-17/0.30/0.0/000/00         32 NE  RMY 35
5/29 61/39/50/-11/0.00/0.0/847/94         17 NNE RMY 18
5/30 71/45/58/-3/0.09/0.0/550/61          20 S   RMY 22  TSTM
5/31 60/49/55/-6/0.00/0.0/669/74          22 NE  RMY 25

6/1  72/47/60/-2/0.00/0.0/…/..          21 NNW RMY 21
6/2  81/52/67/+5/0.00/0.0/…/..          22 SSW RMY 23
6/3  81/57/69/+7/…./…/…/..          25 SSE RMY 28
6/4  64/52/58/-5/…./…/…/..          16 SE  RMY N/A

6/5 morning low temp: 57F; the normal low is now 54F

DAILY RECORDS FOR JUNE 2014
None so far.

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

RECORDS FOR JUNE 5
HIGH 95F IN 1930
LOW 41F IN 1891
PRECIP 2.83 INS IN 1982
PEAK GUST 57 MPH NNW IN 1988

RECORDS FOR JUNE 6
HIGH 95F IN 1925
LOW 42F IN 1885, 1894, 1920, 1945
PRECIP 3.61 INS IN 2000
PEAK GUST 58 MPH NE IN 2000

TODAY’S REPORT PREPARED BY: Brian Fitzgerald

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

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