Monday, June 2, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 2, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

TEMPERATURE REACHES 80 DEGREES FOR ONLY 2ND TIME
DURING THIS YEAR TO DATE

Temperatures have reached the 80-degree mark today.

More monthly statistics and analysis will follow in the coming
days, so pleased check back on BlueHill.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] (CORRECTED)
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 2012:  5734 [660 more 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: 12688 of possible 27136 or 47%
Total Campbell Stokes card minutes; N/A of possible N/A or N/A%

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus mostly distant
Temperature: 61F; Dew Point: 45F; Wind: SW at 9 kts
Sea-level pressure: 30.22 ins. Hg, falling slightly
Visibility: 35 miles, WNW 45 miles, distant haze
6-hr max temp: 61F
6-hr min temp: 52F
BHO SA 1155 CLR 35 233/61/45/2309/022/ FEW MSTLY DSNT THN CI ALQDS
VSBY WNW 45 DSNT HZ ALQDS/ 8/001 56003 10061 20052

10 A.M.
Weather: Thin broken cirrus, 2 levels
Temperature: 74F; Dew Point: 50F; Wind: W at 6 kts
Sea-level pressure: 30.19 ins. Hg, falling then more rapidly
Visibility: 40 miles, WNW 50 miles, distant haze
BHO SA 1455 250 –BKN 300 SCT 40 223/74/50/2606/019/ 8/001 58010

1 P.M.
Weather: Scattered cirrocumulus, thin scattered cirrus, few
altocumulus castellanus NE-E, distant haze
Temperature: 80F; Dew Point: 47F; Wind: SSW at 11 kts
Sea-level pressure: 30.12 ins. Hg, falling then more rapidly
Visibility: 35 miles, WNW 45 miles, distant haze
6-hr max temp: 80F
6-hr min temp: 61F
BHO SA 1755 220 SCT 250 –SCT 300 –SCT 35 200/80/47/2011/012/ CC/CCSL
FEW ACC NE-E VSBY WNW 45 DSNT HZ/ 8/089 58023 10080 20061

WEATHER SUMMARY FOR SUNDAY, JUNE 1, 2014

TEMPERATURE (DEGREES F)
MAX…..80    NORMAL…..71
MIN…..47    NORMAL…..53
MEAN….60    NORMAL…..62

DEPARTURE FROM 30-YEAR NORMAL……………………..-2
TOTAL DEPARTURE FOR THE MONTH……………………..-2

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………5  DEPARTURE………  0
TOTAL HEATING UNITS FOR THE MONTH……………5  DEPARTURE………..0
TOTAL HEATING UNITS FOR THE SEASON………..6399  DEPARTURE………+91
TOTAL HEATING UNITS LAST SEASON TO DATE……5734  DIFFERENCE…….+665

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..0   DEPARTURE……….-2
TOTAL COOLING UNITS FOR THE MONTH………….13   DEPARTURE……….-2
TOTAL COOLING UNITS FOR THE SEASON…………13   DEPARTURE………-13
TOTAL COOLING UNITS LAST SEASON TO DATE…….46   DIFFERENCE……..-33

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………21  NNW AT  2:41 A.M.
ASOS…………………..23  NNE AT  2:41 A.M.
DAVIS………………….20  S   AT 10:39 P.M.  RMY 21
FASTEST MILE FOR YESTERDAY………………..19  NNW AT  2:53 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..18  NNW AT  2:53 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….17  NE  AT  9:02 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..10.9 NNW
ASOS…………………..11.3
DAVIS…………………..9.4 NNE [020 [20 deg] * Last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE………….-0.17
ASOS…………..0.00
TOTAL PRECIPITATION FOR MAY      ……….3.22  DEPARTURE………….-0.89
ASOS…………..3.21
TOTAL PRECIPITATION FOR THE YEAR……….22.34  DEPARTURE………….-0.32
ASOS………….22.71

PRELIMINARY CLIMATE SUMMARY FOR MAY – JUNE 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
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
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
5/31 60/49/55/-6/0.00/0.0/669/74          22 NE  RMY 25

6/1  72/47/60/-2/0.00/…/..              21 NNW RMY

6/2  morning low temp: 52F; the normal low is now 53F

DAILY RECORDS FOR MAY 2014
None so far.

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

RECORDS FOR JUNE 2
HIGH 91F IN 1895
LOW 41F IN 1907, 1929
PRECIP 2.36 INS IN 1982
SNOWFALL TRACE IN 1907 (IP)
PEAK GUST 63 MPH NW IN 2000

RECORDS FOR JUNE 3
HIGH 98F IN 1919
LOW 38F IN 1929
PRECIP 2.40 INS 2006
PEAK GUST 47 MPH NW IN 1998

TODAY’S REPORT PREPARED BY: Robert Skilling