Monday, December 1, 2014

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

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

NOVEMBER FINISHES COOLER, WETTER AND SNOWIER THAN
NORMAL, DECEMBER BEGINS WITH HIGHS IN THE LOWER 60S

November came to a close at midnight with an unseasonably
warm overnight low of 49F, well above today’s daily minimum
of 29F. Yesterday’s maximum of 55F was matched by mid morning
today with a maximum reading of 63F by the 1:00 PM EST
observation today.

Monthly statistics are being compiled below. Please note some
of these statistics have yet to be finalized. Check back
in the coming days for final monthly statistics or visit
BlueHill.org.

NOVEMBER 2014 PRELIMINARY STATS
[Departures are relative to the 1981-2010 normal]

TEMPERATURE [deg. F]

Av. Max. 48.0 [-2.0] Av. Min. 32.2 [-1.3] Mean     40.1 [-1.6] 24-hour corr. mean: 40.3
Max. temp. for month: 66 on 5th
Min, temp. for month: 17 on 29th
Total heating degree day units: 737 [+39] Total seasonal heating   units: 1159 [-102]

PRECIPITATION [ins.] Total: N/A
Greatest one calendar day: N/A
Greatest in 24 hours N/A
Snowfall: 8.7 [+6.4]

WIND
Av. wind speed:       13.1 MPH
Av. corr. wind speed: 13.4 MPH
Prevailing direction: W @ 15%

SUNSHINE
Total astronomical minutes: N/A
Total Campbell Stokes card minutes: N/A

Today’s Observations:

7 A.M.
Weather: Scattered altocumulus, scattered cirrus
and cirrostratus
Temperature: 51F; Dew Point: 42F; Wind: SSW at 15 kts
Sea-level pressure: 30.05 ins. Hg, rising, then more quickly
Visibility: 30 miles, hazy
6-hr max temp: 51F
6-hr min temp: 49F
24-hr precip: 0.00 in.
24-hr snowfall: 0.0 in.
Total snow on ground: 0
BHO SA 1155 100 SCT 250 SCT 30 177/51/42/2115/005/
HAZY/ 8/055 53009 10051 20049

10 A.M.
Weather: Clear, few altocumulus distant WSW-NE,
few cirrus in all directions
Temperature: 59F; Dew Point: 44F; Wind: SW at 15G20 kts
Sea-level pressure: 30.07 ins. Hg, rising, then more slowly
Visibility: 30 miles, hazy
BHO SA 1455 CLR 30 184/59/44/2215G20/007/
FEW AC DSNT WSW-NE FEW CI ALQDS HAZY/ 8/052 51007

1 P.M.
Weather: Scattered altocumulus, broken cirrus,
few altocumulus lenticularis distant ENE-SE
Temperature: 63F; Dew Point: 46F; Wind: W at 10 kts
Sea-level pressure: 30.06 ins. Hg, falling, then more slowly
Visibility: 30 miles, hazy
6-hr max temp: 63F
6-hr min temp: 50F
6-hr precip: 0.00 in.
BHO SA 1755 90 SCT E250 BKN 30 178/63/46/2810/006/
FEW ACSL DSNT ENE-SE HAZY/ 8/052 56006 10063 20050

SUMMARY FOR SUNDAY, NOVEMBER 30, 2014

TEMPERATURE (DEGREES F)
MAX…..55   NORMAL…..45
MIN…..30   NORMAL…..29
MEAN….43   NORMAL…..37

8DEPARTURE FROM 30-YEAR NORMAL…………………….+6
TOTAL DEPARTURE FOR THE MONTH…………………….-40 [-1.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..22  DEPARTURE………..-6
TOTAL HEATING UNITS FOR THE MONTH………….737  DEPARTURE……….+39
TOTAL HEATING UNITS FOR THE SEASON………..1159  DEPARTURE………-102
TOTAL HEATING UNITS LAST SEASON TO DATE……1224  DIFFERENCE………-65

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………32 SSW AT 10:08 A.M.
ASOS…………………..36 SSW AT 10:09 A.M.
DAVIS………………….34 SSW AT 10:08 A.M. RMY 38
FASTEST MILE FOR YESTERDAY………………..28 SSW AT  1:12 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..28 SSW AT  1:13 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….37 SSW AT  1:14 P.M.
AVERAGE WIND SPEED AND DIRECTION……………18.5 SSW
ASOS……………………18.4
DAVIS…………………..17.0 S (192 degrees)

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE…..-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….6.21  DEPARTURE…..+1.45
ASOS…………..6.32
TOTAL PRECIPITATION FOR THE YEAR……….47.76  DEPARTURE…..-0.77
ASOS………….48.19

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH…………….8.7  DEPARTURE……+6.4
TOTAL SNOWFALL FOR THE SEASON……………8.7  DEPARTURE……+6.1

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/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

11/1  45/36/41/-5/0.79/0.0/000/00              35 NNE RMY N/A
11/2  37/32/35/-11/0.29/1.8/000/00             46 NW  RMY 49
11/3  50/30/45/-6/0.00/0.0/584/95              39 WNW RMY 43
11/4  61/44/53/+8/0.00/0.0/208/34              28 SSW RMY 32
11/5  66/50/58/+13/0.00/0.0/006/01             29 SSW RMY N/A
11/6  52/45/49/+4/0.58/0.0/000/00              23 NE  RMY 24
11/7  46/34/40/-5/0.00/0.0/079/13              39 NW  RMY 42
11/8  47/30/39/-5/0.00/0.0/555/92              24 W   RMY 25
11/9  56/38/47/+3/0.00/0.0/204/34              23 SSW RMY N/A
11/10 58/40/49/+5/0.00/0.0/592/99              17 S   RMY 20
11/11 61/43/52/+9/0.00/0.0/358/60              22 S   RMY 25
11/12 59/40/50/+7/0.00/0.0/095/16              22 W   RMY 25
11/13 49/32/41/-2/0.08/T/450/76                21 NW  RMY N/A
11/14 41/27/34/-8/0.29/3.5/442/75              23 NW  RMY 27
11/15 37/24/31/-11/0.00/0.0/569/97             23 NW  RMY 23
11/16 39/26/33/-9/0.00/0.0/012/02              17 S   RMY 19
11/17 52/34/43/+2/1.67/0.0/000/00              29 ENE RMY 31
11/18 44/23/34/-7/0.00/0.0/494/85              33 W   RMY 39
11/19 35/19/27/-14/0.00/0.0/544/94             31 WSW RMY N/A
11/20 47/26/37/-3/0.00/0.0/542/94              35 WSW RMY 41
11/21 34/22/28/-12/0.00/0.0/569/99             31 WNW RMY 39
11/22 43/20/32/-8/0.00/0.0/…/..              32 SW  RMY 36
11/23 58/40/49/+10/0.00/0.0/…/..             26 SW  RMY N/A
11/24 63/43/53/+14/0.60/0.0/…/..             44 S   RMY 53
11/25 61/44/53/+14/0.00/0.0/…/..             28 SW  RMY 30
11/26 44/31/38/+0/…./…/000/00              41 NE  RMY 46
11/27 36/27/32/-6/…./…/…/..              29 N   RMY N/A
11/28 32/21/27/-11/…./…/…/..             29 WNW RMY 32
11/29 32/17/25/-12/0.00/0.0/…/..             17 S   RMY N/A
11/30 55/30/43/+6/0.00/0.0/…/..              32 SSW RMY 38

12/1 morning low temp: 49F since midnight; the normal low is now 29F

DAILY RECORDS FOR NOVEMBER 2014:
11/2  – A NEW RECORD DAILY SNOWFALL: 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951
11/14 – DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES;
ties previous record on this date in 1997

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

RECORDS FOR DECEMBER 1
HIGH 70 IN 2001
LOW 3 IN 1887
PRECIP 1.46 INS. IN 1917
SNOW 2.0 INS. IN 1902
PEAK GUST 72 MPH NW IN 1964

RECORDS FOR DECEMBER 2
HIGH 61 IN 1998
LOW 3 IN 1890
PRECIP 2.09 INS. IN 1974
SNOWFALL 5.0 INS. IN 1894, 1929
PEAK GUST 89e MPH SSE IN 1942

TODAY’S REPORT PREPARED BY: Brian Fitzgerald