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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, NOVEMBER 19, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
COLD BLAST RETURNS, TEMPS FALL TO 19F OVERNIGHT
Very clear and cold conditions were found at this morning’s
7:00 AM EST observation, with only a few cumulus distant
offshore. A westerly wind gusting to 30 MPH at times
brought wind chills down to near 0F at times before
sunrise this morning.
Yesterday’s maximum temperature of 44F was reached early
in the morning hours just after midnight, as the mercury
plunged throughout the day. Yesterday’s daytime maximum
was 38F.
At the 1:00 PM EST observation the maximum was 34F, well
above today’s record low maximum of 28F, set back in 1897.
Today’s Observations:
7 A.M.
Weather: Clear, few cumulus distant offshore SE-SSW
Temperature: 20F; Dew Point: 9F; Wind: W at 14G20 kts
Sea-level pressure: 30.08 ins. Hg, rising, then more quickly
Visibility: 60 miles, light distant haze
6-hr max temp: 22F
6-hr min temp: 19F
24-hr precip: 0.00 inches
BHO SA 1155 CLR 60 187/20/9/2614G20/008/ FEW CU DSNT OFFSHR SE-SSW
LGT DSNT HZ ALQDS/ 8/100 53025 10022 20019
10 A.M.
Weather: Sky clear
Temperature: 27F; Dew Point: 13F; Wind: W at 10G18 kts
Sea-level pressure: 30.15 ins. Hg, rising, then more slowly
Visibility: 70 miles
BHO SA 1455 CLR 70 211/27/13/2710G18/015/ SKC/ 8/000 51024
1 P.M.
Weather: Clear, few cumulus distant S and NW
Temperature: 34F; Dew Point: 15F; Wind: SW at 8 kts
Sea-level pressure: 30.14 ins. Hg, falling steadily
Visibility: 80 miles
6-hr max temp: 34F
6-hr min temp: 20F
6-hr precip: 0.00 inches
BHO SA 1755 CLR 80 206/34/15/2308/014/ FEW CU DSNT S AND NW/
8/100 57005 10034 20020
SUMMARY FOR TUESDAY, NOVEMBER 18, 2014
TEMPERATURE (DEGREES F)
MAX…..44 NORMAL…..49
MIN…..23 NORMAL…..33
MEAN….34 NORMAL…..41
DEPARTURE FROM 30-YEAR NORMAL…………………….-7
TOTAL DEPARTURE FOR THE MONTH……………………-18 [-1.2 DEGREE/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..31 DEPARTURE………..+7
TOTAL HEATING UNITS FOR THE MONTH………….401 DEPARTURE……….+18
TOTAL HEATING UNITS FOR THE SEASON…………823 DEPARTURE………-123
TOTAL HEATING UNITS LAST SEASON TO DATE…….837 DIFFERENCE………-14
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………33 W AT 2:05 P.M.
ASOS…………………..37 W AT 2:05 P.M.
DAVIS………………….35 WSW AT 11:21 A.M. RMY 39
FASTEST MILE FOR YESTERDAY………………..27 W AT 3:58 P.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE……………..29 W AT 2:06 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….26 W AT 2:06 P.M.
AVERAGE WIND SPEED AND DIRECTION…………16.3 W
ASOS…………………16.4
DAVIS………………..13.9 W (271 degrees)
* Last of several occurrences
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……….3.70 DEPARTURE…..+0.87
ASOS…………..3.73
TOTAL PRECIPITATION FOR THE YEAR……….45.25 DEPARTURE…..-1.35
ASOS………….45.60
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH…………….5.3 DEPARTURE……+4.5
TOTAL SNOWFALL FOR THE SEASON……………5.3 DEPARTURE……+4.2
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/…/.. 23 SSW RMY N/A
11/10 58/40/49/+5/0.00/0.0/…/.. 17 S RMY 20
11/11 61/43/52/+9/0.00/0.0/…/.. 22 S RMY 25
11/12 59/40/50/+7/0.00/0.0/…/.. 22 W RMY 25
11/13 49/32/41/-2/0.08/T/…/.. 21 NW RMY N/A
11/14 41/27/34/-8/0.00/0.0/…/.. 23 NW RMY 27
11/15 37/24/31/-11/0.00/0.0/…/.. 23 NW RMY 23
11/16 39/26/33/-9/0.00/0.0/…/.. 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/…/.. 33 W RMY 39
11/19 morning low temp: 19F since midnight; normal low now 33F
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 NOVEMBER 19
HIGH 72 IN 1941
LOW 10 IN 1936
PRECIP 1.92 INCHES IN 1926
SNOWFALL 11.0 INS IN 1986
PEAK GUST 59e E IN 1945
RECORDS FOR NOVEMBER 20
HIGH 72 IN 1953
LOW 10 IN 1894
PRECIP 2.78 INS IN 1988
SNOWFALL 3.0 INS IN 1897
PEAK GUST 73e S IN 1950
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
