Thursday, January 24, 2019
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, JANUARY 24, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME
A RAINY DAY WITH STRONG WINDS AND WELL ABOVE
NORMAL TEMPERATURES….
Today’s weather was rainy and windy with low visibility
and rapidly falling pressure. Over the observation
period, pressure dropped by almost 11 millibars.
Wind from the south has remained above 30 mph on average,
with a peak gust so far today of 69 mph following the
1 P.M observation. The record max gust for this date is
82 mph, set in 1996. Rain has increased in intensity after
noontime, leaving 0.35 inches in the gauge by 1 P.M.
Rainfall this morning amounted to 0.03 inches, measured
at 7 A.M. Considering the significant warm air advection
from the south, temperatures so far today significantly
exceed seasonal averages. The high so far today is 55F,
21 degrees above the daily normal of 34F. The low since
midnight is 46F, 29 degrees above the normal minimum of 17F.
Today’s Observations:
7 A.M.
Weather: Scattered stratus fractus, overcast
nimbostratus, continued light rain
Temperature: 49F; Dew Point: 49F; Wind: S at 25G36 kts,
Peak wind: 44 MPH (38 kts) S at 6:26 A.M.
Sea-level pressure: 29.74 ins. Hg, falling rapidly
Visibility: 5 miles, fog
6-hr Max temp: 50F
6-hr Min temp: 47F
24-hr Precip: 0.03 in.
24-hr snowfall: 0.0 ins.
Snow depth: 0 ins.
BHO SA 1155 15 SCT E65 OVC 5R-F 070/49/49/1925G36/974/
PK WND 1938/26 R-CTD/ 8/72/ 56032 70003 10050 20047
10 A.M.
Weather: Overcast nimbostratus with a few stratus
fractus, continued light rain
Temperature: 52F; Dew Point: 52F; Wind: S at 26G46 kts,
Peak wind: 59 MPH (51 kts) S at 9:28 A.M.
Sea-level pressure: 29.62 ins. Hg, falling rapidly
Visibility: 5 miles, fog
3-hr Precip: 0.05 ins.
BHO SA 1455 E65 OVC 5R-F 030/52/52/1926G46/962/ FEW STFA
ALQDS PK WND 1951/28 R-CTD/ 8/72/ 56040 6005/
1 P.M.
Weather: Overcast nimbostratus with a few stratus
fractus, continued rain
Temperature: 54F; Dew Point: 54F; Wind: S at 33G57 kts,
Peak wind: 68 MPH (59 kts) S at 12:03 P.M.
Sea-level pressure: 29.41 ins. Hg, falling rapidly
Visibility: 5 miles, fog
6-hr Max temp: 55F
6-hr Min temp: 49F
6-hr Precip: 0.35 ins.
6-hr snowfall: 0.0 ins.
Snow depth: 0 ins.
BHO SA 1755 E65 OVC 5RF 961/54/54/1933G57/941/ FEW
STFA ALQDS PK WND 1959/03 R CTD/ 8/72/ 56069 6035/
10055 20049
SUMMARY FOR WEDNESDAY, JANUARY 23, 2019
TEMPERATURE (DEGREES F)
MAX…..46 NORMAL…..34
MIN…..15 NORMAL…..17
MEAN….31 NORMAL…..25
DEPARTURE FROM 30-YEAR NORMAL……………………+6
TOTAL DEPARTURE FOR THE MONTH…………………..+16 [+0.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..34 DEPARTURE………-6
TOTAL HEATING UNITS FOR THE MONTH………….893 DEPARTURE……..-16
TOTAL HEATING UNITS FOR THE SEASON………..3189 DEPARTURE……..-24
TOTAL HEATING UNITS LAST SEASON TO DATE……3036 DIFFERENCE……+140
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..37 SSW AT 11:32 P.M.
AERO…………………….39 SSW AT 11:09 P.M.
ASOS…………………….40 S AT 11:32 P.M.
DAVIS……………………37 SSW AT 1:37 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….29 SSW AT 11:28 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….29 S AT 7:52 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………28 SSW AT 7:47 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..19.4 SSW
ASOS…………………..19.4
DAVIS………………….18.2 SSW [212 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.03 DEPARTURE…….-0.11
ASOS…………..0.06
TOTAL PRECIPITATION FOR THE MONTH……….3.69 DEPARTURE…….+0.43
ASOS…………..3.73
TOTAL PRECIPITATION FOR THE YEAR………..3.69 DEPARTURE…….+0.43
ASOS…………..3.73
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……..-0.5
TOTAL SNOWFALL FOR THE MONTH…………….4.2 DEPARTURE……..-8.6
TOTAL SNOWFALL FOR THE SEASON…………..11.9 DEPARTURE…….-16.9
PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
01/01 54/29/42/+15/…./0.0/386/72 53 W AERO 53 W RMY 54
01/02 34/24/29/+2/…./…/432/81 22 NW AERO 22 NW RMY N/A
01/03 42/28/35/+9/0.01/T/228/43 28 WNW AERO 30 WNW RMY 30
01/04 43/30/37/+11/…./…/354/66 29 SW AERO 29 SW RMY 29
01/05 41/32/37/+11/1.19/000/000/00 26 NE AERO 25 NNW RMY 27
01/06 42/21/32/+6/0.00/0.0/300/56 42 NW AERO 46 NW RMY 50
01/07 26/14/20/-6/…/…/474/88 37 NW AERO 41 NW RMY N/A
01/08 40/24/32/+6/…/…/000/00 24 SSE AERO 23 SSE RMY N/A
01/09 42/31/37/+11/…/…/…/.. 44 W AERO 46 WNW RMY 45
01/10 32/20/26/+1/T/T/…/.. 37 NW AERO 41 NW RMY 43
01/11 26/12/19/-6/0.00/0.0/…/.. 36 WNW AERO 37 WNW RMY 38
01/12 26/9/18/-7/0.00/0.0/…/.. 32 NW AERO 32 NW RMY 29
01/13 25/11/18/-7/0.00/0.0/…/.. 18 NNW AERO 16 NW RMY N/A
01/14 27/20/24/-1/0.00/0.0/…/.. 20 NNE AERO 17 N RMY N/A
01/15 34/18/26/1/0.00/0.0/…/.. 22 NW AERO 21 NNW RMY N/A
01/16 34/23/29/+4/0.00/0.0/…/.. 33 W AERO 32 W RMY 35
01/17 27/13/20/-5/0.00/0.0/…/.. 30 NNW AERO 28 NW RMY N/A
01/18 40/21/31/+6/0.00/0.0/…/.. 18 WNW AERO 18 WNW RMY N/A
01/19 31/24/28/+3/…/1.6/…/.. 30 E AERO 30 E RMY N/A
01/20 33/3/18/-7/…/…/…/.. 39 ENE AERO 43 ENE RMY 39
01/21 3/-2/1/-24/0.00/0.0/…/.. 32*WNW AERO 41 WNW RMY M
01/22 24/0/12/-13/0.00/0.0/…/.. 28 NW AERO 30 NW RMY 29
01/23 46/15/31/+6/0.00/0.0/…/.. 37 SSW AERO 39 SSW RMY N/A
01/24 Low temp since midnight is 46F; normal low is 17F
*Official gust chart reading low
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JANUARY 24
HIGH 60F IN 1967
LOW -12F IN 1907
PRECIP 2.04 INS. IN 1998
SNOWFALL 11.3 INS. IN 1935
PEAK GUST 82 MPH S IN 1996
RECORDS FOR JANUARY 25
HIGH 56F IN 2010
LOW -10F IN 1935
PRECIP 2.24 INS. IN 1979
SNOWFALL 12.5 INS. IN 1941
PEAK GUST 81 MPH WNW IN 1972
TODAY’S REPORT PREPARED BY: Benjamin Turner
