Sunday, March 24, 2019
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, MARCH 24, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME
WIND SPEEDS DROP AND CLOUD COVER DIMINISHES OVER NIGHT,
THEN INCREASE SLIGHTLY IN THE LATE MORNING INTO THE EARLY
AFTERNOON…
Weather today is calmer than the previous two days
at Blue Hill Observatory. Our maximum wind speed for yesterday
was 45 mph WNW at 9:07 A.M., and speeds remained relatively high for
the remainder of the day, frequently gusting over 35 mph. At
both 7 and 10 o’clock EST observations at the observatory today,
the sky remained mostly clear, with a slight increase in cloud
cover from 1/8 to 2/8 of the sky being obscured between these times.
Wind speed also increased slightly gusting above 25 mph occasionally.
At the 1 o’clock EST observation, clouds obscured 5/8 of the sky,
and measured wind speeds continue to gust over 25 mph. However,
these wind speeds and lack of significant weather are a change from
the storm that passed through over the past few days. The maximum
temperature so far today is 54F, 7 degrees above our normal
maximum temperature for today of 47F.
Today’s Observations:
7 A.M.
Weather: Clear, few cirrus SW-W
Temperature: 31F; Dew Point: 17F; Wind: WSW at 10 kts
Sea-level pressure: 30.06 ins. Hg, rising then more slowly
Visibility: 80 miles
6-hr Max temp: 31F
6-hr Min temp: 28F
24-hr Precip: 0.00 ins.
24-hr snowfall: 0.0 ins.
Snow depth: 0 ins.
BHO SA 1155 CLR 80 180/31/17/2510/006/ FEW CI SW-W/ 8/001 51013
10031 20028
10 A.M.
Weather: Scattered cirrostratus
Temperature: 44F; Dew Point: 19F; Wind: WSW at 8 kts
Sea-level pressure: 30.06 ins. Hg, steady then increasing
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 250 SCT 80 181/44/19/2408/006/ 8/008 53001
1 P.M.
Weather: Broken cirrostratus, few stratocumulus in all
directions
Temperature: 53F; Dew Point: 15F; Wind: SW at 11G22 kts
Sea-level pressure: 29.99 ins. Hg, falling, then more quickly
Visibility: 80 miles
6-hr Max temp: 54F
6-hr Min temp: 31F
6-hr Precip: 0.00 ins.
6-hr snowfall: 0.0 ins.
BHO SA 1755 E250 BKN 80 156/53/15/2311G22/999/ FEW SC ALQDS/
8/408 58025 10054 20031
SUMMARY FOR SATURDAY, MARCH 23, 2019
TEMPERATURE (DEGREES F)
MAX…..45 NORMAL…..46
MIN…..28 NORMAL…..29
MEAN….37 NORMAL…..38
DEPARTURE FROM 30-YEAR NORMAL…………………….-1
TOTAL DEPARTURE FOR THE MONTH……………………-33 [-1.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..28 DEPARTURE………+1
TOTAL HEATING UNITS FOR THE MONTH………….742 DEPARTURE……..+33
TOTAL HEATING UNITS FOR THE SEASON………..5228 DEPARTURE……..-49
TOTAL HEATING UNITS LAST SEASON TO DATE……4867 DIFFERENCE……+361
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..45 WNW AT 9:07 A.M.
AERO…………………….M
ASOS…………………….49 WNW AT 9:07 A.M.
DAVIS……………………48 W AT 9:06 A.M. RMY 50
FASTEST MILE FOR YESTERDAY………………….37 WNW AT 9:19 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….31 WNW AT 2:17 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………37 W AT 9:20 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..23.1 WNW
ASOS…………………..21.0
DAVIS………………….22.6 W [261 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE…….-0.19
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….3.95 DEPARTURE…….-0.16
ASOS…………..3.96
TOTAL PRECIPITATION FOR THE YEAR……….12.91 DEPARTURE…….+0.38
ASOS………….13.03
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……..-0.3
TOTAL SNOWFALL FOR THE MONTH……………23.1 DEPARTURE…….+12.7
TOTAL SNOWFALL FOR THE SEASON…………..47.6 DEPARTURE……..-9.8
PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
03/01 38/17/28/-3/…./…/…/.. 16 NNW AERO 13 NNW RMY 22
03/02 31/27/29/-2/…./…/…/.. 29 NNE AERO 22 NNE RMY 30
03/03 40/25/33/+1/…./…/…/.. 21 ESE AERO 14 ESE RMY N/A
03/04 35/18/27/-5/…./…/…/.. 33 W AERO 18 W RMY 32
03/05 29/10/20/-12/0.00/0.0/…/.. 28 WNW AERO 12 SW RMY N/A
03/06 24/10/17/-15/0.00/0.0/…/.. 40 WNW AERO 25 WNW RMY 41
03/07 26/6/16/-17/0.00/0.0/…/.. 35 W AERO 18 W RMY 34
03/08 35/11/23/-10/0.00/0.0/…/.. 23 WSW AERO M M RMY M
03/09 43/22/33/0/0.00/0.0/…/.. 20 WSW AERO M M RMY N/A
03/10 40/26/33/0/…./…/…/.. 32 ESE AERO 23 S RMY 32
03/11 48/33/41/+7/…./…/…/.. 40 NW AERO 37 NNW RMY 41
03/12 41/27/34/0/…./…/…/.. 32 N AERO 33 N RMY 34
03/13 43/24/34/0/…./…/…/.. 18 W AERO 21 W RMY 23
03/14 48/32/40/0/…./…/…/.. 25 S AERO 28 S RMY M
03/15 58/40/49/+14/0.12/0.0/…/.. 37 SSW AERO 38 SSW RMY 39
03/16 50/31/41/+6/0.00/0.0/…/.. 45 W AERO 46 W RMY 48
03/17 40/26/33/-3/0.00/0.0/…/.. 40 WNW AERO M M RMY N/A
03/18 41/22/32/-4/0.00/0.0/…/.. 29 W AERO M M RMY 30
03/19 44/25/35/-1/0.00/0.0/…/.. 25 W AERO M M RMY N/A
03/20 50/27/39/+2/0.00/0.0/…/.. 26 S AERO M M RMY 29
03/21 50/33/42/+5/…./…/…/.. 25 SSE AERO M M RMY 46
03/22 39/34/37/0/…./…/…/.. 40 W AERO M M RMY 44
03/23 45/28/37/-1/0.00/0.0/…/.. 45 WNW AERO M M RMY 50
03/24 Low temp since midnight is 28F; normal low is 29F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MARCH 24
HIGH 70 IN 1920
LOW 6 IN 1906
PRECIP 1.51 INS. IN 1956
SNOWFALL 12.3 INS. IN 1956
PEAK GUST 71 MPH W IN 1968
RECORDS FOR MARCH 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.0 INS. IN 1912
PEAK GUST 69 MPH SE IN 1969
TODAY’S REPORT PREPARED BY: Samantha Richard
