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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, MARCH 25, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0539E
SUNSET: 1802E
OVERCAST DAY AHEAD OF RAIN ENTERING THE AREA…
Today started with a beautiful sunrise with minimal obstruction
from clouds before 0600E. Shortly after, clouds began to move
quickly into the area with little sky visible at the 7:00 observation.
So far, the weather has been consistent with temperatures
remaining in the mid-high 30’s, overcast conditions, and periodically
gusty wind since about 8 AM. We are expecting rain in the area shortly
as of about 1:00 EST.
The high temperature so far today was 39F, 8 degrees below the normal
maximum temperature for today of 47F. The low since midnight so far is
33F, 3 degrees above our normal minimum temperature of 30F.
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Today’s Observations:
7 A.M.
Weather: Broken altostratus
Temperature: 37F; Dew Point: 30F; Relative Humidity: 75%
Wind: E @ 8G16 kts
Sea-level pressure: 1022.9 mb; 30.21 in. Hg: steady then rising
Visibility: 70 miles
6-hr Max temp: 37F
6-hr Min temp: 33F
24-hr Precip: 0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 E150 BKN 70 229/37/30/0908G16/021/ 8/020 53009 10037 20033
10 A.M.
Weather: Overcast altostratus, few stratocumulus in all directions
Temperature: 37F; Dew Point: 29F; Relative Humidity: 72%
Wind: E @ 13G21 kts
Sea-level pressure: 1021.7 mb; 30.17 in. Hg: rising then falling
Visibility: 70 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E150 OVC 70 217/37/29/1013G21/017/ FEW SC ALQDS/
8/42/ 57012
1 P.M.
Weather: Overcast stratus fractus, hazy
Temperature: 38F; Dew Point: 31F; Relative Humidity: 75%
Wind: ESE @ 11 kts
Sea-level pressure: 1018.3mb; 30.07 in. Hg: rising then falling
Visibility: 40 miles
6-hr Max temp: 39F
6-hr Min temp: 37F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0.0 ins.
BHO SA 1755 E60 OVC 40 183/38/31/1111/007/ HAZY/ 8/6// 57034 10039 20037
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SUMMARY FOR FRIDAY, MARCH 24, 2023
TEMPERATURE (DEGREES F)
MAX…….52 NORMAL…..47
MIN…….36 NORMAL…..29
MEAN……44 NORMAL…..38
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+6
TOTAL DEPARTURE FOR THE MONTH…………………+91 [+3.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………21 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE MONTH…………..642 DEPARTURE…….-93
TOTAL HEATING UNITS FOR THE SEASON…………4362 DEPARTURE……-805
TOTAL HEATING UNITS LAST SEASON TO DATE…….4678 DEPARTURE……-316
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,3
420C, Contacting, Merlin and Richards are all Main Tower.
420C (Official)…………32 WNW @ 12:19 A.M.
VECTOR #1 (1-Sec)……….33 WNW @ 12:20 A.M.
VECTOR #2 (1-Sec)……….32 WNW @ 12:12 A.M.
DAVIS #1……………….31 W @ 12:20 A.M.
DAVIS #2 ………………33 WNW @ 12:12 A.M.
RMY #1 (Instantaneous)…..33 WNW @ 12:20 A.M.
RMY #2 (Instantaneous)…..34 WNW @ 12:42 A.M.
MERLIN…………………22 NW
RICHARDS (C5C) (Inst)……33 @ 12:20 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 WNW @ 12:10 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 WNW @ 12:50 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 WNW @ 12:42 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 W @ 12:52 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 NW @ 12:13 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 WNW @ 12:50 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 WNW @ 12:13 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………20 @ 12:50 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….10.4 NW [249 total miles]
VECTOR #1……………..10.3
VECTOR #2……………..11.3
DAVIS #1………………10.5 NW
DAVIS #2………………11.0 NNW
RMY #1………………..10.0 NW
RMY #2………………..10.9 NNW
RICHARDS (C5C)…………10.7
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH…………..5.03 DEPARTURE…..+0.74
TOTAL PRECIPITATION FOR THE YEAR…………..13.68 DEPARTURE…..+0.89
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE MONTH……………….10.6 DEPARTURE……-2.0
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……34.9 DEPARTURE…..-29.6
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PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
VEC1: Vector #1 1-second gust
RMY: R.M. Young wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
3/1 43/27/35/+4/0.00/0.0/425/63 20 NW VEC1 21 SE RMY 21
3/2 40/34/37/+5/0.31/0.0/000/00 35 NW VEC1 36 NW RMY 39
3/3 44/29/37/+5/0.01/0.1/462/68 33 NW VEC1 34 NW RMY 36
3/4 33/28/31/-1/0.82/3.3/000/00 48 E VEC1 49 NE RMY 52
3/5 41/25/33/+1/0.00/0.0/240/35 35 NW VEC1 36 NW RMY 37
3/6 46/31/39/+6/0.00/0.0/571/83 46 WNW VEC1 48 NW RMY 51
3/7 38/26/32/-1/T/T/387/56 41 NW VEC1 42 NW RMY 46
3/8 44/26/35/+2/T/T/194/28 32 N VEC1 34 N RMY 34
3/9 47/32/40/+7/0.00/0.0/473/68 28 NW VEC1 28 NW RMY 29
3/10 49/27/38/+4/T/0.0/616/88 18 W VEC1 18 SE RMY 17
3/11 36/29/33/-1/0.14/T/000/00 32 NE VEC1 34 NE RMY 34
3/12 41/28/35/+1/0.00/0.0/571/81 26 NNE VEC1 26 NNE RMY 27
3/13 41/32/37/+3/0.52/0.0/000/00 29 E VEC1 31 E RMY 33
3/14 39/31/35/0/3.18/6.9/000/00 51 NNE VEC1 52 NNE RMY 55
3/15 39/30/35/0/0.00/0.0/342/48 46 NNW VEC1 49 NNW RMY 53
3/16 49/29/39/+4/0.00/0.0/445/62 30 NW VEC1 31 NW RMY 34
3/17 52/37/45/+9/T/0.0/036/05 32 S VEC1 36 S RMY 36
3/18 52/36/44/+8/0.01/0.0/376/52 30 WNW VEC1 31 WNW RMY 31
3/19 38/26/32/-4/0.00/0.0/682/94 47 WNW VEC1 46 WNW RMY 46
3/20 51/25/38/+1/0.00/0.0/706/97 32 WSW VEC1 34 WSW RMY 35
3/21 58/32/45/+8/0.00/0.0/…/.. 33 WNW VEC1 35 WNW RMY 36
3/22 55/38/47/+10/T/0.0/…/.. 24 SSW VEC1 25 SSW RMY 26
3/23 59/45/52/+14/0.01/0.0/…/.. 35 SSW VEC1 36 SSW RMY 37
3/24 52/36/44/+6/0.00/0.0/…/.. 32 WNW VEC1 33 WNW RMY 33
3/25 The low since midnight is 33F, the daily normal low is 30F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.8 INS. IN 2018
PEAK GUST 69 MPH SE IN 1969
RECORDS FOR MARCH 26
HIGH 76 IN 1922, 1949
LOW 6 IN 1960
PRECIP 1.99 INS. IN 1988
SNOWFALL 5.4 INS. IN 2001
PEAK GUST 63 MPH S IN 1970
TODAY’S REPORT PREPARED BY: Samantha Richard
