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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, MARCH 24, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
COLD LINGERS FOR ONE MORE DAY, TEMPERATURES FOR THE
MONTH NOW 4F DEGREES BELOW NORMAL
Mostly cloudy conditions with high cirrus overhead present
at this morning’s 7:00 AM EST, when an overnight minimum
temperature of 16F was recorded. Thin fog and haze were present
as well, which somewhat limited visibility.
Yesterday’s maximum temperature reading of 31F was 15 degrees
below the normal, and also 15 degrees below the daily average
temperature. Following one of the coldest February’s on record
here at BHO, March has been significantly colder than normal,
with temperatures averaging more than 4 degrees below the norm.
By the 1:00 PM EST observation high cirrus clouds were invading
once more and were becoming dense. Visibility had dropped from
as much as 70 miles to 40 miles under hazy conditions. A maximum
temperature reading of 35F had been recorded.
For more information about this historic winter, visit our
web site at bluehillobservatory.org.
BHO Greatest Seasonal Snowfall, inches (1885-2015):
1) 145.8 in 2014-2015 (through 1 PM March 24th)
2) 144.4 in 1995-1996
3) 136.0 in 1947-1948
4) 119.4 in 2004-2005
5) 113.1 in 2002-2003
6) 111.5 in 1915-1916
7) 109.6 in 1966-1967
8) 106.8 in 1955-1956
9) 103.4 in 1903-1904
10) 102.5 in 1922-1923
Today’s Observations:
7 A.M.
Weather: Broken cirrus, broken cirrocumulus,
few stratocumulus distant offshore NE-SE
Temperature: 19F; Dew Point: 7F; Wind: N at 8 kts
Sea-level pressure: 30.31 ins. Hg, rising then more slowly
Visibility: 70 miles, thin fog
6-hr Max temp: 20F
6-hr Min temp: 16F
24-hr precip: none
24-hr snowfall: none
Snow depth: 15 inches
BHO SA 1155 E220 BKN 280 BKN 70 264/19/7/3508/031/ FEW SC DSNT
OFFSHR NE-SE THN FG ALQDS/ 8/509 4/015 51012 10020 20016
10 A.M.
Weather: Clear, few cumulus E, few cirrus distant E-SSE
Temperature: 29F; Dew Point: 16F; Wind: estimated N at 5 kts
Wind Speed: Light
Sea-level pressure: 30.34 ins. Hg, rising, then steady
Visibility: 50 miles, hazy
BHO SA 1455 CLR 50 274/29/16/E3605/034/ FEW CU E FEW CI E-SSE
HAZY WND LGT/ 8/101 51010
1 P.M.
Weather: Broken dense cirrus
Temperature: 35F; Dew Point: 19F; Wind: estimated NW at 3 kts
Wind Speed: Light
Sea-Level Pressure: 30.31 ins. Hg, steady, then falling
Visibility: 40 miles, hazy
6-hr Max temp: 35F
6-hr Min temp: 19F
BHO SA 1755 E250 BKN 40 264/35/19/E3103/031/ HAZY WND LGT/
8/004 58010 10035 20019
SUMMARY FOR MONDAY, MARCH 23, 2015
TEMPERATURE (DEGREES F)
MAX…..31 NORMAL…..46
MIN…..14 NORMAL…..29
MEAN….23 NORMAL…..38
DEPARTURE FROM 30-YEAR NORMAL………………………-15
TOTAL DEPARTURE FOR THE MONTH………………………-92 [-4.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..42 DEPARTURE……….+15
TOTAL HEATING UNITS FOR THE MONTH………….801 DEPARTURE……….+91
TOTAL HEATING UNITS FOR THE SEASON………..5509 DEPARTURE………+232
TOTAL HEATING UNITS LAST SEASON TO DATE……5277 DIFFERENCE……..+132
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………36 WNW AT 11:18 A.M.
ASOS…………………..35 WNW AT 11:20 A.M.
DAVIS………………….34 WNW AT 11:19 A.M. RMY 35
FASTEST MILE FOR YESTERDAY………………..27 WNW AT 11:19 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..26 WNW AT 11:21 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….25 WNW AT 11:21 A.M.
AVERAGE WIND SPEED AND DIRECTION………….15.0 WNW
ASOS………………….14.3
DAVIS…………………12.9 WNW [294 degrees]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE…..-0.20
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.96 DEPARTURE…..-1.98
ASOS…………..N/A
TOTAL PRECIPITATION FOR THE YEAR……….13.30 DEPARTURE…..+1.07
ASOS…………..N/A ***
*** ASOS monthly and annual totals not available due to erroneous readings
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……-0.4
TOTAL SNOWFALL FOR THE MONTH…………….8.3 DEPARTURE……-2.1
TOTAL SNOWFALL FOR THE SEASON………….145.8 DEPARTURE…..+88.4
PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
3/1 29/14/22/-9/…./…/000/00 25 SSW RMY 25
3/2 35/22/29/-2/…./…/480/71 44 WNW RMY 48
3/3 32/13/23/-9/…./2.8/340/50 33 S RMY N/A
3/4 41/32/37/+5/…./…/000/00 33 SW RMY 36
3/5 36/16/26/-6/0.02/0.2/000/00 28 NW RMY 29
3/6 26/5/16/-16/0.00/0.0/681/99 28 NW RMY 25
3/7 38/13/26/-7/0.00/0.0/567/82 30 WSW RMY 30
3/8 41/25/33/0/T/T/208/30 38 WNW RMY 41
3/9 45/28/37/+4/0.00/0.0/565/81 40 W RMY 39
3/10 52/32/42/+9/…./0.0/252/36 28 S RMY 27
3/11 55/38/47/+13/…./0.0/604/86 37 WNW RMY N/A
3/12 38/23/31/-3/0.00/0.0/677/96 44 N RMY 48
3/13 40/18/29/-5/0.00/0.0/581/82 23 SSW RMY 26
3/14 41/29/35/0/0.84/0.0/000/00 23 SSW RMY 23
3/15 41/24/33/-2/0.03/0.6/021/03 39 NW RMY 39
3/16 44/23/34/-1/0.00/0.0/516/72 28 NW RMY N/A
3/17 48/25/37/+1/0.17/T/173/24 53 NW RMY 63
3/18 30/19/25/-11/0.00/0.0/700/97 51 NW RMY 56
3/19 31/15/23/-13/0.00/0.0/696/96 37 NW RMY 39
3/20 32/19/26/-11/…./…/000/00 17 NNW RMY 15
3/21 41/25/33/-4/…./…/…/.. 36 WNW RMY N/A
3/22 36/17/27/-10/0.00/0.0/…/.. 50 W RMY 55
3/23 31/14/23/-15/0.00/0.0/…/.. 36 WNW RMY 35
3/24 Low since midnight is 16F normal low is 29F
DAILY RECORDS FOR MARCH 2015
-NONE SO FAR.
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: Brian Fitzgerald
