Tuesday, February 28, 2017
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, FEBRUARY 28, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
UNSEASONABLY MILD TEMPERATURES CONTINUE
Temperatures continued to warm from yesterday’s 52F and
reached 56F at the 1PM EST observation. The normal temperature
for today is 40F. Winds switched back to coming from the south and
were milder than yesterday. Winds were light between the 10AM and
1PM observations. Visibility varied from 40-70 miles throughout the
day due to distant early morning fog and late morning/early afternoon
haze. The morning brought overcast skies and started to break up by
the 1PM observation. Humidity lowered throughout the day and made for
a drier afternoon.
The new daily high minimum temperature record of 47F on
February 24, 2017 ties as second-highest minimum temperature
for February at Blue Hill Observatory. The three-day cumulative
temperature departure for February 23-25, 2017 of +79F ranks as
third highest three-day cumulative temperature departure for the
winter season.
Highest February Daily Maximum Temperature, deg F (1885-2017)
1) 71 on 24 Feb 2017
2) 68 on 24 Feb 1985
68 on 25 Feb 2017
4) 67 on 26 Feb 1957
67 on 25 Feb 1976
67 on 23 Feb 2017
7) 66 on 20 Feb 1930
66 on 19 Feb 1981
9) 65 on 18 Feb 1981
65 on 01 Feb 1989
BHO Warmest February Daily High Minimum Temperature, deg F (1885-2017)
1) 49 on 20 Feb 1981
2) 47 on 28 Feb 1910
47 on 23 Feb 1990
47 on 24 Feb 2017
5) 46 on 26 Feb 1957
6) 45 on 22 Feb 1954
45 on 5 Feb 1991
45 on 21 Feb 2002
BHO Warmest February 24-Hour Mean Temperature , deg F (1885-2016)
1) 34.9 in 1984
2) 34.3 in 2012
3) 34.0 in 1998
4) 33.9 in 1954
33.9 in 1981
6) 33.7 in 1976
7) 33.6 in 1997
33.6 in 2002
BHO Warmest Winter (Dec-Feb) 24-Hour Mean Temperature, deg F (1885-2016)
1) 34.9 in 2015-2016
2) 34.8 in 2001-2002
3) 34.3 in 2011-2012
4) 32.6 in 1997-1998
5) 32.3 in 1936-1937
32.3 in 1998-1999
7) 32.2 in 1932-1933
BHO Highest Winter 3-Day Cumulative Temperature Departure, deg F (1885-2017)
1) +98 on 14-16 Jan 1995 (65/45/55/+30, 64/54/59/+34, 63/55/59/+34)
2) +80 on 4-6 Jan 2007 (53/40/47/+21, 61/46/54/+28, 66/48/57/+31)
3) +79 on 23-25 Feb 2017 (67/40/54/+24, 71/47/59/+29, 68/44/56/+26)
4) +77 on 18-20 Feb 1981 (65/42/54/+25, 66/43/55/+26, 60/49/55/+26)
+77 on 3-5 Feb 1991 (58/37/48/+22, 62/41/52/+26, 65/45/55/+29)
6) +75 on 7-9 Jan 2008 (54/39/47/+21, 65/45/55/+29, 59/42/51/+25)
Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 42F; Dew Point: 32F; Wind: W at 7 kts
Sea-level pressure: 30.41 ins. Hg, rising then falling
Visibility: 50 miles. light distant fog in all directions
6-hr Max temp: 42F
6-hr Min temp: 37F
24-hr precip: 0.00 in.
24-hr snowfall: 0.0 in.
BHO SA 1155 E85 OVC 50 297/42/32/2607/041/ LT DSNT FG ALQDS/
8/6// 50006 10042 20037
10 A.M.
Weather: Scattered stratocumulus, broken altostratus, broken
altocumulus
Temperature: 46F; Dew Point: 32F; Wind: S at 3 kts
Sea-level pressure: 30.40 ins. Hg, rising then falling
Visibility: 40 miles, distant haze in all directions
BHO SA 1455 64 SCT E79 BKN E140 OVC 40 295/46/32/1703/040/
DSNT HZ ALQDS WND LGT/ 8/53/ 58002
1 P.M.
Weather: Broken altocumulus
Temperature: 56F; Dew Point: 32F; Wind: SE at 6 kts
Sea-level pressure: 30.34 ins. Hg, falling then more quickly
Visibility: 70 miles, distant haze in all directions
6-hr Max temp: 56F
6-hr Min temp: 39F
BHO SA 1755 E90 BKN 70 275/56/32/1406/034/ DSNT HZ ALQDS
WND LGT/ 8/030 58020 10056 20039
SUMMARY FOR MONDAY, FEBRUARY 27, 2017
TEMPERATURE (DEGREES F)
MAX…..52 NORMAL…..40
MIN…..26 NORMAL…..22
MEAN….39 NORMAL…..31
DEPARTURE FROM 30-YEAR NORMAL…………………….+8
TOTAL DEPARTURE FOR THE MONTH…………………..+169 [+6.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..26 DEPARTURE……….-8
TOTAL HEATING UNITS FOR THE MONTH………….832 DEPARTURE……..-171
TOTAL HEATING UNITS FOR THE SEASON………..3859 DEPARTURE……..-675
TOTAL HEATING UNITS LAST SEASON TO DATE……3650 DIFFERENCE…….+209
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….37 SW AT 2:34 P.M.
AERO……………………40 SW AT 2:41 P.M.
ASOS……………………39 W AT 2:34 P.M.
DAVIS…………………..38 WNW AT 3:52 P.M. RMY 41
FASTEST MILE FOR YESTERDAY…………………30 SW AT 2:43 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………29 W AT 2:44 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..29 W AT 2:44 P.M.
AVERAGE WIND SPEED AND DIRECTION………….15.5 SW
ASOS………………….15.9
DAVIS…………………14.2 WSW [249 deg.]
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……….3.78 DEPARTURE……-0.12
ASOS…………….NA
TOTAL PRECIPITATION FOR THE YEAR………..9.28 DEPARTURE……+1.03
ASOS…………….NA
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH……………31.5 DEPARTURE……+18.1
TOTAL SNOWFALL FOR THE SEASON…………..52.3 DEPARTURE…….+5.8
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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
2/1 40/25/33/+7/0.03/0.4/228/38 43 W AERO 44 W RMY 47
2/2 38/25/32/+6/T/T/265/44 36 WNW AERO 37 WNW RMY 36
2/3 30/19/25/-1/0.00/0.0/351/58 28 WNW AERO 29 WNW RMY 31
2/4 31/15/23/-3/0.00/0.0/590/97 31 WNW AERO 30 WNW RMY N/A
2/5 43/22/33/+7/0.00/0.0/092/15 38 SSW AERO 41 SSW RMY N/A
2/6 37/28/33/+7/0.00/0.0/503/82 41 WNW AERO 41 WNW RMY 43
2/7 37/30/34/+7/0.54/0.7/000/00 32 ENE AERO 31 ENE RMY 32
2/8 49/25/37/+10/T/0.0/136/22 25 W AERO 25 W RMY 31
2/9 35/8/22/-5/1.60/16.9/000/00 54 NNE AERO 53 NNE RMY 54 TSTM
2/10 24/7/16/-11/T/T/623/100 43 WNW AERO 50 WNW RMY 48
2/11 27/15/21/-6/0.14/2.9/000/00 21 SE AERO 20 SE RMY 19
2/12 32/17/25/-2/0.71/5.6/000/00 22 ENE AERO 28 ENE RMY N/A
2/13 32/20/26/-2/0.27/2.2/032/05 48 NW AERO 60 NW RMY 61
2/14 35/16/26/-2/0.00/0.0/…/.. 23 NW AERO 24 NW RMY 24
2/15 40/25/33/+5/0.17/1.2/…/.. 31 SE AERO 33 NW RMY N/A
2/16 33/23/28/0/0.17/1.6/…/.. 38 WNW AERO 38 WNW RMY 40
2/17 38/19/29/+1/0.00/0.0/…/.. 36 WNW AER0 35 WNW RMY 35
2/18 50/24/37/+8/0.00/0.0/…/.. 31 SSW AERO 33 SSW RMY 34
2/19 58/42/50/+21/0.00/0.0/…/.. 32 W AERO 33 W RMY 32
2/20 42/29/36/+7/0.00/0.0/…/.. 25 NW AERO 28 NW RMY 27
2/21 44/25/35/+6/0.00/0.0/…/.. 24 SSE AERO 22 SSW RMY 24
2/22 56/34/45/+16/T/0.0/…/.. 24 SSW AERO 24 SSW RMY N/A
2/23 67/40/54/+24/0.00/0.0/…/.. 36 SSW AERO 35 SSW RMY 37
2/24 71/47/59/+29/0.00/0.0/…/.. 41 SSW AERO 41 SSW RMY 44
2/25 68/44/56/+26/0.15/0.0/…/.. 37 WNW AERO 35 WNW RMY 46
2/26 44/25/36/+6/0.00/0.0/…/.. 46 WNW AERO 50 W RMY 44
2/27 52/26/39/+8/0.00/0.0/…/.. 37 SW AERO 40 SW RMY 41
2/28 Low temp since midnight is 37F; normal low is now 22F
DAILY RECORDS FOR FEBRUARY 2017
2/09/17: NEW DAILY RECORD MAXIMUM SNOWFALL OF 16.9 INS.
PREVIOUS RECORD WAS 14.0 INS. SET IN 2015
2/23/17: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 67F
PREVIOUS RECORD WAS 62F SET IN 1990
2/24/17: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 71F
PREVIOUS RECORD WAS 68F SET IN 1985
2/24/17: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 47F
PREVIOUS RECORD HIGH MINIMUM TEMPERATURE OF 43F
WAS SET IN 1930 AND TIED IN 1985 AND 2000
2/25/17: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 68F
PREVIOUS RECORD WAS 67F SET IN 1976
2/25/17: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 44F,
TIES PREVIOUS RECORD SET IN 1930
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 28
HIGH 62F IN 1976
LOW -2F IN 1907,1934
PRECIP 1.79 INCHES IN 1958
SNOWFALL 8.5 INCHES IN 2005
PEAK GUST 88e MPH SSW IN 1943
RECORDS FOR MARCH 1
HIGH 62 IN 1972
LOW -3 IN 1886
PRECIP 1.65 INS. IN 1900
SNOWFALL 9.4 INS. IN 1949
PEAK GUST 78 WSW IN 1966
TODAY’S REPORT PREPARED BY: Kaitlin Ann Geagan
