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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, FEBRUARY 22, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
SPECTACULAR WINTER DAY WITH MOSTLY CLEAR SKIES AND HIGH VISIBILITY
A cold front passed through the region last night. Showers and even some
thunderstorms accompanied this passage, with thunder and lightning observed
here last evening. Precipitation amounts were fairly low, with the showers
and storms only producing 0.16 inches of rain. The passage of the front also
ushered a very comfortable air mass into the region. Fog from yesterday and
last night had cleared by 7:00 this morning, leaving mostly clear skies. Skies
have remained mostly clear throughout the day. The temperature has risen to a
well above average 50F after a warm morning low of 33F. This will mark our
third consecutive day of well above average temperatures. Visibility has been
excellent today, about 80 miles for much of the day. The wind has increased
during the day today, with gusts this afternoon exceeding 30mph from the SW.
Today’s Observations:
7 A.M.
Weather: Scattered cirrus, altocumulus and altostratus distant NE-S
Temperature: 34F; Dew Point: 30F; Wind: SW at 12 kts
Sea-level pressure: 29.96 ins. Hg, rising then rising more slowly
Visibility: 75 miles
6-hr min temp: 33F
6-hr max temp: 37F
24-hr precip: 0.18 in.
Snow depth: 10 inches
BHO SA 1155 250 SCT 75 146/34/30/2212/996/ AC AND AS DSNT NE-S/ 8/071 53016
MANUAL 70018 ASOS 70020 10037 20033
10 A.M.
Weather: Clear, cirrus mostly distant ENE-SW and W, few altocumulus E-SSW
Temperature: 42F Dew Point: 28F; Wind: WSW at 10 kts
Sea-level pressure: 29.98 ins. Hg, rising then rising more slowly
Visibility: 80 miles
BHO SA 1455 CLR 80 154/42/28/2410/998/ CI MSTLY DSNT ENE-SW AND W
FEW AC E-SSE/ 8/051 51008
1 P.M.
Weather: Clear, cirrus distant E-S and SW-N, few small cumulus distant WNW
Temperature: 49F; Dew Point: 24F; Wind: S at 21G26 kts
Sea-level pressure: 29.91 Hg, rising slightly then falling
Visibility: 80 miles
6-hr max. temp: 50F
6-hr min. temp: 34F
BHO SA 1755 CLR 80 130/49/24/1921G26/991/ CI DSNT E-S AND SW-N
FEW SML CU DSNT WNW PK WND/ 8/101 58024 10050 20034
WEATHER SUMMARY FOR FRIDAY, FEBRUARY 21, 2014
TEMPERATURE (DEGREES F)
MAX…..49 NORMAL…..38
MIN…..33 NORMAL…..20
MEAN….41 NORMAL…..29
DEPARTURE FROM 30-YEAR NORMAL……………………+12
TOTAL DEPARTURE FOR THE MONTH……………………-15 [-0.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..24 DEPARTURE………-12
TOTAL HEATING UNITS FOR THE MONTH………….806 DEPARTURE………+13
TOTAL HEATING UNITS FOR THE SEASON………..4323 DEPARTURE………..0
TOTAL HEATING UNITS LAST SEASON TO DATE……3909 DIFFERENCE…….+414
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………32 S AT 6:12 P.M. *
AERO…………………..35 S AT 6:12 P.M.
ASOS…………………..35 S AT 6:12 P.M.
DAVIS………………….35 S AT 6:11 P.M. RMY 35
FASTEST MILE FOR YESTERDAY………………..29 S AT 6:02 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..28 S AT 6:03 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….26 S AT 6:12 P.M.
AVERAGE WIND SPEED AND DIRECTION………… 13.5 E
ASOS………………….13.0
DAVIS…………………12.1 ESE [114 deg.]
* last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.18 DEPARTURE………….+0.03
ASOS…………..0.20
TOTAL PRECIPITATION FOR THE MONTH……….5.39 DEPARTURE………….+2.43
ASOS…………..5.55
TOTAL PRECIPITATION FOR THE YEAR………..10.01 DEPARTURE………….+2.70
ASOS…………..10.46
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…………..-0.5
TOTAL SNOWFALL FOR THE MONTH……………32.0 DEPARTURE………….+21.6
TOTAL SNOWFALL FOR THE SEASON…………..80.8 DEPARTURE………….+37.3
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY: RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
2/1 45/30/38/+12/0.00/0.0/402/67 24 S AERO 23 MPH S RMY 25
2/2 53/33/43/+17/0.00/0.0/181/30 22 S AERO 21 MPH WNW RMY 21
2/3 36/22/29/+3/0.32/2.8/000/00 22 NNE AERO 18 MPH NNE RMY 21
2/4 33/18/26/0/0.00/0.0/377/62 20 NW AERO 16 MPH NW RMY 17
2/5 31/21/26/0/1.32/10.7/000/00 32 ENE AERO 30 MPH ENE RMY 30
2/6 26/15/21/-5/0.02/0.4/398/65 22 WNW AERO 21 MPH WNW RMY 22
2/7 29/13/21/-6/0.00/0.0/615/100 25 W AERO 23 MPH W RMY 27
2/8 28/12/20/-7/0.00/0.0/612/99 24 W AERO 23 MPH W RMY 23
2/9 28/19/24/-3/0.05/1.0/112/18 21 N AERO 17 MPH N RMY 19
2/10 27/14/21/-6/0.00/0.0/617/99 28 NW AERO 28 MPH NW RMY 30
2/11 24/8/16/-11/0.00/0.0/625/100 22 WNW AERO 20 MPH WNW RMY 25
2/12 25/2/14/-13/0.00/0.0/509/81 25 NNW AERO 23 MPH NW RMY 21
2/13 33/19/26/-2/1.67/5.0/000/00 46 NE AERO 51 MPH NE RMY 51
2/14 34/27/31/+3/0.39/0.4/348/55 48 W AERO 51 MPH WNW RMY 49
2/15 34/27/31/+3/0.68/7.2/025/04 35 NW AERO 35 MPH NW RMY 48
2/16 30/18/24/-4/0.03/0.4/549/86 45 NW AERO 46 MPH NW RMY N/A
2/17 27/9/18/-10/0.00/0.0/635/99 38 NW AERO 38 MPH NW RMY 41
2/18 32/12/22/-7/0.32/4.0/000/00 27 ESE AERO 25 MPH WNW RMY 28
2/19 35/20/28/-1/0.25/0.1/…/.. 21 W AERO 20 MPH ESE RMY 26
2/20 48/30/39/+10/…./…/…/.. 26 WNW AERO 28 MPH W RMY 26
2/21 49/33/41/+12/…./0.0/…/.. 32 S AERO 35 MPH S RMY 35
2/22 morning low temp: 33F; the normal low is now 20F
DAILY RECORDS FOR FEBRUARY 2014
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 22
HIGH 63F IN 1997
LOW -1F IN 1918
PRECIP 1.38 INCHES IN 1900
SNOWFALL 8.0 INCHES IN 1893
PEAK GUST 74 MPH S IN 1974
RECORDS FOR FEBRUARY 23
HIGH 62F IN 1990
LOW -8F IN 1907
PRECIP 1.48 INCHES IN 1967
SNOWFALL 10.6 INCHES IN 1967
PEAK GUST 73 MPH WNW IN 1974
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
