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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 2, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
MILD START TO FEBRUARY CONTINUES
The temperature has risen to 53F this afternoon, the first time we have
risen above 50F since January 13. The morning low of 33F was only a couple
degrees away from our average high for this time of year of 35F. The record
high temperature for today’s date is 55F. These warm temperatures have come
along with mostly cloudy skies today, but there were plenty of breaks in the
clouds late this morning. The Sun has also been able to shine filtered
through some high clouds, much like yesterday. Thicker clouds have arrived
by early this afternoon, which are now acting to block the Sun and will
likely keep us short of our record high temperature for today. The wind has
been mainly light at about 10mph, gradually shifting from SW to W during the
day. Some thin fog reduced the visibility below 15 miles this morning, and
it has only increased to about 35 miles this afternoon with distant haze.
All monthly data below is preliminary, with some data currently
unavailable. Keep posted for a monthly discussion on our website,
bluehillobservatory.org.
THE PRELIMINARY JANUARY 2014 STATS
[Departures are relative to the 1981-2010 averages]TEMPERATURE: Deg. F
Avg. Max. 33.2 [-0.6]
Avg. Min. 16.7 [-0.4]
Mean 25.0 [-0.5]
24-hr. corrected mean: 24.8
Max. temp: 57F on 6th and 11th
Min. temp: -4F on 4th
Total heating degree day units: 1240 [+14]
Total seasonal heating units: 3517 [-14 less than average]
[Season starts 7/1]
Seasonal total this date 2012: 3126 [391 more than last season]
PRECIPITATION: Inches
Total: 4.62 [+0.27]
Greatest in 24 hours: N/A (2nd-3rd)
Total snowfall: 33.1 [+16.0]
Greatest in 24 hours: N/A (2nd-3rd)
WIND
Av. speed (uncorrected): 14.2 mph
Av. speed (corrected): 14.5 mph
Prevailing direction: W 25%
SUNSHINE
Total astronomical minutes: N/A of possible N/A or N/A%
Total Campbell Stokes card minutes; N/A of possible N/A or N/A%
BHO Snowiest January’s, inches (1886-2014)
1) 56.3 in 1948
2) 48.2 in 2011
3) 48.0 in 1904
4) 47.6 in 1996
5) 46.0 in 1966
6) 44.8 in 2005
7) 44.5 in 1923
8) 38.3 in 1987
9) 35.6 in 1978
10) 33.1 in 2014
Today’s Observations:
7 A.M.
Weather: Broken cirrus, few stratocumulus NE-SE, few altocumulus E-S, thin
fog all quadrants
Temperature: 39F; Dew Point: 37F; Wind: SW at 10 kts,
Sea-level pressure: 29.90 ins. Hg, falling
Visibility: 12 miles, thin fog
6-hr. min temp: 33F
Snow depth: Trace
BHO SA 1155 E240 BKN 12 124/39/37/2310/990/ SC NE-SE FEW AC E-S
THN FG ALQDS/ 8/571 57009 10039 20033
10 A.M.
Weather: Scattered altostratus, broken cirrus, altocumulus distant SW-NNE
Temperature: 43F Dew Point: 36F; Wind: SW at 7 kts,
Sea-level pressure: 29.91 ins. Hg, falling then rising
Visibility: 30 miles, distant haze
BHO SA 1455 150 SCT E240 BKN 30 130/43/36/2307/991/ AC DSNT SW-NNE DSNT HZ/
8/078 53006
1 P.M.
Weather: Broken altostratus, broken altocumulus, broken cirrus, few
cirrocumulus N and SW
Temperature: 53F; Dew Point: 34F; Wind: W at 11 kts,
Wind: Direction variable WSW-NW
Sea-level pressure: 29.90 ins. Hg, rising then falling
Visibility: 35 miles, distant haze
6-hr max. temp: 53F
BHO SA 1755 80 SCT E130 BKN 240 BKN 35 124/53/34/2811/990/ FEW CC N AND SW
DSNT HZ WND 25V32/ 8/078 58006 10053 20039
WEATHER SUMMARY FOR SATURDAY, FEBRUARY 1, 2014
TEMPERATURE (DEGREES F)
MAX…..45 NORMAL…..34
MIN…..30 NORMAL…..17
MEAN….38 NORMAL…..26
DEPARTURE FROM 30-YEAR NORMAL…………………….+12
TOTAL DEPARTURE FOR THE MONTH……………………+12 [+12.0 DEGREE/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..27 DEPARTURE………-12
TOTAL HEATING UNITS FOR THE MONTH…………..27 DEPARTURE………-12
TOTAL HEATING UNITS FOR THE SEASON………..3544 DEPARTURE………-26
TOTAL HEATING UNITS LAST SEASON TO DATE……3165 DIFFERENCE…….+379
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………24 S AT 9:19 P.M.
AERO…………………..23 S AT 9:19 P.M.
ASOS…………………..26 S AT 4:38 P.M.
DAVIS………………….23 S AT 4:42 P.M. RMY 25
FASTEST MILE FOR YESTERDAY………………..19 S AT 11:14 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20 S AT 11:03 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18 S AT 11:11 P.M.
AVERAGE WIND SPEED AND DIRECTION………… 10.3 S
ASOS………………….10.4
DAVIS………………….9.3 SSW [208 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE…………..-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.00 DEPARTURE………….-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE YEAR………..4.62 DEPARTURE………….+0.14
ASOS…………..4.94
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……..0.0 DEPARTURE……………-0.5
TOTAL SNOWFALL FOR THE MONTH…………..0.0 DEPARTURE…………..-0.5
TOTAL SNOWFALL FOR THE SEASON…………48.8 DEPARTURE………….+15.2
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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
1/1 26/16/21/-6/0.00/0.0/505/92 25 W AERO 25 MPH W RMY 27
1/2 24/00/12/-15/0.97/10.9/000/00 39 NNE AERO 39 MPH NNE RMY 39
1/3 12/-3/05/-21/0.38/4.7/270/49 36 N AERO 39 MPH N RMY 34
1/4 25/-4/11/-15/0.00/0.0/545/99 35 SSW AERO 37 MPH SSW RMY 38
1/5 42/23/33/+7/0.08/0.0/259 47 30 SE AERO 32 MPH SE RMY 42
1/6 57/25/41/+15/0.29/0.0/006/01 41 S AERO 46 MPH S RMY 48
1/7 25/06/16/-10/0.00/0.0/555/100 44 WNW AERO 46 MPH WNW RMY 42
1/8 21/3/12/-14/0.00/0.0/550/99 28 WSW AERO 29 MPH WSW RMY N/A
1/9 28/13/21/-5/0.00/0.0/540/97 23 WNW AERO 24 MPH WNW RMY 27
1/10 37/17/27/+2/0.05/0.3/000/00 17 SSW AERO 18 MPH SW RMY N/A
1/11 57/37/47/+22/0.67/0.0/000/00 50 S AERO 59 MPH S RMY 59
1/12 51/32/42/+17/0.04/0.0/292/52 41 W AERO 44 MPH W RMY 42
1/13 50/30/40/+15/0.00/0.0/473/84 33 S AERO 36 MPH S RMY 37
1/14 49/41/45/+20/0.83/0.0/000/00 35 S AERO 37 MPH S RMY 32
1/15 46/33/40/+15/0.00/0.0/374/66 24 W AERO 23 MPH W RMY N/A
1/16 40/34/37/+12/0.00/0.0/000/00 14 ENE AERO 13 MPH ENE RMY 14
1/17 44/33/39/+14/0.00/0.0/541/95 21 SW AERO 21 MPH SW RMY 22
1/18 37/30/34/+9/0.82/4.2/000/00 18 E AERO 17 MPH E RMY 18
1/19 32/27/30/+5/0.03/0.5/304/53 28 SW AERO 35 MPH SW RMY 34
1/20 39/23/31/+6/0.00/0.0/023/04 38 W AERO 41 MPH W RMY 42
1/21 23/8/16/-9/0.30/9.0/006/01 29 WNW AERO 30 MPH WNW RMY 32
1/22 15/3/9/-16/0.12/3.1/237/41 36 N AERO 35 MPH N RMY 34
1/23 20/-1/10/-15/0.00/0.0/418/72 30 W AERO 29 MPH W RMY 30
1/24 16/2/9/-16/0.00/0.0/571/98 28 WNW AERO 25 MPH WNW RMY N/A
1/25 36/12/24/-1/0.01/0.2/053/09 60 SSW AERO 66 MPH SSW RMY 64
1/26 22/12/17/-8/0.00/0.0/405/69 45 W AERO 43 MPH W RMY 41
1/27 45/17/31/+6/0.02/0.0/024/04 46 S AERO 46 MPH S RMY 49
1/28 18/9/14/-11/0.00/0.0/…/.. 33 W AERO 31 MPH W RMY 32
1/29 24/11/17/-8/0.01/0.2/…/.. 28 W AERO 23 MPH W RMY 27
1/30 29/10/20/-6/0.00/0.0/…/.. 25 S AERO 20 MPH S RMY 28
1/31 40/18/29/+3/0.00/0.0/…/.. 29 SSW AERO 24 MPH SSW RMY 28
2/1 45/30/38/+12/0.00/0.0/…/.. 24 S AERO 23 MPH S RMY 25
2/2 morning low temp: 33F; the normal low is now 17F
DAILY RECORDS FOR JANUARY 2014
1/21 – New record daily snowfall of 9.0 ins.; this surpasses
7.6 ins. in 2011.
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 2
HIGH 55F IN 1951, 1973
LOW -12F IN 1961
PRECIP 1.91 INS. IN 1999
SNOWFALL 5.5 INS. IN 1916, 1934
PEAK GUST 92 MPH SW IN 1970
RECORDS FOR FEBRUARY 3
HIGH 58F IN 1991
LOW -7F IN 1955
PRECIP 2.14 INS. IN 1970
SNOWFALL 7.0 INS. IN 1913
PEAK GUST 102 MPH S IN 1970 [RECORD FOR MONTH]
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
