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Friday, January 15, 2016

January 15, 2016

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, JANUARY…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, JANUARY 15, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS MOVE IN, TEMPERATURES MODERATE AFTER CONSECUTIVE
DAYS OF SLIGHTLY BELOW NORMAL TEMPERATURES

Following two consecutive days of near normal cold, temperatures
have been on the rise since this morning’s overnight low
of 23F. Clouds have moved in overnight as well, with overcast
conditions this morning and limited visibility from thin fog
in all directions.

By this afternoon’s 1:00 PM EST observation skies were overcast
once more after some periods of partial sunshine this morning.
Temperatures and dew points had crept up through the morning
reaching a maximum of 36F and 23F respectively.

Today’s Observations:

7 A.M.
Weather: Broken stratocumulus, overcast altostratus
Temperature: 28F; Dew Point: 17F; Wind: estimated SSE at 3 kts
Wind Speed: Light
Sea-level pressure: 30.02 ins. Hg, rising, then more slowly
Visibility: 20 miles, except 40 miles ENE-SSW, thin fog
6-hr Max temp: 28F
6-hr Min temp: 25F
24-hr precip: Trace
24-hr snowfall: Trace
Snow depth: 1 ins.
BHO SA 1155 E50 BKN 140 OVC 20 165/28/17/E1603/002/
VSBY ENE-SSW 40 MI THN FG ALQDS NEW SNW PST 24 HRS
TRACE WND LGT/ 8/51/ 51009 10028 20025

10 A.M.
Weather: Broken altocumulus, overcast altostratus
Temperature: 30F; Dew Point: 20F; Wind: ESE at 6 kts
Wind Speed: Light
Sea-level pressure: 30.03 ins. Hg, rising, then steady
Visibility: 30 miles, except 20 miles NNW-NE, thin fog, hazy
BHO SA 1455 E50 BKN 140 OVC 30 169/30/20/E1206/003/
VSBY NNW-NE 20 MI THN FG ALQDS HAZY WND LGT/ 8/51/ 51004

1 P.M.
Weather: Overcast stratocumulus
Temperature: 35F; Dew Point: 25F; Wind: estimated SE at 5 kts
Wind Speed: Light
Sea-level pressure: 29.97 ins. Hg, falling, then more slowly
Visibility: 30 miles, except 40 miles SSE-S, thin fog in
all directions, hazy
6-hr Max temp: 36F
6-hr Min temp: 27F
BHO SA 1755 E60 OVC 30 148/35/25/E1405/997/ VSBY SSE-S 40 MI
THN FG ALQDS HAZY WND LGT/ 8/5// 56021 10036 20027

SUMMARY FOR THURSDAY, JANUARY 14, 2016

TEMPERATURE (DEGREES F)
MAX…..28   NORMAL…..33
MIN…..17   NORMAL…..17
MEAN….23   NORMAL…..25

DEPARTURE FROM 30-YEAR NORMAL……………………-2
TOTAL DEPARTURE FOR THE MONTH…………………..+65 [+4.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..42   DEPARTURE……….+2
TOTAL HEATING UNITS FOR THE MONTH………….484   DEPARTURE………-64
TOTAL HEATING UNITS FOR THE SEASON………..2140   DEPARTURE……..-712
TOTAL HEATING UNITS LAST SEASON TO DATE……2650   DIFFERENCE…….-510

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….26  W   AT   4:16 P.M.*
ASOS……………………26  W   AT   4:16 P.M.
DAVIS…………………..26  W   AT   4:16 P.M. RMY 25
FASTEST MILE FOR YESTERDAY…………………20  W   AT   3:37 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………20  W   AT   3:37 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..17  W   AT   3:36 P.M.
AVERAGE WIND SPEED AND DIRECTION……………10.5 W
ASOS……………………10.4
DAVIS……………………9.2 W [264 Deg.] *last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…TRACE  DEPARTURE……-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.75  DEPARTURE……-0.24
ASOS…………..1.87
TOTAL PRECIPITATION FOR THE YEAR………..1.75  DEPARTURE……-0.24
ASOS…………..1.87

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……..TRACE  DEPARTURE…….-0.6
TOTAL SNOWFALL FOR THE MONTH…………….2.6  DEPARTURE…….-5.3
TOTAL SNOWFALL FOR THE SEASON……………3.9  DEPARTURE……-20.0

PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

1/1   37/29/33/+6/0.00/0.0/005/01           29 W               RMY 29
1/2   37/27/32/+5/0.00/0.0/461/84           31 W               RMY N/A
1/3   41/27/34/+8/0.00/0.0/501/91           28 W               RMY 29
1/4   30/10/20/-6/T/T/000/00                29 NNW             RMY 29
1/5   23/4/14/-12/0.00/0.0/552/100          28 NNW             RMY N/A
1/6   43/17/30/+4/0.00/0.0/553/100          24 SW              RMY 24
1/7   43/25/34/+8/0.00/0.0/521/94           21 SW              RMY N/A
1/8   40/28/34/+8/T/0.0/…/..              28 E   AERO 25 ENE RMY 25
1/9   39/36/38/+12/T/0.0/…/..             21 ENE AERO 20 ENE RMY N/A
1/10  58/38/48/+23/1.55/0.0/000/00          53 SSE AERO 55 SSE RMY 53
1/11  48/21/35/+10/0.00/0.0/…/..          43 W   AERO 45 WSW RMY N/A
1/12  35/19/27/+2/…./…/…/..           30 SE  AERO N/A    RMY N/A
1/13  30/17/24/-1/…./…/…/..           50 W   AERO 58 W   RMY 54
1/14  28/17/23/-2/T/T/…/..                26 W   AERO N/A    RMY 25

1/15  low since midnight is 23F; normal low is now 17F

DAILY RECORDS FOR JANUARY 2016

**1/10/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 58F, BREAKS
PREVIOUS RECORD OF 54F SET BACK IN 2000**

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR JANUARY 15
HIGH 64F IN 1995
LOW -16F IN 1957 [RECORD FOR MONTH] PRECIP 2.63 INS. IN 1958
SNOWFALL 8.8 INS. IN 1983
PEAK GUST 69e MPH SE IN 1940

RECORDS FOR JANUARY 16
HIGH 63F IN 1995
LOW -12F IN 2004
PRECIP 1.32 INS. IN 1936
SNOWFALL 14.0 INS. IN 1965
PEAK GUST 79 MPH WNW IN 1960

TODAY’S REPORT PREPARED BY: Brian Fitzgerald

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

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§ 04

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§ 05

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