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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, JANUARY 16, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
WARMTH AND RAIN GIVE WAY TO COLD AND SNOW
The rain that started very early this morning came down moderately
for a time. Over an inch of rain had fallen before the
precipitation mixed with and then changed over to snow and sleet.
No measurable accumulation was recorded.
By this afternoon’s 1:00 PM EST observation skies were overcast
once more after the rain and snow this morning. Temperatures and
dew points had crept up from their lows and were at 35 with 100%
humidity.
Today’s Observations:
7 A.M.
Weather: Light Rain and Dense Fog
Temperature: 36F; Dew Point: 36F; Wind: N at 11 kts
Sea-level pressure: 29.31 ins. Hg, falling then more rapidly
Visibility: 1/16 miles, Fog
6-hr Max temp: 41F
6-hr Min temp: 36F
24-hr precip: 0.50
Snow depth: Trace
BHO SA 1155 W2 X 1/16R-F 927/36/36/3511/931/ 58052 60050
ASOS 70050 MANUAL 70050 10041 20036
10 A.M.
Weather: Few Stratus, Overcast Nimbostratus, Moderate Rain
Temperature: 37F; Dew Point: 37F; Wind: N at 13G23 kts
Sea-level pressure: 29.33 ins. Hg, decreasing then rising
Visibility: 1 mile Variable, 1/2 to 1 and 1/2 miles, fog
3-hr precip:0.43
BHO SA 1455 -X E3 OVC 1VRF 932/37/37/0113G23/933/ F4 STRA
DRFTG OVR SMT VSBY 1/2V11/2/ 8/62/ 53005 ASOS 60044 MANUAL 60043
1 P.M.
Weather: Few Stratus Fractus below the summit, overcast Altostratus
Temperature: 35F; Dew Point: 35F; Wind: N at 9 kts
Sea-level pressure: 29.40 ins. Hg, rising then falling
Visibility: 25 miles, except 50 miles SSE-SW, 30 WSW, 20 W-NW
30 NNW, 10 N-NNE, 20 NE, 15 ENE-SSE, Vrb lgt fog all directions
6-hr Max temp: 37F
6-hr Min temp: 32F
6-hr precip:0.53
6-hr snow fall: TRACE
BHO SA 1755 E9 OVC 25 956/35/35/3409/940/ FEW STFRA BLO SMT N-NE
SUN BRFLY DMLY VSBL VSBY 50 SSE-SW 30 WSW 20 W-NW 30 NNW 10 N-NNE
20 NE 15 ENE-SSE/ 8/72/ 51024 ASOS 60055 MANUAL 60053 10037 20032
SUMMARY FOR FRIDAY, JANUARY 15, 2016
TEMPERATURE (DEGREES F)
MAX…..40 NORMAL…..33
MIN…..23 NORMAL…..17
MEAN….32 NORMAL…..25
DEPARTURE FROM 30-YEAR NORMAL……………………+7
TOTAL DEPARTURE FOR THE MONTH…………………..+72 [+4.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..33 DEPARTURE……….-7
TOTAL HEATING UNITS FOR THE MONTH………….517 DEPARTURE………-70
TOTAL HEATING UNITS FOR THE SEASON………..2173 DEPARTURE……..-719
TOTAL HEATING UNITS LAST SEASON TO DATE……2691 DIFFERENCE…….-518
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….26 ESE AT 9:10 P.M.
ASOS……………………24 E AT 9:10 P.M.
DAVIS…………………..22 ESE AT 9:57 P.M. RMY 23
FASTEST MILE FOR YESTERDAY…………………19 ESE AT 9:12 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………18 E AT 9:23 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..18 ESE AT 9:59 P.M.
AVERAGE WIND SPEED AND DIRECTION……………8.6 ESE
ASOS……………………8.9
DAVIS…………………..7.8 ESE [123 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.50 DEPARTURE……0.35
ASOS…………..0.50
TOTAL PRECIPITATION FOR THE MONTH……….2.25 DEPARTURE……0.11
ASOS…………..2.37
TOTAL PRECIPITATION FOR THE YEAR………..2.25 DEPARTURE……0.11
ASOS…………..2.37
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….-0.6
TOTAL SNOWFALL FOR THE MONTH…………….2.6 DEPARTURE…….-5.9
TOTAL SNOWFALL FOR THE SEASON……………3.9 DEPARTURE……-20.6
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 40/23/32/+7/0.00/0.0/…/.. 26 ESE AERO 25 ESE RMY 23
1/16 low since midnight is 32F; 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 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
RECORDS FOR JANUARY 17
HIGH 55F IN 1973,1995
LOW -8F IN 1907,1982
PRECIP 1.43 INS. IN 1956
SNOWFALL 13.4 INS. IN 1956
PEAK GUST 62 MPH S IN 1994
TODAY’S REPORT PREPARED BY: Robert Millette / Mike Iacono
