Tuesday, January 14, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JANUARY 14, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

YESTERDAY’S CALM GIVES WAY TO TODAY’S FOG AND RAIN.

By 1 P.M. this afternoon 0.06 inches of new rain had fallen since
beginning before 7 A.M. with more expected later this afternoon. Yesterday’s
average temperature of 40 added another 15 degrees of warmth to this month’s
departure which is now only two degrees above normal for the month of January.

Today’s Observations:

7 A.M.
Weather: Showers in the vicinity, scattered altocumulus lenticularis,
scattered altostratus, overcast nimbostratus.
Temperature: 47F; Dew Point: 43F; Wind: SSE at 14G20 kts
Sea-level pressure: 29.85 ins. Hg, increasing, then steady
Visibility: 15 miles
6-hr. min temp: 47F
BHO SA 1155 50 SCT 80 SCT E100 OVC 15 107/47/43/1514G20/985/ SHWRS VCNTY W-NNE
VSBY NNE-SSE 30 MI THN FG ALQDS/ 8/02/ 55003 MANUAL 60000 10049 20047

10 A.M.
Weather: Light rain, few cumulus fractus, broken altostratus,
overcast nimbostratus.
Temperature: 45F; Dew Point: 43F; Wind: SSE at 15G23 kts,
Sea-level pressure: 29.85 ins. Hg, increasing, then decreasing
Visibility: 15 miles, 10 miles SSE-NW
BHO SA 1455 E42 BKN 60 OVC 15R- 108/45/43/1615G23/985/ VSBY SSE-NW 10 MI
FEW CUFRA NW THN FG ALQDS/ 8/12/ 50001

1 P.M.
Weather: Light rain, fog
Temperature: 47F; Dew Point: 47F; Wind: S at 8 kts,
Sea-level pressure: 29.75 ins. Hg, decreasing, then more slowly
Visibility: 1/8 of a mile, 1/2 mile SSW
6-hr max. temp: 47F
6-hr rainfall: 0.06 inch
BHO SA 1755 W3 X 1/8R- 076/47/47/1808/975/ VSBY SSW 1/2 MI/ 8//// 56032
ASOS 60007 MANUAL 60006 10047 20045

WEATHER SUMMARY FOR MONDAY, JANUARY 13, 2014

TEMPERATURE (DEGREES F)
MAX…..50    NORMAL…..34
MIN…..30    NORMAL…..17
MEAN….40    NORMAL…..25

DEPARTURE FROM 30-YEAR NORMAL…………………..+15
TOTAL DEPARTURE FOR THE MONTH…………………..-14 [-1.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..25  DEPARTURE………-15
TOTAL HEATING UNITS FOR THE MONTH………….523  DEPARTURE………+15
TOTAL HEATING UNITS FOR THE SEASON………..2800  DEPARTURE………-12
TOTAL HEATING UNITS LAST SEASON TO DATE……2451  DIFFERENCE…….+349

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………33 S    AT   11:45 P.M.
AERO…………………..36 S    AT   11:11 P.M.
ASOS…………………..37 S    AT   11:47 P.M.
DAVIS………………….35 S    AT   11:47 P.M. RMY 37
FASTEST MILE FOR YESTERDAY………………..27 S    AT   11:56 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..26 S    AT   11:53 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….26 S    AT    5:13 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..16.5 S
ASOS………………….17.2
DAVIS…………………15.2 SSW [210 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE………….-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.48  DEPARTURE………….+0.63
ASOS…………..2.86
TOTAL PRECIPITATION FOR THE YEAR………..2.48  DEPARTURE………….+0.63
ASOS…………..2.86

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……..0.0    DEPARTURE…………..-0.5
TOTAL SNOWFALL FOR THE MONTH………….15.9    DEPARTURE…………..+8.6
TOTAL SNOWFALL FOR THE SEASON…………31.6    DEPARTURE…………..+8.3

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/…./../000/00          39 NNE AERO 39 MPH NNE RMY 39
1/3  12/-3/05/-21/…/../270/49           36 N   AERO 39 MPH N   RMY 34
1/4  25/-4/11/-15/…./../545/99          35 SSW AERO 37 MPH SSW RMY 38
1/5  42/23/33/+07/…./../259 47          30 SE  AERO 32 MPH SE  RMY 42
1/6  57/25/41/+15/…./../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/…/..          23 WNW AERO 24 MPH WNW RMY 27
1/10 37/17/27/+2/…./0.3/000/00          17 SSW AERO 18 MPH SW  RMY N/A
1/11 57/37/47/+22/…./0.0/000/00         50 S   AERO 59 MPH S   RMY 59
1/12 51/32/42/+17/0.00/0.0/…/..         41 W   AERO 44 MPH W   RMY 42
1/13 50/30/40/+15/0.00/0.0/…/..         33 S   AERO 36 MPH S   RMY 37

1/14 morning low temp: 43F; the normal low is now 17F

DAILY RECORDS FOR JANUARY 2014
None so far.

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

RECORDS FOR JANUARY 14
HIGH 65F IN 1995
LOW -12F IN 1914
PRECIP 1.45 INS. IN 2008
SNOWFALL 10.3 INS. IN 2008
PEAK GUST 68 MPH WNW IN 1976, S IN 2005

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

TODAY’S REPORT PREPARED BY: Brian Fitzgerald