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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JANUARY 29, 2018
ALL TIMES ARE IN EASTERN STANDARD TIME
OVERCAST SKIES WITH LITTLE TEMPERATURE FLUCTUATION…
Temperatures have stayed fairly consistent around
35F during each observation toady. We have had a
high of 36F by 1:00 P.M. but temperatures are
falling so this will likely be the high for the day.
This is more seasonable than yesterday’s max of 50F,
which is 16 degrees above the normal of 34F. We also
had a record tying high minimum temperature of 39F,
which was first set back in 1974. This is 22 degrees
above the daily normal of 17F.
Winds from the NNE has picked up this afternoon with
a peak gust of 27 kts (31 MPH) by 1:00 P.M. Skies
remained all day today.
Today’s Observations:
7 A.M.
Weather: Overcast altostratus, break in overcast
WSW-NNE, few altocumulus WNW-ENE
Temperature: 34F; Dew Point: 28F; Wind: NE at 10 kts
Sea-level pressure: 30.27 ins. Hg, steady then rising
Visibility: 35 miles, distant fog in all directions
6-hr Max temp: 38F
6-hr Min temp: 34F
24-hr precip: 0.00 ins.
24-hr snowfall: 0.0 ins.
Snow depth: 0 ins.
BHO SA 1155 E200 OVC 35 252/34/28/0410/027/ FEW AC WNW-ENE
BINOVC WSW-NNE DSNT FG ALQDS/ 8/02/ 53007 10038 20034
10 A.M.
Weather: Overcast altostratus, few cumulus ESE-ENE
Temperature: 36F; Dew Point: 27F; Wind: NE at 12G25 kts
Sea-level pressure: 30.28 ins. Hg, rising then falling
Visibility: 40 miles
3-hr precip: 0.00 ins.
3-hr snowfall: 0.0 ins.
BHO SA 1455 E200 OVC 40 255/36/27/0512G25/028/ FEW CU ESE-ENE
BINOVC WSW-NNW SUN DMLY VSBL/ 8/110 50003
1 P.M.
Weather: Overcast stratus
Temperature: 34F; Dew Point: 30F; Wind: NE at 14G26 kts,
Peak wind: 26 kts (30 MPH) at 12:53 P.M.
Sea-level pressure: 30.22 ins. Hg, falling, then more quickly
Visibility: 60 miles
6-hr Max temp: 36F
6-hr Min temp: 34F
6-hr precip: 0.00 ins.
6-hr snowfall: 0.0 ins.
Snow depth: 0 ins.
BHO SA 1755 E17 OVC 60 234/34/30/0414G26/022/ PK WND 0426/53/
8/6// 58021 10036 20034
SUMMARY FOR SUNDAY, JANUARY 28, 2018
TEMPERATURE (DEGREES F)
MAX…..50 NORMAL…..34
MIN…..39 NORMAL…..17
MEAN….45 NORMAL…..25
DEPARTURE FROM 30-YEAR NORMAL………………………+20
TOTAL DEPARTURE FOR THE MONTH………………………+10 [+0.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY………….20 DEPARTURE………-20
TOTAL HEATING UNITS FOR THE MONTH………..1079 DEPARTURE………-29
TOTAL HEATING UNITS FOR THE SEASON……….3201 DEPARTURE……..-211
TOTAL HEATING UNITS LAST SEASON TO DATE…..2915 DIFFERENCE…….+286
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..36 SSW AT 2:12 A.M.***
AERO…………………….37 SSW AT 1:30 A.M.
ASOS…………………….36 SW AT 1:34 A.M.
DAVIS……………………35 S AT 2:12 A.M.** RMY N/A
FASTEST MILE FOR YESTERDAY………………….26 SW AT 1:31 A.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE……………….26 SSW AT 1:31 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………25 S AT 12:03 A.M.**
AVERAGE WIND SPEED AND DIRECTION…………..11.4 SSW
ASOS…………………..11.2
DAVIS………………….10.2
* Estimated
** Davis direction malfunctioning
*** Last of multiple occurences
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……….5.58 DEPARTURE……+1.64
ASOS…………..6.14
TOTAL PRECIPITATION FOR THE YEAR………..5.58 DEPARTURE……+1.64
ASOS…………..6.14
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……..-0.5
TOTAL SNOWFALL FOR THE MONTH……………19.3 DEPARTURE……..+3.7
TOTAL SNOWFALL FOR THE SEASON…………..28.6 DEPARTURE……..-3.0
PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
M: Missing data
1/01 11/-5/3/-24/0.00/0.0/538/98 30 NW AERO 30 NW RMY 31
1/02 15/-2/7/-20/0.00/0.0/402/73 26 W AERO 25 W RMY 26
1/03 28/11/20/-6/0.00/0.0/430/78 23 WSW AERO 20 WSW RMY N/A
1/04 28/18/23/-3/1.66/16.5/000/00 54 NNW AERO 60 NNW RMY 64
1/05 18/2/10/-16/0.00/0.0/431/78 53 W AERO 53 W RMY 57
1/06 10/-2/4/-22/0.00/0.0/554/100 43 WSW AERO 47 WSW RMY 47
1/07 14/-8/3/-23/0.00/0.0/549/99 37 WNW AERO 35 WNW RMY N/A
1/08 33/14/24/-2/0.02/T/006/01 40 S AERO 40 S RMY 42
1/09 40/25/33/+7/T/T/356/64 37 W AERO 35 W RMY 33
1/10 36/20/28/+3/0.00/0.0/553/99 30 W AERO 30 W RMY N/A
1/11 50/32/41/+16/0.00/0.0/056/10 33 S AERO 32 S RMY 34
1/12 60/45/53/+28/…./0.0/011/02 56 S AERO 56 S RMY 55
1/13 60/17/39/+14/…./0.0/265/47 58 SSW AERO 60 SSW RMY 62
1/14 21/11/16/-9/0.00/0.0/350/62 30 NW AERO 30 NW RMY N/A
1/15 18/11/15/-10/0.02/0.5/000/00 23 NNW AERO 21 N RMY 23
1/16 31/18/25/0/0.00/0.0/153/27 17 SSE AERO 15 SSE RMY N/A
1/17 32/29/31/+6/0.23/2.3/…/00 20 SE AERO 17 SE RMY N/A
1/18 29/16/23/-2/0.00/0.0/…/.. 24 NW AERO 23 NW RMY 26
1/19 34/17/26/+1/0.00/0.0/…/.. 22 SSW AERO 20 SSW RMY N/A
1/20 45/27/36/+11/0.00/0.0/…/.. 38 WSW AERO 37 WSW RMY 39
1/21 47/34/41/+16/0.00/0.0/…/.. 22 W AERO 21 W RMY N/A
1/22 37/34/36/+11/…./0.0/000/00 21 E AERO 16 E RMY N/A
1/23 55/33/44/+19/…./0.0/000/00 53 S AERO 58 S RMY 57
1/24 37/22/30/+5/0.00/0.0/…/.. 36 WNW AERO 35 WNW RMY 36
1/25 29/17/23/-2/0.00/0.0/…/.. 35 WNW AERO 36 WNW RMY 41
1/26 32/15/24-1/0.00/0.0/…/.. 28 WNW AERO 28 WNW RMY N/A
1/27 52/24/38/+13/…/0.0/…/.. 43 SSW AERO 44 SSW RMY N/A
1/28 50/39/45/+20/…./../…/.. 35 SSW AERO 37 SSW RMY N/A
1/28 Low temp since midnight is 34F; normal low is now 17F
DAILY RECORDS FOR JANUARY 2018
01/04/18: NEW DAILY RECORD MAXIMUM SNOWFALL OF 16.5 INS.
PREVIOUS RECORD WAS 8.6 INS. SET IN 1923 AND
TIED IN 1942
01/07/18: NEW DAILY RECORD LOW MINIMUM TEMPERATURE OF
-8F, PREVIOUS RECORD OF -7F WAS SET IN 1896
01/12/18: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF
45F, PREVIOUS RECORD OF 42F WAS SET IN 2017
NEW DAILY RECORD HIGH MAXIMUM TEMPERATURE OF
60F, PREVIOUS RECORD OF 59F WAS SET IN 2017
01/13/18: NEW DAILY RECORD HIGH MAXIMUM TEMPERATURE OF
60F, PREVIOUS RECORD OF 57F WAS SET IN 1890
AND TIED IN 1932
01/28/18: TIED DAILY RECORD HIGH MINIMUM TEMPERATURE OF
39F, PREVIOUS RECORD OF 39F WAS SET IN 1974
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JANUARY 29
HIGH 66F IN 2002
LOW -11F IN 1888
PRECIP 1.48 INS. IN 1973
SNOWFALL 8.0 INS. IN 1943
PEAK GUST 72 MPH NW IN 1973
RECORDS FOR JANUARY 30
HIGH 60F IN 1914
LOW -8F IN 1948
PRECIP 1.12 INS. IN 1925
SNOWFALL 6.5 INS. IN 1986
PEAK GUST 76 MPH WNW IN 1962
TODAY’S REPORT PREPARED BY: Kaitlin Geagan
