Wednesday, January 25, 2017
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JANUARY 25, 2017
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNNY SKIES AND DRYING CONDITIONS
Today has been a mild winter day as temperatures reach
40F and dew points remain in the upper 20’s. Winds
continue to gust above 30 MPH out of the WNW. Visibility
improved to 70 miles this afternoon after distant morning
fog cleared.
Light drizzle and rain continued last evening, totalling
0.45 in. from 7:00AM yesterday to 7:00AM today. One last
brief rain shower passed around 7:30AM giving just a trace
of precip. for today.
Today’s Observations:
7 A.M.
Weather: Few cumulus in all directions, broken altocumulus
Temperature: 33F; Dew Point: 29F; Wind: WNW at 15G24 kts
Sea-level pressure: 29.42 ins. Hg, rising, then more quickly
Visibility: 40 miles, distant fog in all directions
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr precip: 0.45 in.
24-hr snowfall: 0.00 in.
BHO SA 1155 E100 BKN 40 963/33/29/3015G24/942/ FEW CU ALQDS
DSNT FG ALQDS/ 8/190 53029 MANUAL 70045 ASOS 70048 10036 20033
10 A.M.
Weather: Scattered cumulus, scattered altocumulus
Temperature: 34F; Dew Point: 28F; Wind: WNW at 17G34 kts,
Peak Wind: 34 kts (39 mph) WNW at 9:46 A.M.
Sea-level pressure: 29.49 ins. Hg, rising, then less quickly
Visibility: 70 miles
3-hr precip: Trace
3-hr snowfall: 0.0 in.
BHO SA 1455 29 SCT 100 SCT 70 987/34/28/3017G34/949/
PK WND 3034/46/ 8/180 51024 MANUAL 600//
1 P.M.
Weather: Scattered cumulus, few altocumulus NNW-ESE
Temperature: 40F; Dew Point: 28F; Wind: WNW at 15G21 kts,
Peak Wind: 32 kts (37 mph) WNW at 12:15 P.M.
Sea-level pressure: 29.42 ins. Hg, falling, then steady
Visibility: 70 miles
6-hr Max temp: 40F
6-hr Min temp: 32F
6-hr precip: Trace
6-hr snowfall: 0.0 in.
BHO SA 1755 29 SCT 70 963/40/28/2915G21/942/ FEW AC NNW-ESE
PK WND 2932/15/ 8/130 53000 MANUAL 600// 10040 20032
SUMMARY FOR TUESDAY, JANUARY 24, 2017
TEMPERATURE (DEGREES F)
MAX…..40 NORMAL…..34
MIN…..32 NORMAL…..17
MEAN….36 NORMAL…..25
DEPARTURE FROM 30-YEAR NORMAL…………………..+11
TOTAL DEPARTURE FOR THE MONTH………………….+175 [+7.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..29 DEPARTURE………-11
TOTAL HEATING UNITS FOR THE MONTH………….774 DEPARTURE……..-175
TOTAL HEATING UNITS FOR THE SEASON………..2806 DEPARTURE……..-447
TOTAL HEATING UNITS LAST SEASON TO DATE……2537 DIFFERENCE…….+269
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….62 NE AT 3:43 A.M.
ASOS……………………61 NE AT 5:04 A.M.
DAVIS…………………..57 ENE AT 5:03 A.M. RMY 60
FASTEST MILE FOR YESTERDAY…………………42 NE AT 4:48 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………40 NE AT 4:49 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..39 ENE AT 4:49 A.M.
AVERAGE WIND SPEED AND DIRECTION………….26.0 NE
ASOS………………….24.1
DAVIS…………………22.7 NE [050 deg.]
*last of multiple occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.45 DEPARTURE……+0.31
ASOS…………..0.48
TOTAL PRECIPITATION FOR THE MONTH……….5.29 DEPARTURE……+1.89
ASOS…………..5.64
TOTAL PRECIPITATION FOR THE YEAR………..5.29 DEPARTURE……+1.89
ASOS…………..5.64
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH……………11.5 DEPARTURE…….-1.8
TOTAL SNOWFALL FOR THE SEASON…………..19.3 DEPARTURE……-10.0
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
1/1 41/29/35/+8/0.09/0.0/533/97 35 W AERO 36 W RMY 34
1/2 38/29/34/+7/0.00/0.0/011/02 21 E AERO 20 E RMY N/A
1/3 42/37/40/+14/1.14/0.0/000/00 39 ENE AERO 41 ENE RMY 34
1/4 44/30/37/+11/0.11/T/000/00 41 WNW AERO 46 WNW RMY 45
1/5 30/23/27/+1/0.00/0.0/343/62 37 W AERO 39 W RMY 38
1/6 30/20/25/-1/0.05/1.7/072/13 20 W AERO 20 W RMY N/A
1/7 22/14/18/-8/0.74/9.5/000/00 32 NNW AERO 39 NNW RMY 38
1/8 20/06/13/-13/0.01/T/512/92 26 NNW AERO 29 NNW RMY N/A
1/9 17/04/11/-15/0.00/0.0/335/60 23 SSW AERO 23 SSW RMY 25
1/10 41/14/28/+3/0.18/0.0/…/.. 35 SE AERO 37 SE RMY N/A
1/11 53/40/47/+22/0.13/0.0/…/.. 51 SSW AERO 48 SSW RMY 57
1/12 59/42/51/+26/0.15/0.0/…/.. 37 SSW AERO 40 S RMY 40
1/13 55/23/39/+14/0.00/0.0/…/.. 39 WNW AERO 43 WNW RMY 42
1/14 30/14/22/-3/0.00/0.0/…/.. 20 SSW AERO 20 SSW RMY 22
1/15 35/23/29/+4/0.00/0.0/…/.. 28 NW AERO 28 NW RMY 28
1/16 40/22/31/+6/0.00/0.0/…/.. 28 SW AERO 25 SW RMY 27
1/17 40/29/35/+10/0.27/T/…/.. 23 E AERO 23 E RMY 25
1/18 38/31/30/+10/0.29/T/…/.. 30 ENE AERO 29 ENE RMY 26
1/19 44/30/37/+12/0.00/T/…/.. 21 NNW AERO 20 NNW RMY 20
1/20 40/30/35/+10/T/0.0/…/.. 17 NNW AERO 17 NNW RMY N/A
1/21 54/35/45/+20/T/0.0/…/.. 29 W AERO 29 W RMY 28
1/22 46/36/41/+16/…./T/…/.. 31 ENE AERO 30 ENE RMY N/A
1/23 36/33/35/+10/…./0.3/…/.. 56 NE AERO 58 NE RMY N/A
1/24 40/32/36/+11/…/0.0/…/.. 62 NE AERO 60 NE RMY 60
1/24 Low temp since midnight is 32F; normal low is now 17F
DAILY RECORDS FOR JANUARY 2017
1/12/17: NEW DAILY RECORD HIGH MAXIMUM TEMP. OF 59F,
PREVIOUS RECORD WAS 57F SET 1913 AND TIED IN 1975
1/12/17: NEW DAILY RECORD HIGH MINIMUM TEMP. OF 42F,
PREVIOUS RECORD WAS 40F SET 2006
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JANUARY 25
HIGH 56F IN 2010
LOW -10F IN 1935
PRECIP 2.24 INS. IN 1979
SNOWFALL 12.5 INS. IN 1941
PEAK GUST 81 MPH WNW IN 1972
RECORDS FOR JANUARY 26
HIGH 68F IN 1950 [RECORD FOR MONTH]
LOW -5F IN 1920
PRECIP 1.60 INS. IN 1958
SNOW 9.0 INS. IN 1898
WIND 90e MPH SE IN 1978
TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle and Kaitlin Geagan
