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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, NOVEMBER 22, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

WESTERLY WINDS CONTINUE TO GUST ABOVE 30 MPH

Wind speeds began to decrease from yesterday as peak gusts reached only
28 kts (32 MPH) so far today. The wind direction had shifted to WNW by the
1:00PM observation.  Skies were mostly clear all day with cumulus and
altocumulus spotted during each observation.  Temperatures once again
fell to an overnight low of 28F but were able to warm above 40F in the
afternoon.  Dew points remained in the high-teens and low-20s.  The dry
conditions help to maintain a great visibility today of 70 miles.


7 A.M.
Weather: Few cumulus NW-WSW, few altocumulus in all directions, few
altocumulus standing lenticularis NNE-ENE
Temperature: 28F; Dew Point: 15F; Wind: W at 13G21 kts,
Peak Wind: 28 kts (32 MPH) W at 6:14AM EST
Sea-level pressure: 29.76 ins. Hg, rising, then more quickly
Visibility: 70 miles
6-hr Max temp: 29F
6-hr Min temp: 28F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 70 079/28/15/2813G21/976/ FEW CU NE-WSW FEW AC ALQDS
FEW ACSL NNE-ENE PK WND 2828/14/ 8/140 53021 10029 20028

10 A.M.
Weather: Scattered cumulus, few altocumulus in all directions
Temperature: 34F; Dew Point: 22F; Wind: W at 16G26 kts,
Peak Wind: 27 kts (31 MPH) W at 9:28AM EST
Sea-level pressure: 29.86 ins. Hg, rising, then less quickly
Visibility: 70 miles
BHO SA 1455 54 SCT 70 111/34/22/2816G26/986/ FEW AC ALQDS PK WND 2827/28/
8/130 51032

1 P.M.
Weather: Few cumulus in all directions
Temperature: 40F; Dew Point: 19F; Wind: WNW at 16G22 kts,
Peak Wind: 26 kts (30 MPH) W at 12:11PM EST
Sea-level pressure: 29.86 ins. Hg, falling then rising
Visibility: 70 miles
6-hr Max. temp: 41F
6-hr Min. temp: 28F
BHO SA 1755 CLR 70 113/40/19/2916G22/986/ FEW CU ALQDS PK WND 2726/11/
8/100 53002 10041 20028


SUMMARY FOR MONDAY, NOVEMBER 21, 2016
 
TEMPERATURE (DEGREES F)
MAX.....36   NORMAL.....48
MIN.....28   NORMAL.....32
MEAN....32   NORMAL.....40

DEPARTURE FROM 30-YEAR NORMAL........................-8
TOTAL DEPARTURE FOR THE MONTH.......................+72 [+3.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............33   DEPARTURE..........+8
TOTAL HEATING UNITS FOR THE MONTH.............385   DEPARTURE.........-72
TOTAL HEATING UNITS FOR THE SEASON............806   DEPARTURE........-214
TOTAL HEATING UNITS LAST SEASON TO DATE.......780   DIFFERENCE........+26

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................40 W AT  2:21 P.M. 
                   ASOS........................43 W AT  2:19 P.M.
                   DAVIS.......................44 W AT 12:19 P.M. RMY 44
FASTEST MILE FOR YESTERDAY.....................32 W AT  2:27 P.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE..................31 W AT  2:27 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................28 W AT 12:19 P.M.
AVERAGE WIND SPEED AND DIRECTION.............19.6 W
                   ASOS......................19.1
                   DAVIS.....................16.7 W [260 Deg.]
* Last of several occurrences 

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...TRACE  DEPARTURE......-0.16
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.38  DEPARTURE......-1.93
                         ASOS..............1.44
TOTAL PRECIPITATION FOR THE YEAR..........35.74  DEPARTURE.....-11.34
                         ASOS.............36.14

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........Trace  DEPARTURE.......-0.1
TOTAL SNOWFALL FOR THE MONTH..............Trace  DEPARTURE.......-1.0
TOTAL SNOWFALL FOR THE SEASON.............Trace  DEPARTURE.......-1.3

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
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
M:    Missing data

11/1  55/29/42/-4/0.00/600/97           22 SSE AERO 22 S   RMY N/A
11/2  69/45/57/+11/0.00/425/69          24 SSW AERO 24 S   RMY 26
11/3  65/49/57/+11/0.01/025/04          38 W   AERO 41 W   RMY 38
11/4  56/35/46/+1/0.00/587/96           26 NW  AERO 26 NW  RMY 30
11/5  55/32/44/-1/0.00/250/41           24 W   AERO 23 W   RMY 24
11/6  49/39/44/-1/0.04/091/15           23 N   AERO 23 N   RMY 23
11/7  46/33/40/-5/0.00/423/70           21 N   AERO 21 N   RMY 20
11/8  64/36/50/+6/0.00/590/98           17 W   AERO 15 SSW RMY N/A
11/9  60/43/52/+8/T/090/15              22 NNW AERO 22 NW  RMY N/A
11/10 52/34/43/-1/0.00/507/85           28 SSW AERO 30 SSW RMY 31
11/11 59/35/47/+4/0.00/565/95           39 NW  AERO 44 NW  RMY 45
11/12 47/31/39/-4/0.00/.../..           38 NW  AERO 44 NW  RMY 23    
11/13 59/37/48/+5/0.00/.../..           23 W   AERO 22 W   RMY N/A
11/14 66/44/55/+13/0.00/.../..          24 WSW AERO 22 WSW RMY 25
11/15 57/46/52/+10/1.23/.../..          32 ENE AERO 33 ENE RMY 35
11/16 57/45/51/+9/0.04/.../..           26 W   AERO 25 W   RMY 28
11/17 55/41/48/+7/0.00/.../..           25 WNW AERO 29 NW  RMY 29
11/18 60/38/48/+8/0.00/.../..           21 NNE AERO 22 N   RMY 23
11/19 53/39/46/+5/..../.../..           18 ENE AERO 18 ENE RMY N/A
11/20 46/29/38/-2/..../.../..           37 SW* AERO 40 SW  RMY N/A
11/21 36/28/32/-8/0.00/.../..           40 W   AERO 44 W   RMY 44

11/22 Low temp since midnight is 28F; normal low is now 32F


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

RECORDS FOR NOVEMBER 22
HIGH 70 IN 1931
LOW 12 IN 1987
PRECIP 1.78 INS IN 2005
SNOWFALL 9.0 INS IN 1971
PEAK GUST 70e SE IN 1945

RECORDS FOR NOVEMBER 23
HIGH 73 IN 1931
LOW 9 IN 1888
PRECIP 2.33 INS IN 2006
SNOWFALL 5.5 INS IN 1989
PEAK GUST 64e S IN 1953
 
TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle