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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 4, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

PARTLY CLOUDY WITH A STRONG WESTERLY WIND AND
INCREASING VISIBILITY....

Today we observed partly cloudy conditions, clearing 
up following noontime. This may be due to the steady 
pressure increase since the early morning hours. 
Visibility was limited to 25 miles earlier on due 
to a distant haze, but has since increased to 70 miles. 
Wind is strong today, with frequent gusts topping 50 mph. 
The highest gust seen today is 57 mph. 

Yesterdays' low temperature is 45 degrees, which is
a new record high minimum for the date. The previous 
record is 41 degrees in 1921. Yesterdays' high reached 
64 degrees, this ties the record high for the date, 
previously set in 1991.

The high so far today is 47F degrees, this is 6 degrees 
above the normal high of 41F. The low since midnight is 41F,
18 degrees above the normal low of 23F.

Last month is tied for the 2nd Lowest February Snowfall:

BHO Lowest February Snowfall, inches (1885-2020):

1) 0.4 in 1937
2) 0.6 in 1984
   0.6 in 2020
4) 1.0 in 1925
   1.0 in 1998
6) 1.5 in 1941
7) 1.8 in 1912
   1.8 in 1954


Today's Observations:

7 A.M.
Weather: Scattered cumulus
Temperature: 41F; Dew Point: 32F; Relative Humidity: 69%
Wind: W at 15G22 kts, Peak wind: 37 MPH (32 kts) WSW at 
6:56 A.M.
Sea-level pressure: 29.49 ins. Hg: rising rapidly
Visibility: 25 miles, distant haze
6-hr Max temp: 47F
6-hr Min temp: 41F
24-hr Precip:  0.09 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 45 SCT 25 989/41/32/2615G22/949/ DSNT HZ ALQDS PK 
WND 2532/56/ 8/100 70009 51041 10047 20041

10 A.M.
Weather: Broken cumulus
Temperature: 44F; Dew Point: 28F; Relative Humidity: 53%
Wind: W at 20G32 kts, Peak wind: 44 MPH (38 kts) W at
9:32 A.M.
Sea-level pressure: 29.57 ins. Hg: rising steadily
Visibility: 30 miles, distant haze
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E55 BKN 30 015/44/28/2620G32/957/ DSNT HZ ALQDS 
PK WND 2538/32/ 8/100 51026

1 P.M.
Weather: Broken stratocumulus
Temperature: 46F; Dew Point: 22F; Relative Humidity: 38%
Wind: W at 22G38 kts, Peak wind: 51 MPH (44 kts) WSW at 
11:54 A.M. 
Sea-level pressure: 29.58 ins. Hg: rising then falling 
Visibility: 60 miles
6-hr Max temp: 47F
6-hr Min temp: 41F
6-hr Precip:  0.00 ins. 
6-hr Snowfall: 0.0 ins.
BHO SA 1755 E55 BKN 60 016/46/22/2722G38/958/ PK WND 2544/1654/ 
8/400 50001 10047 20041


SUMMARY FOR TUESDAY, MARCH 3, 2020 

TEMPERATURE (DEGREES F)
MAX.....64   NORMAL.....41
MIN.....45   NORMAL.....23
MEAN....55   NORMAL.....32

DEPARTURE FROM 30-YEAR NORMAL...................+23
TOTAL DEPARTURE FOR THE MONTH...................+23 [+7.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............10  DEPARTURE.......-23
TOTAL HEATING UNITS FOR THE MONTH...............78  DEPARTURE.......-23
TOTAL HEATING UNITS FOR THE SEASON............4218  DEPARTURE......-457
TOTAL HEATING UNITS LAST SEASON TO DATE.......4590  DEPARTURE......-372

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY....................30 S   AT  5:57 P.M.  
                   AERO.........................30 S   AT 10:18 P.M.   
                   ASOS.........................31 S   AT 10:15 P.M. 
                   DAVIS........................30 S   AT 10:22 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY......................22 S   AT  4:48 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...................23 S   AT  5:57 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..................22 S   AT  4:48 P.M.
AVERAGE WIND SPEED AND DIRECTION..............13.2 S                
                   ASOS.......................13.9
                   DAVIS......................12.6 SSW [202 deg.]


PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.09  DEPARTURE......-0.08
                         ASOS..............0.11
TOTAL PRECIPITATION FOR THE MONTH..........0.09  DEPARTURE......-0.43
                         ASOS..............0.11
TOTAL PRECIPITATION FOR THE YEAR...........4.75  DEPARTURE......-4.19
                         ASOS..............5.02

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0  DEPARTURE.......-0.5
TOTAL SNOWFALL FOR THE MONTH..............TRACE  DEPARTURE.......-1.5
TOTAL SNOWFALL FOR THE SEASON..............24.8  DEPARTURE......-23.7


PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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

02/01  38/30/34/+8/0.01/T/000/00           14 WSW AERO 14 WSW RMY N/A
02/02  40/30/35/+9/0.00/0.0/078/13         18 W   AERO 18 WNW RMY 18
02/03  44/27/36/+10/0.00/0.0/260/43        28 W   AERO 28 W   RMY 28
02/04  44/33/39/+13/0.00/0.0/055/09        19 E   AERO 16 E   RMY 18
02/05  41/30/36/+10/0.00/0.0/000/00        20 NNW AERO 19 NNW RMY N/A
02/06  31/30/34/+8/0.00/0.0/000/00         29 E   AERO 28 E   RMY 27
02/07  53/25/39/+12/..../0.1/000/00        71 WSW AERO 71 SSW RMY 73
02/08  33/20/27/0/T/T/616/100              46 W   AERO 44 W   RMY 44
02/09  33/15/24/-3/T/T/303/49              30 SSE AERO 29 SSE RMY N/A
02/10  42/33/38/+11/..../0.0/000/00        39 SSW AERO 39 SSW RMY 39
02/11  40/36/38/+11/..../0.0/000/00        24 W   AERO 23 W   RMY N/A
02/12  41/30/36/+9/0.00/0.0/314/50         37 W   AERO 36 W   RMY N/A
02/13  35/31/34/+6/..../0.5/000/00         29 SSW AERO 29 SSW RMY N/A
02/14  33/8/21/-7/0.00/0.0/506/80          32 WNW AERO 32 NW  RMY 34
02/15  27/4/16/-12/0.00/0.0/508/80         31 SSW AERO 31 SSW RMY N/A
02/16  40/23/32/+4/0.00/0.0/006/01         38 SW  AERO 38 SW  RMY N/A
02/17  44/28/36/+8/0.00/0.0/582/91         25 WNW AERO 24 WNW RMY 24
02/18  37/27/32/+3/0.31/T/000/00           26 SE  AERO 26 SE  RMY N/A
02/19  42/25/34/+5/0.00/0.0/530/82         45 W   AERO 46 W   RMY 44
02/20  31/18/25/-4/0.00/0.0/389/60         32 W   AERO 32 W   RMY N/A
02/21  30/11/21/-8/0.00/0.0/651/100        24 NNW AERO 21 N   RMY N/A
02/22  44/23/34/+5/0.00/0.0/647/99         26 W   AERO 24 W   RMY 27
02/23  53/30/42/+12/0.00/0.0/636/97        21 SW  AERO 22 WSW RMY 23
02/24  60/32/46/+16/0.00/0.0/606/92        29 S   AERO 29 SSW RMY 31
02/25  53/40/47/+17/..../0.0/033/05        17 NE  AERO 18 ENE RMY 17
02/26  45/39/42/+12/.../0.0/007/01         23 ENE AERO 24 E   RMY N/A
02/27  49/27/38/+7/0.00/0.0/..../..        51 W   AERO 53 W   RMY 52
02/28  36/25/31/0/0.00/0.0/..../...        38 SW  AERO 38 SW  RMY 36
02/29  35/19/27/-4/0.00/0.0/..../..        32 W   AERO 32 W   RMY 34


PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

03/01  33/15/24/-7/0.00/0.0/..../..        28 WNW AERO 28 WNW RMY 27
03/02  52/24/38/+7/T/T/..../..             40 S   AERO 39 S   RMY 41
03/03  64/45/55/+23/..../.../.../..        30 S   AERO 30 S   RMY N/A

03/04 The low since midnight is 41F, daily normal minimum is 23F 


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

RECORDS FOR MARCH 4 
HIGH 69 IN 1974 
LOW -5 IN 1950
PRECIP 1.80 IN 1960
SNOWFALL 17.3 IN 1960 
PEAK GUST 81e MPH SSW IN 1971

RECORDS FOR MARCH 5
HIGH 64 IN 1979
LOW -2 IN 1948
PRECIP 1.76 INS. IN 2001
SNOWFALL 13.0 INS. IN 1891
PEAK GUST 76e MPH WNW IN 1971

TODAY'S REPORT PREPARED BY: Benjamin Turner and Greg White