Monday, September 22, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, SEPTEMBER 22, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
FRONT CLEARS THE REGION WITH WINDS GUSTING ABOVE
30 MPH, FOLLOWING LAST NIGHT’S BRIEF SHOWER…
FALL EQUINOX OCCURS AT 10:29 PM EDT THIS EVENING…
0.06 inches of new precipitation fell last night between
6:00 and 7:00 PM EST, still falling -0.09 inches below
the daily norm of 0.15 inches. Some areas, including Hingham,
received more than a quarter inch. August 13th of last month
is the last day in which more than a quarter inch has fallen
in a single day at BHO.
Today’s Observations:
7 A.M.
Weather: Clear, few cumulus distant NW, few altocumulus
E-WNW and overhead
Temperature: 61F; Dew Point: 55F; Wind: W at 13 kts,
Sea-level pressure: 29.69 ins. Hg, rising, then more slowly
Visibility: 70 miles, 50 miles WSW-WNW, light distant haze
6-hr max temp: 67F
6-hr min temp: 59F
24-hr precip: 0.06 inch
BHO SA 1155 CLR 70 053/61/55/2713/969/ FEW CU DSNT NW
FEW AC E-WNW AND OVHD VSBY WSW-WNW 50 MI LGT DSNT HZ WSW-WNW/
8/130 51031 ASOS 70005 MANUAL 70006 10067 20059
10 A.M.
Weather: Scattered cumulus
Temperature: 68F; Dew Point: 51F; Wind: W at 20G26 kts,
Peak Wind: W at 28 kts, 09:36 AM EST
Sea-level pressure: 29.74 ins. Hg, rising, then steady
Visibility: 75 miles
BHO SA 1455 34 SCT 75 072/68/51/2820G26/974/
PK WND 2828/36/ 8/100 51019
1 P.M.
Weather: Clear, few cumulus in all directions
Temperature: 71F; Dew Point: 45F; Wind: WNW at 19G26 kts,
Peak Wind: WNW @ 26 kts, 12:48 PM EST
Sea-level pressure: 29.78 ins. Hg, rising, then more slowly
Visibility: 80 miles
6-hr max temp: 72F
6-hr min temp: 61F
BHO SA 1755 CLR 80 084/71/45/2919G26/978/
FEW CU ALQDS PK WND 2926/48/ 8/100 51012 10072 20061
WEATHER SUMMARY FOR SUNDAY, SEPTEMBER 21, 2014
TEMPERATURE (DEGREES F)
MAX…..80 NORMAL…..70
MIN…..61 NORMAL…..53
MEAN….71 NORMAL…..61
DEPARTURE FROM 30-YEAR NORMAL……………………+10
TOTAL DEPARTURE FOR THE MONTH……………………+34 [+1.4 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..6 DEPARTURE………..+5
TOTAL COOLING UNITS FOR THE MONTH………….92 DEPARTURE……….+40
TOTAL COOLING UNITS FOR THE SEASON………..571 DEPARTURE……….-18
TOTAL COOLING UNITS LAST SEASON TO DATE……696 DIFFERENCE……..-125
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE……….-5
TOTAL HEATING UNITS FOR THE MONTH…………..61 DEPARTURE……….+4
TOTAL HEATING UNITS FOR THE SEASON………….63 DEPARTURE………-19
TOTAL HEATING UNITS LAST SEASON TO DATE……..76 DIFFERENCE……..-13
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………26 SSE AT 6:55 A.M.
ASOS…………………..28 S AT 6:56 A.M.
DAVIS………………….27 S AT 6:56 A.M. RMY 27
FASTEST MILE FOR YESTERDAY………………..23 SSE AT 6:01 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..22 S AT 6:28 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….20 SSE AT 6:22 A.M.
AVERAGE WIND SPEED AND DIRECTION………….11.6 SSE
ASOS………………….11.7
DAVIS…………………10.6 S (172 degrees)
* last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.06 DEPARTURE……….-0.09
ASOS…………..0.05
TOTAL PRECIPITATION FOR THE MONTH……….0.26 DEPARTURE……….-2.47
ASOS…………..0.23
TOTAL PRECIPITATION FOR THE YEAR……….31.44 DEPARTURE……….-6.31
ASOS………….31.66
PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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
9/1 88/69/79/+11/0.00/710/90 16 W RMY 19
9/2 91/70/81/+13/0.00/495/63 24 S RMY 27 TSTM
9/3 83/67/75/+8/0.00/681/87 24 NW RMY 27
9/4 86/61/74/+7/0.00/758/97 20 SW RMY 22
9/5 89/66/78/+11/0.00/731/94 25 SSW RMY 29
9/6 90/67/79/+12/T/481/62 33 SSW RMY 36 TSTM
9/7 77/62/70/+4/0.03/687/89 26 NW RMY N/A
9/8 74/57/66/+0/0.00/601/78 25 ENE RMY 25
9/9 71/59/65/-1/0.00/384/50 23 ENE RMY 23
9/10 71/58/65/0/0.00/329/43 20 NE RMY 20
9/11 78/60/69/+4/0.00/099/13 31 SW RMY 35
9/12 72/51/62/-3/0.00/735/97 25 NNW RMY 22
9/13 67/50/59/-5/0.17/159/21 23 E RMY 24
9/14 66/47/57/-7/0.00/685/91 25 NW RMY 24
9/15 67/43/55/-9/0.00/698/93 17 W RMY 18
9/16 66/52/59/-4/T/…/.. 16 SW RMY 16
9/17 72/50/61/-2/0.00/…/.. 16 NW RMY 17
9/18 74/52/63/+1/0.00/…/.. 21 N RMY 23
9/19 56/43/50/-12/0.00/…/.. 21 NE RMY 23
9/20 71/45/58/-4/…./…/.. 29 S RMY 30
9/21 80/61/71/+10/0.06/…/.. 26 SSE RMY 27
9/22 morning low temp: 59F since midnight; normal low now 52F
DAILY RECORDS FOR SEPTEMBER 2014:
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR SEPTEMBER 22
HIGH 90F IN 1895, 1914
LOW 30F IN 1904 (Earliest freeze)
PRECIP 1.16 INCHES IN 2001
PEAK GUST 60 MPH SSW IN 1989
RECORDS FOR SEPTEMBER 23
HIGH 93F IN 1895,1914
LOW 33F IN 1904
PRECIP 2.67 INCHES IN 1994
PEAK GUST 62 MPH SSW IN 1989
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
