Tuesday, September 9, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, SEPTEMBER 9, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
SEASONABLE CONDITIONS CONTINUE, ALONG WITH
ABNORMAL DRYNESS
Another day of stable weather has added to the long
term precipitation deficit of now -0.93 inches for the
month of September, and -4.77 inches for the year. Winds
have remained fairly steady above 10 MPH from the NE-ENE
gusting at times above 20 MPH. Yesterday’s maximum of
74F matched the daily normal maximum for that date.
Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus, scattered altocumulus,
scattered cirrus fibratus, altocumulus lenticularis distant S-N
Temperature: 65F; Dew Point: 53F; Wind: ENE at 9 kts,
Sea-level pressure: 30.35 ins. Hg, rising, then more quickly
Visibility: 65 miles, light distant haze in all directions,
thin fog distant E-SE
6-hr max temp: 65F
6-hr min temp: 59F
24-hr precip: 0.00
BHO SA 1155 43 SCT 160 SCT 250 SCT 65 278/65/53/0709/035/
ACSL DSNT S-N THN FG DSNT E-SE LGT DSNT HZ ALQDS/
8/571 53003 10065 20059
10 A.M.
Weather: Few cumulus distant SE-NNE, broken stratocumulus,
broken cirrostratus, stratocumulus lenticularis in all directions
Temperature: 69F; Dew Point: 48F; Wind: E at 11G18 kts,
Sea-level pressure: 30.35 ins. Hg, rising, then more slowly
Visibility: 70 miles, light distant haze in all directions
BHO SA 1455 E42 BKN 250 BKN 70 278/69/48/0911G18/035/
FEW CU DSNT SE-NNE SCSL ALQDS LGT DSNT HZ ALQDS/ 8/506 55000
1 P.M.
Weather: Few cumulus E-NNE, scattered altocumulus,
broken cirrostratus, partial halo around sun
Temperature: 68F; Dew Point: 53F; Wind: NE at 9G18 kts,
Sea-level pressure: 30.31 ins. Hg, rising, then falling and lower
Visibility: 65 miles, light distant haze
6-hr max. temp: 71F
6-hr min. temp: 63F
BHO SA 1755 90 SCT E200 BKN 65 263/68/53/0409G18/031/
FEW CU E-NNE PARTIAL HALO ARND SUN LGT DSNT HZ ALQDS/
8/176 58015 10071 20063
WEATHER SUMMARY FOR MONDAY, SEPTEMBER 8, 2014
TEMPERATURE (DEGREES F)
MAX…..74 NORMAL…..74
MIN…..57 NORMAL…..57
MEAN….66 NORMAL…..66
DEPARTURE FROM 30-YEAR NORMAL…………………….+0
TOTAL DEPARTURE FOR THE MONTH……………………+66 [+8.1 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..1 DEPARTURE………..-2
TOTAL COOLING UNITS FOR THE MONTH………….82 DEPARTURE……….+55
TOTAL COOLING UNITS FOR THE SEASON………..561 DEPARTURE………..-3
TOTAL COOLING UNITS LAST SEASON TO DATE……663 DIFFERENCE……..-102
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE……….-2
TOTAL HEATING UNITS FOR THE MONTH……………0 DEPARTURE………-12
TOTAL HEATING UNITS FOR THE SEASON…………..2 DEPARTURE………-35
TOTAL HEATING UNITS LAST SEASON TO DATE……..29 DIFFERENCE……..-27
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………25 ENE AT 9:02 A.M.
ASOS…………………..27 E AT 9:02 A.M.
DAVIS………………….23 NE AT 8:17 A.M. RMY 25
FASTEST MILE FOR YESTERDAY………………..17 ENE AT 9:03 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20 ENE AT 9:03 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18 ENE AT 9:04 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..11.2 NE
ASOS…………………..11.2
DAVIS………………….9.5 NE [52 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……….-0.12
ASOS…………..0.00
TOTAL PRECIPITATION FOR SEPTEMBER……….0.03 DEPARTURE……….-0.93
ASOS…………..0.02
TOTAL PRECIPITATION FOR THE YEAR……….31.21 DEPARTURE……….-4.77
ASOS………….31.45
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/…/.. 16 W RMY 19
9/2 91/70/81/+13/0.00/…/.. 24 S RMY 27 TSTM
9/3 83/67/75/+8/0.00/…/.. 24 NW RMY 27
9/4 86/61/74/+7/0.00/…/,. 20 SW RMY 22
9/5 89/66/78/+11/0.00/…/.. 25 SSW RMY 29
9/6 90/67/79/+12/…./…/.. 33 SSW RMY 36 TSTM
9/7 77/62/70/+4/0.00/…/.. 26 NW RMY N/A
9/8 74/57/66/+0/0.00/…/.. 25 ENE RMY 25
9/9 morning low temp: 59F since midnight; normal low now 57F
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 9
HIGH 91F IN 2002
LOW 41F IN 1938
PRECIP 1.97 INCHES IN 1969
PEAK GUST 52 MPH WNW IN 1969, NW IN 1978
RECORDS FOR SEPTEMBER 10
HIGH 90F IN 1931,1989
LOW 41F IN 1956
PRECIP 5.60 INCHES IN 1999 (DAILY RECORD FOR SEPTEMBER)
PEAK GUST 48 MPH NW IN 1972
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
