Sunday, May 11, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, MAY 11, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
WARM AND CLEARING FOLLOWING YESTERDAY’S HUMIDITY.
Yesterday’s maximum of 78F makes for the warmest temperature
so far this year. The current norm for daily maximum temperatures
sits at 65 F for this date, putting yesterday’s daily average of 68F,
13 degrees above the 30 year norm.
By 1:00 PM EST skies were almost entirely clear with only a few
cirrus fibratus distant on the horizon NW-NNE. A maximum of 77F
had been reached with breezing conditions from the W.
Today’s Observations:
7 A.M.
Weather: Few altostratus NE-SE, broken cirrus fibratus
Temperature: 62F; Dew Point: 43F; Wind: W at 10 kts
Sea-level pressure: 29.93 ins. Hg, steady, then rising
Visibility: 55 miles, 40 miles NE-SE, light distant haze all directions
6-hr max temp: 62F
6-hr min temp: 58F
24-hr precip: 0.09 inches
BHO SA 1155 E250 BKN 55 136/62/43/2810/993/ FEW AS NE-SE VSBY NE-SE 40 MI
LGT DSNT HZ ALQDS/ 8/021 53028 ASOS 60001 70008 MANUAL 70009 10062 20058
10 A.M.
Weather: Clear, few cirrus fibratus distant ENE
Temperature: 70F; Dew Point: 40F; Wind: W at 16G21 kts
Sea-level pressure: 29.95 ins. Hg, rising, then steady
Visibility: 60 miles, light distant haze in all directions
BHO SA 1455 CLR 60 142/70/40/2716G21/995/
FEW CI DSNT ENE LGT DSNT HZ ALQDS/ 8/001 51006
1 P.M.
Weather: Clear, few cirrus fibratus distant NW-NNE
Temperature: 76F; Dew Point: 30F; Wind: WNW at 14 kts
Sea-level pressure: 29.93 ins. Hg, falling, then more slowly
Visibility: 60 miles, light distant haze in all directions
6-hr max temp: 77F
6-hr min temp: 61F
BHO SA 1755 CLR 60 137/76/30/2914/993/
FEW CI DSNT NW-NNE LGT DSNT HZ ALQDS/ 8/001 56005 10077 20061
WEATHER SUMMARY FOR SATURDAY, MAY 10, 2014
TEMPERATURE (DEGREES F)
MAX…..78 NORMAL…..65
MIN…..57 NORMAL…..46
MEAN….68 NORMAL…..55
DEPARTURE FROM 30-YEAR NORMAL…………………….+13
TOTAL DEPARTURE FOR THE MONTH…………………….+28 [+2.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE………-10
TOTAL HEATING UNITS FOR THE MONTH…………..84 DEPARTURE………-29
TOTAL HEATING UNITS FOR THE SEASON………..6255 DEPARTURE……..+107
TOTAL HEATING UNITS LAST SEASON TO DATE……5607 DIFFERENCE…….+648
COOLING DEGREE DAYS (SEASON JUN-OCT)
TOTAL COOLING UNITS FOR YESTERDAY…………..3 DEPARTURE………+3
TOTAL COOLING UNITS FOR THE MONTH…………..3 DEPARTURE………+3
TOTAL COOLING UNITS FOR THE SEASON………….3 DEPARTURE………+3
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………33 S AT 3:54 A.M.*
ASOS…………………..38 S AT 3:55 A.M.
DAVIS………………….37 S AT 2:42 A.M. RMY 37
FASTEST MILE FOR YESTERDAY………………. 30 S AT 2:39 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..29 S AT 2:40 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….28 S AT 2:40 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..15.7 SW
ASOS…………………..14.9
DAVIS………………….14.2 SSW [207 deg]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.09 DEPARTURE………….-0.03
ASOS…………..0.08
TOTAL PRECIPITATION FOR THE MONTH……….0.66 DEPARTURE………….-0.56
ASOS…………..0.65
TOTAL PRECIPITATION FOR THE YEAR……….19.78 DEPARTURE………….+0.01
ASOS………….20.18
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE……………0.0
TOTAL SNOWFALL FOR THE MONTH…………….0.0 DEPARTURE……………0.0
TOTAL SNOWFALL FOR THE SEASON…………..85.6 DEPARTURE………….+22.9
PRELIMINARY CLIMATE SUMMARY FOR MAY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
5/1 64/43/54/+1/0.49/0.0/093/11 32 SSE RMY 36
5/2 68/51/60/+7/T/0.0/457/54 28 W RMY 29
5/3 66/48/57/+4/…./0.0/332/39 21 SW RMY N/A
5/4 60/47/54/0/0.01/0.0/400/47 51 WNW RMY 54
5/5 64/46/55/+1/T/0.0/592/70 30 NW RMY 32
5/6 63/42/53/-1/T/0.0/506/59 30 NW RMY 30
5/7 64/42/55/0/0.00/0.0/…/.. 21 WNW RMY 23
5/8 69/48/59/+4/0.00/0.0/…/.. 17 SSW RMY 19
5/9 57/51/54/-1/…./0.0/000/00 21 S RMY N/A
5/10 78/57/68/+13/…./0.0/…/.. 33 S RMY 37
5/11 morning low temp: 58F; the normal low is now 46F
DAILY RECORDS FOR MAY 2014
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MAY 11
HIGH 90F IN 1993
LOW 28F IN 1900
PRE 1.28 INS IN 1957
SNOW 1.0 INS IN 1907 (LATEST MEASURABLE SNOW ON RECORD)
PEAK GUST 75e MPH NW IN 1945
RECORDS FOR MAY 12
HIGH 88F IN 2001
LOW 29F IN 1907
PRECIP 1.49 INCHES IN 1968
PEAK GUST 76 MPH S IN 1974
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
