Thursday, May 15, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, MAY 15, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
TEMPERATURE AND HUMIDITY INCREASING TODAY…
After a morning low of 57F the temperature reached a
maximum of 77F at 12:30 P.M. EDT early this afternoon
resulting in a mean temperature of 67 degrees which
is 10 degrees warmer than normal. The dew points have
risen from the 50’s early today to the more humid lower
60’s by early this afternoon.
Today’s Observations:
7 A.M.
Weather: Overcast stratocumulus, few cumulus fractus E-SSE,
bright sky E-SSE, thin fog SW-NW
Temperature: 63F; Dew Point: 58F; Wind: S at 12 kts
Sea-level pressure: 30.31 ins. Hg, rising, then falling,
but higher than 3 hours ago
Visibility: 20 miles, except 30 miles E-SE, SW-NW 20 miles,
thin fog
6-hr max temp: 63F
6-hr min temp: 57F
24-hr precip: None
BHO SA 1155 E28 OVC 20 262/63/58/1812/031/ FEW CUFRA E-SSE BRGHT SKY
MSTLY DSNT E-SSE VSBY E-SE 30 SW-NW 20 THN F/ 8/8// 55000
10063 20057
10 A.M.
Weather: Broken stratocumulus, cumulus all quadrants
Temperature: 73F; Dew Point: 58F; Wind: S at 12G18 kts
Wind Speed and Direction: Light and variable
Sea-level pressure: 30.29 ins. Hg, falling slightly
Visibility: 30 miles, hazy
BHO SA 1455 E43 30 257/73/58/1812G18/029/ CU ALQDS HAZY WND 12V21/
8/800 58005
1 P.M.
Weather: Overcast stratocumulus, bright spots in overcast
Temperature: 72F; Dew Point: 62F; Wind: S at 13 kts
Wind Direction: Variable SSE-SSW
Sea-level pressure: 30.28 ins. Hg, falling slightly
Visibility: 15 miles, WNW 20 miles, hazy
6-hr max temp: 77F
6-hr min temp: 63F
BHO SA 1755 E23 OVC 15 253/72/62/1913/028/ BRGHT SPTS IOVC
VSBY WNW 20 HAZY WND 15V21/ 8/5// 55004 10077 20063
WEATHER SUMMARY FOR WEDNESDAY, MAY 14, 2014
TEMPERATURE (DEGREES F)
MAX…..73 NORMAL…..66
MIN…..42 NORMAL…..47
MEAN….58 NORMAL…..57
DEPARTURE FROM 30-YEAR NORMAL……………………..+1
TOTAL DEPARTURE FOR THE MONTH…………………….+45 [+3.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY………….. 7 DEPARTURE……….-2
TOTAL HEATING UNITS FOR THE MONTH………….108 DEPARTURE………-43
TOTAL HEATING UNITS FOR THE SEASON………..6279 DEPARTURE………+93
TOTAL HEATING UNITS LAST SEASON TO DATE……5648 DIFFERENCE…….+633
COOLING DEGREE DAYS (SEASON JUN-OCT)
TOTAL COOLING UNITS FOR YESTERDAY…………..0 DEPARTURE……….0
TOTAL COOLING UNITS FOR THE MONTH…………..9 DEPARTURE………+9
TOTAL COOLING UNITS FOR THE SEASON………….9 DEPARTURE………+9
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………22 S AT 6:00 P.M.
ASOS…………………..24 S AT 5:59 P.M.
DAVIS………………….23 SSE AT 5:59 P.M. RMY 24
FASTEST MILE FOR YESTERDAY………………..18 S AT 6:02 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..18 S AT 6:01 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18 S AT 5>59 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..7.0
ASOS…………………..7.1
DAVIS………………….6.3 SSE [160 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 THE MONTH……….0.66 DEPARTURE………….-1.05
ASOS…………..0.65
TOTAL PRECIPITATION FOR THE YEAR……….19.78 DEPARTURE………….-0.48
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/+4/0.00/0.0/332/39 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 64/42/55/0/0.00/0.0/850/99 21 WNW RMY 23
5/8 69/48/59/+4/0.00/0.0/612/71 17 SSW RMY 19
5/9 57/51/54/-1/0.05/0.0/000/00 21 S RMY N/A
5/10 78/57/68/+13/0.10/0.0/043/05 33 S RMY 37
5/11 79/58/69/+13/0.01/0.0/746/86 30 W RMY 34
5/12 85/49/67/+11/0.00/0.0/…/.. 39 NE RMY 42
5/13 54/42/48/-8/0.00/…/…/.. 32 NE RMY N/A
5/14 73/42/58/+1/T/…/…/.. 22 S RMY 24
5/15 morning low temp: 57F; the normal low is now 48F
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 15
HIGH 93F IN 1900
LOW 36F IN 1947,1985
PRECIP 1.63 INCHES IN 1978
PEAK GUST 53e MPH NE IN 1978, W 2002
RECORDS FOR MAY 16
HIGH 90F IN 1951
LOW 30F IN 1936
PRECIP 2.63 INCHES IN 1954
PEAK GUST 56e MPH NW IN 1952
TODAY’S REPORT PREPARED BY: Robert Skilling
