Saturday, July 19, 2014
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, JULY 19, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
INCREASING CLOUDS WITH BUILDING CUMULUS THIS AFTERNOON…
MODERATE HUMIDITY WITH VERY LIGHT WINDS TODAY…
Clouds have been on the increase since yesterday with
mostly middle to high level clouds filling the sky
early today. Cumulus began building by late morning
as a sea-breeze began, which turned the wind out of
the east. By early afternoon, numerous moderate cumulus
were developing. All day, fog was apparent over
Boston Harbor to the NE, reducing the visibility in
that direction. The humidity level has been moderate
most of the day with a dew point near 60F, though
the dew point spiked to the middle 60s for a while
early this afternoon before dropping once again.
Winds have generally been very light under 8 mph
with a peak gust so far on the 420C gust recorder
of only 10 mph.
Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, broken dense cirrus and
cirrostratus, overcast cirrus, altocumulus overhead-E,
few cirrocumulus overhead, dense cirrus all quadrants,
thin spots in overcast, breaks in overcast all quadrants,
thin ground fog all quadrants, fog over ocean NW, hazy
Temperature: 66F; Dew Point: 60F; Wind: N at 7 kts
Sea-level pressure: 30.28 ins. Hg, rising
Visibility: 25 miles, visibility NE 15, hazy
6-hr max temp: 66F
6-hr min temp: 63F
24-hr precip: None
BHO SA 1155 180 SCT 200 BKN 250 OVC 25 254/66/60/0107/028/
AC OVHD-E FEW CC OVHD DNS CI ALQDS THN SPTS IOVC BINOVC
ALQDS THN GF ALQDS FOG OVR OCN NE VSBY NE 15 HAZY/ 8/078
53003 10066 20063
10 A.M.
Weather: Scattered altocumulus, overcast altostratus, small
lone cumulus NNW, few lower altocumulus, fog over ocean NE,
sun dimly visible, hazy
Temperature: 73F; Dew Point: 60F; Wind: N at 3 kts (estimated),
Wind: Light
Sea-level pressure: 30.29 ins. Hg, rising
Visibility: 35 miles, hazy
BHO SA 1455 150 SCT 180 OVC 35 257/73/60/E0103/029/ SML CU NNW
FEW LWR AC FOG OVR OCN NE SUN DMLY VSBL HAZY WND LGT/ 8/178
50003
1 P.M.
Weather: Scattered cumulus (2 levels), broken altocumulus/
altostratus, broken cirrostratus, overcast cirrus, few moderate
cumulus S-SW, fog over ocean NE, breaks in overcast S, sun
dimly visible, hazy
Temperature: 75F; Dew Point: 61F; Wind: E at 5 kts,
Wind: Light
Sea-level pressure: 30.27 ins. Hg, falling steadily
Visibility: 30 miles, visibility S-WSW 40, N-ENE 15, hazy
6-hr max temp: 75F
6-hr min temp: 66F
BHO SA 1755 35 SCT 60 SCT E150 BKN 180 BKN 250 OVC 30 250/75/61/
1005/027/ FEW MDT CU S-SW FOG OVR OCN NE BINOVC S SUN DMLY VSBL
VSBY S-WSW 40 VSBY N-ENE 15 HAZY WND LGT/ 8/278 57007 10075 20066
WEATHER SUMMARY FOR FRIDAY, JULY 18, 2014
TEMPERATURE (DEGREES F)
MAX…..80 NORMAL…..81
MIN…..60 NORMAL…..63
MEAN….70 NORMAL…..72
DEPARTURE FROM 30-YEAR NORMAL…………………….-2
TOTAL DEPARTURE FOR THE MONTH……………………+36 [+1.8 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..5 DEPARTURE……….-3
TOTAL COOLING UNITS FOR THE MONTH…………153 DEPARTURE………+31
TOTAL COOLING UNITS FOR THE SEASON………..262 DEPARTURE………+11
TOTAL COOLING UNITS LAST SEASON TO DATE……372 DIFFERENCE…….-110
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………15 NW AT 4:10 A.M.
ASOS…………………..18 NW AT 4:10 A.M.
DAVIS………………….15 NW AT 2:47 A.M. RMY 16
FASTEST MILE FOR YESTERDAY………………..12 NW AT 4:10 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..13 NW AT 4:11 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….11 SSE AT 7:42 P.M.
AVERAGE WIND SPEED AND DIRECTION………….8.1 WNW
ASOS………………….7.7
DAVIS…………………6.4 WNW [284 deg]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……….-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….4.35 DEPARTURE……….+1.18
ASOS…………..4.32
TOTAL PRECIPITATION FOR THE YEAR……….28.90 DEPARTURE……….-1.24
ASOS………….28.83
PRELIMINARY CLIMATE SUMMARY FOR JULY 2014 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
7/1 85/66/76/+6/0.00/695/76 31 SSW RMY 36
7/2 89/69/79/+9/T/639/70 33 SSW RMY 38
7/3 91/68/80/+9/0.05/611/67 29 W RMY 30 TSTM
7/4 72/61/67/-4/2.48/027/03 28 N RMY N/A TSTM
7/5 77/55/66/-5/0.27/738/81 36 NW RMY N/A
7/6 83/61/72/+1/0.00/892/98 29 SW RMY 33
7/7 85/65/75/+4/T/563/62 33 SW RMY 38 TSTM [NO RAIN]
7/8 89/70/80/+8/0.00/763/84 31 SW RMY 38
7/9 86/70/78/+6/0.00/779/86 28 SSW RMY N/A
7/10 80/65/73/+1/0.00/597/66 16 NW RMY N/A
7/11 76/62/69/-3/0.00/732/81 22 NE RMY N/A
7/12 85/60/73/+1/0.00/849/94 21 S RMY 25
7/13 82/64/73/+1/…./676/75 31 S RMY 35
7/14 83/69/76/+4/…./207/23 25 S RMY 27
7/15 82/70/76/+4/…./135/15 26 S RMY 29 TSTM
7/16 73/65/69/-3/0.97/000/00 27 SSW RMY 32 TSTM
7/17 79/62/71/-1/T/…/.. 15 WSW RMY 17
7/18 80/60/70/-2/0.00/…/.. 15 NW RMY 16
7/19 morning low of 63F; the normal low is now 63F
DAILY RECORDS FOR JULY 2014
7/4 NEW DAILY RECORD RAINFALL OF 2.48 ins;
surpasses previous record of 1.78 ins. in 1950
7/16 NEW DAILY RECORD RAINFALL OF 0.97 ins;
surpasses previous record of 0.89 ins. in 1919
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JULY 19
HIGH 96F IN 1977, 1991
LOW 50F IN 1890
PRECIP 1.10 INS IN 1951
WIND 63 MPH SSW IN 1982
RECORDS FOR JULY 20
HIGH 99F IN 1991
LOW 47F IN 1890
PRECIP 1.64 INS IN 1938
WIND 56e MPH SSW IN 1943
TODAY’S REPORT PREPARED BY: Mike Iacono
