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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, NOVEMBER 4, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
CLEAR AND COOL MONDAY GIVES WAY TO
MOSTLY CLOUDY AND WARMER TUESDAY
Clear skies, cool temperatures in the 30s and 40s and
visibility up to 80 miles in all directions yesterday
have given way to a much warmer and cloudy start to
today. Yesterday’s maximum of 50F was reached just after
9:00 AM EST this morning after an overnight low of 43F.
Altocumulus have kept skies mostly cloudy to overcast
as high pressure is beginning to crest in the region.
By the 1:00 PM EST observation skies were mostly cloudy
with altocumulus and light distant haze in all directions.
Visibility was reduced to 60 miles with a maximum temperature
of 61F recorded so far today.
OCTOBER MONTHLY SUMMARY
The October precipitation total of 9.96 inches ties for the
fourth highest on record with October 2011.
BHO Greatest October Precipitation, inches (1885-2014)
1) 14.72 in 2005
2) 11.76 in 1996
3) 10.84 in 1962
4) 9.96 in 2011
9.96 in 2014
6) 8.89 in 1932
7) 8.12 in 1955
OCTOBER 2014 PRELIMINARY STATS
[Departures are relative to the 1981-2010 normal]
TEMPERATURE [deg. F]
Av. Max. 62.3 [+2.0]
Av. Min. 47.2 [+4.3]
Mean 54.8 [+3.2]
24-hour corr. mean: 54.4
Max. temp. for month: 79 on 15th
Min, temp. for month: 33 on 20th
Total heating degree day units: 321 [-100]
Total seasonal heating units: 422 [-141]
Total cooling degree day units: 8 [+3]
Total seasonal cooling units: 595 [-7]
PRECIPITATION [ins.]
Total: 9.96 [+5.27]
Greatest one calendar day: 3.66 [on the 23rd]
Greatest in 24 hours 5.15 inches [19E-19E 22nd-23rd]
WIND
Av. wind speed: 12.9 MPH
Av. corr. wind speed: 13.1 MPH
Prevailing direction: W @ 15%
SUNSHINE
Total astronomical minutes: 8988/20548 or 44% of possible
Total Campbell Stokes card minutes: 8664/19824 or 44% of possible
Today’s Observations:
7 A.M.
Weather: Broken altocumulus, broken altostratus,
broken cirrocumulus
Temperature: 45F; Dew Point: 25F; Wind: W at 9 kts
Sea-level pressure: 30.14 ins. Hg, rising steadily
Visibility: 70 miles, except 50 miles W, light distant haze
6-hr max temp: 46F
6-hr min temp: 44F
24-hr precip: 0.00 inches
BHO SA 1155 E60 BKN 100 BKN 180 BKN 70 205/45/25/2709/014/
VSBY W 50 MI LGT DSNT HZ ALQDS/ 8/079 52015 10046 20044
10 A.M.
Weather: Broken altocumulus
Temperature: 52F; Dew Point: 26F; Wind: estimated W at 6 kts
Wind Speed: Light
Sea-level pressure: 30.15 ins. Hg, rising, then steady
Visibility: 60 miles, 70 miles ENE-SSW, light smoke layer
along horizon SW-NE, light distant haze
BHO SA 1455 E70 BKN 60 211/52/26/E2606/015/ VSBY ENE-SSW 70 MI
LGT K LYR ALG HRZN SW-NE LGT DSNT HZ ALQDS WND LGT/ 8/030 51006
1 P.M.
Weather: Broken altocumulus
Temperature: 60F; Dew Point: 32F; Wind: estimated SSW at 4 kts,
Wind Speed and Direction: Light and Variable
Sea-level pressure: 30.11 ins. Hg, falling, then more slowly
Visibility: 60 miles, light distant haze
6-hr max temp: 61F
6-hr min temp: 45F
6-hr precip: 0.00
BHO SA 1755 E60 BKN 60 198/60/32/E2204/011/ LGT DSNT HZ ALQDS
WND LGT AND VRB/ 8/030 56013 10061 20045
WEATHER SUMMARY FOR MONDAY, NOVEMBER 3, 2014
TEMPERATURE (DEGREES F)
MAX…..50 NORMAL…..54
MIN…..30 NORMAL…..37
MEAN….40 NORMAL…..46
DEPARTURE FROM 30-YEAR NORMAL…………………….-6
TOTAL DEPARTURE FOR THE MONTH……………………-22 [-7.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..25 DEPARTURE………..+6
TOTAL HEATING UNITS FOR THE MONTH…………..79 DEPARTURE……….+22
TOTAL HEATING UNITS FOR THE SEASON…………501 DEPARTURE………-119
TOTAL HEATING UNITS LAST SEASON TO DATE…….513 DIFFERENCE………-12
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………39 WNW AT 9:35 A.M.
ASOS…………………..42 WNW AT 8:35 A.M.
DAVIS………………….39 W AT 8:30 A.M. RMY 43
FASTEST MILE FOR YESTERDAY………………..30 WNW AT 9:12 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..28 WNW AT 9:12 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….26 WNW AT 8:32 A.M.
AVERAGE WIND SPEED AND DIRECTION…………17.7 WNW
ASOS…………………16.8
DAVIS………………..15.2 W (284 degrees)
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……..-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.08 DEPARTURE……..+0.61
ASOS…………..1.12
TOTAL PRECIPITATION FOR THE YEAR……….42.63 DEPARTURE……..-1.61
ASOS………….42.99
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER & NOVEMBER 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
10/1 56/55/56/-1/1.63/000/00 33 NE RMY 36
10/2 55/47/51/-6/0.29/000/00 30 NE RMY N/A
10/3 54/46/50/-6/0.05/000/00 20 NE RMY 20
10/4 63/52/58/+2/0.30/000/00 30 SE RMY 32
10/5 60/45/53/-3/0.00/658/95 26 W RMY 28
10/6 66/42/54/-1/0.00/669/97 25 SSE RMY N/A
10/7 72/54/63/+8/0.01/261/38 * 43 S RMY 49
10/8 72/53/63/+9/0.01/562/82 40 S RMY N/A
10/9 64/48/56/+2/0.00/648/95 35 W RMY 39
10/10 63/43/53/-1/0.00/489/72 23 W RMY N/A
10/11 50/43/47/-6/0.35/000/00 15 N RMY N/A
10/12 60/40/50/-3/0.00/674/100 * 20 NW RMY N/A
10/13 61/45/53/+0/0.00/054/08 23 S RMY 25
10/14 75/58/67/+15/0.00/448/67 29 S RMY 31
10/15 79/62/71/+19/0.02/459/69 # 32 SSW RMY 36
10/16 70/60/65/+14/0.60/000/00 37 S RMY 41
10/17 71/57/64/+13/0.00/528/80 28 SW RMY 30
10/18 71/52/62/+11/0.24/210/32 28 WNW RMY 30 TSTM
10/19 55/39/47/-3/0.00/020/03 28 NW RMY 29
10/20 56/33/45/-5/0.00/515/79 23 SW RMY 25
10/21 61/49/55/+5/0.16/045/07 17 NNE RMY N/A
10/22 54/48/51/+2/2.38/000/00 58 NE RMY 58 TSTM
10/23 53/47/50/+1/3.66/000/00 43 N RMY N/A
10/24 52/43/48/-1/0.16/000/00 25 NNW RMY N/A
10/25 63/41/52/+3/0.00/568/89 21 WSW RMY N/A
10/26 57/43/50/+2/T/337/53 37 W RMY 39
10/27 61/42/52/+4/0.00/633/100 26 WNW RMY 31
10/28 70/46/58/+10/0.00/403/64 23 S RMY 24
10/29 73/47/60/+13/0.10/195/31 25 NNW RMY 27
10/30 59/41/50/+3/0.00/419/67 18 NW RMY 20
10/31 53/42/48/+1/0.00/193/31 23 NNE RMY N/A
11/1 45/36/41/-5/…./000/00 35 NNE RMY N/A
11/2 37/32/35/-11/…./000/00 46 NW RMY 49
11/3 50/30/45/-6/0.00/…/.. 39 WNW RMY 43
11/4 morning low temp: 30F since midnight; normal low now 37F
* Sunshine corrected from 281 to 261 on the 7th and from
681 to 674 on the 12th
# Temperature departure corrected from +18 to +19 on the 15th
DAILY RECORDS FOR OCTOBER 2014:
10/1 – A NEW RECORD DAILY PRECIPITATION OF 1.63 INCHES;
surpasses the previous record of 1.44 ins. in 1984
10/22 – A NEW RECORD DAILY PRECIPITATION OF 2.38 INCHES;
surpasses the previous record of 1.37 ins. in 1898
10/23 – A NEW RECORD DAILY PRECIPITATION OF 3.66 INCHES;
surpasses the previous record of 2.18 ins. in 1956
DAILY RECORDS FOR NOVEMBER 2014:
11/2 – A NEW RECORD DAILY SNOWFALL 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 4
HIGH 77 IN 1987
LOW 22 IN 1891
PRECIP 3.27 INCHES IN 1910
SNOWFALL 6.4 IN 1945
PEAK GUST 73 WNW IN 1965
RECORDS FOR NOVEMBER 5
HIGH 76 IN 1994
LOW 18 IN 1908
PRECIP 4.26 INCHES IN 1955
SNOWFALL 1.5 IN 1892
PEAK GUST 69 W IN 2004
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
