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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 2, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
RAIN TURNS TO WET SNOW EARLY THIS MORNING, ACCUMULATING
SLOWLY WITH GUSTY WINDS SHIFTING N TO NW, NEW DAILY SNOWFALL
RECORD BROKEN
Rain changed over to snow at 6:50 AM EST this morning during the
7:00 AM EST observation. Snow began falling lightly, then turning
moderate by the 10:00 AM EST observation. Visibility was reduced
during this time to 1/4 of a mile due to the moderate snow and
fog. By 11:30 AM snow had accumulated to 1.6 inches on the ground.
Today’s daily record snowfall of 0.2 inches set in 1906 and 1951
has unofficially been broken, with statistics to follow tomorrow.
By the 1:00 PM EST observation 1.8 inches of snow had fallen so
far today.
Winds have remained gusty throughout this morning shifting NNE to
NW by mid day. The peak gust by mid day was 39 MPH from the N with
temperatures falling to 31F.
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 N/A
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: Light snow, overcast stratus
Temperature: 35F; Dew Point: 35F; Wind: N at 22G26 kts
Peak Gust: 31 kts N @ 06:22 AM EST
Sea-level pressure: 29.62 ins. Hg, falling then more quickly
Visibility: 15 miles, except WNW-NW, 50 miles, obscured by light snow
6-hr max temp: 37F
6-hr min temp: 35F
24-hr precip: 0.84 inches
24-hr snow: Trace
BHO SA 1155 E3 OVC 15S- 032/35/35/3622G26/962/ RE50SB50 VSBY WNW-NW
50 MI PK WND 3631/22/ TOTAL NEW SNW PST 3 HRS TRACE 8/6// 58030
ASOS 60002 70082 MANUAL 70082 10037 20035
10 A.M.
Weather: Moderate snow and fog
Temperature: 32F; Dew Point: 32F; Wind: NNW at 24G30 kts
Peak Gust: 33 kts N @ 09:02 AM EST
Sea-level pressure: 29.61 ins. Hg, falling, then more slowly
Visibility: 1/2 of a mile, obscured by fog and moderate snow
3-hour precip: 0.06 inches
3-hr snow: Trace
BHO SA 1455 W3 X 1/2SF 026/32/32/3424G30/961/ TOTAL NEW SNW PST
3 HRS TRACE PK WND 3533/02/ 8/// 56006 ASOS 6005 MANUAL 60006
1 P.M.
Weather: Light snow and fog
Temperature: 32F; Dew Point: 32F; Wind: NW at 19G27 kts,
Peak Gust: 28 kts NNW at 12:30 P.M.
Sea-level pressure: 29.62 ins. Hg, falling, then rising
Visibility: 5/8 of a mile, except 1/2 of a mile ESE-NNE
6-hr max temp: 36F
6-hr min temp: 32F
6-hr precip: 0.23 inches
6-hr snow: 1.8 inches
BHO SA 1755 W3 X 5/8S-F 031/32/32/3219G27/962/ VSBY ESE-NNE 1/2 MI
TOTAL NEW SNW PST 6 HRS 1.8 INS PK WND 3328/30/ 8/// 53005 AS0S 60026
MANUAL 60023 10036 20032
WEATHER SUMMARY FOR SATURDAY, NOVEMBER 1, 2014
TEMPERATURE (DEGREES F)
MAX…..45 NORMAL…..55
MIN…..36 NORMAL…..38
MEAN….41 NORMAL…..46
DEPARTURE FROM 30-YEAR NORMAL…………………….-5
TOTAL DEPARTURE FOR THE MONTH…………………….-5 [-4.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..24 DEPARTURE………..+5
TOTAL HEATING UNITS FOR THE MONTH…………..24 DEPARTURE………..+5
TOTAL HEATING UNITS FOR THE SEASON…………446 DEPARTURE………-136
TOTAL HEATING UNITS LAST SEASON TO DATE…….480 DIFFERENCE………-34
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………35 NNE AT 2:53 P.M.
ASOS…………………..37 NNE AT 2:54 P.M.
DAVIS………………….37 NNE AT 2:55 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..25 NNE AT 2:54 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..23 N AT 11:41 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….22 NNE AT 2:55 P.M.
AVERAGE WIND SPEED AND DIRECTION…………15.5 N
ASOS…………………14.5
DAVIS………………..13.2 N (007 degrees)
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.84 DEPARTURE……..+0.68
ASOS…………..0.82
TOTAL PRECIPITATION FOR THE MONTH……….0.84 DEPARTURE……..+0.68
ASOS…………..0.82
TOTAL PRECIPITATION FOR THE YEAR……….42.39 DEPARTURE……..-1.54
ASOS………….42.69
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
* 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
11/1 45/36/41/-5/…./000/00 35 NNE RMY N/A
11/2 morning low temp: 35F since midnight; normal low now 37F
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 EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 0.2 IN 1906,1951
PEAK GUST 63 WSW IN 1973
RECORDS FOR NOVEMBER 3
HIGH 75 IN 1990
LOW 21 IN 1891
PRECIP 1.92 INCHES IN 1951
SNOWFALL 0.1 IN 1951
PEAK GUST 96e SSE IN 1951
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
