Friday, August 1, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 1, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
THE JULY 2014 PRELIMINARY STATS
TEMPERATURE [deg. F]
Av. Max. 80.8
Av. Min. 63.5
Mean 72.2 [+0.3]
24-hour corr. mean: 72.0
Max. temp. for month: 91 on 3rd
Min, temp. for month: 55 on 5th
Total heating degree day units: None
Total cooling degree day units: 228
Total seasonal cooling units: 337 [-14]
Season [1/1 thru 7/31]
PRECIPITATION [ins.]
Total: 5.08 [+1.06]
Greatest one calendar day: 2.48 [4th] *
Greatest in 24 hours 2.73 [4-5th]
* new record for date; previous was 1.78 in 1950
WIND
Av. wind speed: 11.4 MPH
Av. corr. wind speed: 11.8 MPH
Prevailing direction: to be reported later
SUNSHINE
to be reported later
Today’s Observations:
7 A.M.
Weather: Thin scattered cirrus, thin overcast cirrostratus,
thin fog
Temperature: 68F; Dew Point: 65F; Wind: W at 9 kts
Sea-level pressure: 30.23 ins. Hg, rising then more rapidly
Visibility: 6 miles, except 8 miles SW, thin fog
6-hr max temp: 68F
6-hr min temp: 63F
24-hr precip: None
BHO SA 1155 220 -SCT 300 -OVC 6F 237/68/65/2709/023/
8/007 53009 10068 20063
10 A.M.
Weather: Scattered dense cirrostratus, thin overcast
cirrostratus, cumulus fractus and cumulus forming
Temperature: 78F; Dew Point: 63F; Wind: S at 5 kts,
Wind: Light
Sea-level pressure: 30.25 ins. Hg, rising slightly
Visibility: 15 miles, hazy
BHO SA 1455 220 SCT 300 -OVC 15 242/78/63/1705/025/
CUFRA/CU FRMG/ HAZY/ 8/107 53005
1 P.M.
Weather: Broken towering cumulus, moderate cumulus, cumulus,
broken altocumulus, overcast cirrostatus, layer partly thin
Temperature: 85F; Dew Point: 64F; Wind: S at 10 kts
Sea-level pressure: 30.11 ins. Hg, falling slightly
Visibility: 15 miles, hazy
6-hr max temp: 85F
6-hr min temp: 68F
BHO SA 1755 35 SCT E45 BKN 160 BKN 250 OVC 15 235/85/64/1910/022/
TCU/MDT CU ALQDS 250 OVC PTLY THN HAZY/ 8/237 58007 10085 20068
WEATHER SUMMARY FOR THURSDAY, JULY 31, 2014
TEMPERATURE (DEGREES F)
MAX…..80 NORMAL…..81
MIN…..61 NORMAL…..63
MEAN….71 NORMAL…..72
DEPARTURE FROM 30-YEAR NORMAL…………………….-1
TOTAL DEPARTURE FOR THE MONTH……………………+20 [+0.5 DEGREE/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..6 DEPARTURE……….-1
TOTAL COOLING UNITS FOR THE MONTH…………228 DEPARTURE……….+6
TOTAL COOLING UNITS FOR THE SEASON………..337 DEPARTURE………-14
TOTAL COOLING UNITS LAST SEASON TO DATE……483 DIFFERENCE…….-146
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………27 S AT 4:47 P.M. *
ASOS…………………..29 S AT 4:32 P.M.
DAVIS………………….28 S AT 4:48 P.M. RMY 29
FASTEST MILE FOR YESTERDAY………………..23 S AT 5:41 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE……………..23 S AT 5:42 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….21 S AT 4:34 p.m.
AVERAGE WIND SPEED AND DIRECTION………….12.2 S
ASOS………………….11.9
DAVIS…………………10.9 SSW [200 deg.]
* 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 JULY……………5.08 DEPARTURE……….+1.06
ASOS…………..5.05
TOTAL PRECIPITATION FOR THE YEAR……….29.63 DEPARTURE……….-1.37
ASOS………….29.56
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/+1/0.01/676/75 31 S RMY 35
7/14 83/69/76/+4/0.54/207/23 25 S RMY 27
7/15 82/70/76/+4/0.02/135/15 26 S RMY 29 TSTM
7/16 73/65/69/-3/0.98/000/00 27 SSW RMY 32 TSTM
7/17 79/62/71/-1/T/573/64 15 WSW RMY 17
7/18 80/60/70/-2/0.00/822/92 15 NW RMY 16
7/19 77/63/70/-2/0.00/054/06 13 E RMY 14
7/20 72/60/66/-6/T/312/35 16 ENE RMY 16
7/21 76/59/68/-4/0.00/667/75 16 E RMY 19
7/22 88/63/76/+4/0.00/816/92 22 SSW RMY 25
7/23 88/68/78/+6/0.00/770/87 29 S RMY 32
7/24 74/63/69/-3/0.01/291/33 18 ENE RMY 18
7/25 80/56/68/-4/0.00/…/.. 18 NW RMY N/A
7/26 82/63/73/+1/0.00/…/.. 28 SSW RMY 32
7/27 75/65/70/-2/0.61/…/.. 28 SSE RMY 30 TSTM
7/28 81/65/73/+1/0.11/…/.. 36 S RMY 40 TSTM
7/29 78/60/69/-3/0.00/…/.. 22 WNW RMY 24
7/30 78/59/69/-3/0.00/…/.. 16 W RMY 18
7/31 80/61/71/-1/0.00/…/.. 27 S RMY 29
8/1 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 0.98 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 AUGUST 1
HIGH 97F IN 1917
LOW 49F IN 1891
PRECIP 3.61 INCHES IN 1927
PEAK GUST 41 MPH NNW IN 1985
RECORDS FOR AUGUST 2
HIGH 101F IN 1975 [STATION RECORD MAXIMUM – Tied with 8/10/1949]
LOW 50 IN 1929, 1947
PRECIP 1.59 INCHES IN 1946
PEAK GUST 50 MPH SW IN 2006
TODAY’S REPORT PREPARED BY: Robert Skilling
