Wednesday, April 9, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, APRIL 9, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
TEMPERATURES REACH 60’S YESTERDAY (62F) FIRST THIS YEAR
LAST 60-DEGREE READINGS WAS 63F ON DECEMBER 22ND!
The temperature, which reached 59 degrees by 2 P.M. yesterday,
continued to rise to 62F by 4 P.M. EDT. The last time we
recorded a 60-degree reading was 63F on December 22nd. This
was part of a pre-Christmas thaw which melted away 11 inches
of snow on the ground December 18, to no snow on the ground
for Christmas Day. Over the last three months our highest
temperature did not exceed 57F.
Temperatures again rose to 60F briefly early this afternoon
with the air becoming drier as dew points dropped to the
upper 20’s.
Today’s Observations:
7 A.M.
Weather: Clear, cirrus/dense cirrus layer extending NE-S and moving
away to the east (receding)
Temperature: 41F; Dew Point: 33F; Wind: WNW at 7 kts,
Wind: Direction variability W-NW
Sea-level pressure: 29.64 ins. Hg, rising then more rapidly
Visibility: 55 miles, distant haze
6-hr max temp: 40F
6-hr min temp: 36F
24-hr precip: 0.20 inch
BHO SA 1155 CLR 55 037/41/33/3007/964/ CI/DNS LYR RCDNG XTDNG
ENE-SE-S DSNT HZ WND 26V32/ 8/002 53023 ASOS 70021 MANUAL 70020
10040 20036
10 A.M.
Weather: Scattered cumulus fractus/cumulus forming all quadrants
Temperature: 53F; Dew Point: 34F; Wind: W at 8 kts,
Wind: Direction variability from WSW to NW
Sea-level pressure: 29.63 ins. Hg, falling, then rising slightly
Visibility: 50 miles, distant haze
BHO SA 1455 38 SCT 50 035/53/34/2708/963/ CUFRA/CU FRMG ALQDS
WND 24V32/ 8/100 55002
1 P.M.
Weather: Broken stratocumulus generated by spreading out of
cumulus, cumulus also present
Temperature: 58F; Dew Point: 31F; Wind: NW at 12G19 kts,
Wind: Direction variability from WSW to NNW
Sea-level pressure: 29.63 ins. Hg, falling then rising slightly
Visibility: 60 miles, light distant haze
6-hr max temp: 60F
6-hr min temp: 41F
BHO SA 1755 E55 BKN 60 033/58/31/3112G19/963/ SCCG/CU ALQDS
LGT DSNT HZ WND 25V33/ 8/400 55002 10060 20041
WEATHER SUMMARY FOR TUESDAY, APRIL 8, 2014
TEMPERATURE (DEGREES F)
MAX…..62 NORMAL…..53
MIN…..41 NORMAL…..35
MEAN….52 NORMAL…..44
DEPARTURE FROM 30-YEAR NORMAL…………………….+8
TOTAL DEPARTURE FOR THE MONTH……………………+23 [+2.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..13 DEPARTURE……….-8
TOTAL HEATING UNITS FOR THE MONTH………….158 DEPARTURE………-23
TOTAL HEATING UNITS FOR THE SEASON………..5785 DEPARTURE……..+120
TOTAL HEATING UNITS LAST SEASON TO DATE……5200 DIFFERENCE…….+585
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………45 W AT 8:02 P.M.
AERO…………………..N/A
ASOS…………………..46 W AT 8:03 P.M.
DAVIS………………….43 W AT 9:23 P.M. RMY 44
FASTEST MILE FOR YESTERDAY………………..33 W AT 8:03 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE……………..33 W AT 8:03 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….30 W AT 7:14 P.M.
AVERAGE WIND SPEED AND DIRECTION…………17.0 SSW
ASOS…………………16.4
DAVIS………………..15.3 SSW [200 deg]
* Last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.20 DEPARTURE………….+0.04
ASOS…………..0.21
TOTAL PRECIPITATION FOR THE MONTH……….1.16 DEPARTURE………….-0.19
ASOS…………..1.15
TOTAL PRECIPITATION FOR THE YEAR……….16.28 DEPARTURE………….+0.93
ASOS………….16.69
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…………..-0.2
TOTAL SNOWFALL FOR THE MONTH…………….0.0 DEPARTURE…………..-1.4
TOTAL SNOWFALL FOR THE SEASON…………..84.8 DEPARTURE………….+23.7
PRELIMINARY CLIMATE SUMMARY FOR APRIL 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system 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
4/1 48/31/40/-1/0.00/0.0/694/91 29 NNE AERO N/A RMY N/A
4/2 56/34/45/+4/0.00/0.0/452/69 22 WSW AERO 20 MPH WSW RMY N/A
4/3 55/36/46/+4/0.00/0.0/707/92 23 NNW AERO 22 MPH NW RMY 25
4/4 47/35/41/-1/…/0.0/255/33 26 ESE AERO N/A RMY 25
4/5 51/33/42/-1/…/0.0/186/24 39 WNW AERO N/A RMY 40
4/6 58/29/44/+1/0.00/0.0/755/97 25 W AERO N/A RMY N/A
4/7 59/44/52/+9/…./…/…/.. 28 SSE AERO N/A RMY N/A
4/8 62/41/52/+8/…./…/…/.. 45 W AERO N/A RMY 44
4/9 morning low temp: 36F; the normal low is now 35F
DAILY RECORDS FOR APRIL 2014
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR APRIL 9
HIGH 83 IN 1991
LOW 18 IN 1888
PRECIP 2.38 IN. IN 1935
SNOWFALL 11.0 IN. IN 1917
PEAK GUST 72 MPH WNW IN 1962
RECORDS FOR APRIL 10
HIGH 83 IN 1922
LOW 20 IN 1985
PRECIP 2.40 IN. IN 1935
SNOWFALL 10.1 IN. IN 1996
PEAK GUST 66 MPH WNW IN 1967
TODAY’S REPORT PREPARED BY: Robert Skilling
