Tuesday, April 15, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, APRIL 15, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
MONDAY’S AVERAGE TEMPERATURE OF 64 SITS 18 DEGREES
ABOVE THE 30-YEAR NORM…DAILY AVERAGE WIND SPEED
OF 27.5 MPH IS WINDIEST SINCE JANUARY 2013
The high temperature of 73F was far below the record high
of 80F set for yesterday’s date in 1945. Monday’s midnight
to midnight minimum of 55F ties the highest minimum recorded
for this date set back in 1909.
The winds continue to roar from the S to SW with rain on the
way this afternoon following a brief period of clearing late
this morning. By the 7:00 AM EST observation 0.07 inches of
rain had fallen ahead of what is expected to be a significant
soaking this evening.
Rain, fog and low stratus increased once more by the 1:00 PM EST
observation with winds gusting to a peak of 55 MPH so far.
Today’s Observations:
7 A.M.
Weather: Light rain and fog
Temperature: 57F; Dew Point: 57F; Wind: S at 19G31 kts.
Wind: Peak wind from S @ 33 kts @ 6:07 A.M.
Sea-level pressure: 29.84 ins. Hg, falling unsteadily
Visibility: 1 mile, 1/2 mile NNE-ENE, fog and rain
6-hr max temp: 58F
6-hr min temp: 56F
24-hr precip: 0.07 inch
BHO SA 1155 W4 X 1R-F 106/57/57/1921G31/984/ VSBY NNE-ENE ½ MI
PK WND 1933/07/ 8//// 57014 ASOS 60008 70008 MANUAL 70007
10058 20056
10 A.M.
Weather: Scattered cumulus fractus, broken stratocumulus,
overcast stratus, distant showers in all directions
Temperature: 61F; Dew Point: 58F; Wind: S at 24G36 kts,
Wind: Peak wind gust 39 kts S @ 9:39 A.M.
Sea-level pressure: 29.78 ins. Hg, falling, then more slowly
Visibility: 10 miles, distant showers and fog all directions
BHO SA 1455 10 SCT E31 BKN 42 OVC 10 085/61/58/1824G36/978/
SHWRS DSNT ALQDS FG DSNT ALQDS PK WND 1839/39/ 8/7// 56021
1 P.M.
Weather: Light rain and fog, windy
Temperature: 59F; Dew Point: 58F; Wind: S at 31G40 kts,
Peak wind: 48 from S @ 12:08 p.m.
Sea-level pressure: 29.68 ins. Hg, falling then falling more slowly
Visibility: 3 miles, obscured by rain and fog
6-hr max temp: 66F
6-hr min temp: 57F
6-hr precip: 0.12 inches
BHO SA 1755 E13 BKN 29 OVC 3R-F 052/59/58/1831G40/968/ PK WND 1748/08/
8/7// 560033 ASOS 60012 MANUAL 60012 10066 20057
WEATHER SUMMARY FOR MONDAY, APRIL 14, 2014
TEMPERATURE (DEGREES F)
MAX…..73 NORMAL…..55
MIN…..55 NORMAL…..37
MEAN….64 NORMAL…..46
DEPARTURE FROM 30-YEAR NORMAL……………………+18
TOTAL DEPARTURE FOR THE MONTH……………………+78 [+5.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………1 DEPARTURE………-17
TOTAL HEATING UNITS FOR THE MONTH………….222 DEPARTURE………-78
TOTAL HEATING UNITS FOR THE SEASON………..5849 DEPARTURE………+65
TOTAL HEATING UNITS LAST SEASON TO DATE……5308 DIFFERENCE…….+541
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………55 SW AT 1:10 P.M.
AERO…………………..N/A
ASOS…………………..59 SSW AT 1:16 P.M.
DAVIS………………….55 SW AT 1:15 P.M. RMY 62
FASTEST MILE FOR YESTERDAY………………..43 SW AT 1:18 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..44 SSW AT 1:16 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….43 SSW AT 1:16 P.M.
AVERAGE WIND SPEED AND DIRECTION…………27.5 SW
ASOS…………………25.9
DAVIS………………..25.1 SSW [201 deg]
* last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.07 DEPARTURE………….-0.09
ASOS…………..0.08
TOTAL PRECIPITATION FOR THE MONTH……….1.28 DEPARTURE………….-1.08
ASOS…………..1.27
TOTAL PRECIPITATION FOR THE YEAR……….16.40 DEPARTURE………….+0.04
ASOS………….16.81
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…………..-0.1
TOTAL SNOWFALL FOR THE MONTH…………….0.0 DEPARTURE…………..-2.1
TOTAL SNOWFALL FOR THE SEASON…………..84.8 DEPARTURE………….+23.0
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/-1/0.31/0.0/255/33 26 ESE AERO N/A RMY 25
4/5 51/33/42/-1/0.19/0.0/186/24 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/+9/0.05/0.0/187/24 28 SSE AERO N/A RMY N/A
4/8 62/41/52/+8/0.61/0.0/016/02 45 W AERO N/A RMY 44
4/9 60/36/48/+4/0.00/0.0/707/90 35 NW AERO N/A RMY 36
4/10 57/33/45/0/0.00/0.0/742/94 38 S AERO N/A RMY 39
4/11 70/45/58/+13/T/0.0/…/.. 32 S AERO N/A RMY N/A
4/12 68/44/56/+11/0.00/0.0/…/.. 28 W AERO N/A RMY 28
4/13 65/45/55/+10/0.04/0.0/…/.. 35 S AERO N/A RMY N/A
4/14 73/55/64/+18/0.00/0.0/…/.. 55 SW AERO N/A RMY 62
4/15 morning low temp: 56F; the normal low is now 38F
DAILY RECORDS FOR APRIL 2014
4/14 – DAILY RECORD HIGH MINIMUM TEMPERATURE OF 55F;
ties previous record of 55F set in 1909.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR APRIL 15
HIGH 81 IN 1896
LOW 23 IN 1943
PRECIP 1.75 IN. IN 2007
SNOWFALL 1.0 IN. IN 1916, 1962
PEAK GUST 66 MPH E IN 2007
RECORDS FOR APRIL 16
HIGH 89 IN 2012
LOW 23 IN 1943
PRECIP 2.45 IN. IN 1929
SNOWFALL 2.0 IN. IN 1904, 1962
PEAK GUST 73 MPH E IN 2007
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
