BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, APRIL 4, 2004
ALL TIMES ARE IN EASTERN STANDARD TIME


Today's observations:

7 A.M.

BHO SA 1155 60 SCT 80 OVC 3F 964/39/39/3304/942/
FEW BINOVC ALQDS GF ALQDS WND L/V/ 8/6// 58007 70000 10039 20036
        METAR KBHO 041155Z VRB04KT 3SM FG SCT60 OVC80 04/04 A2944
        RMK SLP968 8/6// T00390039 70000 58007 10039 20019

10 A.M.

BHO SA 1455 20 OVC 2RW-F 963/41/39/1905/942/
WND LGT RB04/ 8/6// 58001 6003/
METAR KBHO 041455Z VRB05KT 2SM SHRA FG OVC020 05/04 A2942
RMK RB04 SLP963 8/6// T00480036 60003 58001

1 P.M.

BHO SA 1755 E15 BKN E30 OVC 5F 945/44/41/1406/937/
WND L/V RE10/ 8/6// 58018 6007/ 10044 20039
METAR KBHO 041755Z VRB06KT 5SM FG BKN15 OVC30 07/05 A2937
RMK RAE10 SLP945 8/6// T00650052 P0001 60007 58018 10069 20039



WEATHER SUMMARY FOR SATURDAY, APRIL 3:

TEMPERATURE (DEGREES F)
MAX.....38    NORMAL.....51    ASOS.....38 AT 11:49 AM
MIN.....35    NORMAL.....33    ASOS.....35 AT 06:55 AM
MEAN....37    NORMAL.....42
DEPARTURE FROM 30-YEAR NORMAL.....-5
TOTAL DEPARTURE FOR THE MONTH.....-12  (-4.0 DEGREES/DAY)

HEATING DEGREE DAYS
TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......28   DEPARTURE.....+5
TOTAL HEATING DEGREE DAYS FOR THE MONTH.......28   DEPARTURE....+12
TOTAL HEATING DEGREE DAYS FOR THE SEASON....5574   DEPARTURE....+40
TOTAL HEATING DEGREE DAYS FOR LAST SEASON...5858   DIFFERENCE..-312


PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........25 NE AT 10:16 A.M.
                   AEROVANE.........25 NE AT  8:50 A.M.
                   ASOS.............22 N  AT 10:17 A.M.
FASTEST MILE FOR YESTERDAY..........15 NE AT  8:31 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......16 NE AT  9:03 A.M.
AVERAGE WIND SPEED AND DIRECTION...8.4 N
                   ASOS............9.0


PRECIPITATION (INCHES) THROUGH THIS MORNING
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....T      DEPARTURE....-0.15
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........3.77   DEPARTURE....+3.17
                         ASOS..............3.54
TOTAL PRECIPITATION FOR THE YEAR..........11.44   DEPARTURE....-2.49
                         ASOS.............10.42

SNOWFALL (INCHES) THROUGH THIS MORNING
TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.0   DEPARTURE....-0.2
TOTAL SNOWFALL FOR THE MONTH................0.0   DEPARTURE....-0.6
TOTAL SNOWFALL FOR THE SEASON..............57.5   DEPARTURE....+4.5


PRELIMINARY CLIMATE SUMMARY FOR APRIL 2004......CALENDAR DAY DATA
DATA REPORTED:
DATE  MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

4/1  41/36/39/-2/..../0.0/0/0     44 MPH NE
4/2  37/36/37/-5/..../0.0/0/0     41 MPH NNE
4/3  38/35/37/-5/   T/0.0/0/0     25 MPH NE


DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR APRIL 04
HIGH      71 IN 1950
LOW       12 IN 1954
PRECIP    1.45 INCHES IN 1987
SNOWFALL  3.7 INCHES IN 1975
PEAK GUST 80 MPH WNW IN 1963

RECORDS FOR APRIL 05
HIGH      81 IN 1928
LOW       15 IN 1995
PRECIP    2.15 INCHES IN 1987
SNOWFALL  4.0 INCHRD IN 1898
PEAK GUST 76 MPH WNW IN 1963


TODAY'S REPORT BY: Andrew Hoell