BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, MAY 8, 2005
ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted]
Today's observations:
7 A.M. EST
Weather: Overcast with drizzle and fog
Temperature: 39F, Dew point: 38F, Wind: NNW at 15 kt
Sea-level pressure: 29.75 inches Hg, rising
Visibility: 5 miles
BHO SA 1155 5 OVC 5L-F 074/39/38/3315G29/975/
PK WND 3330/33/ 8/4/// 53012 70071 10040 20039
10 A.M. EST
Weather: Overcast stratocumulus
Temperature: 43F, Dew point: 39F, Wind: NNW at 20 kt
Sea-level pressure: 29.78 inches Hg, rising
Visibility: 10 miles
BHO SA 1455 15 OVC 10 084/43/39/3320G31/978/
PK WND 3334/16/ 8/4// 53010 6000/
WEATHER SUMMARY FOR SATURDAY, MAY 7
TEMPERATURE (DEGREES F)
MAX.....44 NORMAL.....64 ASOS.....43 AT 8:41 A.M.
MIN.....39 NORMAL.....44 ASOS.....39 AT MIDNIGHT P.M.
MEAN....42 NORMAL.....54
DEPARTURE FROM 30-YEAR NORMAL.....-12
TOTAL DEPARTURE FOR THE MONTH.....-32 (-4.6 DEGREES/DAY)
HEATING DEGREE DAY INFORMATION
TOTAL HEATING DEGREE DAYS FOR FRIDAY.........23 DEPARTURE....+12
TOTAL HEATING DEGREE DAYS FOR THE MONTH.....115 DEPARTURE....+32
TOTAL HEATING DEGREE DAYS FOR THE SEASON...6038 DEPARTURE....-74
TOTAL HEATING DEGREE DAYS FOR LAST YEAR....6042 DIFFERENCE...-27
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........58 N AT 8:40 A.M.
AEROVANE.........62 N AT 8:38 A.M.
ASOS.............48 N AT 10:50 A.M.
FASTEST MILE FOR YESTERDAY..........44 N AT 8:40 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......35 N AT 11:24 A.M.
AVERAGE WIND SPEED AND DIRECTION...22.2 NNW
ASOS............21.6
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.71 DEPARTURE....+0.59
ASOS..............0.69
TOTAL PRECIPITATION FOR THE MONTH..........1.49 DEPARTURE....+0.61
ASOS..............1.46
TOTAL PRECIPITATION FOR THE YEAR..........22.58 DEPARTURE....+3.90
ASOS.............21.05*
*EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28.
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE......0.0
TOTAL SNOWFALL FOR THE MONTH................0.0 DEPARTURE.....-0.1
TOTAL SNOWFALL FOR THE SEASON.............119.4 DEPARTURE....+59.3
PRELIMINARY CLIMATE SUMMARY FOR MAY 2005......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
5/1 57/44/51/-1/0.14/.../.. 33 MPH WNW
5/2 63/39/51/-1/0.05/.../.. 43 MPH S
5/3 58/38/48/-5/0/.../.. 30 MPH WSW
5/4 59/40/50/-3/T/0/.../.. 21 MPH E
5/5 60/38/49/-4/0/0/.../.. 23 MPH E
5/6 54/42/48/-6/0.08/0/.../.. 26 MPH NNE
5/7 44/39/42/-12/.../0/000/00/ 58 MPH N
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MAY 8
HIGH 89F IN 2000
LOW 29F IN 1956
PRECIP 1.48 INCHES IN 1886
SNOWFALL TRACE IN 1898, 1947
PEAK GUST 68e MPH NNW IN 1943
RECORDS FOR MAY 9
HIGH 93F IN 2000
LOW 31F IN 1947
PRECIP 2.72 INCHES IN 1954
SNOWFALL 5.0 INCHES IN 1977
PEAK GUST 70e MPH NE IN 1977
TODAY'S REPORT BY: Andrew Hoell