BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JANUARY 15, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
 
NEW RECORD DAILY SNOWFALL FOR YESTERDAY AT 10.3 INCHES
HEAVY SNOW CONTINUES FROZEN TO TREES AND BRANCHES TODAY 
JANUARY TEMPERATURES STILL +8 DEGREES AT MID-MONTH
 
Some additional light snow yesterday afternoon added another
0.1 inch to the record 10.2 inches reported yesterday; the final 
record daily total for January 14th is now 10.3 inches 
surpassing the previous 9.0 inches in 1999.
 
A heavy load of frozen ice and snow continues to put a 
lot of stress on trees and branches. Overcast weather 
with very high humidity and temperatures in the low to 
mid 20's this morning was not allowing any melting. 
The total melted precipitation for yesterday's storm 
was 1.45 inches for the standard gage and also for ASOS. 
 
Very mild weather during the first half of January has 
left the average monthly temperature at 35 degrees or 
8 degrees warmer than normal with yesterday's average
still at +4 degrees above our normal of 26F.    
 
Today's observations:
 
7 A.M.   
Weather:Overcast stratocumulus, break along horizon 
to the northeast thru southeast  
Temperature: 25F, Dew point: 23F, Wind: W @ 10 kts 
Sea-level pressure: 29.77 inches Hg, steady
Visibility: 20 miles, thin fog 
6-hour min temp: 21F 
24-hourly precip: 0.71 inch
24-hourly snowfall: 4.5 ins.  
24-hourly asos precip: 0.73 in. 
Snow on ground: 9 inches
BHO SA 1155 E28 OVC 20 080/25/23/2610/977/ CU OFFSHR DSNT NE-SE 
BINOVC DSNT ALG HRZN NNE-SE THN F TOTAL NEW SNW PST 24 HRS 4.5 INS 
EVENT TOTAL 10.3 INS/ 8/8// 4/009 55003 ASOS 70073 
MANUAL 70071 10025 20021 
  
10 A.M.
Weather: Overcast stratocumuls, few cumulus distant NE-SE
breaks in overcast N-E   
Temperature: 28F, Dew point: 25F, Wind: W at 6 kts
Sea-level pressure: 29.78 inches Hg, rising
Visibility: 20 miles 
3-hourly snowfall: trace 
3-hourly precip: trace 
BHO SA 1455 E20 OVC 20 086/28/25/2706/978/ FEW CU DSNT NE-SE 
BINOVC DSNT N-E HIER CLDS VSBL DSNT S BRGHT SPTS IOVC THN FH 
BLO INVSN SW SNSH VRY LGT VCTY STN PST HR BE UKN/ 8/8// 53006
 
1 P.M.
Weather: Overcast statocumulus, few lower cumulus, 
small breaks in overcast  
Temperature: 30F, Dew point: 26F, Wind: W at 7 kts
Sea-level pressure: 29.73 inches Hg, falling
Visibility: 20 miles, 35 miles NE 
6-hourly max. temp. 30F
6-hourly snowfall: trace
6-hourly precip: trace 
BHO SA 1755 E50 OVC 20 067/30/26/2807/973/ FEW LWR CU/SC 
SML BINOVC LGT HZ VSBY NE 35/ 8/8// 58019 10030 20025 
 
WEATHER SUMMARY FOR MONDAY, JANUARY 14
 
TEMPERATURE (DEGREES F)
MAX.....36    NORMAL.....34 
MIN.....24    NORMAL.....18
MEAN....30    NORMAL.....26
DEPARTURE FROM 30-YEAR NORMAL..........+ 4 
TOTAL DEPARTURE FOR THE MONTH.........+122 [+8.5 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............35  DEPARTURE......- 4 
TOTAL HEATING UNITS FOR THE MONTH...........419  DEPARTURE.....-121 
TOTAL HEATING UNITS FOR THE SEASON.........2586  DEPARTURE.....-279
TOTAL HEATING UNITS LAST SEASON TO DATE....2213  DIFFERENCE....+373  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............37 NE AT 3:28 A.M. *   
                   AEROVANE.............36 NE AT 3:28 A.M. *  
                   ASOS.................36 NE AT 5:18 A.M. *
                   DAVIS................35 NE AT 3:17 A.M.  
FASTEST MILE FOR YESTERDAY..............27 NE AT 3:23 A.M. *   
MAXIMUM 2-MINUTE ASOS AVERAGE...........N/A** 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........26 NE AT 3:24 A.M.  
AVERAGE WIND SPEED AND DIRECTION......  13.5 NNW 
                   ASOS.................N/A**
                   DAVIS................12.3 N [360 deg]
* last of several occurrences...
** ASOS wind malfunction 
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.71  DEPARTURE.....+0.55    
                         ASOS..............0.73 
TOTAL PRECIPITATION FOR THE MONTH..........3.28  DEPARTURE.....+1.12 
                         ASOS..............3.37  
TOTAL PRECIPITATION FOR THE YEAR...........3.28  DEPARTURE.....+1.12 
                         ASOS..............3.37
 
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........4.5  DEPARTURE.....+4.0
TOTAL SNOWFALL FOR THE MONTH...............12.1  DEPARTURE.....+5.1
TOTAL SNOWFALL FOR THE SEASON..............42.6  DEPARTURE....+22.0
 
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 2008 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
 
1/1   38/28/33/+6/0.24/1.8/055/10   30 E   
1/2   29/7/18/-9/T/T/006/01         43 NW   Aero 43 MPH NW
1/3   11/2/7/-20/0/0/539/98         35 NW
1/4   30/2/16/-11/0/0/253/46        31 SSW
1/5   38/24/31/+4/0/0/292/53        28 SSW
1/6   47/34/41/+15/0/0/133/24       27 SSW 
1/7   54/39/47/+21/0/0/.../..       29 S 
1/8   65/45/55/+29/0/0/.../..       37 S 
1/9   59/42/51/+25/0.01/0/.../..    48 S
1/10  47/35/41/+15/0/0/.../..       35 W
1/11  55/35/45/+19/1.58/T/0/0       46 S    Aero 48 MPH S
1/12  47/32/40/+14/0/0/.../..       28 W
1/13  42/30/36/+10/0/0/.../..       33 ENE 
1/14  36/24/30/+4/1.45/10.3/000/00  37 NE   Aero 36 MPH NE
 
1/15  morning low temp. 21F; normal low is now 18F
      total snow on ground at 7 a.m. 9 inches 
 
NEW DAILY RECORDS FOR JANUARY 2008:
 
1/8 - New record high temperature of 65 deg; 
the previous record, 59 deg. in 1930
New record high minimum temperature of 45 deg; 
the previous record, 41 deg. in 1930, 1935, 1967
 
1/9 - New record high minimum temperature of 42 deg;
the previous record, 39 deg. in 1937, 1956.
 
1/11 - New record rainfall of 1.58 inches; surpasses
previous record of 1.14 inches in 1956
 
1/14 - New record daily snowfall of 10.3 inches; surpasses 
previous record of 9.0 inches in 1999.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JANUARY 15
HIGH 64F IN 1995
LOW -16F IN 1957 [RECORD FOR MONTH]
PRECIP 2.63 INS. IN 1958
SNOWFALL 8.8 INS. IN 1983
PEAK GUST 69e MPH SE IN 1940
 
RECORDS FOR JANUARY 16
HIGH 63F IN 1995
LOW -12F IN 2004
PRECIP 1.32 INS. IN 1936
SNOWFALL 14.0 INS. IN 1965
PEAK GUST 79 MPH WNW IN 1960
 
TODAY'S REPORT PREPARED By: Robert Skilling