BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, OCTOBER 17, 2014 ALL TIMES ARE IN EASTERN STANDARD TIME UNSEASONABLY WARM AND HUMID WEATHER OF YESTERDAY CONTINUED INTO THIS MORNING WITH HEAVY FOG EARLY TODAY RAINFALL WAS SHOWERY AND BRIEFLY MODERATE TO HEAVY YESTERDAY THE RAINFALL TOTAL WAS SLIGHTLY OVER A HALF INCH The unseasonably warm and very humid flow of increasingly gusty south winds produced peak speeds up to 41 MPH (RM Young) around 3 P.M. yesterday as the heavy showers moved through. Although the rain included some downpours the total was not unusually high with just 0.59 inch. The greatest amount in any clock hour was 0.24 inch ending at 4 P.M. EDT. Temperatures cooled only slowly overnight into this morning with the minimum of 58 degrees running 16 degrees warmer than normal for the date. Today's Observations: 7 A.M. Weather: Obscurement with heavy fog Temperature: 58F; Dew Point: 58F; Wind: SSW at 8 kts Sea-level pressure: 29.65 ins. Hg, rising then more quickly Visibility: 0 mile, except variable zero to 1/16 mile 6-hr max temp: 59F 6-hr min temp: 58F 24-hr precip: 0.59 inch BHO SA 1155 W2 X0VF 042/58/58/2108/965/ VSBY 0V1/16/ 8///// 53009 ASOS 70057 MANUAL 70059 10059 20058 10 A.M. Weather: Scattered stratocumulus, few moderate cumuloform tops Temperature: 63F; Dew Point: 58F; Wind: WSW at 8 kts, Sea-level pressure: 29.67 ins. Hg, rising then falling slightly Visibility: 20 miles, hazy BHO SA 1455 11 SCT 20 047/63/58/2408/967/ SC FEW MDT CUFRM TOPS HAZY/ 8/500 50005 1 P.M. Weather: Scattered cumulus, few moderate cumulus Temperature: 71F; Dew Point: 52F; Wind: SW at 14G22 kts, Sea-level pressure: 29.65 ins. Hg, falling, then more slowly Visibility: 40 miles, except 45 miles WNW 6-hr max temp: 71F 6-hr min temp: 58F BHO SA 1755 40 SCT 40 041/71/52/2214G22/965/ FEW MDT CU DSNT HZ VSBY WNW 45/ 8/200 58006 10071 20058 WEATHER SUMMARY FOR THURSDAY, OCTOBER 16, 2014 TEMPERATURE (DEGREES F) MAX.....70 NORMAL.....60 MIN.....60 NORMAL.....43 MEAN....65 NORMAL.....51 DEPARTURE FROM 30-YEAR NORMAL........................+14 TOTAL DEPARTURE FOR THE MONTH........................+42 [+2.4 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY...............0 DEPARTURE..........-14 TOTAL HEATING UNITS FOR THE MONTH.............138 DEPARTURE..........-40 TOTAL HEATING UNITS FOR THE SEASON............239 DEPARTURE..........-81 TOTAL HEATING UNITS LAST SEASON TO DATE.......249 DIFFERENCE.........-10 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................37 S AT 2:27 P.M. ASOS.......................41 S AT 2:27 P.M. DAVIS......................39 S AT 2:28 P.M. RMY 41 FASTEST MILE FOR YESTERDAY....................27 S AT 2:27 P.M. * MAXIMUM 2-MINUTE ASOS AVERAGE.................28 S AT 2:25 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE................27 S AT 2:26 P.M. AVERAGE WIND SPEED AND DIRECTION.............16.1 SSE ASOS......................15.0 DAVIS.....................14.7 SSE (160 degrees) * Last of several occurrences PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.59 DEPARTURE........+0.44 ASOS..............0.57 TOTAL PRECIPITATION FOR THE MONTH..........3.26 DEPARTURE........+0.89 ASOS..............2.24 TOTAL PRECIPITATION FOR THE YEAR..........34.85 DEPARTURE........-6.60 ASOS.............35.04 PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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 10/1 56/55/56/-1/1.63/000/00 33 NE RMY 36 10/2 55/47/51/-6/0.29/000/00 30 NE RMY N/A 10/3 54/46/50/-6/0.05/000/00 20 NE RMY 20 10/4 63/52/58/+2/0.30/000/00 30 SE RMY 32 10/5 60/45/53/-3/0.00/658/95 26 W RMY 28 10/6 66/42/54/-1/0.00/669/97 25 SSE RMY N/A 10/7 72/54/63/+8/0.01/281/38 43 S RMY 49 10/8 72/53/63/+9/0.01/562/82 40 S RMY N/A 10/9 64/48/56/+2/0.00/648/95 35 W RMY 39 10/10 63/43/53/-1/0.00/489/72 23 W RMY N/A 10/11 50/43/47/-6/0.35/.../.. 15 N RMY N/A 10/12 60/40/50/-3/0.00/.../.. 20 NW RMY N/A 10/13 61/45/53/+0/0.00/.../.. 23 S RMY 25 10/14 75/58/67/+15/0.00/.../.. 29 S RMY 31 10/15 79/62/71/+18/0.02/.../.. 32 SSW RMY 36 10/16 70/60/65/+14/0.60/000/00 37 S RMY 41 10/17 morning low temp: 58F since midnight; normal low now 42F DAILY RECORDS FOR OCTOBER 2014: 10/1 - A NEW RECORD DAILY PRECIPITATION OF 1.63 INCHES; surpasses the previous record of 1.44 ins. in 1984 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR OCTOBER 17 HIGH 86F IN 1947 LOW 25F IN 1886 PRECIP 1.87 INCHES IN 1989 SNOWFALL TRACE IN 1970 PEAK GUST 55 MPH NE IN 1964 RECORDS FOR OCTOBER 18 HIGH 82F IN 1908 LOW 26F IN 1939 PRECIP 2.79 INCHES IN 1975 SNOWFALL 3.0 INCHES IN 2009 PEAK GUST 66 MPH S IN 1967 TODAY'S REPORT PREPARED BY: Robert Skilling