BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, SEPTEMBER 11, 2015  ALL TIMES ARE IN EASTERN STANDARD TIME MEASURABLE RAIN FINALLY RETURNS TO BLUE HILL, 0.85 INCHES FALL THROUGH 7:00 AM EST THIS MORNING BLUE HILL OBSERVATORY ASKS FOR YOUR SUPPORT FOR OUR KICKSTARTER FUNDRAISER FOR A NEW  AEROVANE ANEMOMETER- PLEASE SUPPORT BY VISITING: https://www.kickstarter.com/projects/1451380431/fund-the-future-of-climate-science-at-blue-hill-ob Rain showers, drizzle and heavier downpours came in fits and starts since yesterday morning. From 7:00 AM yesterday through 7:00 AM EST this morning, 0.85 inches of new rain have fallen, taking a chunk out of our monthly precipitation deficit, which is now just 0.37 inches drier than normal. Our annual deficit has been reduced as well, though still at 5.13 inches below normal. Fog and moderate drizzle this morning slowly gave way to peaks  over sunshine just after the 1:00 PM EST observation. An additional 0.06 inches of precipitation this morning have given a storm total of 0.91 inches. A maximum temperature of 66F had been  recorded by that time as well.  Today's Observations: 7 A.M. Weather: Moderate drizzle, fog Temperature: 60F; Dew Point: 60F; Wind: NNW at 10G16 kts, Sea-level pressure: 29.73 ins. Hg, falling, then rising and higher  Visibility: 1/4 of a mile, moderate fog and drizzle obscuring 6-hr Max temp: 62F 6-hr Min temp: 60F 24-hr precip: 0.85 ins. BHO SA 1155 W3 X 1/4LF 069/60/60/3410G16/973/ 8//// 53010 ASOS 60041 70084 MANUAL 600// 70085 10062 20060  10 A.M. Weather: Light drizzle, fog Temperature: 60F; Dew Point 60F; Wind: NNW at 8 kts,  Sea-level pressure: 29.78 ins. Hg, rising, then more slowly Visibility: 1/4 of a mile, except 3/4 of a mile ENE-SSE, obscured by fog and light drizzle 3-hr precip: 0.06 ins.    BHO SA 1455 W3 X 1/4L-F 086/60/60/3408/978/ VSBY ENE-SSE 3/4 MI/ 8//// 51017 ASOS 60007 MANUAL 60006 1 P.M. Weather: Overcast stratocumulus, breaks in overcast NW, showers distant ESE-SSE Temperature: 65F; Dew Point: 62F; Wind: estimated N at 5 kts Wind Speed: Light Sea-level pressure: 29.76 ins. Hg, falling, then rising but lower still  Visibility: 60 miles, except 30 miles ESE-SSE, obscured by distant showers 6-hr Max: 66F 6-hr Min: 59F 6-hr precip: 0.06 inches BHO SA 1755 E12 OVC 60 078/65/62/E3605/976/ VSBY ESE-SSE 30 MI SHWRS DSNT ESE-SSE BINOVC NW WND LGT/ 8/500 55008 ASOS 60007 MANUAL 60006 10066 20059   SUMMARY FOR THURSDAY, SEPTEMBER 10, 2015     TEMPERATURE (DEGREES F) MAX.....73   NORMAL.....74  MIN.....62   NORMAL.....57  MEAN....68   NORMAL.....65    DEPARTURE FROM 30-YEAR NORMAL........................+3 TOTAL DEPARTURE FOR THE MONTH.......................+73  [+7.1 DEGREES/DAY]   COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY...............3   DEPARTURE..........+0 TOTAL COOLING UNITS FOR THE MONTH..............90   DEPARTURE.........+58 TOTAL COOLING UNITS FOR THE SEASON............756   DEPARTURE........+187 TOTAL COOLING UNITS LAST SEASON TO DATE.......561   DIFFERENCE.......+195   PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...................29  NE AT 10:29 P.M.                      ASOS........................29  NE AT 10:28 P.M.                      DAVIS.......................27  NE AT  1:57 P.M. RMY N/A FASTEST MILE FOR YESTERDAY.....................20  NE AT 10:31 P.M.  MAXIMUM 2-MINUTE ASOS AVERAGE..................21  NE AT 10:30 P.M.   MAXIMUM 2-MINUTE DAVIS AVERAGE.................20  NE AT 10:29 P.M.   AVERAGE WIND SPEED AND DIRECTION..............12.0 ENE                      ASOS.......................12.1                     DAVIS......................10.5 NE [053 DEG]  PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M.....0.85  DEPARTURE.....+0.72                          ASOS...............0.84 TOTAL PRECIPITATION FOR THE MONTH...........0.85  DEPARTURE.....-0.37                          ASOS...............0.84 TOTAL PRECIPITATION FOR THE YEAR...........31.11  DEPARTURE.....-5.13                          ASOS................N/A *** *** ASOS annual total not available due to erroneous readings PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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 9/1  81/65/73/+5/0.00/.../..               20 SSW RMY 20 9/2  89/64/77/+9/0.00/.../..               20 SW  RMY 21   9/3  85/66/76/+9/T/.../..                  17 E   RMY N/A TSTM  9/4  72/58/65/0/0.00/.../..                31 ENE RMY N/A 9/5  77/55/66/-1/0.00/.../..               14 SW  RMY 18 9/6  87/57/72/+5/0.00/.../..               21 SSW RMY 22 9/7  92/63/78/+12/0.00/.../..              23 WSW RMY 24 9/8  97/70/84/+18/0.00/.../..              22 WSW RMY 24 9/9  92/70/81/+15/0.00/.../..              30 SSW RMY 33 9/10 73/62/68/+3/..../.../..               29 NE  RMY N/A 9/11  low since midnight is 60F; normal low is now 56F   DAILY RECORDS FOR SEPTEMBER 2015 **9/7 DAILY RECORD MAXIMUM TEMPERATURE OF 92F  TIES PREVIOUS RECORD SET IN 2007** **9/8 DAILY RECORD MAXIMUM TEMPERATURE OF 97F BREAKS PREVIOUS RECORD OF 93F SET IN 2007** **9/8 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 70F BREAKS PREVIOUS RECORD OF 69F SET IN 1999** **9/9 DAILY RECORD MAXIMUM TEMPERATURE OF 92F BREAKS PREVIOUS RECORD OF 91F SET IN 2002** **9/9 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 70F BREAKS PREVIOUS RECORD OF 69F SET IN 1999** DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated):  RECORDS FOR SEPTEMBER 11 HIGH 93F IN 1983, 2013 LOW 37F IN 1917 PRECIP 5.23 INCHES IN 1954 (HURRICANE EDNA) PEAK GUST 101 MPH NW IN 1954 (HURRICANE EDNA) RECORDS FOR SEPTEMBER 12 HIGH 92F IN 1961 LOW 42F IN 1958,1967,1985 PRECIP 2.79 INCHES IN 1960 (HURRICANE DONNA) PEAK GUST 140 MPH SSE IN 1960 (HURRICANE DONNA) TODAY'S REPORT PREPARED BY: Brian Fitzgerald