Climatological Report (Monthly)
Issued by NWS Portland, ME

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
000
CXUS51 KGYX 031124
CLMPWM

PWMCLMPWM 000
TTAA00 KGYX 020306


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
714 AM EDT WED SEP 3 2014

...................................

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2014 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2014 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2014 /FOR SNOWFALL/

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             103   08/02/1975
 LOW               33   08/31/1965
HIGHEST            88   08/27        90      -2       89  08/22
LOWEST             49   08/19        47       2       49  08/06
AVG. MAXIMUM     76.4              77.7    -1.3     78.1
AVG. MINIMUM     57.1              58.2    -1.1     57.3
MEAN             66.7              68.0    -1.3     67.7
DAYS MAX >= 90      0               1.1    -1.1        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        15.22   1991
 MINIMUM         0.27   1947
TOTALS           8.56              3.14    5.42     1.74
DAILY AVG.       0.28              0.10    0.18     0.06
DAYS >= .01         9               9.3    -0.3        7
DAYS >= .10         5               5.1    -0.1        4
DAYS >= .50         3               1.6     1.4        2
DAYS >= 1.00        2               0.7     1.3        0
GREATEST
 24 HR. TOTAL    6.44   08/13 TO 08/14

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0
SNOWDEPTH AVG.      0
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.0
 STORM TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL      24                28      -4       11
 SINCE 7/1         24                45     -21       18
COOLING TOTAL      83               120     -37      102
 SINCE 1/1        298               328     -30      417
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    28/070    DATE  08/13
HIGHEST GUST SPEED/DIRECTION    39/060    DATE  08/13

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 4
RAIN                      3     LIGHT RAIN                13
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       16
FOG W/VIS <= 1/4 MILE     2     HAZE                       4

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

AFTER A THREE MONTH STRETCH OF ABOVE NORMAL TEMPERATURES PORTLAND
REVERTED BACK TO BELOW NORMAL IN AUGUST. THIS WAS THE 9TH BELOW
NORMAL MONTH IN THE LAST 13 MONTHS DATING BACK TO AUGUST OF 2013.
MOST OF THE MONTH SAW COOLER THAN NORMAL WEATHER WITH THE
TEMPERATURE NOT RISING ABOVE 81 DEGREES FOR THE FIRST 3 WEEKS OF THE
MONTH. IT WASN`T UNTIL THE FINAL WEEK OF THE MONTH THAT WARM WEATHER
FINALLY ARRIVED. THE WARMEST TEMPERATURE OF THE YEAR SO FAR OCCURRED
ON AUGUST 27 WHEN THE TEMPERATURE ROSE TO 88 DEGREES. THE BIGGEST
WEATHER STORY OF THE MONTH WAS NO DOUBT THE RECORD RAINFALL ON THE
EVENING OF AUGUST 13. MORE THAN 6 INCHES OF RAIN FELL IN A SPAN OF
JUST A FEW HOURS LEADING TO SIGNIFICANT FLASH FLOODING IN THE CITY.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 66.7 DEGREES WHICH WAS 1.3
DEGREES BELOW NORMAL. THIS WAS THE COOLEST AUGUST SINCE 2008 AND THE
SECOND COOLEST SINCE 1994. THE WARMEST AUGUST ON RECORD WAS 1969
WITH AN AVERAGE TEMPERATURE OF 71.3 DEGREES. THE COOLEST WAS 1964
WITH AN AVERAGE OF ONLY 61.1 DEGREES.

THE WARMEST TEMPERATURE OF THE MONTH WAS 88 DEGREES ON THE 27TH.
THIS WAS ALSO THE WARMEST DAY OF THE YEAR SO FAR. IF PORTLAND DOES
NOT REACH 90 DEGREES THIS YEAR IT WILL BE THE FIRST TIME THIS HAS
HAPPENED SINCE 2008. NORMALLY PORTLAND SEES 4.6 DAYS PER YEAR AT 90
OR ABOVE. ONLY 6 TIMES HAS PORTLAND FAILED TO REACH 90 DEGREES IN A
YEAR. THIS IS ROUGHLY 8 PERCENT OF ALL YEARS IN THE PREVIOUS 73
YEARS OF TEMPERATURE RECORDS AT PORTLAND. BELOW IS A LIST OF THE
COOLEST YEARLY MAXIMUM TEMPERATURES AT PORTLAND.

COOLEST YEARLY MAXIMUM TEMPERATURES
RANK    TEMP    YEAR
1       86      1996
2       87      1972
3       88      2014 <===
        88      2008
        88      1986
        88      1974
        88      1962
7       90      2000
        90      1992

A TOTAL OF 8.56 INCHES OF RAIN FELL IN AUGUST. THIS WAS MORE THAN
TWICE THE NORMAL RAINFALL AND 5.42 INCHES ABOVE NORMAL. THIS WAS THE
SECOND WETTEST AUGUST ON RECORD. MOST OF THE RAIN DURING THE MONTH
FELL ON THE 13TH WHEN MORE THAN 6 INCHES OF RAIN WAS RECORDED DURING
THE EVENING HOURS AND LED TO SIGNIFICANT FLASH FLOODING IN THE CITY.
ALTHOUGH AUGUST 2014 WAS THE SECOND WETTEST ON RECORD AT PORTLAND...
IT WAS BARELY HALF THE RECORD AUGUST RAINFALL SET IN 1991. HURRICANE
BOB BROUGHT VERY HEAVY RAIN THAT HELPED SET THE RECORD AUGUST
RAINFALL OF 15.22 INCHES. THE DRIEST AUGUST ON RECORD WAS 1947 WHEN
ONLY 0.27 INCHES FELL. THE FOLLOWING TABLE LISTS THE TOP TEN WETTEST
AUGUST`S IN PORTLAND`S 144-YEAR HISTORY OF RAINFALL RECORDS.

MOST RAIN IN AUGUST
RANK    INCHES  YEAR
1       15.22   1991
2       8.56    2014 <===
3       8.30    1946
4       8.14    1892
5       7.90    1877
6       6.97    1872
7       6.56    1887
8       6.28    2008
9       6.21    2012
10      6.14    2004

THE TOTAL PRECIPITATION FOR THE YEAR SO FAR STANDS AT 38.20 INCHES
THANKS TO A VERY WET JULY ALSO. THIS RANKS AS THE NINTH WETTEST
START TO THE YEAR. THE FOLLOWING TABLE LISTS THE WETTEST YEARS ON
RECORD THROUGH THE END OF AUGUST.

WETTEST YEARS (THROUGH THE END OF AUGUST)
RANK    INCHES  YEAR
1       44.62   1979
2       41.07   1884
3       40.47   1991
4       40.05   2006
5       39.32   1983
6       39.26   2009
7       38.92   1922
8       38.49   1920
9       38.20   2014 <===
10      37.93   1998

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN AUGUST 2014...
DATE  RECORD                              PREVIOUS
13    6.43 - GREATEST PRECIPITATION       2.38 IN 2004

$$

KIMBLE



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.