Climatological Report (Monthly)
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CXUS51 KGYX 011912
CLMAUG

PWMCLMAUG 000
TTAA00 GYX 011821

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
221 PM EDT SUN OCT 01 2023

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

...THE AUGUSTA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   09/09/2002
 LOW              28   09/29/1980
                       09/28/1965
HIGHEST           90   09/05         85       5       84  09/10
                       09/07
                                                          09/12
LOWEST            45   09/28         38       7       37  09/30
AVG. MAXIMUM    74.5               70.9     3.6     70.9
AVG. MINIMUM    56.7               51.0     5.7     52.5
MEAN            65.6               61.0     4.6     61.7
DAYS MAX >= 90     2                0.5     1.5        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.29   1999
 MINIMUM        0.59   2014
TOTALS          2.96               3.90   -0.94     3.88
DAILY AVG.      0.10               0.13   -0.03     0.13
DAYS >= .01        9               10.2    -1.2        9
DAYS >= .10        5                6.2    -1.2        5
DAYS >= .50        3                2.5     0.5        2
DAYS >= 1.00       0                1.1    -1.1        2
GREATEST
 24 HR. TOTAL   1.48   09/18 TO 09/19


DEGREE DAYS
HEATING TOTAL     74                160     -86      136
 SINCE 7/1        81                193    -112      137
COOLING TOTAL    100                 38      62       45
 SINCE 1/1       575                425     150      655
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  09/16
HIGHEST GUST SPEED/DIRECTION    52/330    DATE  09/16

SKY COVER
AVERAGE SKY COVER           0.37

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     HEAVY RAIN                 3
RAIN                      5     LIGHT RAIN                 8
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       21
FOG W/VIS <= 1/4 MILE    10     HAZE                       3

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

$$

AFTER A WET SUMMER IN THE AUGUSTA AREA, A BROAD AREA OF HIGH
PRESSURE BUILT INTO THE NORTHEAST DURING THE FIRST WEEK OF
SEPTEMBER. THIS HIGH PRESSURE BROUGHT THE DRIEST STRETCH OF WEATHER
THE AUGUSTA AREA HAD SEEN SINCE THE END OF MAY. ALONG WITH DRY
WEATHER, TEMPERATURES CLIMBED WELL ABOVE NORMAL DURING THE FIRST
WEEK OF SEPTEMBER, HITTING 90 TWICE, AND BREAKING A DAILY RECORD, ON
THE 5TH AND 7TH. IT WAS ALSO DURING THIS TIME THAT TROPICAL ACTIVITY
WAS INCREASING IN THE ATLANTIC BASIN. SOME FRONTAL SYSTEMS BROUGHT A
RETURN TO WET WEATHER DURING THE SECOND WEEK OF SEPTEMBER BEFORE
ATTENTION TURNED TO HURRICANE LEE THAT WAS TRACKING NORTHWARD
THROUGH THE WESTERN ATLANTIC. LEE MOVED INTO THE EASTERN GULF OF
MAINE ON THE 15TH AS A CATEGORY 1 HURRICANE AND TRANSITIONED TO A
POST TROPICAL SYSTEM ON THE 16TH AS IT TRACKED NORTHEASTWARD THROUGH
THE BAY OF FUNDY. THIS SYSTEM BROUGHT LITTLE IN THE WAY OF
PRECIPITATION TO THE AUGUSTA AREA BUT DID BRING A PEAK WIND GUST OF
52 MPH ON THE 16TH. THE MORE SIGNIFICANT RAIN EVENT OF THE MONTH
OCCURRED ON THE 18TH INTO THE 19TH WHEN LOW PRESSURE TRACKED ACROSS
CAPE COD INTO THE GULF OF MAINE BRINGING 1.48 INCHES OF RAIN. HIGH
PRESSURE BUILT INTO THE NORTHEAST DURING THE THIRD WEEK OF SEPTEMBER
AND DOMINATED THE WEATHER PATTERN THROUGH THE END OF THE MONTH.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 65.6, WHICH WAS 4.6
DEGREES ABOVE NORMAL AND THE THIRD WARMEST SEPTEMBER ON RECORD. THE
WARMEST WAS IN 1999 WHEN THE AVERAGE TEMPERATURE WAS 66.3 DEGREES.
THE COOLEST WAS 54.5 DEGREES IN 1956. THE FOLLOWING TABLE LISTS THE
WARMEST SEPTEMBERS ON RECORD AT AUGUSTA.

WARMEST AVERAGE TEMPERATURE IN SEPTEMBER (SINCE 1948)...
RANK  TEMP  YEAR
1     66.3  1999
2     65.8  1961
3     65.6  2023  <===
4     65.1  2015
5     64.9  2017
6     64.8  1983
7     64.2  2021
8     63.7  2016
9     63.6  1971
10    63.1  2002

A TOTAL OF 2.96 INCHES OF PRECIPITATION FELL, WHICH WAS 0.94 INCHES
BELOW NORMAL. THE HEAVIEST PRECIPITATION OCCURRED ON THE 18TH AND
19TH WHEN 1.48 INCHES OF RAIN FELL. THE DRIEST SEPTEMBER ON RECORD
WAS IN 2014 WHEN ONLY 0.59 INCHES OF PRECIPITATION FELL. THE WETTEST
WAS 11.29 INCHES IN 1999.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SEPTEMBER 2023...
DATE    RECORD                                 PREVIOUS
SEP  5    90  - HIGHEST MAX TEMPERATURE        88 IN 1971 AND 1961
SEP  6    69  - WARMEST LOW TEMPERATURE        68 IN 1983 AND 1953
SEP  7    90  - HIGHEST MAX TEMPERATURE        90 IN 2007

$$

DS/SB


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