Climatological Report (Monthly)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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CXUX51 KGYX 031425
CLMGYX
PWMCLMGYX 000
TTAA00 GYX 011821
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
221 PM EDT SUN OCT 01 2023
...................................
...THE GRAY ME CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 96 09/09/2002
LOW 31 09/29/2000
HIGHEST 88 09/05 87 1 82
LOWEST 46 09/26 39 7 38
09/27
09/28
AVG. MAXIMUM 72.3 70.4 1.9 68.7
AVG. MINIMUM 56.3 51.5 4.8 51.9
MEAN 64.3 60.9 3.4 60.3
DAYS MAX >= 90 0 0.4 -0.4 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 12.55 2008
MINIMUM 0.78 2019
TOTALS 3.73 4.32 -0.59 6.17
DAILY AVG. 0.12 0.14 -0.02 0.21
DAYS >= .01 9 9.8 -0.8 12
DAYS >= .10 6 5.9 0.1 9
DAYS >= .50 3 2.7 0.3 5
DAYS >= 1.00 1 1.0 0.0 3
GREATEST
24 HR. TOTAL 2.27 09/18 TO 09/19
SNOWFALL (INCHES)
RECORDS
TOTAL
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 0.0
SNOWDEPTH AVG. 0
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.0
DEGREE DAYS
HEATING TOTAL 94 158 -64 165
SINCE 7/1 106 194 -88 168
COOLING TOTAL 81 36 45 33
SINCE 1/1 428 393 35 583
..............................................................
- 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 GRAY 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 GRAY AREA
HAD SEEN SINCE THE END OF MAY. ALONG WITH DRY WEATHER, TEMPERATURES
CLIMBED WELL ABOVE NORMAL DURING THE FIRST WEEK OF SEPTEMBER. 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 HIGH SURF AND RIP CURRENTS TO AREA BEACHES ALONG WITH
A PEAK WIND GUST TO 48 MPH ON THE 16TH WHILE THE BULK OF RAIN MISSED
THE GRAY AREA TO THE EAST. A MORE SIGNIFICANT RAIN EVENT OCCURRED ON
THE 18TH INTO THE 19TH WHEN LOW PRESSURE TRACKED ACROSS CAPE COD
INTO THE GULF OF MAINE BRINGING 2.27 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 64.3 DEGREES, WHICH WAS
3.4 DEGREES ABOVE NORMAL AND TIED FOR THE 4TH WARMEST SEPTEMBER ON
RECORD. THE WARMEST WAS IN 2015 WHEN THE AVERAGE TEMPERATURE WAS
65.4 DEGREES. THE COOLEST WAS 58.8 DEGREES IN 2000. THE FOLLOWING
TABLE LISTS THE WARMEST SEPTEMBERS ON RECORD AT GRAY.
WARMEST AVERAGE TEMPERATURE IN SEPTEMBER (SINCE 1996)...
RANK TEMP YEAR
1 65.4 2015
2 65.3 2017
3 64.6 2002
4 64.3 2023 <===
5 64.3 2016
A TOTAL OF 3.73 INCHES OF PRECIPITATION FELL, WHICH WAS 0.59 BELOW
NORMAL. THE HEAVIEST PRECIPITATION OCCURRED ON THE 18TH INTO THE
19TH WHEN 2.27 INCHES OF RAIN FELL. THE DRIEST SEPTEMBER WAS IN 2019
WHEN ONLY 0.78 INCHES OF PRECIPITATION FELL. THE WETTEST WAS 12.56
INCHES IN 2008.
$$
DS