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CXUS51 KGYX 042326
CLMAUG

PWMCLMAUG 000
TTAA00 GYX 020949

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
548 AM EDT FRI JUN 02 2023

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

...THE AUGUSTA CLIMATE SUMMARY FOR THE MONTH OF MAY 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             94   05/22/1992
 LOW              26   05/08/1950
HIGHEST           92   05/28         85       7       92  05/14
LOWEST            36   05/17         34       2       35  05/08
                       05/18
AVG. MAXIMUM    68.9               65.8     3.1     71.3
AVG. MINIMUM    45.5               44.7     0.8     46.9
MEAN            57.2               55.3     1.9     59.1
DAYS MAX >= 90     1                0.4     0.6        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.4    -0.4        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.83   1984
 MINIMUM        0.55   1992
TOTALS          4.37               3.27    1.10     1.64
DAILY AVG.      0.14               0.11    0.03     0.05
DAYS >= .01        8               13.1    -5.1        8
DAYS >= .10        6                7.4    -1.4        4
DAYS >= .50        2                2.1    -0.1        1
DAYS >= 1.00       2                0.4     1.6        0
GREATEST
 24 HR. TOTAL   4.56   04/30 TO 05/01


DEGREE DAYS
HEATING TOTAL    252                313     -61      207
 SINCE 7/1      6076               7190   -1114     6244
COOLING TOTAL     17                 10       7       35
 SINCE 1/1        19                 10       9       35
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    31/120    DATE  05/01
HIGHEST GUST SPEED/DIRECTION    49/110    DATE  05/01

SKY COVER
AVERAGE SKY COVER           0.28

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 3
RAIN                      5     LIGHT RAIN                 9
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                        9
FOG W/VIS <= 1/4 MILE     2     HAZE                       0

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

&&

THE COOL, CLOUDY, AND DAMP PATTERN THAT DOMINATED THE
SECOND HALF OF APRIL PERSISTED INTO THE FIRST WEEK OF MAY. A
SIGNIFICANT RAIN EVENT THAT STARTED ON APRIL 30TH CONTINUED INTO MAY
1ST WHERE THE AUGUSTA AREA RECEIVED 4.69 INCHES OF RAIN WITH UPWARDS
OF 5 TO 6 INCHES FALLING ACROSS THE MOUNTAINS AND CENTRAL MAINE
LEADING TO SIGNIFICANT FLOODING. THE AUGUSTA AREA WENT ON TO RECORD
MEASURABLE PRECIPITATION FOR THE NEXT FOUR DAYS OF THE MONTH WITH
TEMPERATURES AVERAGING BELOW NORMAL. THE BLOCKING PATTERN ASSOCIATED
WITH THE NEGATIVE PHASE OF THE NAO WAS RESPONSIBLE FOR THIS
PROLONGED PERIOD OF DREARY WEATHER, AND THIS PATTERN BROKE DOWN BY
THE END OF THE FIRST WEEK OF MAY. A PERIOD OF DRY WEATHER ENSUED,
AND WITH THE EXCEPTION OF A COUPLE COOL DAYS AND SEASONABLY COLD
NIGHTS, TEMPERATURES AVERAGED ABOVE NORMAL THROUGH THE MIDDLE OF THE
MONTH. TOWARDS THE END OF THIS DRY STRETCH OF WEATHER A COLD FRONT
CROSSED ON THE 17TH WITH A CANADIAN HIGH PRESSURE SYSTEM BUILDING IN
BEHIND THE FRONT. THIS HIGH ALLOWED FOR STRONG RADIATIONAL COOLING
WITH THE TEMPERATURE FALLING TO 36 DEGREES ON THE MORNING OF THE
18TH, PRESERVING THE LAST FREEZE DATE OF APRIL 10TH. A COUPLE DAYS
LATER A COASTAL LOW PRESSURE SYSTEM MERGED WITH A COLD FRONT
APPROACHING FROM THE WEST BRINGING SIGNIFICANT RAINFALL TO THE
AUGUSTA AREA WHEN A STORM TOTAL OF 2.02 INCHES FELL ON THE 20TH INTO
THE 21ST. COOL WEATHER FOLLOWED THIS HEAVY RAIN EVENT BEFORE A RIDGE
OF HIGH PRESSURE BUILT IN OVER THE NORTHEAST RESULTING IN VERY WARM
WEATHER TO CLOSE OUT THE MONTH OF MAY.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 57.2 DEGREES, WHICH WAS
1.9 DEGREES ABOVE NORMAL. THE WARMEST MAY ON RECORD WAS IN 2015 WHEN
THE AVERAGE TEMPERATURE WAS 59.4 DEGREES. THE COOLEST WAS 48.7
DEGREES IN 1956.

A TOTAL OF 4.37 INCHES OF PRECIPITATION FELL IN THE MONTH OF MAY,
WHICH WAS 1.10 INCHES ABOVE NORMAL. THE WETTEST MAY ON RECORD WAS IN
1984 WHEN 10.83 INCHES OF PRECIPITATION FELL. THE DRIEST WAS 0.55
INCHES IN 1992.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN MAY 2023...
DATE   RECORD                                PREVIOUS
MAY  1  1.69  - GREATEST PRECIPITATION       0.76 IN 2020
MAY  7   56   - WARMEST LOW TEMPERATURE        53 IN 1999
MAY 20  1.61  - GREATEST PRECIPITATION       1.20 IN 1957
MAY 28   92   - WARMEST MAXIMUM TEMPERATURE    88 IN 1988

$$

DS