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000
CXUS51 KGYX 011933
CLMMHT

PWMCLMMHT 000
TTAA00 GYX 011512

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1112 AM EDT MON MAY 01 2023

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

...THE MANCHESTER CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1885 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
HIGHEST           91   04/13         82       9
                       04/14
LOWEST            24   04/03         27      -3
                       04/09
AVG. MAXIMUM    61.5               58.9     2.6
AVG. MINIMUM    40.4               37.5     2.9
MEAN            50.9               48.2     2.7
DAYS MAX >= 90     2                0.2     1.8
DAYS MAX <= 32     0                0.1    -0.1
DAYS MIN <= 32     5                7.1    -2.1
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
TOTALS          5.17               3.33    1.84
DAILY AVG.      0.17               0.11    0.06
DAYS >= .01       12               11.4     0.6
DAYS >= .10        6                6.8    -0.8
DAYS >= .50        3                2.2     0.8
DAYS >= 1.00       2                0.6     1.4
GREATEST
 24 HR. TOTAL   2.20   04/22 TO 04/23

SNOWFALL (INCHES)
TOTALS              T
SINCE 7/1        53.2
DAYS >= TRACE       2
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         0

DEGREE DAYS
HEATING TOTAL    426                509     -83      473
 SINCE 7/1      5124               5904    -780     5332
COOLING TOTAL     11                  5       6        0
 SINCE 1/1        11                  5       6        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
HIGHEST WIND SPEED/DIRECTION    37/320    DATE  04/02
HIGHEST GUST SPEED/DIRECTION    51/320    DATE  04/02

SKY COVER
AVERAGE SKY COVER           0.68

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

&&

AN AREA OF LOW PRESSURE TRACKED FROM THE GREAT LAKES THROUGH THE ST
LAWRENCE VALLEY BRINGING A SOAKING RAIN TO THE MANCHESTER AREA TO
START THE MONTH. COOLER AND DRIER AIR FUNNELED INTO THE REGION
BEHIND THIS SYSTEM RESULTING IN A COUPLE OF COLD NIGHTS WITH LOWS
DROPPING INTO THE 20S. TEMPERATURES TRENDED BELOW NORMAL INTO THE
SECOND WEEK OF THE MONTH FOLLOWED BY A PATTERN CHANGE WITH A RIDGE
OF HIGH PRESSURE BUILDING OVER THE EAST COAST. THIS RIDGE OF HIGH
PRESSURE LED TO A PERIOD OF WARM AND DRY WEATHER WITH EXCEPTIONAL
WARMTH OCCURRING ON THE 13TH AND 14TH WHEN THE HIGH REACHED 91
DEGREES BOTH DAYS. THIS PERIOD OF WARMTH CAME TO AN END WHEN AN
OMEGA BLOCK FORMED OVER EASTERN NORTH AMERICA AND THE NORTHERN
ATLANTIC THAT PERSISTED THROUGH THE SECOND HALF OF THE MONTH.
NORTHERN NEW ENGLAND REMAINED UNDER THE WESTERN UPPER LOW OF THE
OMEGA BLOCK THAT LED TO A PROLONGED PERIOD OF DREARY WEATHER WITH
RAIN, DRIZZLE, AND TEMPERATURES RUNNING BELOW NORMAL. DURING THIS
PERIOD A SLOW MOVING FRONTAL SYSTEM BROUGHT 2.20 INCHES OF RAIN LATE
ON THE 22ND INTO THE 23RD. ANOTHER SIGNIFICANT SYSTEM MOVED THROUGH
ON THE 30TH BRING 1.42 INCHES OF RAIN WHILE AREAS IN THE WHITE
MOUNTAINS TO CENTRAL MAINE RECEIVED SEVERAL INCHES OF RAIN LEADING
TO SIGNIFICANT FLOODING.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 50.9 DEGREES, WHICH WAS
2.7 DEGREES ABOVE NORMAL AND THE THIRD WARMEST APRIL ON RECORD. THE
WARMEST APRIL ON RECORD WAS IN 2010 WHEN THE AVERAGE TEMPERATURE WAS
52.0 DEGREES. THE COOLEST WAS IN 1929 WHEN THE AVERAGE TEMPERATURE
WAS 39.0 DEGREES.

A TOTAL OF 5.17 INCHES OF PRECIPITATION FELL, WHICH WAS 1.84 DEGREES
ABOVE NORMAL. THE WETTEST APRIL ON RECORD WAS IN 1904 WHEN 8.55
INCHES OF PRECIPITATION FELL. THE DRIEST WAS 0.39 INCHES IN 1941.
ONLY A TRACE OF SNOWFALL WAS RECORDED AT MANCHESTER DURING THE MONTH
OF APRIL.

HISTORICAL RECORDS AT MANCHESTER BEGAN IN 1885, BUT WITHIN THIS
RECORD THERE REMAIN NUMEROUS YEARS OF UNAVAILABLE DATA. DUE TO THIS,
HISTORICAL RECORDS SHOULD BE CONSIDERED INCOMPLETE AS SOME
SIGNIFICANT EXTREMES MAY BE MISSING FROM THE DATA. MORE CONSISTENT
MODERN RECORDS BEGAN IN 1998 AND CONTINUE TO THE PRESENT.

$$