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000
CXUS51 KGYX 011811
CLMCON

PWMCLMCON 000
TTAA00 GYX 011512

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

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1868 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             95   04/19/1976
 LOW               4   04/05/2016
HIGHEST           90   04/14         82       8       69  04/12
LOWEST            18   04/03         20      -2       25  04/18
                                                          04/21
AVG. MAXIMUM    59.3               57.5     1.8     57.2
AVG. MINIMUM    36.9               33.3     3.6     33.7
MEAN            48.1               45.4     2.7     45.5
DAYS MAX >= 90     1                0.2     0.8        0
DAYS MAX <= 32     0                0.2    -0.2        0
DAYS MIN <= 32     7               16.0    -9.0       12
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.74   1904
 MINIMUM        0.42   1941
TOTALS          4.12               3.43    0.69     3.60
DAILY AVG.      0.14               0.11    0.03     0.12
DAYS >= .01       11               11.4    -0.4       11
DAYS >= .10        5                6.9    -1.9        7
DAYS >= .50        2                2.3    -0.3        3
DAYS >= 1.00       1                0.7     0.3        1
GREATEST
 24 HR. TOTAL   2.46   04/23

SNOWFALL (INCHES)
RECORDS
 TOTAL          35.0   1874
TOTALS             T                2.5    -2.5      0.0
SINCE 7/1       64.5               67.7    -3.2     44.6
SNOWDEPTH AVG.     0
DAYS >= TRACE      1                1.3    -0.3        0
DAYS >= 1.0        0                0.6    -0.6        0
GREATEST
 SNOW DEPTH        4   04/01
 24 HR TOTAL       T   04/02 TO 04/02

DEGREE DAYS
HEATING TOTAL    505                590     -85      579
 SINCE 7/1      5888               6630    -742     6182
COOLING TOTAL      4                  2       2        0
 SINCE 1/1         4                  2       2        0
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.1
HIGHEST WIND SPEED/DIRECTION    32/310    DATE  04/12
HIGHEST GUST SPEED/DIRECTION    48/320    DATE  04/12

SKY COVER
AVERAGE SKY COVER           0.51

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 2
RAIN                      3     LIGHT RAIN                14
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     FOG                       15
FOG W/VIS <= 1/4 MILE     4     HAZE                       1

-  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 CONCORD AREA TO START
THE MONTH. COOLER AND DRIER AIR FUNNELED INTO THE REGION BEHIND THIS
SYSTEM RESULTING IN A COUPLE OF COLD NIGHTS WITH THE COLDEST
OCCURRING ON THE 3RD WHEN THE LOW WAS 18 DEGREES. 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 89 AND 90 DEGREES, RESPECTIVELY. 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 2.46 INCHES OF RAIN
ON THE 23RD AND ANOTHER SIGNIFICANT SYSTEM ON THE 30TH, ALTHOUGH THE
IMPACTS FROM THIS SECOND SYSTEM WERE FOCUSED IN THE WHITE MOUNTAINS
TO CENTRAL MAINE.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 48.1 DEGREES, WHICH WAS
2.7 DEGREES ABOVE NORMAL. THE WARMEST APRIL ON RECORD WAS IN 1941
WHEN THE AVERAGE TEMPERATURE WAS 51.4 DEGREES. THE COOLEST WAS 37.0
DEGREES IN 1874.

A TOTAL OF 4.12 INCHES OF PRECIPITATION FELL, WHICH WAS 0.69 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL ON THE 23RD WHEN 2.46
INCHES OF RAIN FELL. THE WETTEST APRIL ON RECORD WAS IN 1904 WHEN
7.44 INCHES FELL. THE DRIEST WAS 0.42 INCHES IN 1941.

ONLY A TRACE OF SNOWFALL WAS RECORDED FOR THE MONTH OF APRIL, WHICH
WAS 2.5 INCHES BELOW NORMAL. THERE HAS BEEN 11 APRILS ON RECORD WHEN
NO SNOWFALL OCCURRED AT CONCORD. THE SNOWIEST APRIL ON RECORD WAS IN
1874 WHEN 35.0 INCHES OF SNOW FELL.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN APRIL 2023...
DATE   RECORD                                PREVIOUS
APR 13   89   - WARMEST HIGH TEMPERATURE     88 IN 1945
APR 14   90   - WARMEST HIGH TEMPERATURE     84 IN 1870
APR 23 2.46   - GREATEST PRECIPITATION       1.55 IN 1977

$$

DS