Climatological Report (Monthly)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000 CXUX51 KGYX 011849 CLMGYX PWMCLMGYX 000 TTAA00 GYX 011512 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1112 AM EDT MON MAY 01 2023 ................................... ...THE GRAY ME CLIMATE SUMMARY FOR THE MONTH OF APRIL 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 91 04/28/2009 LOW 15 04/04/2016 HIGHEST 82 04/14 79 3 65 LOWEST 25 04/03 26 -1 31 AVG. MAXIMUM 54.8 52.9 1.9 54.2 AVG. MINIMUM 37.3 34.0 3.3 36.2 MEAN 46.0 43.5 2.5 45.2 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 0.3 -0.3 0 DAYS MIN <= 32 9 10.7 -1.7 2 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 10.62 2005 MINIMUM 0.35 1999 TOTALS 4.54 4.40 0.14 4.20 DAILY AVG. 0.15 0.15 0.00 0.14 DAYS >= .01 11 11.7 -0.7 13 DAYS >= .10 7 7.2 -0.2 9 DAYS >= .50 2 2.8 -0.8 2 DAYS >= 1.00 1 1.3 -0.3 1 GREATEST 24 HR. TOTAL 2.32 04/30 SNOWFALL (INCHES) RECORDS TOTAL 27.2 2007 TOTALS 0.0 4.7 -4.7 T SINCE 7/1 81.2 84.0 -2.8 44.0 SNOWDEPTH AVG. 0 DAYS >= TRACE 0 2.2 -2.2 2 DAYS >= 1.0 0 1.0 -1.0 0 GREATEST SNOW DEPTH 2 04/01 0 24 HR TOTAL 0 DEGREE DAYS HEATING TOTAL 561 647 -86 585 SINCE 7/1 6007 6715 -708 6388 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 .............................................................. - 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 GRAY AREA TO START THE MONTH. COOLER AND DRIER AIR FUNNELED INTO THE REGION IN THE WAKE OF THIS SYSTEM LEADING TO 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 LED TO A PERIOD OF WARM AND DRY WEATHER WITH TEMPERATURES CLIMBING WELL INTO THE 60S TO NEAR 70 DEGREE, PEAKING ON THE 14TH WHEN THE HIGH REACHED 82 DEGREES. 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. THIS BLOCKING PATTERN CULMINATED WITH A SIGNIFICANT SYSTEM IMPACTING THE GRAY AREA ON THE 30TH. THIS SYSTEM BROUGHT 2.32 INCHES OF RAIN WITH HIGHER AMOUNTS NORTH AND EAST OF THE GRAY AREA LEADING TO SIGNIFICANT FLOODING ACROSS CENTRAL MAINE. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 46.0 DEGREES, WHICH WAS 2.5 DEGREES ABOVE NORMAL. THE WARMEST APRIL ON RECORD WAS IN 2010 WHEN THE AVERAGE TEMPERATURE WAS 49.0 DEGREES. THE COOLEST WAS IN 2018 WHEN THE AVERAGE TEMPERATURE WAS 40.9 DEGREES. A TOTAL OF 4.54 INCHES OF PRECIPITATION FELL, WHICH WAS 0.14 INCHES ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL ON THE 30TH WHEN 2.32 INCHES OF RAIN FELL. THE WETTEST APRIL ON RECORD WAS IN 2005 WHEN 10.62 INCHES OF PRECIPITATION FELL. THE DRIEST WAS IN 1999 WHEN ONLY 0.35 INCHES FELL. NO SNOWFALL WAS RECORDED DURING THE MONTH APRIL, WHICH WAS 4.7 INCHES BELOW NORMAL. IN ADDITION TO THIS APRIL THERE WAS ONE OTHER APRIL ON RECORD WHEN NO SNOW FELL, WHICH WAS IN 1999. THE SNOWIEST APRIL ON RECORD WAS IN 2007 WHEN 27.2 INCHES OF SNOW FELL. $$ DS