CDUS41 KPHI 110559 CLIABE CLIMATE REPORT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1259 AM EST THU DEC 11 2025 ................................... ...THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 10 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1922 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 40 1:07 PM 70 1946 45 -5 49 MINIMUM 26 5:38 AM 1 1958 28 -2 43 AVERAGE 33 36 -3 46 PRECIPITATION (IN) YESTERDAY 0.22 1.59 2023 0.15 0.07 0.05 MONTH TO DATE 0.77 1.37 -0.60 0.39 SINCE DEC 1 0.77 1.37 -0.60 0.39 SINCE JAN 1 35.74 44.87 -9.13 38.59 SNOWFALL (IN) YESTERDAY 0.4 2.7 2013 0.2 0.2 0.0 MONTH TO DATE 1.2 1.3 -0.1 T SINCE DEC 1 1.2 1.3 -0.1 T SINCE JUL 1 1.4 2.4 -1.0 T SNOW DEPTH T DEGREE DAYS HEATING YESTERDAY 32 29 3 19 MONTH TO DATE 364 274 90 311 SINCE DEC 1 364 274 90 311 SINCE JUL 1 1376 1310 66 1180 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 924 981 -57 994 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 3.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 4:00 PM LOWEST 63 1:00 AM AVERAGE 82 .......................................................... THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 63 2021 MINIMUM TEMPERATURE (F) 28 -2 1958 SUNRISE AND SUNSET DECEMBER 11 2025......SUNRISE 7:16 AM EST SUNSET 4:35 PM EST DECEMBER 12 2025......SUNRISE 7:16 AM EST SUNSET 4:35 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$