COOLING DEGREE DAY DATA MONTHLY SUMMARY POPULATION-WEIGHTED STATE,REGIONAL,AND NATIONAL AVERAGES CLIMATE PREDICTION CENTER-NCEP-NWS-NOAA MONTHLY DATA FOR SEP 2025 ACCUMULATIONS ARE FROM JAN 1, 2025 -9999 = NORMAL LESS THAN 100 OR RATIO INCALCULABLE STATE MONTH MON MON CUM CUM CUM CUM CUM TOTAL DEV DEV TOTAL DEV DEV DEV DEV FROM FROM FROM FROM FROM FROM NORM L YR NORM L YR NORM L YR PRCT PRCT ALABAMA 294 21 0 1891 108 -81 6 -4 ARIZONA 378 -94 -77 2368 -398 -140 -14 -6 ARKANSAS 284 40 42 1845 99 16 6 1 CALIFORNIA 162 7 -28 786 -23 -179 -3 -19 COLORADO 8 -11 -11 342 -8 -62 -2 -15 CONNECTICUT 45 -11 14 685 86 -16 14 -2 DELAWARE 128 -14 10 1108 -60 -105 -5 -9 FLORIDA 407 -56 -47 2612 -179 -73 -6 -3 GEORGIA 254 14 -6 1770 138 -68 8 -4 IDAHO 57 27 11 475 15 -22 3 -4 ILLINOIS 130 36 14 1020 146 50 17 5 INDIANA 102 0 -11 985 74 68 8 7 IOWA 113 36 18 880 91 120 12 16 KANSAS 174 -5 -8 1309 -119 -113 -8 -8 KENTUCKY 163 8 -3 1276 76 17 6 1 LOUISIANA 353 -19 31 2244 -55 91 -2 4 MAINE 4 -8 -9 278 56 -60 25 -18 MARYLAND 130 -13 17 1183 -18 -113 -1 -9 MASSACHUSETTS 23 -22 4 520 5 -52 1 -9 MICHIGAN 33 -23 -22 608 38 51 7 9 MINNESOTA 43 12 -20 463 32 86 7 23 MISSISSIPPI 358 52 36 2274 293 33 15 1 MISSOURI 197 55 45 1314 106 45 9 4 MONTANA 11 2 -4 147 -75 -90 -34 -38 NEBRASKA 99 0 -26 957 -5 57 -1 6 NEVADA 273 -1 -13 1950 70 35 4 2 NEW HAMPSHIRE 12 -4 -6 448 147 -55 49 -11 NEW JERSEY 93 2 31 900 59 -68 7 -7 NEW MEXICO 67 -35 -10 803 -130 -95 -14 -11 NEW YORK 40 -24 5 634 0 -39 0 -6 NORTH CAROLINA 177 -16 -20 1548 95 -26 7 -2 NORTH DAKOTA 27 4 -20 314 -70 -10 -18 -3 OHIO 71 -9 -27 838 93 -20 12 -2 OKLAHOMA 271 14 -6 1742 -96 -246 -5 -12 OREGON 35 14 -17 297 93 2 46 1 PENNSYLVANIA 61 -10 12 773 45 -55 6 -7 RHODE ISLAND 37 -20 12 563 -15 -35 -3 -6 SOUTH CAROLINA 244 -11 -38 1883 111 -56 6 -3 SOUTH DAKOTA 68 7 -36 662 -10 56 -1 9 TENNESSEE 194 14 12 1440 102 5 8 0 TEXAS 418 38 17 2620 173 -73 7 -3 UTAH 32 -31 -14 556 -182 -39 -25 -7 VERMONT 4 -18 -4 329 -19 -25 -5 -7 VIRGINIA 119 -12 5 1199 106 -53 10 -4 WASHINGTON 31 23 1 218 61 15 39 7 WEST VIRGINIA 82 -6 -15 941 155 -25 20 -3 WISCONSIN 49 4 -10 572 62 67 12 13 WYOMING 3 -11 -21 219 -75 -67 -26 -23 POPULATION WEIGHTED REGION NEW ENGLAND 28 -15 8 541 45 -37 9 -6 MIDDLE ATLANTIC 59 -14 11 739 31 -51 4 -6 E N CENTRAL 82 6 -11 826 91 31 12 4 W N CENTRAL 125 29 9 935 27 46 3 5 SOUTH ATLANTIC 249 -20 -18 1827 5 -60 0 -3 E S CENTRAL 236 17 5 1651 123 -10 8 -1 W S CENTRAL 386 26 21 2425 106 -60 5 -2 MOUNTAIN 157 -33 -28 1176 -129 -67 -10 -5 PACIFIC 134 8 -21 668 -7 -133 -1 -17 UNITED STATES 170 -1 -8 1243 37 -50 3 -4