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Dinasoedd UDA gyda'r graean mwyaf
Mae Colorado Springs, CO wedi cael graean ar fwy o ddiwrnodau nag unrhyw ddinas arall yn UDA gyda phoblogaeth o 100,000 neu fwy: 134 diwrnod ers 2006, tua 6.5 y flwyddyn.
Y 311 dinas yn UDA gyda phoblogaeth o 100,000 neu fwy, wedi'u rhestru yn ôl nifer y dyddiau ers 2006 gyda o leiaf un adroddiad graean o fewn 10 milltir o ganol y ddinas. Daw'r adroddiadau o Gronfa Ddata Digwyddiadau Storm NOAA ac adroddiadau storm y Gwasanaeth Tywydd Cenedlaethol; caiff y rhestr ei diweddaru bob dydd.
| Safle | Dinas | Diwrnodau eira | Y flwyddyn | Mwyaf |
|---|---|---|---|---|
| 1 | Colorado Springs, CO | 134 | 6.5 | 4 mod grapefruit |
| 2 | Oklahoma City, OK | 130 | 6.3 | 4.6 mod |
| 3 | Amarillo, TX | 125 | 6 | 2.75 mod pelan beisbol |
| 4 | Centennial, CO | 124 | 6 | 3 mod cwpan de |
| 5 | Wichita, KS | 116 | 5.6 | 7.75 mod |
| 6 | Kansas City, KS | 113 | 5.4 | 3 mod cwpan de |
| 7 | Kansas City, MO | 110 | 5.3 | 2.75 mod pelan beisbol |
| 8 | Broken Arrow, OK | 103 | 5 | 3 mod cwpan de |
| 9 | Norman, OK | 102 | 4.9 | 4.6 mod |
| 10 | Des Moines, IA | 101 | 4.9 | 3.25 mod |
| 11 | Denver, CO | 99 | 4.8 | 3 mod cwpan de |
| 12 | Springfield, MO | 97 | 4.7 | 3 mod cwpan de |
| 13 | Overland Park, KS | 94 | 4.5 | 2.75 mod pelan beisbol |
| 14 | Aurora, CO | 89 | 4.3 | 2.75 mod pelan beisbol |
| 15 | Lewisville, TX | 88 | 4.2 | 4.25 mod |
| 15 | Tulsa, OK | 88 | 4.2 | 4.25 mod |
| 17 | Lakewood, CO | 87 | 4.2 | 3 mod cwpan de |
| 18 | Frisco, TX | 86 | 4.1 | 4.5 mod pelan softball |
| 19 | Olathe, KS | 85 | 4.1 | 2.85 mod |
| 20 | Fort Worth, TX | 84 | 4 | 3 mod cwpan de |
| 20 | Richardson, TX | 84 | 4 | 3.25 mod |
| 20 | Omaha, NE | 84 | 4 | 4.5 mod pelan softball |
| 23 | Independence, MO | 83 | 4 | 5.5 mod |
| 24 | Arvada, CO | 81 | 3.9 | 3 mod cwpan de |
| 24 | Plano, TX | 81 | 3.9 | 5.25 mod |
| 26 | Lincoln, NE | 80 | 3.9 | 5 mod |
| 26 | Saint Paul, MN | 80 | 3.9 | 3.1 mod |
| 26 | Minneapolis, MN | 80 | 3.9 | 3 mod cwpan de |
| 29 | Peoria, IL | 79 | 3.8 | 3 mod cwpan de |
| 30 | Shreveport, LA | 78 | 3.8 | 4 mod grapefruit |
| 31 | Grand Prairie, TX | 77 | 3.7 | 4.25 mod |
| 31 | Carrollton, TX | 77 | 3.7 | 4.25 mod |
| 33 | Denton, TX | 76 | 3.7 | 4.25 mod |
| 34 | Arlington, TX | 75 | 3.6 | 3.25 mod |
| 34 | Lubbock, TX | 75 | 3.6 | 4.5 mod pelan softball |
| 34 | St. Louis, MO | 75 | 3.6 | 4.5 mod pelan softball |
| 37 | Garland, TX | 74 | 3.6 | 5.25 mod |
| 37 | Little Rock, AR | 74 | 3.6 | 2.75 mod pelan beisbol |
| 39 | Topeka, KS | 73 | 3.5 | 5.25 mod |
| 39 | Naperville, IL | 73 | 3.5 | 4.8 mod |
| 41 | Abilene, TX | 71 | 3.4 | 4.5 mod pelan softball |
| 42 | Westminster, CO | 70 | 3.4 | 3 mod cwpan de |
| 42 | Indianapolis, IN | 70 | 3.4 | 2.5 mod pelan tennis |
| 42 | Springfield, IL | 70 | 3.4 | 3.25 mod |
| 45 | Thornton, CO | 69 | 3.3 | 2.75 mod pelan beisbol |
| 45 | Jackson, MS | 69 | 3.3 | 2.75 mod pelan beisbol |
| 47 | Roanoke, VA | 68 | 3.3 | 2 mod wy hen |
| 47 | North Charleston, SC | 68 | 3.3 | 2.5 mod pelan tennis |
| 49 | Joliet, IL | 66 | 3.2 | 3 mod cwpan de |
| 50 | McKinney, TX | 64 | 3.1 | 4.5 mod pelan softball |
| 50 | Davenport, IA | 64 | 3.1 | 4 mod grapefruit |
| 52 | Midland, TX | 63 | 3 | 4 mod grapefruit |
| 52 | Pueblo, CO | 63 | 3 | 3 mod cwpan de |
| 52 | Wichita Falls, TX | 63 | 3 | 3 mod cwpan de |
| 52 | Columbus, OH | 63 | 3 | 2 mod wy hen |
| 56 | Irving, TX | 62 | 3 | 4.25 mod |
| 56 | Akron, OH | 62 | 3 | 4.25 mod |
| 56 | Cincinnati, OH | 62 | 3 | 2 mod wy hen |
| 59 | Cary, NC | 61 | 2.9 | 2 mod wy hen |
| 59 | Nashville, TN | 61 | 2.9 | 2.5 mod pelan tennis |
| 59 | Dayton, OH | 61 | 2.9 | 3 mod cwpan de |
| 62 | Odessa, TX | 60 | 2.9 | 5 mod |
| 63 | Huntsville, AL | 58 | 2.8 | 3 mod cwpan de |
| 63 | Davie, FL | 58 | 2.8 | 1.75 mod pelan golff |
| 65 | Madison, WI | 57 | 2.7 | 4 mod grapefruit |
| 65 | Sioux Falls, SD | 57 | 2.7 | 3.5 mod |
| 65 | Columbia, SC | 57 | 2.7 | 2 mod wy hen |
| 65 | Charlotte, NC | 57 | 2.7 | 2 mod wy hen |
| 69 | Fort Collins, CO | 56 | 2.7 | 2.75 mod pelan beisbol |
| 69 | Round Rock, TX | 56 | 2.7 | 4 mod grapefruit |
| 69 | Dallas, TX | 56 | 2.7 | 4.25 mod |
| 69 | Tyler, TX | 56 | 2.7 | 2.75 mod pelan beisbol |
| 73 | Cedar Rapids, IA | 55 | 2.7 | 2.75 mod pelan beisbol |
| 73 | Miramar, FL | 55 | 2.7 | 1.75 mod pelan golff |
| 75 | Greeley, CO | 54 | 2.6 | 2.5 mod pelan tennis |
| 75 | Aurora, IL | 54 | 2.6 | 3 mod cwpan de |
| 75 | Elgin, IL | 54 | 2.6 | 2 mod wy hen |
| 78 | Mesquite, TX | 53 | 2.6 | 4 mod grapefruit |
| 78 | Rockford, IL | 53 | 2.6 | 3 mod cwpan de |
| 78 | Pittsburgh, PA | 53 | 2.6 | 1.75 mod pelan golff |
| 78 | Rochester, MN | 53 | 2.6 | 1.75 mod pelan golff |
| 78 | Pembroke Pines, FL | 53 | 2.6 | 1.75 mod pelan golff |
| 83 | Charleston, SC | 52 | 2.5 | 2.75 mod pelan beisbol |
| 83 | Miami Gardens, FL | 52 | 2.5 | 1.75 mod pelan golff |
| 85 | Columbia, MO | 51 | 2.5 | 3 mod cwpan de |
| 85 | Austin, TX | 51 | 2.5 | 4 mod grapefruit |
| 85 | Evansville, IN | 51 | 2.5 | 2 mod wy hen |
| 85 | Springfield, MA | 51 | 2.5 | 3 mod cwpan de |
| 89 | Boulder, CO | 50 | 2.4 | 3 mod cwpan de |
| 90 | Birmingham, AL | 49 | 2.4 | 2.75 mod pelan beisbol |
| 90 | Orlando, FL | 49 | 2.4 | 2 mod wy hen |
| 92 | Louisville, KY | 48 | 2.3 | 2 mod wy hen |
| 92 | San Antonio, TX | 48 | 2.3 | 4.5 mod pelan softball |
| 92 | Raleigh, NC | 48 | 2.3 | 2 mod wy hen |
| 92 | Milwaukee, WI | 48 | 2.3 | 2 mod wy hen |
| 92 | Toledo, OH | 48 | 2.3 | 2.5 mod pelan tennis |
| 97 | Murfreesboro, TN | 47 | 2.3 | 2.75 mod pelan beisbol |
| 97 | Sandy Springs, GA | 47 | 2.3 | 1.75 mod pelan golff |
| 97 | Sterling Heights, MI | 47 | 2.3 | 2.25 mod |
| 97 | Jacksonville, FL | 47 | 2.3 | 1.75 mod pelan golff |
Cyfrifir diwrnod unwaith, waeth beth fo nifer yr adroddiadau. Cyfrifir eira yn unig lle mae rhywun wedi’i hadrodd — mae gwyliwyr stormiau a’r cyhoedd yn adrodd mwy o eira ger trefi a phrynfyrdd — felly mae’r rhestr yn cymharu pa aml y gwnaed adroddiadau eira, nid yn union pa aml y disgynnodd. Mae cronfa ddata NOAA yn rhestru eira o 3/4 modfedd a mwy, felly nid cyfrifir dyddiau gydag eira bach yn unig. Lleoedd Cyfrifiad y Byd yw’r dinasoedd — dinasoedd, trefi a phentrefi cydffurfiol a lleoedd a nodwyd gan y Cyfrifiad — felly cyfrifir Dinas Efrog Newydd fel un ddinas ac nid yw trefi bach yn cael eu rhestru.
Dinasoedd llai gyda’r mwyaf o eira
Y 50 uchaf o 1,399 dinas yn UDA gyda 25,000 i 100,000 o bobl.
| Safle | Dinas | Diwrnodau eira | Y flwyddyn | Mwyaf |
|---|---|---|---|---|
| 1 | Rapid City, SD | 177 | 8.5 | 4.25 mod |
| 2 | Moore, OK | 126 | 6.1 | 4.6 mod |
| 3 | Security-Widefield, CO | 112 | 5.4 | 4 mod grapefruit |
| 4 | Midwest City, OK | 107 | 5.2 | 4.6 mod |
| 5 | Cheyenne, WY | 101 | 4.9 | 4.25 mod |
| 5 | Parker, CO | 101 | 4.9 | 3 mod cwpan de |
| 5 | Urbandale, IA | 101 | 4.9 | 3.25 mod |
| 5 | West Des Moines, IA | 101 | 4.9 | 3.25 mod |
| 9 | North Richland Hills, TX | 99 | 4.8 | 4.25 mod |
| 10 | Haltom City, TX | 97 | 4.7 | 3 mod cwpan de |
| 10 | Keller, TX | 97 | 4.7 | 4.5 mod pelan softball |
| 10 | Gladstone, MO | 97 | 4.7 | 2.75 mod pelan beisbol |
| 13 | Englewood, CO | 96 | 4.6 | 3 mod cwpan de |
| 14 | Yukon, OK | 94 | 4.5 | 4.25 mod |
| 15 | Lenexa, KS | 92 | 4.4 | 3.5 mod |
| 15 | Maryland Heights, MO | 92 | 4.4 | 4 mod grapefruit |
| 17 | Bedford, TX | 91 | 4.4 | 4.25 mod |
| 17 | Flower Mound, TX | 91 | 4.4 | 4.25 mod |
| 17 | Shawnee, KS | 91 | 4.4 | 3.5 mod |
| 17 | Raytown, MO | 91 | 4.4 | 5.5 mod |
| 21 | Hurst, TX | 90 | 4.3 | 3.25 mod |
| 21 | Littleton, CO | 90 | 4.3 | 3 mod cwpan de |
| 21 | Kirkwood, MO | 90 | 4.3 | 4.5 mod pelan softball |
| 24 | Commerce City, CO | 89 | 4.3 | 2.75 mod pelan beisbol |
| 24 | University City, MO | 89 | 4.3 | 4.5 mod pelan softball |
| 26 | Little Elm, TX | 88 | 4.2 | 4.25 mod |
| 26 | The Colony, TX | 88 | 4.2 | 3.5 mod |
| 28 | Euless, TX | 87 | 4.2 | 4.25 mod |
| 28 | Southlake, TX | 87 | 4.2 | 4.25 mod |
| 28 | Saint Charles, MO | 87 | 4.2 | 4 mod grapefruit |
| 31 | Colleyville, TX | 86 | 4.1 | 4.25 mod |
| 31 | Grapevine, TX | 86 | 4.1 | 4.25 mod |
| 31 | Wheat Ridge, CO | 86 | 4.1 | 3 mod cwpan de |
| 34 | Highlands Ranch, CO | 85 | 4.1 | 3 mod cwpan de |
| 34 | Chesterfield, MO | 85 | 4.1 | 4 mod grapefruit |
| 34 | Mauldin, SC | 85 | 4.1 | 3 mod cwpan de |
| 34 | Richfield, MN | 85 | 4.1 | 3 mod cwpan de |
| 38 | Owasso, OK | 84 | 4 | 4.25 mod |
| 39 | Bellevue, NE | 82 | 4 | 4.5 mod pelan softball |
| 39 | Edmond, OK | 82 | 4 | 3 mod cwpan de |
| 39 | Mehlville, MO | 82 | 4 | 4.5 mod pelan softball |
| 39 | Burnsville, MN | 82 | 4 | 2.2 mod |
| 43 | Allen, TX | 81 | 3.9 | 5.25 mod |
| 43 | Joplin, MO | 81 | 3.9 | 4.25 mod |
| 43 | Greer, SC | 81 | 3.9 | 3 mod cwpan de |
| 46 | Leawood, KS | 80 | 3.9 | 2.75 mod pelan beisbol |
| 46 | Ankeny, IA | 80 | 3.9 | 3.25 mod |
| 48 | Dodge City, KS | 79 | 3.8 | 5 mod |
| 48 | Coppell, TX | 79 | 3.8 | 4.25 mod |
| 48 | East Saint Louis, IL | 79 | 3.8 | 4.5 mod pelan softball |
Dinasoedd mawr gyda’r lleiaf o eira
Diwrnodau eira o fewn 10 milltir ers 2006, y lleiaf yn gyntaf: Anchorage, AK (0), Antioch, CA (0), Carlsbad, CA (0), Elk Grove, CA (0), Fontana, CA (0), Fremont, CA (0), Inglewood, CA (0), Kent, WA (0), Long Beach, CA (0), Modesto, CA (0), Oceanside, CA (0), Ontario, CA (0), Oxnard, CA (0), Rancho Cucamonga, CA (0), Renton, WA (0), Rialto, CA (0), Riverside, CA (0), Santa Maria, CA (0), Seattle, WA (0), Tacoma, WA (0).