Climate averages 1991–2020
Weather in United States in September
In September, average daytime highs across the 498 cities listed in the United States range from 11.8°C in Anchorage to 38.6°C in Yuma. Monthly rainfall ranges from 1.0 mm in Bakersfield to 179 mm in West Palm Beach.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in United States
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| New York City | 23.6°C15.6°C | 15.6°C | 94 | 9.4 |
| Los Angeles | 31.1°C17.3°C | 17.3°C | 3.2 | 0.5 |
| Brooklyn | 23.8°C16.1°C | 16.1°C | 94 | 9.4 |
| Chicago | 22.7°C15.8°C | 15.8°C | 75 | 8.8 |
| Queens | 23.6°C16.5°C | 16.5°C | 92 | 9.1 |
| Houston | 30.8°C22.1°C | 22.1°C | 118 | 11.8 |
| Phoenix | 36.9°C23.4°C | 23.4°C | 24 | 3.1 |
| Philadelphia | 25.1°C16.3°C | 16.3°C | 104 | 9.2 |
| San Antonio | 31.6°C22.0°C | 22.0°C | 77 | 8.6 |
| Manhattan | 23.7°C15.6°C | 15.6°C | 94 | 9.4 |
| San Diego | 25.1°C17.5°C | 17.5°C | 2.9 | 0.6 |
| The Bronx | 23.8°C15.7°C | 15.7°C | 92 | 9.1 |
| Dallas | 30.7°C21.5°C | 21.5°C | 63 | 5.9 |
| Jacksonville | 29.0°C22.8°C | 22.8°C | 121 | 15.8 |
| Fort Worth | 30.6°C21.1°C | 21.1°C | 63 | 5.9 |
| San Jose | 27.8°C15.6°C | 15.6°C | 2.5 | 0.5 |
| Austin | 31.3°C21.8°C | 21.8°C | 75 | 8.0 |
| Columbus | 24.3°C14.6°C | 14.6°C | 73 | 8.3 |
| Charlotte | 27.1°C17.7°C | 17.7°C | 98 | 9.1 |
| Indianapolis | 24.6°C15.2°C | 15.2°C | 72 | 7.6 |
| San Francisco | 22.7°C13.0°C | 13.0°C | 1.5 | 0.4 |
| Seattle | 20.6°C11.3°C | 11.3°C | 67 | 8.4 |
| Denver | 24.3°C9.5°C | 9.5°C | 36 | 5.8 |
| Washington | 26.0°C17.0°C | 17.0°C | 110 | 9.2 |
| Nashville | 27.6°C17.7°C | 17.7°C | 83 | 8.1 |
| Oklahoma City | 28.5°C18.9°C | 18.9°C | 73 | 6.9 |
| El Paso | 30.7°C18.3°C | 18.3°C | 31 | 4.1 |
| Boston | 22.4°C14.1°C | 14.1°C | 88 | 8.1 |
| Portland | 24.1°C12.3°C | 12.3°C | 42 | 6.2 |
| Detroit | 22.3°C14.9°C | 14.9°C | 67 | 8.3 |
| Las Vegas | 33.4°C21.0°C | 21.0°C | 7.2 | 1.1 |
| Memphis | 28.7°C18.9°C | 18.9°C | 74 | 7.4 |
| Louisville | 26.5°C16.5°C | 16.5°C | 77 | 7.7 |
| Baltimore | 24.8°C16.6°C | 16.6°C | 120 | 9.4 |
| Albuquerque | 27.8°C15.1°C | 15.1°C | 22 | 3.5 |
| Milwaukee | 20.8°C16.2°C | 16.2°C | 76 | 9.2 |
| Tucson | 34.1°C21.3°C | 21.3°C | 25 | 3.7 |
| Fresno | 32.6°C18.2°C | 18.2°C | 1.8 | 0.5 |
| Sacramento | 31.1°C15.4°C | 15.4°C | 2.3 | 0.5 |
| Atlanta | 27.3°C18.1°C | 18.1°C | 89 | 8.4 |
| Miami | 29.1°C25.4°C | 25.4°C | 156 | 21.2 |
| Omaha | 24.8°C14.8°C | 14.8°C | 77 | 8.1 |
| Raleigh | 26.9°C18.4°C | 18.4°C | 120 | 10.2 |
| Kansas City | 25.6°C16.2°C | 16.2°C | 93 | 8.1 |
| Long Beach | 27.0°C17.4°C | 17.4°C | 3.2 | 0.5 |
| Mesa | 36.6°C22.8°C | 22.8°C | 26 | 3.0 |
| Staten Island | 24.0°C16.2°C | 16.2°C | 95 | 9.1 |
| Colorado Springs | 24.0°C9.3°C | 9.3°C | 33 | 6.2 |
| Virginia Beach | 25.0°C20.6°C | 20.6°C | 114 | 10.7 |
| Oakland | 26.2°C13.8°C | 13.8°C | 1.4 | 0.4 |
| Tampa | 30.0°C23.4°C | 23.4°C | 137 | 17.5 |
| Tulsa | 28.3°C19.1°C | 19.1°C | 101 | 7.5 |
| Minneapolis | 21.8°C13.4°C | 13.4°C | 84 | 9.4 |
| Wichita | 27.2°C17.3°C | 17.3°C | 80 | 7.0 |
| Arlington (Texas), United States | 30.6°C21.2°C | 21.2°C | 64 | 5.9 |
| Bakersfield | 31.8°C17.9°C | 17.9°C | 1.0 | 0.3 |
| Cleveland | 22.4°C15.2°C | 15.2°C | 85 | 10.5 |
| New Orleans | 28.9°C23.5°C | 23.5°C | 123 | 12.8 |
| Aurora (Colorado), United States | 25.1°C10.8°C | 10.8°C | 27 | 4.8 |
| Honolulu | 27.8°C24.5°C | 24.5°C | 10 | 2.2 |
| Anaheim | 28.2°C17.4°C | 17.4°C | 3.6 | 0.5 |
| Orlando | 29.8°C23.0°C | 23.0°C | 142 | 18.5 |
| Lexington | 25.6°C15.9°C | 15.9°C | 89 | 8.4 |
| Riverside | 32.0°C17.5°C | 17.5°C | 5.5 | 1.2 |
| Corpus Christi | 30.7°C23.8°C | 23.8°C | 113 | 13.5 |
| Cincinnati | 25.0°C15.2°C | 15.2°C | 68 | 7.9 |
| Santa Ana, United States | 26.1°C17.7°C | 17.7°C | 4.3 | 0.8 |
| Stockton | 30.1°C15.1°C | 15.1°C | 2.1 | 0.6 |
| Pittsburgh | 23.9°C14.4°C | 14.4°C | 101 | 10.4 |
| Saint Paul | 21.8°C13.4°C | 13.4°C | 86 | 9.5 |
| Lincoln | 25.5°C15.2°C | 15.2°C | 71 | 7.9 |
| Anchorage | 11.8°C6.7°C | 6.7°C | 117 | 15.3 |
| Meads | 25.9°C16.3°C | 16.3°C | 91 | 8.5 |
| Henderson | 34.1°C21.7°C | 21.7°C | 6.5 | 1.3 |
| Greensboro | 26.2°C17.1°C | 17.1°C | 105 | 9.7 |
| Plano | 30.1°C21.0°C | 21.0°C | 71 | 6.2 |
| Newark | 24.2°C15.6°C | 15.6°C | 102 | 9.4 |
| Madison | 22.1°C13.1°C | 13.1°C | 84 | 9.1 |
| St. Louis | 26.4°C16.6°C | 16.6°C | 83 | 7.6 |
| Chula Vista | 24.2°C17.6°C | 17.6°C | 4.4 | 0.9 |
| Toledo, United States | 23.2°C14.5°C | 14.5°C | 63 | 8.1 |
| Reno | 26.5°C14.4°C | 14.4°C | 9.4 | 2.5 |
| Chandler | 37.0°C23.1°C | 23.1°C | 25 | 2.9 |
| Fort Wayne | 23.4°C13.9°C | 13.9°C | 67 | 8.5 |
| Buffalo | 21.1°C14.6°C | 14.6°C | 85 | 10.4 |
| Durham | 26.9°C17.9°C | 17.9°C | 112 | 9.4 |
| St. Petersburg | 29.2°C24.7°C | 24.7°C | 139 | 15.8 |
| Irvine | 27.6°C18.3°C | 18.3°C | 4.3 | 0.8 |
| Lubbock | 28.2°C17.2°C | 17.2°C | 52 | 6.2 |
| Tri-Cities | 27.5°C14.0°C | 14.0°C | 6.9 | 1.8 |
| Winston-Salem | 26.4°C17.0°C | 17.0°C | 101 | 9.0 |
| Glendale (Arizona), United States | 36.8°C23.5°C | 23.5°C | 22 | 2.9 |
| Norfolk | 26.1°C19.1°C | 19.1°C | 120 | 11.1 |
| Hialeah | 29.7°C24.8°C | 24.8°C | 156 | 21.2 |
| Garland | 30.3°C21.1°C | 21.1°C | 71 | 6.2 |
| Scottsdale | 36.5°C23.1°C | 23.1°C | 24 | 3.1 |
| Irving | 30.7°C21.5°C | 21.5°C | 64 | 5.9 |
| Boise | 26.2°C12.6°C | 12.6°C | 10 | 2.2 |
| Fremont | 27.2°C15.4°C | 15.4°C | 1.9 | 0.4 |
| Spokane | 23.7°C11.0°C | 11.0°C | 19 | 4.2 |
| Baton Rouge | 30.1°C21.8°C | 21.8°C | 100 | 10.7 |
| Richmond | 26.3°C17.3°C | 17.3°C | 112 | 9.3 |
| Paradise | 33.6°C20.9°C | 20.9°C | 7.8 | 1.3 |
| Tacoma | 20.8°C11.9°C | 11.9°C | 50 | 7.1 |
| San Bernardino | 31.9°C17.5°C | 17.5°C | 7.8 | 1.8 |
| Salt Lake City | 25.3°C12.1°C | 12.1°C | 34 | 4.7 |
| Huntsville | 28.1°C18.6°C | 18.6°C | 92 | 7.5 |
| Des Moines | 23.9°C14.3°C | 14.3°C | 90 | 8.0 |
| Fontana | 31.6°C17.0°C | 17.0°C | 5.5 | 1.2 |
| Modesto | 31.3°C16.3°C | 16.3°C | 1.9 | 0.6 |
| Rochester (New York), United States | 21.6°C14.3°C | 14.3°C | 88 | 10.7 |
| Arlington (Virginia), United States | 25.4°C16.5°C | 16.5°C | 110 | 9.2 |
| Oxnard | 24.3°C17.2°C | 17.2°C | 3.1 | 0.5 |
| Columbus, United States | 29.8°C20.1°C | 20.1°C | 86 | 8.3 |
| Worcester, United States | 22.3°C13.6°C | 13.6°C | 92 | 8.5 |
| Moreno Valley | 30.8°C17.2°C | 17.2°C | 7.8 | 1.8 |
| Little Rock | 29.0°C19.5°C | 19.5°C | 89 | 6.8 |
| Fayetteville | 27.6°C19.0°C | 19.0°C | 128 | 10.2 |
| Huntington Beach | 25.9°C17.7°C | 17.7°C | 3.6 | 0.5 |
| Tallahassee | 29.7°C21.2°C | 21.2°C | 102 | 11.7 |
| Yonkers | 23.7°C15.8°C | 15.8°C | 101 | 9.3 |
| Glendale (California), United States | 30.4°C16.9°C | 16.9°C | 3.9 | 0.9 |
| Cypress | 31.1°C22.0°C | 22.0°C | 97 | 10.3 |
| Aurora (Illinois), United States | 23.2°C14.1°C | 14.1°C | 77 | 8.3 |
| Amarillo | 27.5°C16.2°C | 16.2°C | 40 | 6.3 |
| Akron | 23.0°C14.0°C | 14.0°C | 88 | 9.9 |
| Vancouver, United States | 23.5°C12.0°C | 12.0°C | 62 | 6.8 |
| Birmingham, United States | 28.9°C19.2°C | 19.2°C | 86 | 7.8 |
| Montgomery | 30.2°C20.4°C | 20.4°C | 78 | 8.0 |
| Grand Rapids | 22.1°C13.6°C | 13.6°C | 79 | 9.3 |
| Peoria (Arizona), United States | 36.6°C23.4°C | 23.4°C | 22 | 2.9 |
| Providence | 22.9°C14.9°C | 14.9°C | 91 | 8.3 |
| Knoxville | 26.7°C16.8°C | 16.8°C | 90 | 8.3 |
| Grand Prairie | 30.7°C21.4°C | 21.4°C | 64 | 5.9 |
| Shreveport | 30.8°C20.8°C | 20.8°C | 78 | 7.1 |
| Overland Park | 25.3°C16.3°C | 16.3°C | 93 | 8.1 |
| Newport News | 26.2°C19.1°C | 19.1°C | 115 | 10.2 |
| Mobile | 29.4°C22.2°C | 22.2°C | 117 | 11.1 |
| Fort Lauderdale | 29.3°C25.0°C | 25.0°C | 172 | 22.0 |
| Santa Clarita | 31.1°C17.4°C | 17.4°C | 4.4 | 0.7 |
| Chattanooga | 27.5°C18.1°C | 18.1°C | 99 | 8.0 |
| Spring Valley | 33.0°C20.0°C | 20.0°C | 7.8 | 1.3 |
| Santa Rosa, United States | 28.4°C13.6°C | 13.6°C | 3.1 | 0.6 |
| Eugene | 24.3°C11.3°C | 11.3°C | 41 | 5.0 |
| Tempe | 36.8°C23.2°C | 23.2°C | 24 | 3.1 |
| Oceanside | 25.3°C18.4°C | 18.4°C | 3.3 | 0.6 |
| Salem, United States | 24.5°C12.0°C | 12.0°C | 32 | 4.8 |
| Rancho Cucamonga | 31.4°C17.4°C | 17.4°C | 5.5 | 1.2 |
| Cape Coral | 30.2°C24.1°C | 24.1°C | 141 | 18.2 |
| Sioux Falls | 22.6°C12.8°C | 12.8°C | 80 | 7.9 |
| Ontario | 31.1°C17.7°C | 17.7°C | 4.3 | 0.9 |
| Fort Collins | 23.8°C9.6°C | 9.6°C | 39 | 5.8 |
| Springfield (Missouri), United States | 26.2°C16.4°C | 16.4°C | 98 | 8.3 |
| Elk Grove | 30.3°C15.0°C | 15.0°C | 3.5 | 0.7 |
| Clarksville | 27.6°C17.9°C | 17.9°C | 82 | 7.6 |
| Pembroke Pines | 29.4°C25.2°C | 25.2°C | 172 | 22.0 |
| Murfreesboro | 27.7°C18.0°C | 18.0°C | 85 | 8.3 |
| Port Saint Lucie | 29.6°C24.3°C | 24.3°C | 139 | 19.7 |
| Corona | 31.6°C17.8°C | 17.8°C | 5.5 | 1.2 |
| McKinney | 30.0°C20.9°C | 20.9°C | 78 | 6.8 |
| Lancaster | 31.5°C17.4°C | 17.4°C | 3.0 | 0.6 |
| Cary | 26.6°C18.2°C | 18.2°C | 120 | 10.2 |
| Alexandria, United States | 25.7°C17.2°C | 17.2°C | 106 | 9.2 |
| Palmdale | 31.1°C17.7°C | 17.7°C | 11 | 2.5 |
| Hayward | 26.5°C14.3°C | 14.3°C | 1.7 | 0.4 |
| Salinas | 23.6°C13.3°C | 13.3°C | 2.1 | 0.4 |
| Sunnyvale | 26.7°C15.2°C | 15.2°C | 2.5 | 0.5 |
| Frisco | 29.9°C20.8°C | 20.8°C | 81 | 6.4 |
| Springfield (Massachusetts), United States | 22.8°C13.7°C | 13.7°C | 96 | 8.5 |
| East Chattanooga | 27.4°C18.0°C | 18.0°C | 99 | 8.0 |
| Pasadena (Texas), United States | 30.6°C22.3°C | 22.3°C | 118 | 11.8 |
| Jackson | 30.4°C19.9°C | 19.9°C | 83 | 7.3 |
| Pomona | 30.7°C17.3°C | 17.3°C | 4.3 | 0.9 |
| Lakewood | 24.1°C9.4°C | 9.4°C | 36 | 5.8 |
| Escondido | 28.1°C17.5°C | 17.5°C | 5.1 | 1.0 |
| Valencia, United States | 31.3°C17.5°C | 17.5°C | 4.4 | 0.7 |
| Rockford | 22.8°C13.7°C | 13.7°C | 84 | 8.7 |
| East Hampton | 25.8°C19.6°C | 19.6°C | 110 | 10.2 |
| Joliet | 23.8°C14.5°C | 14.5°C | 75 | 8.3 |
| Savannah | 28.4°C21.8°C | 21.8°C | 122 | 13.6 |
| Paterson | 23.9°C15.4°C | 15.4°C | 110 | 9.4 |
| Bridgeport | 22.8°C16.4°C | 16.4°C | 103 | 9.1 |
| Naperville | 23.1°C14.3°C | 14.3°C | 77 | 8.3 |
| Gainesville | 29.9°C22.2°C | 22.2°C | 107 | 14.6 |
| Mesquite | 30.6°C21.3°C | 21.3°C | 64 | 6.2 |
| Syracuse | 21.8°C13.8°C | 13.8°C | 99 | 10.7 |
| Torrance | 26.5°C17.0°C | 17.0°C | 3.2 | 0.5 |
| Surprise | 36.6°C23.4°C | 23.4°C | 20 | 3.1 |
| Columbia (South Carolina), United States | 28.3°C19.0°C | 19.0°C | 94 | 8.8 |
| Pasadena (California), United States | 30.2°C16.5°C | 16.5°C | 3.9 | 0.9 |
| Fullerton | 30.3°C17.8°C | 17.8°C | 3.6 | 0.5 |
| Killeen | 30.8°C21.3°C | 21.3°C | 69 | 6.3 |
| McAllen | 32.5°C23.8°C | 23.8°C | 88 | 11.8 |
| Bellevue | 20.7°C11.3°C | 11.3°C | 67 | 8.4 |
| Metairie | 29.1°C23.5°C | 23.5°C | 118 | 12.4 |
| West Valley City | 25.4°C12.3°C | 12.3°C | 34 | 4.7 |
| Dayton | 24.4°C15.3°C | 15.3°C | 68 | 7.8 |
| Olathe | 25.4°C16.4°C | 16.4°C | 93 | 8.1 |
| Warren | 22.4°C14.3°C | 14.3°C | 67 | 8.3 |
| Thornton | 24.0°C9.4°C | 9.4°C | 36 | 5.8 |
Showing the 200 most populous of 498 cities. A rain day is a local calendar day with at least 1 mm of precipitation.