Average Low-Temperature Map of the US In December ranges from a high of 67.4 degrees Fahrenheit (19.7 degrees Celsius) in Hawaii to a low of 2.6 °F (-16.3 °C) in Alaska. For the entire United States, excluding Hawaii and Alaska, the season averages just above freezing at 33.2 °F (0.7 °C).
It is based on data collected by weather stations throughout each state during the years 1971 to 2000 and made available by the NOAA National Climatic Data Center of the United States.
The Average Temperature Map of the US In December is 36.5°F, 3.8°F. Freezing nights are common this month in many major cities, including Chicago, Oklahoma, and Kansas City.
Weather Facts
- The Warmest City = Miami, Florida averages highs of 77.9 °F daily
- Warmest Ocean = the Atlantic at Miami Beach, Florida is 73 °F
- Warmest Park = Everglades Park, Florida has daytime highs of 82.4 °F
- Driest Warm Place = Lajitas, Texas gets 0.23 inches of rain
- Sunniest Warm City = Yuma in southwest Arizona has 82 % sunshine
| High °F | Low °F | City | High °C | Low °C |
|---|---|---|---|---|
| 54 | 37 | Atlanta, Georgia | 12 | 3 |
| 63 | 42 | Austin, Texas | 17 | 6 |
| 45 | 28 | Baltimore, Maryland | 7 | -2 |
| 56 | 36 | Birmingham, Alabama | 13 | 2 |
| 41 | 28 | Boston, Massachusetts | 5 | -2 |
| 36 | 24 | Buffalo, New York | 2 | -4 |
| 53 | 32 | Charlotte, North Carolina | 12 | 0 |
| 35 | 21 | Chicago, Illinois | 2 | -6 |
| 43 | 26 | Cincinnati, Ohio | 6 | -3 |
| 38 | 26 | Cleveland, Ohio | 4 | -3 |
| 40 | 27 | Columbus, Ohio | 5 | -3 |
| 58 | 39 | Dallas, Texas | 14 | 4 |
| 43 | 17 | Denver, Colorado | 6 | -9 |
| 36 | 24 | Detroit, Michigan | 2 | -4 |
| 40 | 23 | Hartford, Connecticut | 4 | -5 |
| 64 | 45 | Houston, Texas | 18 | 7 |
| 39 | 24 | Indianapolis, Indiana | 4 | -4 |
| High °F | Low °F | City | High °C | Low °C |
|---|---|---|---|---|
| 67 | 44 | Jacksonville, Florida | 19 | 7 |
| 42 | 26 | Kansas City, Missouri | 5 | -4 |
| 57 | 39 | Las Vegas, Nevada | 14 | 4 |
| 68 | 48 | Los Angeles, California | 20 | 9 |
| 46 | 30 | Louisville, Kentucky | 8 | -1 |
| 52 | 35 | Memphis, Tennessee | 11 | 2 |
| 78 | 63 | Miami, Florida | 26 | 17 |
| 33 | 20 | Milwaukee, Wisconsin | 0 | -7 |
| 27 | 12 | Minneapolis, Minnesota | -3 | -11 |
| 50 | 31 | Nashville, Tennessee | 10 | 0 |
| 64 | 47 | New Orleans, Louisiana | 18 | 8 |
| 43 | 32 | New York, New York | 6 | 0 |
| 51 | 31 | Oklahoma City, Oklahoma | 10 | -1 |
| 73 | 52 | Orlando, Florida | 23 | 11 |
| 45 | 30 | Philadelphia, Pennsylvania | 7 | -1 |
| 67 | 45 | Phoenix, Arizona | 20 | 7 |
| 39 | 25 | Pittsburgh, Pennsylvania | 4 | -4 |