| Month | Average (mean) | Lowest | Highest |
|---|---|---|---|
| January 2021 | 25.92° | 2° | 40° |
| February 2021 | 16.80° | -14° | 51° |
| March 2021 | 42.05° | 12° | 67° |
| April 2021 | 52.53° | 23° | 87° |
| May 2021 | 60.55° | 34° | 88° |
| June 2021 | 73.85° | 51° | 91° |
| July 2021 | 73.74° | 57° | 91° |
| August 2021 | 75.19° | 58° | 92° |
| September 2021 | 68.28° | 47° | 89° |
| October 2021 | 58.26° | 35° | 86° |
| November 2021 | 38.73° | 14° | 68° |
| December 2021 | 33.40° | 9° | 67° |