About Petrified Forest Weather
Petrified Forest National Park has hot summers, with sometimes violent thunderstorms from July through September. Winters are generally cool to cold and light snow is a possibility. Spring and fall are unpredictable with quickly changing conditions. High winds are common.
| Month | Avg High | Avg Low | Record High | Record Low | Avg Pcpt |
| January | 48° | 21° | 74°/2000 | -27°/1971 | 0.65" |
| February | 55° | 25° | 74°/1989 | -6°/1956 | 0.59" |
| March | 62° | 29° | 84°/2004 | 3°/2002 | 0.80" |
| April | 70° | 35° | 92°/1971 | 12°/1979 | 0.40" |
| May | 79° | 43° | 99°/2000 | 22°/1967 | 0.53" |
| June | 90° | 52° | 107°/1998 | 31°/1993 | 0.30" |
| July | 92° | 60° | 105°/2005 | 40°/1968 | 1.45" |
| August | 90° | 59° | 102°/2002 | 42°/1981 | 1.62" |
| September | 84° | 52° | 99°/1950 | 33°/1971 | 1.33" |
| October | 72° | 40° | 92°/2003 | 16°/1970 | 1.20" |
| November | 59° | 28° | 81°/1984 | -13°/1976 | 0.79" |
| December | 49° | 21° | 72°/1958 | -18°/1990 | 0.78" |
