Updated October 2026
Aztec Ruins National Monument Weather by Month
Aztec Ruins National Monument is warmest in July, when the nearest NOAA climate station averages a high of 94°F and a low of 58°F, and coldest in January, with an average high of 46°F and an average low of 17°F. August is the wettest month, with about 1.3 inches of precipitation. Snowfall is heaviest in January, at about 4.5 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 0.1 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Aztec Ruins National Monument can differ from these, particularly with elevation.
Warmest month
Jul
94°F avg high
Coldest month
Jan
17°F avg low
Wettest month
Aug
1.3 in avg
Snowiest month
Jan
4.5 in avg
Longest days
Jun
14.5 h of daylight
Average weather at Aztec Ruins by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 46°F | 17°F | 0.9 in | 4.5 in | 9.7 h |
| February | 53°F | 22°F | 0.8 in | 2.3 in | 10.6 h |
| March | 63°F | 27°F | 0.8 in | 0.5 in | 11.7 h |
| April | 71°F | 33°F | 0.7 in | 0.2 in | 13.0 h |
| May | 80°F | 41°F | 0.7 in | 0.0 in | 14.0 h |
| June | 90°F | 50°F | 0.3 in | 0.0 in | 14.5 h |
| July | 94°F | 58°F | 1.0 in | 0.0 in | 14.3 h |
| August | 91°F | 57°F | 1.3 in | 0.0 in | 13.4 h |
| September | 84°F | 49°F | 1.1 in | 0.0 in | 12.2 h |
| October | 72°F | 36°F | 0.9 in | 0.3 in | 11.0 h |
| November | 58°F | 25°F | 0.9 in | 0.9 in | 10.0 h |
| December | 46°F | 18°F | 0.7 in | 2.2 in | 9.5 h |
| Year total | 10.1 in | 10.9 in |
NOAA 1991–2020 climate normals from station USC00290692, 0.1 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Aztec Ruins is at that time of year.
Aztec Ruins weather by season
Winter: December to February
Average highs climb from 46°F in December to 53°F in February, with average lows between 17°F and 22°F. The average low is at or below freezing in all three months. Together the three months average 2.4 inches of precipitation, about 24% of the yearly total. Snowfall averages about 9 inches for the season. Daylight is at its shortest, about 9.5 hours in December.
Spring: March to May
Average highs climb from 63°F in March to 80°F in May, with average lows between 27°F and 41°F. The average low is at or below freezing in March. Together the three months average 2.2 inches of precipitation, about 22% of the yearly total and less than in any other season. Snowfall averages about 0.7 inches for the season. Daylight lengthens from about 11.7 hours in March to 14.0 in May.
Summer: June to August
Average highs peak at 94°F in July, between 90°F in June and 91°F in August, with average lows between 50°F and 58°F. The average high is 90°F or hotter in all three months. Together the three months average 2.6 inches of precipitation, about 26% of the yearly total. Daylight is at its longest, about 14.5 hours in June.
Fall: September to November
Average highs fall from 84°F in September to 58°F in November, with average lows between 25°F and 49°F. The average low is at or below freezing in November. Together the three months average 2.9 inches of precipitation, about 29% of the yearly total and more than in any other season. Snowfall averages about 1.2 inches for the season, most of it in November. Daylight shortens from about 12.2 hours in September to 10.0 in November.
What the National Park Service says about the weather
Summer High temperatures range between 80°F and 99°F degrees with a few days over 100°F. Afternoon thunderstorms usually cool things down in late July and August. Fall Usually pleasant, with mild days and crisp nights. Winter Daytime temperatures range between 20°F and 50°F with cold nights that can reach 0°F. Snow is periodic, but accumulations are typically only 1-2 inches. Spring Weather is especially unpredictable: it can be windy, cold, and wet, or still, warm, and dry.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Aztec Ruins
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 36.84°N, 108.00°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Aztec Ruins National Monument →
Weather and crowds together
July is both the warmest month and the busiest, with about 1.7× the visitors of the park's average month. January is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Aztec Ruins National Monument. For hotels, cabins and rentals close to the park, see where to stay near Aztec Ruins.
Where to stay near Aztec Ruins
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Frequently Asked Questions
July is the warmest month at Aztec Ruins National Monument, with an average high of 94°F and an average low of 58°F. That is the 1991–2020 average at the nearest long-record NOAA station, 0.1 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Aztec Ruins National Monument, with an average low of 17°F and an average high of 46°F, based on NOAA 1991–2020 climate normals.
August is the wettest month, with about 1.3 inches of precipitation. June is the driest, at about 0.3 inches. The station records about 10.1 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 0.1 miles from the park's reference point, averages about 11 inches of snow a year. January is the snowiest month, at about 4.5 inches. The station averages at least a tenth of an inch of snow in 7 of the 12 months.
Weather at nearby parks
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Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00290692), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.