Updated October 2026
Rainbow Bridge National Monument Weather by Month
Rainbow Bridge National Monument is warmest in July, when the nearest NOAA climate station averages a high of 98°F and a low of 73°F, and coldest in December, with an average high of 45°F and an average low of 30°F. August and October are the wettest months, with about 0.8 inches of precipitation each.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 28.8 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Rainbow Bridge National Monument can differ from these, particularly with elevation.
Warmest month
Jul
98°F avg high
Coldest month
Dec
30°F avg low
Longest days
Jun
14.5 h of daylight
Average weather at Rainbow Bridge by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 46°F | 30°F | 0.6 in | 9.7 h |
| February | 53°F | 34°F | 0.6 in | 10.6 h |
| March | 63°F | 41°F | 0.5 in | 11.7 h |
| April | 72°F | 47°F | 0.4 in | 13.0 h |
| May | 82°F | 56°F | 0.4 in | 14.0 h |
| June | 94°F | 66°F | 0.1 in | 14.5 h |
| July | 98°F | 73°F | 0.6 in | 14.3 h |
| August | 95°F | 70°F | 0.8 in | 13.4 h |
| September | 87°F | 62°F | 0.7 in | 12.2 h |
| October | 72°F | 49°F | 0.8 in | 11.0 h |
| November | 57°F | 38°F | 0.4 in | 10.0 h |
| December | 45°F | 30°F | 0.4 in | 9.5 h |
| Year total | 6.3 in |
NOAA 1991–2020 climate normals from station USW00003162, 28.8 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Rainbow Bridge is at that time of year.
Rainbow Bridge weather by season
Winter: December to February
Average highs climb from 45°F in December to 53°F in February, with average lows between 30°F and 34°F. The average low is at or below freezing in December and January. Together the three months average 1.6 inches of precipitation, about 25% of the yearly total. Daylight is at its shortest, about 9.5 hours in December.
Spring: March to May
Average highs climb from 63°F in March to 82°F in May, with average lows between 41°F and 56°F. Together the three months average 1.3 inches of precipitation, about 21% of the yearly total and less than in any other season. Daylight lengthens from about 11.7 hours in March to 14.0 in May.
Summer: June to August
Average highs peak at 98°F in July, between 94°F in June and 95°F in August, with average lows between 66°F and 73°F. The average high is 90°F or hotter in all three months. Together the three months average 1.5 inches of precipitation, about 24% of the yearly total. Daylight is at its longest, about 14.5 hours in June.
Fall: September to November
Average highs fall from 87°F in September to 57°F in November, with average lows between 38°F and 62°F. Together the three months average 1.9 inches of precipitation, about 30% of the yearly total and more than in any other season. Daylight shortens from about 12.2 hours in September to 10.0 in November.
What the National Park Service says about the weather
Summers are extremely hot with little, if any, shade. Winters are moderately cold with night time lows often below freezing. Spring weather is highly variable with extended periods of strong winds. Fall is generally mild. Temperatures range from 110°F (43°C) in June & July to 20°F (-7°C) in December & January. Although precipitation is generally less than 6 inches (15cm) annually, both heavy rains and flash flooding can occur, particularly during the summer monsoon season.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Rainbow Bridge
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 37.08°N, 110.97°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 Rainbow Bridge National Monument →
Weather and crowds together
July is both the warmest month and the busiest, with about 2.9× 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 Rainbow Bridge National Monument. For hotels, cabins and rentals close to the park, see where to stay near Rainbow Bridge.
Where to stay near Rainbow Bridge
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Top-rated places to stay near Rainbow Bridge
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Frequently Asked Questions
July is the warmest month at Rainbow Bridge National Monument, with an average high of 98°F and an average low of 73°F. That is the 1991–2020 average at the nearest long-record NOAA station, 28.8 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
December is the coldest month at Rainbow Bridge National Monument, with an average low of 30°F and an average high of 45°F, based on NOAA 1991–2020 climate normals.
August and October are the wettest months, with about 0.8 inches of precipitation each. June is the driest, at about 0.1 inches. The station records about 6.3 inches of precipitation in an average year.
Daylight at Rainbow Bridge National Monument runs from about 9.5 hours a day in December to about 14.5 hours in June, computed from the park's latitude.
Weather at nearby parks
30 mi away · warmest in July (97°F)
34 mi away · warmest in July (86°F)
64 mi away · warmest in July (89°F)
75 mi away · warmest in July (80°F)
85 mi away · warmest in July (91°F)
98 mi away · warmest in July (85°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00003162), 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.