Natural Bridge, Arizona climate: Climate normals at a NOAA weather station
Natural Bridge's normal year runs from 30°F December nights to 91°F July afternoons, with 21.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.8°C, December lows of −1°C, July highs of 33°C, 552 mm of precipitation a year.
- NOAA stationNatural Bridge
- Station IDUSC00025825
- Location34.32°N 111.45°W
- Elevation4,608 ft (1,405 m)
On October 23, the normal high in Natural Bridge is 72°F and the normal low 44°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Natural Bridge.
- Jan 54° 30°
- Feb 57° 32°
- Mar 64° 36°
- Apr 70° 41°
- May 79° 48°
- Jun 88° 58°
- Jul 91° 65°
- Aug 89° 62°
- Sep 84° 57°
- Oct 74° 46°
- Nov 63° 36°
- Dec 53° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Natural Bridge each month?
July is the warmest month, with normal highs of 91°F; December the coldest, with normal lows of 30°F. The most precipitation falls in January (2.94 in), the least in June (0.28 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 54°F | 30°F | 41.9°F | 2.94 | – | <1 | 20 | 10 h 10 min |
| February | 57°F | 32°F | 44.6°F | 2.79 | – | <1 | 15 | 11 h |
| March | 64°F | 36°F | 49.9°F | 1.94 | – | <1 | 9 | 11 h 50 min |
| April | 70°F | 41°F | 55.5°F | 0.80 | – | <1 | 3 | 13 h |
| May | 79°F | 48°F | 63.0°F | 0.59 | – | 1 | 1 | 14 h |
| June | 88°F | 58°F | 72.8°F | 0.28 | – | 16 | <1 | 14 h 30 min |
| July | 91°F | 65°F | 77.7°F | 2.67 | – | 20 | <1 | 14 h 10 min |
| August | 89°F | 62°F | 75.4°F | 2.62 | – | 15 | <1 | 13 h 30 min |
| September | 84°F | 57°F | 70.0°F | 1.95 | – | 5 | <1 | 12 h 30 min |
| October | 74°F | 46°F | 60.4°F | 1.30 | – | 1 | 1 | 11 h 20 min |
| November | 63°F | 36°F | 49.6°F | 1.60 | – | <1 | 7 | 10 h 20 min |
| December | 53°F | 30°F | 41.8°F | 2.24 | – | <1 | 20 | 9 h 50 min |
| Year (annual) | 72°F | 45°F | 58.6°F | 21.72 | – | 57 | 76 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 12°C | −1°C | 5.5°C | 75 mm |
| February | 14°C | 0°C | 7.0°C | 71 mm |
| March | 18°C | 2°C | 9.9°C | 49 mm |
| April | 21°C | 5°C | 13.1°C | 20 mm |
| May | 26°C | 9°C | 17.2°C | 15 mm |
| June | 31°C | 14°C | 22.7°C | 7 mm |
| July | 33°C | 18°C | 25.4°C | 68 mm |
| August | 32°C | 17°C | 24.1°C | 67 mm |
| September | 29°C | 14°C | 21.1°C | 50 mm |
| October | 24°C | 8°C | 15.8°C | 33 mm |
| November | 17°C | 2°C | 9.8°C | 41 mm |
| December | 12°C | −1°C | 5.4°C | 57 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Payson (9 miles away), gets 19 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00025825; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Natural Bridge?
Normal highs sit between 65°F and 85°F in April, May, September and October.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00025825.
When is the last frost at Natural Bridge?
In Natural Bridge, the last spring frost (32°F) comes after April 9 in half of years and after May 10 in one year in ten; the first autumn frost comes before November 10 in half of years and before October 21 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 91 year in 10 after May 10; 9 in 10 after March 17
- First autumn frost, half of years before
- November 101 year in 10 before October 21; 9 in 10 before November 24
NOAA puts the median frost-free season at 211 days, and the season without a hard freeze (28°F) at 248 days.
A hard freeze (28°F) comes after March 16 in half of springs and before November 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Natural Bridge in zone 8a in ZIP code 85544, the nearest ZIP area.
Frost dates for every NOAA station in Arizona · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00025825; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Natural Bridge?
In a normal year in Natural Bridge, 57 days a year reach 90°F (2 of them 100°F or more) and 76 nights fall to 32°F or colder.
- Days at 90°F or more
- 57a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 76a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
The highest temperature in this station's record (since 1914) is 109°F, on June 27, 1970; the lowest is 0°F, on January 13, 1963.
The wettest calendar year on that record is 1965, with 39.80 in; the snowiest season is 1931–32, with 56.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00025825; records: ACIS (NOAA Regional Climate Centers), station USC00025825. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Natural Bridge?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds at Natural Bridge, 5.6 kWh per square metre a day. June is the sunniest month (95%) and December the cloudiest (81%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 82% | 3.3 |
| February | 82% | 4.2 |
| March | 86% | 5.7 |
| April | 89% | 7.1 |
| May | 91% | 8.0 |
| June | 95% | 8.5 |
| July | 82% | 6.9 |
| August | 84% | 6.5 |
| September | 88% | 5.9 |
| October | 90% | 4.9 |
| November | 88% | 3.7 |
| December | 81% | 2.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Natural Bridge record?
A normal year at Natural Bridge brings 3,538 heating degree days, 34% fewer than the median U.S. place (5,373), and 1,218 cooling degree days, 34% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,033 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 715 | 0 |
| February | 573 | 0 |
| March | 470 | 0 |
| April | 287 | 4 |
| May | 119 | 59 |
| June | 7 | 243 |
| July | 0 | 394 |
| August | 0 | 324 |
| September | 16 | 168 |
| October | 170 | 28 |
| November | 461 | 0 |
| December | 720 | 0 |
| Year (annual) | 3,538 | 1,218 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00025825. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Natural Bridge been warmer than normal?
2024 averaged 60.1°F, 1.5°F above the 1991-2020 normal of 58.6°F. 3 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 59.5°F | +0.9°F | 20.19 |
| 2023 | 59.0°F | +0.4°F | 23.84 |
| 2024 | 60.1°F | +1.5°F | 24.88 |
Source: observed years: ACIS, station USC00025825. A year counts only with all twelve months complete.
How does Natural Bridge's climate compare?
Natural Bridge is warmer than 27 of the 97 places with their own NOAA record in Arizona, and wetter than 86. Across the 7,247 U.S. stations with normals, its annual mean of 58.6°F is warmer than 71%.
In the Köppen classification computed from these normals, Natural Bridge is Csa: temperate, dry-summer, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Natural Bridge share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Pine, AZ1,899 people · 4 mi N
- Strawberry, AZ881 people · 6 mi NW
- Geronimo Estates, AZ19 people · 6 mi NE
- Washington Park, AZ16 people · 12 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Natural Bridge's climate
What is the coldest month at Natural Bridge?
December, with a normal high of 53°F and a normal low of 30°F. The warmest is July (91°F by day, 65°F at night).
Does it snow at Natural Bridge?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Payson (9 miles away), records 19 inches of snow in a normal year.
What is the rainiest month at Natural Bridge?
January, with 2.94 in of precipitation in a normal year; the driest is June with 0.28 in.
What plant hardiness zone is Natural Bridge in?
The USDA's 2023 map puts Natural Bridge in zone 8a in ZIP code 85544, the nearest ZIP area.
How late can frost come at Natural Bridge?
In half of years the last 32°F night comes after April 9; in one year in ten it comes after May 10. Waiting until May 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Payson, AZ9 miles from this station, 57.0°F a year
- Childs, AZ14 miles from this station, 64.2°F a year
- Blue Ridge, AZ25 miles from this station, 48.8°F a year
- Happy Jack Ranger Station, AZ29 miles from this station, 45.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made