Chiricahua National Monument, Arizona climate: Climate normals at a NOAA weather station
Chiricahua National Monument's normal year runs from 30°F January nights to 90°F July afternoons, with 18.7 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.3°C, January lows of −1°C, July highs of 32°C, 475 mm of precipitation a year.
- NOAA stationChiricahua National Monument
- Station IDUSC00021664
- Location32.01°N 109.36°W
- Elevation5,300 ft (1,615 m)
On October 23, the normal high in Chiricahua National Monument is 75°F and the normal low 45°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Chiricahua National Monument.
- Jan 56° 30°
- Feb 61° 33°
- Mar 67° 37°
- Apr 74° 41°
- May 83° 49°
- Jun 91° 57°
- Jul 90° 60°
- Aug 87° 60°
- Sep 84° 57°
- Oct 76° 47°
- Nov 66° 38°
- Dec 56° 31°
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 Chiricahua National Monument each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 30°F. The most precipitation falls in August (4.56 in), the least in April (0.27 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 56°F | 30°F | 43.1°F | 1.32 | 1.3 | 5 | <1 | 18 | 10 h 20 min |
| February | 61°F | 33°F | 46.6°F | 1.28 | 0.5 | 5 | <1 | 13 | 11 h |
| March | 67°F | 37°F | 51.5°F | 1.19 | 0.2 | 5 | <1 | 9 | 12 h |
| April | 74°F | 41°F | 57.2°F | 0.27 | 0.0 | 2 | <1 | 4 | 13 h |
| May | 83°F | 49°F | 65.7°F | 0.30 | 0.0 | 2 | 4 | 1 | 13 h 50 min |
| June | 91°F | 57°F | 74.2°F | 0.86 | 0.0 | 4 | 18 | <1 | 14 h 10 min |
| July | 90°F | 60°F | 75.1°F | 3.81 | 0.0 | 13 | 16 | <1 | 14 h |
| August | 87°F | 60°F | 73.4°F | 4.56 | 0.0 | 13 | 11 | <1 | 13 h 20 min |
| September | 84°F | 57°F | 70.2°F | 1.59 | 0.0 | 6 | 6 | <1 | 12 h 20 min |
| October | 76°F | 47°F | 61.8°F | 0.99 | 0.1 | 4 | 1 | 1 | 11 h 30 min |
| November | 66°F | 38°F | 52.0°F | 1.04 | 0.4 | 4 | <1 | 8 | 10 h 30 min |
| December | 56°F | 31°F | 43.1°F | 1.50 | 1.2 | 6 | <1 | 18 | 10 h |
| Year (annual) | 74°F | 45°F | 59.5°F | 18.71 | 3.7 | 69 | 56 | 72 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 13°C | −1°C | 6.2°C | 34 mm | 3 cm |
| February | 16°C | 0°C | 8.1°C | 33 mm | 1 cm |
| March | 19°C | 3°C | 10.8°C | 30 mm | 1 cm |
| April | 23°C | 5°C | 14.0°C | 7 mm | 0 cm |
| May | 28°C | 9°C | 18.7°C | 8 mm | 0 cm |
| June | 33°C | 14°C | 23.4°C | 22 mm | 0 cm |
| July | 32°C | 16°C | 23.9°C | 97 mm | 0 cm |
| August | 30°C | 16°C | 23.0°C | 116 mm | 0 cm |
| September | 29°C | 14°C | 21.2°C | 40 mm | 0 cm |
| October | 25°C | 8°C | 16.6°C | 25 mm | 0 cm |
| November | 19°C | 3°C | 11.1°C | 26 mm | 1 cm |
| December | 13°C | −1°C | 6.2°C | 38 mm | 3 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00021664; 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 Chiricahua National Monument?
Normal highs sit between 65°F and 85°F in March, April, May, September, October and November. Of those, April has the fewest days with rain (2).
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 USC00021664.
When is the last frost at Chiricahua National Monument?
In Chiricahua National Monument, the last spring frost (32°F) comes after April 16 in half of years and after April 30 in one year in ten; the first autumn frost comes before November 8 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 161 year in 10 after April 30; 9 in 10 after March 31
- First autumn frost, half of years before
- November 81 year in 10 before October 21; 9 in 10 before November 23
NOAA puts the median frost-free season at 203 days, and the season without a hard freeze (28°F) at 232 days.
A hard freeze (28°F) comes after March 31 in half of springs and before November 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Chiricahua National Monument in zone 8a in ZIP code 85632, 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 USC00021664; 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 Chiricahua National Monument?
In a normal year in Chiricahua National Monument, 56 days a year reach 90°F (3 of them 100°F or more), 72 nights fall to 32°F or colder and 69 days bring measurable precipitation.
- Days at 90°F or more
- 56a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 72a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 69a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1909) is 109°F, on July 13, 1909; the lowest is −10°F, on January 7, 1913.
The wettest calendar year on that record is 1983, with 32.93 in; the snowiest season is 1959–60, with 45.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00021664; records: ACIS (NOAA Regional Climate Centers), station USC00021664. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Chiricahua National Monument?
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds at Chiricahua National Monument, 5.8 kWh per square metre a day. May is the sunniest month (94%) and February the cloudiest (85%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 86% | 3.6 |
| February | 85% | 4.5 |
| March | 89% | 6.0 |
| April | 92% | 7.4 |
| May | 94% | 8.2 |
| June | 94% | 8.2 |
| July | 86% | 7.1 |
| August | 87% | 6.6 |
| September | 88% | 5.9 |
| October | 92% | 5.1 |
| November | 89% | 3.9 |
| December | 86% | 3.3 |
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 Chiricahua National Monument record?
A normal year at Chiricahua National Monument brings 3,138 heating degree days, 42% fewer than the median U.S. place (5,373), and 1,149 cooling degree days, 27% 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 4,202 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 677 | 0 |
| February | 515 | 0 |
| March | 419 | 1 |
| April | 244 | 8 |
| May | 67 | 91 |
| June | 4 | 280 |
| July | 0 | 313 |
| August | 1 | 259 |
| September | 10 | 166 |
| October | 130 | 31 |
| November | 393 | 1 |
| December | 679 | 0 |
| Year (annual) | 3,138 | 1,149 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00021664. 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.
How does Chiricahua National Monument's climate compare?
Chiricahua National Monument is warmer than 27 of the 97 places with their own NOAA record in Arizona, and wetter than 77. Across the 7,247 U.S. stations with normals, its annual mean of 59.5°F is warmer than 73%.
In the Köppen classification computed from these normals, Chiricahua National Monument 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.
Questions about Chiricahua National Monument's climate
What is the coldest month at Chiricahua National Monument?
January, with a normal high of 56°F and a normal low of 30°F. The warmest is July (90°F by day, 60°F at night).
Does it snow at Chiricahua National Monument?
Yes: 4 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (1.3 inches).
What is the rainiest month at Chiricahua National Monument?
August, with 4.56 in of precipitation in a normal year; the driest is April with 0.27 in.
What plant hardiness zone is Chiricahua National Monument in?
The USDA's 2023 map puts Chiricahua National Monument in zone 8a in ZIP code 85632, the nearest ZIP area.
How late can frost come at Chiricahua National Monument?
In half of years the last 32°F night comes after April 16; in one year in ten it comes after April 30. Waiting until April 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Paradise, AZ9 miles from this station, 56.7°F a year
- Portal (4 mi SW), AZ12 miles from this station, 56.5°F a year
- San Simon, AZ21 miles from this station, 62.9°F a year
- Bowie, AZ24 miles from this station, 63.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made