Coronado National Memorial, Arizona climate: Climate normals at a NOAA weather station
Coronado National Memorial's normal year runs from 33°F January nights to 92°F June afternoons, with 20.8 inches of precipitation and 3 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.3°C, January lows of 1°C, June highs of 33°C, 527 mm of precipitation a year.
- NOAA stationCoronado National Memorial
- Station IDUSC00022140
- Location31.35°N 110.25°W
- Elevation5,242 ft (1,598 m)
On October 24, the normal high in Coronado National Memorial is 75°F and the normal low 48°F, and the chance of measurable rain or snow is 12%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Coronado National Memorial.
- Jan 59° 33°
- Feb 62° 35°
- Mar 68° 39°
- Apr 75° 45°
- May 83° 52°
- Jun 92° 60°
- Jul 89° 63°
- Aug 87° 62°
- Sep 84° 58°
- Oct 77° 50°
- Nov 67° 40°
- Dec 58° 34°
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 Coronado National Memorial each month?
June is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 33°F. The most precipitation falls in August (4.75 in), the least in May (0.23 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 59°F | 33°F | 45.9°F | 1.58 | 0.9 | 6 | <1 | 15 | 10 h 20 min |
| February | 62°F | 35°F | 48.5°F | 1.53 | 0.4 | 5 | <1 | 10 | 11 h |
| March | 68°F | 39°F | 53.8°F | 0.97 | 0.3 | 4 | <1 | 6 | 12 h |
| April | 75°F | 45°F | 60.0°F | 0.29 | 0.1 | 2 | <1 | 3 | 12 h 50 min |
| May | 83°F | 52°F | 67.3°F | 0.23 | 0.0 | 2 | 5 | <1 | 13 h 40 min |
| June | 92°F | 60°F | 75.9°F | 0.85 | 0.0 | 4 | 20 | <1 | 14 h 10 min |
| July | 89°F | 63°F | 75.9°F | 4.56 | 0.0 | 14 | 15 | <1 | 14 h |
| August | 87°F | 62°F | 74.1°F | 4.75 | 0.0 | 14 | 10 | <1 | 13 h 20 min |
| September | 84°F | 58°F | 71.1°F | 2.13 | 0.0 | 7 | 4 | <1 | 12 h 20 min |
| October | 77°F | 50°F | 63.4°F | 1.17 | 0.0 | 4 | <1 | 1 | 11 h 30 min |
| November | 67°F | 40°F | 53.5°F | 0.84 | 0.1 | 3 | <1 | 5 | 10 h 40 min |
| December | 58°F | 34°F | 46.0°F | 1.85 | 1.4 | 5 | <1 | 15 | 10 h 10 min |
| Year (annual) | 75°F | 48°F | 61.3°F | 20.75 | 3.2 | 70 | 53 | 54 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 15°C | 1°C | 7.7°C | 40 mm | 2 cm |
| February | 17°C | 2°C | 9.2°C | 39 mm | 1 cm |
| March | 20°C | 4°C | 12.1°C | 25 mm | 1 cm |
| April | 24°C | 7°C | 15.6°C | 7 mm | 0 cm |
| May | 28°C | 11°C | 19.6°C | 6 mm | 0 cm |
| June | 33°C | 16°C | 24.4°C | 22 mm | 0 cm |
| July | 32°C | 17°C | 24.4°C | 116 mm | 0 cm |
| August | 30°C | 16°C | 23.4°C | 121 mm | 0 cm |
| September | 29°C | 14°C | 21.7°C | 54 mm | 0 cm |
| October | 25°C | 10°C | 17.4°C | 30 mm | 0 cm |
| November | 19°C | 5°C | 11.9°C | 21 mm | 0 cm |
| December | 15°C | 1°C | 7.8°C | 47 mm | 4 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00022140; 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 Coronado National Memorial?
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 USC00022140.
When is the last frost at Coronado National Memorial?
In Coronado National Memorial, the last spring frost (32°F) comes after April 7 in half of years and after April 27 in one year in ten; the first autumn frost comes before November 9 in half of years and before October 25 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 71 year in 10 after April 27; 9 in 10 after March 19
- First autumn frost, half of years before
- November 91 year in 10 before October 25; 9 in 10 before November 27
NOAA puts the median frost-free season at 213 days, and the season without a hard freeze (28°F) at 242 days.
A hard freeze (28°F) comes after March 19 in half of springs and before November 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Coronado National Memorial in zone 8b in ZIP code 85615, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 8b: the coldest night of a typical year reaches 17°F (16 complete years).
Frost dates for every NOAA station in Arizona · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00022140; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Coronado National Memorial?
In a normal year in Coronado National Memorial, 53 days a year reach 90°F (2 of them 100°F or more), 54 nights fall to 32°F or colder and 70 days bring measurable precipitation.
- Days at 90°F or more
- 53a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 54a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 70a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1960) is 106°F, on June 19, 1960; the lowest is 1°F, on December 8, 1978.
The wettest calendar year on that record is 1978, with 33.26 in; the snowiest season is 1972–73, with 26.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00022140; records: ACIS (NOAA Regional Climate Centers), station USC00022140. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Coronado National Memorial?
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds at Coronado National Memorial, 5.8 kWh per square metre a day. May is the sunniest month (94%) and July the cloudiest (79%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 87% | 3.8 |
| February | 87% | 4.7 |
| March | 90% | 6.2 |
| April | 94% | 7.6 |
| May | 94% | 8.3 |
| June | 92% | 8.1 |
| July | 79% | 6.5 |
| August | 83% | 6.3 |
| September | 87% | 5.8 |
| October | 92% | 5.2 |
| November | 90% | 4.1 |
| December | 87% | 3.5 |
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 Coronado National Memorial record?
A normal year at Coronado National Memorial brings 2,660 heating degree days, 50% fewer than the median U.S. place (5,373), and 1,323 cooling degree days, 46% 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 4,648 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 594 | 0 |
| February | 461 | 0 |
| March | 349 | 2 |
| April | 166 | 18 |
| May | 49 | 119 |
| June | 1 | 330 |
| July | 0 | 336 |
| August | 0 | 281 |
| September | 5 | 188 |
| October | 99 | 47 |
| November | 346 | 2 |
| December | 591 | 0 |
| Year (annual) | 2,660 | 1,323 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00022140. 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 Coronado National Memorial been warmer than normal?
2024 averaged 63.1°F, 1.8°F above the 1991-2020 normal of 61.3°F. 2 of the 2 complete years since 2023 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2023 | 62.6°F | +1.3°F | 17.51 | – |
| 2024 | 63.1°F | +1.8°F | 18.33 | – |
Over 43 complete years from 1962 to 2024, the station's annual mean temperature rose at a fitted 6.0°F per century (+0.33°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00022140; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Coronado National Memorial's climate compare?
Coronado National Memorial is warmer than 32 of the 97 places with their own NOAA record in Arizona, and wetter than 83. Across the 7,247 U.S. stations with normals, its annual mean of 61.3°F is warmer than 78%.
In the Köppen classification computed from these normals, Coronado National Memorial 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 Coronado National Memorial share this climate record?
2 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.
- Miracle Valley, AZ734 people · 7 mi E
- Palominas, AZ278 people · 9 mi E
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 Coronado National Memorial's climate
What is the coldest month at Coronado National Memorial?
January, with a normal high of 59°F and a normal low of 33°F. The warmest is June (92°F by day, 60°F at night).
Does it snow at Coronado National Memorial?
Yes: 3 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in December (1.4 inches).
What is the rainiest month at Coronado National Memorial?
August, with 4.75 in of precipitation in a normal year; the driest is May with 0.23 in.
What plant hardiness zone is Coronado National Memorial in?
The USDA's 2023 map puts Coronado National Memorial in zone 8b in ZIP code 85615, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 17°F (16 years, 1991-2020): zone 8b.
How late can frost come at Coronado National Memorial?
In half of years the last 32°F night comes after April 7; in one year in ten it comes after April 27. Waiting until April 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Sierra Vista, AZ13 miles from this station, 61.6°F a year
- Bisbee, AZ21 miles from this station, 59.8°F a year
- Fort Huachuca Pioneer Airfield, AZ21 miles from this station, 62.7°F a year
- Canelo (1 mi NW), AZ22 miles from this station, 58.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made