Diamond M Ranch, Arizona climate: Climate normals at a NOAA weather station
Diamond M Ranch's normal year runs from 22°F December nights to 92°F July afternoons, with 15.3 inches of precipitation and 21 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.8°C, December lows of −6°C, July highs of 33°C, 389 mm of precipitation a year.
- NOAA stationDiamond M Ranch
- Station IDUSC00022527
- Location35.29°N 113.37°W
- Elevation5,492 ft (1,674 m)
On October 24, the normal high in Diamond M Ranch is 70°F and the normal low 34°F, and the chance of measurable rain or snow is 10%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Diamond M Ranch.
- Jan 52° 23°
- Feb 54° 24°
- Mar 61° 28°
- Apr 67° 32°
- May 76° 39°
- Jun 88° 46°
- Jul 92° 55°
- Aug 89° 54°
- Sep 84° 47°
- Oct 73° 36°
- Nov 62° 27°
- Dec 52° 22°
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 Diamond M Ranch each month?
July is the warmest month, with normal highs of 92°F; December the coldest, with normal lows of 22°F. The most precipitation falls in August (2.45 in), the least in June (0.13 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 52°F | 23°F | 37.3°F | 1.41 | 4.1 | 4 | <1 | 29 | 10 h |
| February | 54°F | 24°F | 39.0°F | 1.85 | 5.0 | 4 | <1 | 26 | 10 h 50 min |
| March | 61°F | 28°F | 44.2°F | 1.32 | 2.8 | 4 | <1 | 26 | 11 h 50 min |
| April | 67°F | 32°F | 49.5°F | 0.65 | 2.2 | 2 | <1 | 17 | 13 h |
| May | 76°F | 39°F | 57.6°F | 0.23 | 0.0 | 2 | 2 | 5 | 14 h |
| June | 88°F | 46°F | 66.9°F | 0.13 | 0.0 | 1 | 17 | <1 | 14 h 30 min |
| July | 92°F | 55°F | 73.3°F | 2.37 | 0.0 | 8 | 21 | <1 | 14 h 20 min |
| August | 89°F | 54°F | 71.6°F | 2.45 | 0.0 | 8 | 16 | <1 | 13 h 30 min |
| September | 84°F | 47°F | 65.6°F | 1.26 | 0.0 | 3 | 7 | <1 | 12 h 30 min |
| October | 73°F | 36°F | 54.4°F | 1.49 | 0.0 | 3 | <1 | 8 | 11 h 20 min |
| November | 62°F | 27°F | 44.3°F | 0.91 | 2.0 | 2 | <1 | 24 | 10 h 20 min |
| December | 52°F | 22°F | 36.6°F | 1.25 | 4.9 | 4 | <1 | 29 | 9 h 50 min |
| Year (annual) | 71°F | 36°F | 53.3°F | 15.32 | 21.0 | 45 | 63 | 165 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 11°C | −5°C | 2.9°C | 36 mm | 10 cm |
| February | 12°C | −5°C | 3.9°C | 47 mm | 13 cm |
| March | 16°C | −2°C | 6.8°C | 34 mm | 7 cm |
| April | 20°C | 0°C | 9.7°C | 17 mm | 6 cm |
| May | 25°C | 4°C | 14.2°C | 6 mm | 0 cm |
| June | 31°C | 8°C | 19.4°C | 3 mm | 0 cm |
| July | 33°C | 13°C | 22.9°C | 60 mm | 0 cm |
| August | 32°C | 12°C | 22.0°C | 62 mm | 0 cm |
| September | 29°C | 8°C | 18.7°C | 32 mm | 0 cm |
| October | 23°C | 2°C | 12.4°C | 38 mm | 0 cm |
| November | 16°C | −3°C | 6.8°C | 23 mm | 5 cm |
| December | 11°C | −6°C | 2.6°C | 32 mm | 12 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00022527; 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 Diamond M Ranch?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, May 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 USC00022527.
When is the last frost at Diamond M Ranch?
In Diamond M Ranch, the last spring frost (32°F) comes after May 17 in half of years and after June 4 in one year in ten; the first autumn frost comes before October 10 in half of years and before September 28 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
- May 171 year in 10 after June 4; 9 in 10 after May 1
- First autumn frost, half of years before
- October 101 year in 10 before September 28; 9 in 10 before October 26
NOAA puts the median frost-free season at 146 days, and the season without a hard freeze (28°F) at 177 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 23 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Diamond M Ranch in zone 8a in ZIP code 86437, 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 7a: the coldest night of a typical year reaches 3°F (18 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Arizona · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00022527; 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 Diamond M Ranch?
In a normal year in Diamond M Ranch, 63 days a year reach 90°F (4 of them 100°F or more), 165 nights fall to 32°F or colder and 45 days bring measurable precipitation.
- Days at 90°F or more
- 63a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 165a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 45a normal year
- Days with 1 inch of snow or more
- 6a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00022527.
How sunny is it at Diamond M Ranch?
Over a year 88% of the sunlight that would reach the ground under clear skies gets through the clouds at Diamond M Ranch, 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 | 83% | 3.1 |
| February | 83% | 4.1 |
| March | 86% | 5.6 |
| April | 89% | 7.0 |
| May | 91% | 7.9 |
| June | 95% | 8.5 |
| July | 86% | 7.2 |
| August | 88% | 6.8 |
| September | 91% | 6.0 |
| October | 90% | 4.8 |
| November | 88% | 3.5 |
| December | 81% | 2.8 |
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 Diamond M Ranch record?
A normal year at Diamond M Ranch brings 4,879 heating degree days, 9% fewer than the median U.S. place (5,373), and 658 cooling degree days, 28% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,917 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 859 | 0 |
| February | 728 | 0 |
| March | 646 | 0 |
| April | 464 | 0 |
| May | 245 | 14 |
| June | 46 | 102 |
| July | 1 | 257 |
| August | 4 | 208 |
| September | 58 | 75 |
| October | 329 | 2 |
| November | 620 | 0 |
| December | 880 | 0 |
| Year (annual) | 4,879 | 658 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00022527. 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 Diamond M Ranch's climate compare?
Diamond M Ranch is warmer than 15 of the 97 places with their own NOAA record in Arizona, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 53.3°F is warmer than 55%.
In the Köppen classification computed from these normals, Diamond M Ranch 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 Diamond M Ranch 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.
- Peach Springs, AZ1,196 people · 17 mi N
- Truxton, AZ105 people · 17 mi NW
- Valentine, AZ43 people · 18 mi W
- Crozier, AZ19 people · 18 mi NW
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 Diamond M Ranch's climate
What is the coldest month at Diamond M Ranch?
December, with a normal high of 52°F and a normal low of 22°F. The warmest is July (92°F by day, 55°F at night).
Does it snow at Diamond M Ranch?
Yes: 21 inches in a normal year, falling on 8 days with 0.1 inch or more, the most in February (5.0 inches).
What is the rainiest month at Diamond M Ranch?
August, with 2.45 in of precipitation in a normal year; the driest is June with 0.13 in.
What plant hardiness zone is Diamond M Ranch in?
The USDA's 2023 map puts Diamond M Ranch in zone 8a in ZIP code 86437, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 3°F (18 years, 1991-2020): zone 7a.
How late can frost come at Diamond M Ranch?
In half of years the last 32°F night comes after May 17; in one year in ten it comes after June 4. Waiting until June 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Seligman, AZ27 miles from this station, 55.4°F a year
- Kingman, AZ32 miles from this station, 62.6°F a year
- Walnut Creek, AZ40 miles from this station, 53.9°F a year
- Wikieup, AZ43 miles from this station, 67.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made