Heber (Black Mesa) Ranger Station, Arizona climate: Climate normals at a NOAA weather station
Heber (Black Mesa) Ranger Station's normal year runs from 20°F January nights to 83°F July afternoons, with 18.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, January lows of −7°C, July highs of 28°C, 467 mm of precipitation a year.
- NOAA stationHeber (Black Mesa) Ranger Station
- Station IDUSC00023961
- Location34.39°N 110.56°W
- Elevation6,590 ft (2,009 m)
On October 14, the normal high in Heber (Black Mesa) Ranger Station is 68°F and the normal low 37°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Heber (Black Mesa) Ranger Station.
- Jan 46° 20°
- Feb 50° 23°
- Mar 57° 28°
- Apr 64° 32°
- May 71° 39°
- Jun 82° 48°
- Jul 83° 56°
- Aug 81° 55°
- Sep 76° 48°
- Oct 67° 36°
- Nov 55° 27°
- Dec 46° 20°
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 Heber (Black Mesa) Ranger Station each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 20°F. The most precipitation falls in August (2.98 in), the least in June (0.45 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 46°F | 20°F | 32.7°F | 1.74 | – | <1 | 29 | 10 h 10 min |
| February | 50°F | 23°F | 36.2°F | 1.65 | – | <1 | 25 | 11 h |
| March | 57°F | 28°F | 42.1°F | 1.41 | – | <1 | 24 | 11 h 50 min |
| April | 64°F | 32°F | 47.8°F | 0.67 | – | <1 | 18 | 13 h |
| May | 71°F | 39°F | 54.9°F | 0.63 | – | <1 | 7 | 14 h |
| June | 82°F | 48°F | 64.8°F | 0.45 | – | 3 | 1 | 14 h 30 min |
| July | 83°F | 56°F | 69.4°F | 2.67 | – | 4 | <1 | 14 h 20 min |
| August | 81°F | 55°F | 67.6°F | 2.98 | – | 1 | <1 | 13 h 30 min |
| September | 76°F | 48°F | 61.5°F | 1.84 | – | <1 | 1 | 12 h 30 min |
| October | 67°F | 36°F | 51.5°F | 1.22 | – | <1 | 12 | 11 h 20 min |
| November | 55°F | 27°F | 41.0°F | 1.24 | – | <1 | 24 | 10 h 20 min |
| December | 46°F | 20°F | 32.7°F | 1.87 | – | <1 | 29 | 9 h 50 min |
| Year (annual) | 65°F | 36°F | 50.2°F | 18.37 | – | 8 | 170 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 8°C | −7°C | 0.4°C | 44 mm |
| February | 10°C | −5°C | 2.3°C | 42 mm |
| March | 14°C | −2°C | 5.6°C | 36 mm |
| April | 18°C | 0°C | 8.8°C | 17 mm |
| May | 22°C | 4°C | 12.7°C | 16 mm |
| June | 28°C | 9°C | 18.2°C | 11 mm |
| July | 28°C | 13°C | 20.8°C | 68 mm |
| August | 27°C | 13°C | 19.8°C | 76 mm |
| September | 24°C | 9°C | 16.4°C | 47 mm |
| October | 19°C | 2°C | 10.8°C | 31 mm |
| November | 13°C | −3°C | 5.0°C | 31 mm |
| December | 8°C | −7°C | 0.4°C | 47 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00023961; 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 Heber (Black Mesa) Ranger Station?
Normal highs sit between 65°F and 85°F in May, June, July, August, 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 USC00023961.
When is the last frost at Heber (Black Mesa) Ranger Station?
In Heber (Black Mesa) Ranger Station, the last spring frost (32°F) comes after May 23 in half of years and after June 6 in one year in ten; the first autumn frost comes before October 5 in half of years and before September 24 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 231 year in 10 after June 6; 9 in 10 after May 6
- First autumn frost, half of years before
- October 51 year in 10 before September 24; 9 in 10 before October 19
NOAA puts the median frost-free season at 135 days, and the season without a hard freeze (28°F) at 159 days.
A hard freeze (28°F) comes after May 8 in half of springs and before October 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Heber (Black Mesa) Ranger Station in zone 6b in ZIP code 85933, 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 USC00023961; 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 Heber (Black Mesa) Ranger Station?
In a normal year in Heber (Black Mesa) Ranger Station, 8 days a year reach 90°F and 170 nights fall to 32°F or colder.
- Days at 90°F or more
- 8a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 170a normal year
- Days that stay below freezing
- 6high of 32°F or less
The highest temperature in this station's record (since 1950) is 100°F, on June 26, 1970; the lowest is −25°F, on January 13, 1963.
The wettest calendar year on that record is 1967, with 24.51 in; the snowiest season is 1967–68, with 120.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00023961; records: ACIS (NOAA Regional Climate Centers), station USC00023961. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Heber (Black Mesa) Ranger Station?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds at Heber (Black Mesa) Ranger Station, 5.7 kWh per square metre a day. June is the sunniest month (93%) and July the cloudiest (80%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 84% | 3.3 |
| February | 84% | 4.3 |
| March | 88% | 5.8 |
| April | 90% | 7.2 |
| May | 91% | 8.0 |
| June | 93% | 8.4 |
| July | 80% | 6.8 |
| August | 83% | 6.4 |
| September | 88% | 6.0 |
| 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 Heber (Black Mesa) Ranger Station record?
A normal year at Heber (Black Mesa) Ranger Station brings 5,704 heating degree days, 6% more than the median U.S. place (5,373), and 331 cooling degree days, 64% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,298 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,000 | 0 |
| February | 805 | 0 |
| March | 710 | 0 |
| April | 516 | 0 |
| May | 316 | 5 |
| June | 73 | 67 |
| July | 5 | 141 |
| August | 15 | 97 |
| September | 126 | 21 |
| October | 419 | 0 |
| November | 720 | 0 |
| December | 1,000 | 0 |
| Year (annual) | 5,704 | 331 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00023961. 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 Heber (Black Mesa) Ranger Station been warmer than normal?
2025 averaged 51.9°F, 1.7°F above the 1991-2020 normal of 50.2°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2025 | 51.9°F | +1.7°F | 13.39 |
Over 30 complete years from 1952 to 2025, the station's annual mean temperature rose at a fitted 4.9°F per century (+0.27°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00023961; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Heber (Black Mesa) Ranger Station's climate compare?
Heber (Black Mesa) Ranger Station is warmer than 8 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 50.2°F is warmer than 41%.
In the Köppen classification computed from these normals, Heber (Black Mesa) Ranger Station is Csb: temperate, dry-summer, warm 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 Heber (Black Mesa) Ranger Station 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.
- Heber-Overgaard, AZ3,216 people · 2 mi NW
- Cibecue, AZ2,300 people · 25 mi S
- Forest Lakes, AZ217 people · 15 mi W
- Clay Springs, AZ205 people · 15 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 Heber (Black Mesa) Ranger Station's climate
What is the coldest month at Heber (Black Mesa) Ranger Station?
January, with a normal high of 46°F and a normal low of 20°F. The warmest is July (83°F by day, 56°F at night).
What is the rainiest month at Heber (Black Mesa) Ranger Station?
August, with 2.98 in of precipitation in a normal year; the driest is June with 0.45 in.
What plant hardiness zone is Heber (Black Mesa) Ranger Station in?
The USDA's 2023 map puts Heber (Black Mesa) Ranger Station in zone 6b in ZIP code 85933, the nearest ZIP area.
How late can frost come at Heber (Black Mesa) Ranger Station?
In half of years the last 32°F night comes after May 23; in one year in ten it comes after June 6. Waiting until June 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Snowflake, AZ28 miles from this station, 53.5°F a year
- Pleasant Valley, AZ31 miles from this station, 54.9°F a year
- Show Low, AZ33 miles from this station, 53.1°F a year
- Blue Ridge, AZ39 miles from this station, 48.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made