Holbrook, Arizona climate: Normal weather by month, frost dates and records
Holbrook's normal year runs from 22°F December nights to 94°F July afternoons, with 8.1 inches of precipitation and 3 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.7°C, December lows of −6°C, July highs of 35°C, 207 mm of precipitation a year.
- NOAA stationHolbrook
- Station IDUSC00024089
- Location34.91°N 110.15°W
- Elevation5,085 ft (1,550 m)
- Population4,837
On October 23, the normal high in Holbrook is 72°F and the normal low 38°F, and the chance of measurable rain or snow is 11%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Holbrook.
- Jan 51° 22°
- Feb 57° 25°
- Mar 65° 31°
- Apr 72° 37°
- May 81° 46°
- Jun 92° 55°
- Jul 94° 62°
- Aug 91° 61°
- Sep 86° 54°
- Oct 75° 41°
- Nov 61° 29°
- Dec 50° 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 in Holbrook each month?
July is the warmest month, with normal highs of 94°F; December the coldest, with normal lows of 22°F. The most precipitation falls in August (1.71 in), the least in June (0.25 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 51°F | 22°F | 36.5°F | 0.73 | 0.5 | 4 | <1 | 28 | 10 h |
| February | 57°F | 25°F | 41.0°F | 0.35 | 0.5 | 4 | <1 | 23 | 10 h 50 min |
| March | 65°F | 31°F | 47.9°F | 0.52 | 0.6 | 4 | <1 | 21 | 11 h 50 min |
| April | 72°F | 37°F | 54.7°F | 0.26 | 0.5 | 2 | <1 | 9 | 13 h |
| May | 81°F | 46°F | 63.6°F | 0.29 | 0.0 | 2 | 4 | 1 | 14 h |
| June | 92°F | 55°F | 73.2°F | 0.25 | 0.0 | 2 | 19 | <1 | 14 h 30 min |
| July | 94°F | 62°F | 78.3°F | 1.05 | 0.0 | 5 | 25 | <1 | 14 h 20 min |
| August | 91°F | 61°F | 76.2°F | 1.71 | 0.0 | 7 | 20 | <1 | 13 h 30 min |
| September | 86°F | 54°F | 69.6°F | 1.13 | 0.0 | 5 | 7 | <1 | 12 h 30 min |
| October | 75°F | 41°F | 57.7°F | 0.90 | 0.0 | 3 | 1 | 5 | 11 h 20 min |
| November | 61°F | 29°F | 44.9°F | 0.50 | 0.6 | 3 | <1 | 22 | 10 h 20 min |
| December | 50°F | 22°F | 35.6°F | 0.44 | 0.6 | 4 | <1 | 28 | 9 h 50 min |
| Year (annual) | 73°F | 40°F | 56.6°F | 8.13 | 3.3 | 45 | 77 | 137 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 11°C | −6°C | 2.5°C | 19 mm | 1 cm |
| February | 14°C | −4°C | 5.0°C | 9 mm | 1 cm |
| March | 18°C | −1°C | 8.8°C | 13 mm | 2 cm |
| April | 22°C | 3°C | 12.6°C | 7 mm | 1 cm |
| May | 27°C | 8°C | 17.6°C | 7 mm | 0 cm |
| June | 33°C | 13°C | 22.9°C | 6 mm | 0 cm |
| July | 35°C | 17°C | 25.7°C | 27 mm | 0 cm |
| August | 33°C | 16°C | 24.6°C | 43 mm | 0 cm |
| September | 30°C | 12°C | 20.9°C | 29 mm | 0 cm |
| October | 24°C | 5°C | 14.3°C | 23 mm | 0 cm |
| November | 16°C | −2°C | 7.2°C | 13 mm | 2 cm |
| December | 10°C | −6°C | 2.0°C | 11 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00024089; 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.
When is the best weather to visit Holbrook?
Normal highs sit between 65°F and 85°F in March, April, May and October. 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 USC00024089.
When is the last frost in Holbrook?
In Holbrook, the last spring frost (32°F) comes after April 22 in half of years and after May 7 in one year in ten; the first autumn frost comes before October 24 in half of years and before October 12 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 221 year in 10 after May 7; 9 in 10 after April 8
- First autumn frost, half of years before
- October 241 year in 10 before October 12; 9 in 10 before November 5
NOAA puts the median frost-free season at 184 days, and the season without a hard freeze (28°F) at 209 days.
A hard freeze (28°F) comes after April 6 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Holbrook in zone 7a in ZIP code 86025, 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 USC00024089; 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 in Holbrook?
In a normal year in Holbrook, 77 days a year reach 90°F (9 of them 100°F or more), 137 nights fall to 32°F or colder and 45 days bring measurable precipitation.
- Days at 90°F or more
- 77a normal year
- Days at 100°F or more
- 9a normal year
- Nights at 32°F or colder
- 137a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 45a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1893) is 108°F, on June 28, 1918; the lowest is −21°F, on December 14, 1898.
The wettest calendar year on that record is 1905, with 17.63 in; the snowiest season is 1912–13, with 32.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00024089; records: ACIS (NOAA Regional Climate Centers), station USC00024089. Records use complete months only; a month missing more than three days is left out.
How sunny is Holbrook?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Holbrook, 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 much heating and cooling does Holbrook need?
A normal year in Holbrook brings 4,269 heating degree days, 21% fewer than the median U.S. place (5,373), and 1,237 cooling degree days, 36% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,920 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 883 | 0 |
| February | 673 | 0 |
| March | 530 | 0 |
| April | 311 | 3 |
| May | 99 | 55 |
| June | 7 | 253 |
| July | 0 | 411 |
| August | 1 | 348 |
| September | 18 | 157 |
| October | 236 | 11 |
| November | 603 | 0 |
| December | 910 | 0 |
| Year (annual) | 4,269 | 1,237 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00024089. 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 Holbrook's climate compare?
Holbrook is warmer than 19 of the other 96 places with their own NOAA record in Arizona, and wetter than 24. Across the 7,247 U.S. stations with normals, its annual mean of 56.6°F is warmer than 65%.
In the Köppen classification computed from these normals, Holbrook is BWk: cold desert. 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 Holbrook share this climate record?
3 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.
- Joseph City, AZ1,995 people · 11 mi W
- Dilkon, AZ1,267 people · 32 mi N
- Sun Valley, AZ77 people · 9 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 Holbrook's climate
What is the coldest month in Holbrook?
December, with a normal high of 50°F and a normal low of 22°F. The warmest is July (94°F by day, 62°F at night).
Does it snow in Holbrook?
Yes: 3 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in March (0.6 inches).
What is the rainiest month in Holbrook?
August, with 1.71 in of precipitation in a normal year; the driest is June with 0.25 in.
What plant hardiness zone is Holbrook in?
The USDA's 2023 map puts Holbrook in zone 7a in ZIP code 86025, the nearest ZIP area.
How late can frost come in Holbrook?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 7. Waiting until May 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Petrified Forest National Park, AZ17 miles from this station, 55.6°F a year
- Painted Desert National Park, AZ24 miles from this station, 54.2°F a year
- Snowflake, AZ28 miles from this station, 53.5°F a year
- Winslow, AZ33 miles from this station, 56.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made