Bullhead City, Arizona climate: Normal weather by month, frost dates and records
Bullhead City's normal year runs from 44°F December nights to 111°F July afternoons, with 5.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 23.4°C, December lows of 7°C, July highs of 44°C, 137 mm of precipitation a year.
- NOAA stationBullhead City
- Station IDUSC00021050
- Location35.14°N 114.57°W
- Elevation531 ft (162 m)
- Population43,266
On October 23, the normal high in Bullhead City is 86°F and the normal low 59°F, and the chance of measurable rain or snow is 4%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bullhead City.
- Jan 65° 45°
- Feb 70° 47°
- Mar 79° 51°
- Apr 87° 57°
- May 96° 66°
- Jun 107° 73°
- Jul 111° 81°
- Aug 109° 81°
- Sep 103° 73°
- Oct 89° 61°
- Nov 74° 51°
- Dec 64° 44°
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 Bullhead City each month?
July is the warmest month, with normal highs of 111°F; December the coldest, with normal lows of 44°F. The most precipitation falls in February (1.15 in), the least in June (0.01 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 65°F | 45°F | 54.9°F | 1.01 | 3 | <1 | 1 | 10 h |
| February | 70°F | 47°F | 58.2°F | 1.15 | 3 | <1 | <1 | 10 h 50 min |
| March | 79°F | 51°F | 64.6°F | 0.76 | 2 | 4 | <1 | 11 h 50 min |
| April | 87°F | 57°F | 72.0°F | 0.14 | 1 | 15 | <1 | 13 h |
| May | 96°F | 66°F | 81.1°F | 0.08 | <1 | 26 | <1 | 14 h |
| June | 107°F | 73°F | 90.0°F | 0.01 | <1 | 30 | <1 | 14 h 30 min |
| July | 111°F | 81°F | 95.9°F | 0.23 | 1 | 31 | <1 | 14 h 20 min |
| August | 109°F | 81°F | 95.1°F | 0.48 | 1 | 31 | <1 | 13 h 30 min |
| September | 103°F | 73°F | 87.6°F | 0.18 | 1 | 29 | <1 | 12 h 30 min |
| October | 89°F | 61°F | 75.3°F | 0.50 | 1 | 19 | <1 | 11 h 20 min |
| November | 74°F | 51°F | 62.4°F | 0.39 | 1 | 1 | <1 | 10 h 20 min |
| December | 64°F | 44°F | 53.7°F | 0.47 | 2 | <1 | 1 | 9 h 50 min |
| Year (annual) | 88°F | 61°F | 74.2°F | 5.40 | 18 | 186 | 2 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 7°C | 12.7°C | 26 mm |
| February | 21°C | 8°C | 14.6°C | 29 mm |
| March | 26°C | 10°C | 18.1°C | 19 mm |
| April | 31°C | 14°C | 22.2°C | 4 mm |
| May | 36°C | 19°C | 27.3°C | 2 mm |
| June | 42°C | 23°C | 32.2°C | 0 mm |
| July | 44°C | 27°C | 35.5°C | 6 mm |
| August | 43°C | 27°C | 35.1°C | 12 mm |
| September | 39°C | 23°C | 30.9°C | 5 mm |
| October | 32°C | 16°C | 24.1°C | 13 mm |
| November | 23°C | 10°C | 16.9°C | 10 mm |
| December | 18°C | 7°C | 12.1°C | 12 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00021050; 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 Bullhead City?
Normal highs sit between 65°F and 85°F in January, February, March and November. Of those, November has the fewest days with rain (1).
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 USC00021050.
When is the last frost in Bullhead City?
In Bullhead City, the last spring frost (32°F) comes after January 4 in half of years and after February 5 in one year in ten; the first autumn frost comes before December 23 in half of years and before December 1 in one year in ten. A night at 32°F or colder comes at all in 67% of years here (NOAA).
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- January 41 year in 10 after February 5; 9 in 10 after December 12
- First autumn frost, half of years before
- December 231 year in 10 before December 1; 9 in 10 before January 23
NOAA puts the median frost-free season at 356 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after December 26 in half of springs and before December 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bullhead City in zones 9b to 10a across its 2 ZIP code areas (9b in 86429, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Bullhead City's NOAA station is in zone 10a: the coldest night of a typical year reaches 32°F (15 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 USC00021050; 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.
What hardiness zone is each Bullhead City ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Bullhead City's 2 ZIP code areas run from zone 9b to 10a: 1 in 10a and 1 in 9b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Bullhead City?
In a normal year in Bullhead City, 186 days a year reach 90°F (135 of them 100°F or more), 2 nights fall to 32°F or colder and 18 days bring measurable precipitation.
- Days at 90°F or more
- 186a normal year
- Days at 100°F or more
- 135a normal year
- Nights at 32°F or colder
- 2a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 18a normal year
The highest temperature in this station's record (since 1977) is 126°F, on June 28, 1984; the lowest is 24°F, on December 24, 1990.
The wettest calendar year on that record is 1992, with 11.26 in.
Source: NOAA NCEI 1991-2020 annual normals, station USC00021050; records: ACIS (NOAA Regional Climate Centers), station USC00021050. Records use complete months only; a month missing more than three days is left out.
How sunny is Bullhead City?
Over a year 91% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bullhead City, 5.7 kWh per square metre a day. June is the sunniest month (96%) and December the cloudiest (83%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 86% | 3.2 |
| February | 86% | 4.2 |
| March | 89% | 5.7 |
| April | 91% | 7.1 |
| May | 94% | 8.0 |
| June | 96% | 8.6 |
| July | 91% | 7.6 |
| August | 93% | 7.1 |
| September | 95% | 6.2 |
| October | 92% | 4.8 |
| November | 90% | 3.6 |
| December | 83% | 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 much heating and cooling does Bullhead City need?
A normal year in Bullhead City brings 1,100 heating degree days, 80% fewer than the median U.S. place (5,373), and 4,503 cooling degree days, 5.0 times the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 8,922 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 314 | 1 |
| February | 199 | 9 |
| March | 85 | 73 |
| April | 14 | 226 |
| May | 1 | 498 |
| June | 0 | 750 |
| July | 0 | 958 |
| August | 0 | 931 |
| September | 0 | 680 |
| October | 6 | 326 |
| November | 131 | 51 |
| December | 350 | 1 |
| Year (annual) | 1,100 | 4,503 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00021050. 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.
Has Bullhead City been warmer than normal lately?
2025 averaged 76.2°F, 2.0°F above the 1991-2020 normal of 74.2°F. 3 of the 3 complete years since 2023 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 74.4°F | +0.2°F | 5.64 |
| 2024 | 76.0°F | +1.8°F | 3.39 |
| 2025 | 76.2°F | +2.0°F | 8.09 |
Source: observed years: ACIS, station USC00021050. A year counts only with all twelve months complete.
How does Bullhead City's climate compare?
Bullhead City is warmer than 91 of the other 96 places with their own NOAA record in Arizona, and wetter than 7. Across the 7,247 U.S. stations with normals, its annual mean of 74.2°F is warmer than 98%.
In the Köppen classification computed from these normals, Bullhead City is BWh: hot 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 Bullhead City share this climate record?
Cal-Nev-Ari has no NOAA station with 1991-2020 normals of its 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.
- Cal-Nev-Ari, NV230 people · 21 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 Bullhead City's climate
What is the coldest month in Bullhead City?
December, with a normal high of 64°F and a normal low of 44°F. The warmest is July (111°F by day, 81°F at night).
What is the rainiest month in Bullhead City?
February, with 1.15 in of precipitation in a normal year; the driest is June with 0.01 in.
What plant hardiness zone is Bullhead City in?
The USDA's 2023 map puts Bullhead City in zones 9b to 10a across its 2 ZIP code areas (9b in 86429, the largest). By the same method at Bullhead City's NOAA station, the coldest night of a typical year reaches 32°F (15 years, 1991-2020): zone 10a.
How late can frost come in Bullhead City?
In half of years the last 32°F night comes after January 4; in one year in ten it comes after February 5. Waiting until February 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Bullhead City in OctoberThis month day by day, its records and recent years
- Arizona climateThe statewide normals and every place in the state
- Laughlin, NV2 miles from this station, 74.1°F a year
- Needles, CA26 miles from this station, 76.2°F a year
- Searchlight, NV30 miles from this station, 64.0°F a year
- Yucca, AZ30 miles from this station, 68.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made