Bisbee, Arizona climate: Normal weather by month, frost dates and records
Bisbee's normal year runs from 32°F January nights to 87°F July afternoons, with 17.1 inches of precipitation and 3 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.4°C, January lows of 0°C, July highs of 31°C, 435 mm of precipitation a year.
- NOAA stationBisbee (1 mi WNW)
- Station IDUSC00020775
- Location31.45°N 109.93°W
- Elevation5,560 ft (1,695 m)
- Population4,957
On October 23, the normal high in Bisbee is 73°F and the normal low 46°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 Bisbee.
- Jan 56° 32°
- Feb 60° 35°
- Mar 67° 38°
- Apr 73° 44°
- May 81° 51°
- Jun 89° 60°
- Jul 87° 63°
- Aug 85° 61°
- Sep 82° 57°
- Oct 75° 48°
- Nov 64° 39°
- Dec 56° 33°
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 Bisbee each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 32°F. The most precipitation falls in August (4.25 in), the least in April (0.19 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 56°F | 32°F | 44.0°F | 1.31 | 1.4 | 5 | <1 | 18 | 10 h 20 min |
| February | 60°F | 35°F | 47.2°F | 1.14 | 0.4 | 5 | <1 | 12 | 11 h |
| March | 67°F | 38°F | 52.6°F | 0.88 | 0.6 | 3 | <1 | 7 | 12 h |
| April | 73°F | 44°F | 58.7°F | 0.19 | 0.1 | 1 | <1 | 2 | 12 h 50 min |
| May | 81°F | 51°F | 66.0°F | 0.28 | 0.0 | 1 | 2 | <1 | 13 h 40 min |
| June | 89°F | 60°F | 74.7°F | 0.48 | 0.0 | 3 | 17 | <1 | 14 h 10 min |
| July | 87°F | 63°F | 75.3°F | 3.81 | 0.0 | 14 | 12 | <1 | 14 h |
| August | 85°F | 61°F | 72.9°F | 4.25 | 0.0 | 13 | 5 | <1 | 13 h 20 min |
| September | 82°F | 57°F | 69.0°F | 1.98 | 0.0 | 7 | 1 | <1 | 12 h 20 min |
| October | 75°F | 48°F | 61.3°F | 0.98 | 0.0 | 4 | <1 | 1 | 11 h 30 min |
| November | 64°F | 39°F | 51.4°F | 0.74 | 0.2 | 3 | <1 | 7 | 10 h 40 min |
| December | 56°F | 33°F | 44.4°F | 1.07 | 0.6 | 4 | <1 | 17 | 10 h 10 min |
| Year (annual) | 73°F | 47°F | 59.8°F | 17.11 | 3.3 | 60 | 36 | 63 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 13°C | 0°C | 6.7°C | 33 mm | 4 cm |
| February | 15°C | 2°C | 8.4°C | 29 mm | 1 cm |
| March | 19°C | 3°C | 11.4°C | 22 mm | 2 cm |
| April | 23°C | 7°C | 14.8°C | 5 mm | 0 cm |
| May | 27°C | 11°C | 18.9°C | 7 mm | 0 cm |
| June | 32°C | 16°C | 23.7°C | 12 mm | 0 cm |
| July | 31°C | 17°C | 24.1°C | 97 mm | 0 cm |
| August | 29°C | 16°C | 22.7°C | 108 mm | 0 cm |
| September | 28°C | 14°C | 20.6°C | 50 mm | 0 cm |
| October | 24°C | 9°C | 16.3°C | 25 mm | 0 cm |
| November | 18°C | 4°C | 10.8°C | 19 mm | 1 cm |
| December | 13°C | 0°C | 6.9°C | 27 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00020775; 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 Bisbee?
Normal highs sit between 65°F and 85°F in March, April, May, August, September and October. Of those, May 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 USC00020775.
When is the last frost in Bisbee?
In Bisbee, the last spring frost (32°F) comes after April 1 in half of years and after April 20 in one year in ten; the first autumn frost comes before November 10 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 11 year in 10 after April 20; 9 in 10 after March 13
- First autumn frost, half of years before
- November 101 year in 10 before October 25; 9 in 10 before November 28
NOAA puts the median frost-free season at 222 days, and the season without a hard freeze (28°F) at 254 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bisbee in zone 8b in ZIP code 85603, 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 USC00020775; 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 Bisbee?
In a normal year in Bisbee, 36 days a year reach 90°F, 63 nights fall to 32°F or colder and 60 days bring measurable precipitation.
- Days at 90°F or more
- 36a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 63a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 60a normal year
- Days with 1 inch of snow or more
- 1a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00020775.
How sunny is Bisbee?
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bisbee, 5.8 kWh per square metre a day. May is the sunniest month (94%) and July the cloudiest (82%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 87% | 3.8 |
| February | 87% | 4.7 |
| March | 90% | 6.1 |
| April | 93% | 7.5 |
| May | 94% | 8.2 |
| June | 92% | 8.1 |
| July | 82% | 6.7 |
| August | 84% | 6.4 |
| 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 much heating and cooling does Bisbee need?
A normal year in Bisbee brings 2,991 heating degree days, 44% fewer than the median U.S. place (5,373), and 1,116 cooling degree days, 23% 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 4,228 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 651 | 0 |
| February | 498 | 0 |
| March | 386 | 0 |
| April | 200 | 11 |
| May | 60 | 92 |
| June | 2 | 292 |
| July | 0 | 319 |
| August | 0 | 247 |
| September | 11 | 132 |
| October | 136 | 21 |
| November | 408 | 0 |
| December | 639 | 0 |
| Year (annual) | 2,991 | 1,116 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00020775. 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 Bisbee's climate compare?
Bisbee is warmer than 27 of the other 96 places with their own NOAA record in Arizona, and wetter than 72. Across the 7,247 U.S. stations with normals, its annual mean of 59.8°F is warmer than 74%.
In the Köppen classification computed from these normals, Bisbee is BSk: cold semi-arid steppe. 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 Bisbee share this climate record?
Naco 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.
- Naco, AZ1,176 people · 7 mi S
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 Bisbee's climate
What is the coldest month in Bisbee?
January, with a normal high of 56°F and a normal low of 32°F. The warmest is July (87°F by day, 63°F at night).
Does it snow in Bisbee?
Yes: 3 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (1.4 inches).
What is the rainiest month in Bisbee?
August, with 4.25 in of precipitation in a normal year; the driest is April with 0.19 in.
What plant hardiness zone is Bisbee in?
The USDA's 2023 map puts Bisbee in zone 8b in ZIP code 85603, the nearest ZIP area.
How late can frost come in Bisbee?
In half of years the last 32°F night comes after April 1; in one year in ten it comes after April 20. Waiting until April 20 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- McNeal, AZ19 miles from this station, 64.1°F a year
- Douglas, AZ19 miles from this station, 62.3°F a year
- Tombstone, AZ20 miles from this station, 65.7°F a year
- Coronado National Memorial, AZ21 miles from this station, 61.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made