Florence, Arizona climate: Normal weather by month, frost dates and records
Florence's normal year runs from 41°F December nights to 105°F July afternoons, with 8.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 22.4°C, December lows of 5°C, July highs of 41°C, 219 mm of precipitation a year.
- NOAA stationFlorence
- Station IDUSC00023027
- Location33.04°N 111.39°W
- Elevation1,400 ft (427 m)
- Population24,891
On October 23, the normal high in Florence is 86°F and the normal low 57°F, and the chance of measurable rain or snow is 5%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Florence.
- Jan 68° 42°
- Feb 71° 44°
- Mar 79° 49°
- Apr 86° 53°
- May 94° 61°
- Jun 103° 70°
- Jul 105° 78°
- Aug 103° 78°
- Sep 99° 72°
- Oct 89° 60°
- Nov 77° 48°
- Dec 67° 41°
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 Florence each month?
July is the warmest month, with normal highs of 105°F; December the coldest, with normal lows of 41°F. The most precipitation falls in January (1.41 in), the least in June (0.04 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 68°F | 42°F | 55.0°F | 1.41 | 3 | <1 | 3 | 10 h 10 min |
| February | 71°F | 44°F | 57.4°F | 0.94 | 4 | <1 | 1 | 11 h |
| March | 79°F | 49°F | 63.8°F | 1.22 | 3 | 1 | 1 | 12 h |
| April | 86°F | 53°F | 69.6°F | 0.25 | 1 | 9 | <1 | 13 h |
| May | 94°F | 61°F | 77.5°F | 0.36 | 1 | 23 | <1 | 13 h 50 min |
| June | 103°F | 70°F | 86.7°F | 0.04 | <1 | 29 | <1 | 14 h 20 min |
| July | 105°F | 78°F | 91.6°F | 1.18 | 2 | 31 | <1 | 14 h 10 min |
| August | 103°F | 78°F | 90.4°F | 1.08 | 3 | 30 | <1 | 13 h 20 min |
| September | 99°F | 72°F | 85.4°F | 0.28 | 1 | 28 | <1 | 12 h 30 min |
| October | 89°F | 60°F | 74.3°F | 0.45 | 1 | 16 | <1 | 11 h 20 min |
| November | 77°F | 48°F | 62.7°F | 0.45 | 1 | 1 | 1 | 10 h 30 min |
| December | 67°F | 41°F | 54.1°F | 0.98 | 2 | <1 | 4 | 10 h |
| Year (annual) | 87°F | 58°F | 72.4°F | 8.64 | 24 | 169 | 10 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 20°C | 6°C | 12.8°C | 36 mm |
| February | 22°C | 7°C | 14.1°C | 24 mm |
| March | 26°C | 10°C | 17.7°C | 31 mm |
| April | 30°C | 12°C | 20.9°C | 6 mm |
| May | 35°C | 16°C | 25.3°C | 9 mm |
| June | 39°C | 21°C | 30.4°C | 1 mm |
| July | 41°C | 26°C | 33.1°C | 30 mm |
| August | 40°C | 25°C | 32.4°C | 27 mm |
| September | 37°C | 22°C | 29.7°C | 7 mm |
| October | 32°C | 15°C | 23.5°C | 11 mm |
| November | 25°C | 9°C | 17.1°C | 11 mm |
| December | 19°C | 5°C | 12.3°C | 25 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00023027; 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 Florence?
Normal highs sit between 65°F and 85°F in January, February, March, November and December. 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 USC00023027.
When is the last frost in Florence?
In Florence, the last spring frost (32°F) comes after January 30 in half of years and after February 24 in one year in ten; the first autumn frost comes before December 12 in half of years and before November 22 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
- January 301 year in 10 after February 24; 9 in 10 after December 27
- First autumn frost, half of years before
- December 121 year in 10 before November 22; 9 in 10 before January 12
NOAA puts the median frost-free season at 319 days, and the season without a hard freeze (28°F) at 362 days.
A hard freeze (28°F) comes after January 8 in half of springs and before December 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Florence in zone 9a in ZIP code 85191, 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 USC00023027; 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 Florence?
In a normal year in Florence, 169 days a year reach 90°F (92 of them 100°F or more), 10 nights fall to 32°F or colder and 24 days bring measurable precipitation.
- Days at 90°F or more
- 169a normal year
- Days at 100°F or more
- 92a normal year
- Nights at 32°F or colder
- 10a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 24a normal year
The highest temperature in this station's record (since 1892) is 119°F, on July 5, 1983; the lowest is 11°F, on January 6, 1913.
The wettest calendar year on that record is 1978, with 20.01 in; the snowiest season is 1932–33, with 3.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00023027; records: ACIS (NOAA Regional Climate Centers), station USC00023027. Records use complete months only; a month missing more than three days is left out.
How sunny is Florence?
Over a year 91% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Florence, 5.8 kWh per square metre a day. June is the sunniest month (97%) and December the cloudiest (84%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 85% | 3.4 |
| February | 84% | 4.3 |
| March | 89% | 5.8 |
| April | 93% | 7.3 |
| May | 95% | 8.2 |
| June | 97% | 8.5 |
| July | 91% | 7.4 |
| August | 91% | 6.8 |
| September | 93% | 6.1 |
| October | 93% | 5.0 |
| November | 89% | 3.8 |
| December | 84% | 3.0 |
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 Florence need?
A normal year in Florence brings 1,157 heating degree days, 78% fewer than the median U.S. place (5,373), and 3,877 cooling degree days, 4.3 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 8,251 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 315 | 3 |
| February | 219 | 5 |
| March | 103 | 66 |
| April | 31 | 169 |
| May | 3 | 391 |
| June | 0 | 651 |
| July | 0 | 824 |
| August | 0 | 789 |
| September | 0 | 613 |
| October | 15 | 303 |
| November | 129 | 60 |
| December | 341 | 2 |
| Year (annual) | 1,157 | 3,877 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00023027. 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 Florence's climate compare?
Florence is warmer than 81 of the other 96 places with their own NOAA record in Arizona, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 72.4°F is warmer than 97%.
In the Köppen classification computed from these normals, Florence 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 Florence share this climate record?
Cactus Forest 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.
- Cactus Forest, AZ509 people · 7 mi SE
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 Florence's climate
What is the coldest month in Florence?
December, with a normal high of 67°F and a normal low of 41°F. The warmest is July (105°F by day, 78°F at night).
Does it snow in Florence?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Florence?
January, with 1.41 in of precipitation in a normal year; the driest is June with 0.04 in.
What plant hardiness zone is Florence in?
The USDA's 2023 map puts Florence in zone 9a in ZIP code 85191, the nearest ZIP area.
How late can frost come in Florence?
In half of years the last 32°F night comes after January 30; in one year in ten it comes after February 24. Waiting until February 24 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Coolidge, AZ9 miles from this station, 71.3°F a year
- Eloy, AZ19 miles from this station, 70.9°F a year
- Chandler, AZ21 miles from this station, 71.4°F a year
- Robson Ranch, AZ21 miles from this station, 71.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made