Roosevelt, Arizona climate: Normal weather by month, frost dates and records
Roosevelt's normal year runs from 40°F December nights to 104°F July afternoons, with 15.9 inches of precipitation and less than an inch of snow (0.2 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.2°C, December lows of 5°C, July highs of 40°C, 404 mm of precipitation a year.
- NOAA stationRoosevelt (1 mi S)
- Station IDUSC00027281
- Location33.65°N 111.11°W
- Elevation2,605 ft (794 m)
- Population (census place)0
On October 23, the normal high in Roosevelt is 82°F and the normal low 57°F, and the chance of measurable rain or snow is 10%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Roosevelt.
- Jan 61° 40°
- Feb 66° 43°
- Mar 74° 48°
- Apr 82° 54°
- May 91° 63°
- Jun 102° 72°
- Jul 104° 78°
- Aug 102° 77°
- Sep 96° 71°
- Oct 85° 59°
- Nov 71° 48°
- Dec 60° 40°
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 Roosevelt each month?
July is the warmest month, with normal highs of 104°F; December the coldest, with normal lows of 40°F. The most precipitation falls in January (2.21 in), the least in June (0.13 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 61°F | 40°F | 50.3°F | 2.21 | 5 | <1 | 3 | 10 h 10 min |
| February | 66°F | 43°F | 54.1°F | 1.70 | 5 | <1 | 1 | 11 h |
| March | 74°F | 48°F | 60.6°F | 1.72 | 4 | <1 | <1 | 12 h |
| April | 82°F | 54°F | 68.1°F | 0.58 | 2 | 5 | <1 | 13 h |
| May | 91°F | 63°F | 77.1°F | 0.33 | 2 | 19 | <1 | 13 h 50 min |
| June | 102°F | 72°F | 87.2°F | 0.13 | 1 | 29 | <1 | 14 h 20 min |
| July | 104°F | 78°F | 90.9°F | 1.57 | 5 | 31 | <1 | 14 h 10 min |
| August | 102°F | 77°F | 89.2°F | 2.10 | 6 | 30 | <1 | 13 h 30 min |
| September | 96°F | 71°F | 83.4°F | 1.42 | 4 | 26 | <1 | 12 h 30 min |
| October | 85°F | 59°F | 72.0°F | 0.98 | 3 | 9 | <1 | 11 h 20 min |
| November | 71°F | 48°F | 59.5°F | 1.08 | 3 | <1 | 1 | 10 h 30 min |
| December | 60°F | 40°F | 50.1°F | 2.09 | 5 | <1 | 4 | 10 h |
| Year (annual) | 83°F | 58°F | 70.2°F | 15.91 | 45 | 150 | 9 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 4°C | 10.2°C | 56 mm |
| February | 19°C | 6°C | 12.3°C | 43 mm |
| March | 23°C | 9°C | 15.9°C | 44 mm |
| April | 28°C | 12°C | 20.1°C | 15 mm |
| May | 33°C | 17°C | 25.1°C | 8 mm |
| June | 39°C | 22°C | 30.7°C | 3 mm |
| July | 40°C | 26°C | 32.7°C | 40 mm |
| August | 39°C | 25°C | 31.8°C | 53 mm |
| September | 36°C | 22°C | 28.6°C | 36 mm |
| October | 29°C | 15°C | 22.2°C | 25 mm |
| November | 22°C | 9°C | 15.3°C | 27 mm |
| December | 16°C | 5°C | 10.1°C | 53 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00027281; 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 Roosevelt?
Normal highs sit between 65°F and 85°F in February, March, April, October and November. 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 USC00027281.
When is the last frost in Roosevelt?
In Roosevelt, the last spring frost (32°F) comes after January 17 in half of years and after February 18 in one year in ten; the first autumn frost comes before December 25 in half of years and before December 5 in one year in ten. A night at 32°F or colder comes at all in 82% 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 171 year in 10 after February 18; 9 in 10 after December 21
- First autumn frost, half of years before
- December 251 year in 10 before December 5; 9 in 10 before January 27
NOAA puts the median frost-free season at 342 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after January 14 in half of springs and before January 10 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Roosevelt in zone 9b in ZIP code 85545, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Roosevelt's NOAA station is in zone 9b: the coldest night of a typical year reaches 29°F (18 complete years).
Frost dates for every NOAA station in Arizona · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00027281; 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.
How hot and how cold does it get in Roosevelt?
In a normal year in Roosevelt, 150 days a year reach 90°F (81 of them 100°F or more), 9 nights fall to 32°F or colder and 45 days bring measurable precipitation.
- Days at 90°F or more
- 150a normal year
- Days at 100°F or more
- 81a normal year
- Nights at 32°F or colder
- 9a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 45a normal year
The highest temperature in this station's record (since 1905) is 117°F, on June 26, 1990; the lowest is 18°F, on December 18, 1908.
The wettest calendar year on that record is 1941, with 25.84 in; the snowiest season is 1938–39, with 4.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00027281; records: ACIS (NOAA Regional Climate Centers), station USC00027281. Records use complete months only; a month missing more than three days is left out.
How sunny is Roosevelt?
Over a year 91% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Roosevelt, 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 Roosevelt need?
A normal year in Roosevelt brings 1,627 heating degree days, 70% fewer than the median U.S. place (5,373), and 3,559 cooling degree days, 3.9 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,545 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 456 | 0 |
| February | 304 | 0 |
| March | 160 | 23 |
| April | 37 | 131 |
| May | 4 | 379 |
| June | 0 | 666 |
| July | 0 | 801 |
| August | 0 | 750 |
| September | 0 | 554 |
| October | 17 | 233 |
| November | 187 | 22 |
| December | 462 | 0 |
| Year (annual) | 1,627 | 3,559 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00027281. 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 Roosevelt's climate compare?
Roosevelt is warmer than 65 of the other 96 places with their own NOAA record in Arizona, and wetter than 69. Across the 7,247 U.S. stations with normals, its annual mean of 70.2°F is warmer than 95%.
In the Köppen classification computed from these normals, Roosevelt is BSh: hot 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 Roosevelt share this climate record?
2 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.
- Roosevelt Estates, AZ654 people · 7 mi E
- Rock House, AZ8 people · 10 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 Roosevelt's climate
What is the coldest month in Roosevelt?
December, with a normal high of 60°F and a normal low of 40°F. The warmest is July (104°F by day, 78°F at night).
Does it snow in Roosevelt?
Rarely: NOAA's normal is 0.2 inch a year.
What is the rainiest month in Roosevelt?
January, with 2.21 in of precipitation in a normal year; the driest is June with 0.13 in.
What plant hardiness zone is Roosevelt in?
The USDA's 2023 map puts Roosevelt in zone 9b in ZIP code 85545, the nearest ZIP area. By the same method at Roosevelt's NOAA station, the coldest night of a typical year reaches 29°F (18 years, 1991-2020): zone 9b.
How late can frost come in Roosevelt?
In half of years the last 32°F night comes after January 17; in one year in ten it comes after February 18. Waiting until February 18 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Punkin Center, AZ18 miles from this station, 66.3°F a year
- Mormon Flat, AZ21 miles from this station, 73.2°F a year
- Miami, AZ22 miles from this station, 66.8°F a year
- Superior, AZ24 miles from this station, 70.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made