Parker, Arizona climate: Normal weather by month, frost dates and records
Parker's normal year runs from 40°F December nights to 108°F July afternoons, with 4.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 23.4°C, December lows of 5°C, July highs of 42°C, 116 mm of precipitation a year.
- NOAA stationParker
- Station IDUSC00026250
- Location34.15°N 114.29°W
- Elevation420 ft (128 m)
- Population3,456
On October 23, the normal high in Parker is 87°F and the normal low 58°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 Parker.
- Jan 69° 42°
- Feb 73° 45°
- Mar 80° 50°
- Apr 87° 56°
- May 96° 64°
- Jun 105° 74°
- Jul 108° 81°
- Aug 108° 81°
- Sep 103° 74°
- Oct 90° 61°
- Nov 78° 49°
- Dec 67° 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 Parker each month?
July is the warmest month, with normal highs of 108°F; December the coldest, with normal lows of 40°F. The most precipitation falls in January (0.85 in), the least in June (0.03 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 69°F | 42°F | 55.1°F | 0.85 | 3 | <1 | 2 | 10 h 10 min |
| February | 73°F | 45°F | 58.8°F | 0.73 | 3 | <1 | <1 | 11 h |
| March | 80°F | 50°F | 64.9°F | 0.55 | 2 | 4 | <1 | 11 h 50 min |
| April | 87°F | 56°F | 71.5°F | 0.16 | 1 | 13 | <1 | 13 h |
| May | 96°F | 64°F | 80.0°F | 0.07 | <1 | 25 | <1 | 13 h 50 min |
| June | 105°F | 74°F | 89.5°F | 0.03 | <1 | 30 | <1 | 14 h 30 min |
| July | 108°F | 81°F | 94.6°F | 0.18 | 1 | 31 | <1 | 14 h 10 min |
| August | 108°F | 81°F | 94.4°F | 0.43 | 1 | 31 | <1 | 13 h 30 min |
| September | 103°F | 74°F | 88.4°F | 0.41 | 1 | 29 | <1 | 12 h 30 min |
| October | 90°F | 61°F | 75.6°F | 0.42 | 1 | 20 | <1 | 11 h 20 min |
| November | 78°F | 49°F | 63.4°F | 0.23 | 1 | 3 | <1 | 10 h 20 min |
| December | 67°F | 40°F | 53.5°F | 0.51 | 2 | <1 | 2 | 9 h 50 min |
| Year (annual) | 89°F | 60°F | 74.1°F | 4.57 | 17 | 185 | 4 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 20°C | 5°C | 12.8°C | 22 mm |
| February | 23°C | 7°C | 14.9°C | 19 mm |
| March | 27°C | 10°C | 18.3°C | 14 mm |
| April | 30°C | 14°C | 21.9°C | 4 mm |
| May | 35°C | 18°C | 26.7°C | 2 mm |
| June | 41°C | 23°C | 31.9°C | 1 mm |
| July | 42°C | 27°C | 34.8°C | 5 mm |
| August | 42°C | 27°C | 34.7°C | 11 mm |
| September | 40°C | 23°C | 31.3°C | 10 mm |
| October | 32°C | 16°C | 24.2°C | 11 mm |
| November | 25°C | 10°C | 17.4°C | 6 mm |
| December | 19°C | 5°C | 11.9°C | 13 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00026250; 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 Parker?
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 USC00026250.
When is the last frost in Parker?
In Parker, the last spring frost (32°F) comes after January 12 in half of years and after February 15 in one year in ten; the first autumn frost comes before December 19 in half of years and before December 4 in one year in ten. A night at 32°F or colder comes at all in 88% 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 121 year in 10 after February 15; 9 in 10 after December 20
- First autumn frost, half of years before
- December 191 year in 10 before December 4; 9 in 10 before January 10
NOAA puts the median frost-free season at 338 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after January 1 in half of springs and before December 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Parker in zone 9b in ZIP code 85344, 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 USC00026250; 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 Parker?
In a normal year in Parker, 185 days a year reach 90°F (126 of them 100°F or more), 4 nights fall to 32°F or colder and 17 days bring measurable precipitation.
- Days at 90°F or more
- 185a normal year
- Days at 100°F or more
- 126a normal year
- Nights at 32°F or colder
- 4a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 17a normal year
The highest temperature in this station's record (since 1893) is 127°F, on July 7, 1905; the lowest is 9°F, on December 31, 1911.
The wettest calendar year on that record is 1978, with 12.60 in; the snowiest season is 1932–33, with 3.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00026250; records: ACIS (NOAA Regional Climate Centers), station USC00026250. Records use complete months only; a month missing more than three days is left out.
How sunny is Parker?
Over a year 93% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Parker, 5.8 kWh per square metre a day. June is the sunniest month (97%) and December the cloudiest (86%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 87% | 3.4 |
| February | 88% | 4.4 |
| March | 91% | 5.8 |
| April | 93% | 7.2 |
| May | 95% | 8.1 |
| June | 97% | 8.6 |
| July | 93% | 7.7 |
| August | 94% | 7.2 |
| September | 95% | 6.3 |
| October | 94% | 4.9 |
| November | 91% | 3.7 |
| December | 86% | 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 Parker need?
A normal year in Parker brings 1,049 heating degree days, 80% fewer than the median U.S. place (5,373), and 4,416 cooling degree days, 4.9 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 8,880 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 308 | 1 |
| February | 181 | 9 |
| March | 74 | 71 |
| April | 15 | 209 |
| May | 1 | 465 |
| June | 0 | 735 |
| July | 0 | 916 |
| August | 0 | 911 |
| September | 0 | 704 |
| October | 6 | 335 |
| November | 108 | 60 |
| December | 355 | 1 |
| Year (annual) | 1,049 | 4,416 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00026250. 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 Parker's climate compare?
Parker is warmer than 90 of the other 96 places with their own NOAA record in Arizona, and wetter than 5. Across the 7,247 U.S. stations with normals, its annual mean of 74.1°F is warmer than 98%.
In the Köppen classification computed from these normals, Parker 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 Parker 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.
- Big River, CA1,025 people · 4 mi W
- Poston, AZ168 people · 13 mi SW
- Bluewater, CA144 people · 2 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 Parker's climate
What is the coldest month in Parker?
December, with a normal high of 67°F and a normal low of 40°F. The warmest is July (108°F by day, 81°F at night).
Does it snow in Parker?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Parker?
January, with 0.85 in of precipitation in a normal year; the driest is June with 0.03 in.
What plant hardiness zone is Parker in?
The USDA's 2023 map puts Parker in zone 9b in ZIP code 85344, the nearest ZIP area.
How late can frost come in Parker?
In half of years the last 32°F night comes after January 12; in one year in ten it comes after February 15. Waiting until February 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Parker Resrvoir, CA12 miles from this station, 74.2°F a year
- Bouse, AZ21 miles from this station, 71.3°F a year
- Lake Havasu City, AZ24 miles from this station, 74.2°F a year
- Quartzsite, AZ34 miles from this station, 73.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made