Climateby Month

Goodyear, AZ climate by month

NOAA 1991-2020 normals · 965 ft elevation · also covers Avondale

Goodyear has very hot summers and cool winters. Highs peak at 105°F in July and fall to 64°F in December. Wet days are spread through the year, from about 0 to 3 a month. Snow is rare. By our comfort score the best months are January, February and November.

Warmest month
105°F
July normal high
Coldest month
40°F
December normal low
Wet days a year
23
8.4 in of precipitation
Muggy days a year
16
dew point 65°F or higher

How warm is Goodyear?

Normal highs range from 64°F in December to 105°F in July.

40°60°80°100°120° January: normal high 65°F (18°C), low 41°F (5°C) February: normal high 69°F (21°C), low 44°F (7°C) March: normal high 77°F (25°C), low 49°F (9°C) April: normal high 84°F (29°C), low 55°F (13°C) May: normal high 93°F (34°C), low 64°F (18°C) June: normal high 102°F (39°C), low 72°F (22°C) July: normal high 105°F (41°C), low 80°F (27°C) 105° 80° August: normal high 104°F (40°C), low 79°F (26°C) September: normal high 98°F (37°C), low 73°F (23°C) October: normal high 87°F (31°C), low 60°F (16°C) November: normal high 74°F (23°C), low 48°F (9°C) December: normal high 64°F (18°C), low 40°F (4°C) 64° 40° JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Goodyear?

February has the most wet days (about 3); the year brings about 8.4 in of precipitation.

January: 3 wet days February: 3 wet days 3 March: 3 wet days April: 1 wet days May: 1 wet days June: 0 wet days 0 July: 3 wet days August: 3 wet days September: 2 wet days October: 1 wet days November: 2 wet days December: 3 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is Goodyear?

Muggy days peak in August, at about 7 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 0 muggy days June: 0 muggy days July: 6 muggy days August: 7 muggy days 7 September: 3 muggy days October: 0 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Luke AFB Airport, 7.9 mi N of the city center.

How much daylight?

Daylight ranges from about 10.0 hours in December to 14.3 hours in June.

January: 10.2 hours of daylight February: 11.0 hours of daylight March: 12.0 hours of daylight April: 13.0 hours of daylight May: 13.9 hours of daylight June: 14.3 hours of daylight 14.3 July: 14.1 hours of daylight August: 13.4 hours of daylight September: 12.4 hours of daylight October: 11.3 hours of daylight November: 10.4 hours of daylight December: 10.0 hours of daylight 10.0 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Goodyear, 1991-2020
MonthHighLowPrecip.Wet daysMuggy daysDaylight
January 65°F41°F 1.3 in3 0 10.2 h
February 69°F44°F 1.2 in3 0 11.0 h
March 77°F49°F 0.9 in3 0 12.0 h
April 84°F55°F 0.2 in1 0 13.0 h
May 93°F64°F 0.1 in1 0 13.9 h
June 102°F72°F 0.06 in0 0 14.3 h
July 105°F80°F 0.9 in3 6 14.1 h
August 104°F79°F 1.1 in3 7 13.4 h
September 98°F73°F 0.7 in2 3 12.4 h
October 87°F60°F 0.6 in1 0 11.3 h
November 74°F48°F 0.7 in2 0 10.4 h
December 64°F40°F 0.8 in3 0 10.0 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Goodyear

By our comfort score, the best months are January, February and November.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 722030
Feb 751920
Mar 691522
Apr 556111
May 431025
Jun 390030
Jul 360231
Aug 340231
Sep 330129
Oct 443116
Nov 721911
Dec 691820

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Goodyear

The last spring frost typically comes around Jan 7, and the first fall frost around Dec 24, leaving 351 frost-free days in a typical year.

Frost and freeze dates for Goodyear
Typical date1 year in 10
Last spring frost (32°F)Jan 7after Feb 5
First fall frost (32°F)Dec 24before Dec 6
Hard freeze (28°F)in about 20% of years; no typical date
Frost-free season351 daysunder 320 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Litchfield Park (USC00024977), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Arizona.

Hottest and coldest readings, 1991-2020

The highest reading was 122°F (July 28, 1995); the lowest was 23°F (January 14, 2007).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Goodyear

Similar climates elsewhere

Also covers

Avondale uses the same temperature and rain stations as Goodyear, so its monthly numbers are the ones on this page.

Where the numbers come from

  • Temperature, snowfall and snow depth: Youngtown (USC00029634), 12 mi NNE of the city center, 1,135 ft (170 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Rain: Tolleson 1 E (USC00028598), 6.7 mi E of the city center, 1,025 ft (60 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Litchfield Park (USC00024977), 4.4 mi N of the city center, 1,040 ft (75 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Phoenix Sky Harbor Intl Airport (USW00023183), 20 mi E of the city center, 1,107 ft (142 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Luke AFB Airport (722785-23111), 7.9 mi N of the city center, 1,085 ft (120 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).

Distances from the city center (USGS). Methodology · Report an error