Sun City weather by month
What a typical year looks like in Sun City, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at YOUNGTOWN, 3 km from Sun City; records cover 1964–2026.
The year at a glance
- Precipitation a year
- 8.3 in212 mm
- Snow a year
- Rare
- Last spring freeze
- Jan 25
- First fall freeze
- Dec 15
- Heating degree days
- 1,334
- Cooling degree days
- 3,871
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 32°0° (heating, 99%) and 113°45° (cooling, 1%).
Month by month
Sun City in January
Highs average 65°19° and lows 41°5°, with 0.98 in25 mm of precipitation in a typical January.
- Record high
- 87°31° (1971)
- Record low
- 20°−7° (1970)
- Heating degree days
- 364
- Cooling degree days
- 0
Sun City in February
Highs average 69°21° and lows 44°7°, with 1.3 in32 mm of precipitation in a typical February.
- Record high
- 90°32° (2026)
- Record low
- 24°−4° (1990)
- Heating degree days
- 245
- Cooling degree days
- 3
Sun City in March
Highs average 77°25° and lows 49°9°, with 1 in26 mm of precipitation in a typical March.
- Record high
- 105°41° (2026)
- Record low
- 24°−4° (1966)
- Heating degree days
- 118
- Cooling degree days
- 47
Sun City in April
Highs average 84°29° and lows 55°13°, with 0.29 in7.4 mm of precipitation in a typical April.
- Record high
- 104°40° (2012)
- Record low
- 32°0° (1977)
- Heating degree days
- 29
- Cooling degree days
- 162
Sun City in May
Highs average 93°34° and lows 64°18°, with 0.11 in2.8 mm of precipitation in a typical May.
- Record high
- 113°45° (2000)
- Record low
- 38°3° (1965)
- Heating degree days
- 2
- Cooling degree days
- 413
Sun City in June
Highs average 102°39° and lows 72°22°, with 0.03 in0.8 mm of precipitation in a typical June.
- Record high
- 122°50° (1990)
- Record low
- 51°11° (1969)
- Heating degree days
- 0
- Cooling degree days
- 666
Sun City in July
Highs average 105°41° and lows 80°27°, with 0.84 in21 mm of precipitation in a typical July.
- Record high
- 122°50° (1995)
- Record low
- 62°17° (1966)
- Heating degree days
- 0
- Cooling degree days
- 846
Sun City in August
Highs average 104°40° and lows 79°26°, with 0.97 in25 mm of precipitation in a typical August.
- Record high
- 118°48° (2025)
- Record low
- 54°12° (1968)
- Heating degree days
- 0
- Cooling degree days
- 818
Sun City in September
Highs average 98°37° and lows 73°23°, with 0.74 in19 mm of precipitation in a typical September.
- Record high
- 114°46° (2000)
- Record low
- 48°9° (1965)
- Heating degree days
- 0
- Cooling degree days
- 614
Sun City in OctoberThis month
Highs average 87°31° and lows 60°15°, with 0.59 in15 mm of precipitation in a typical October.
- Record high
- 110°43° (2024)
- Record low
- 35°2° (1970)
- Heating degree days
- 13
- Cooling degree days
- 268
Sun City in November
Highs average 74°23° and lows 48°9°, with 0.61 in15 mm of precipitation in a typical November.
- Record high
- 95°35° (1999)
- Record low
- 28°−2° (1964)
- Heating degree days
- 160
- Cooling degree days
- 34
Sun City in December
Highs average 64°18° and lows 40°5°, with 0.9 in23 mm of precipitation in a typical December.
- Record high
- 84°29° (1980)
- Record low
- 21°−6° (1968)
- Heating degree days
- 403
- Cooling degree days
- 0