Willcox weather by month
What a typical year looks like in Willcox, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Willcox, 0 km from Willcox; records cover 1903–2026.
The year at a glance
- Precipitation a year
- 12.4 in315 mm
- Snow a year
- 1.7 in4.3 cm
- Last spring freeze
- Apr 16
- First fall freeze
- Oct 29
- Heating degree days
- 2,758
- Cooling degree days
- 1,788
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 17°−8° (heating, 99%) and 105°41° (cooling, 1%).
Month by month
Willcox in January
Highs average 61°16° and lows 28°−2°, with 1 in26 mm of precipitation and 0.6 in1.5 cm of snow in a typical January.
- Record high
- 85°29° (2024)
- Record low
- −1°−18° (1962)
- Heating degree days
- 625
- Cooling degree days
- 0
Willcox in February
Highs average 65°18° and lows 32°0°, with 0.93 in24 mm of precipitation and 0.6 in1.5 cm of snow in a typical February.
- Record high
- 88°31° (1957)
- Record low
- 2°−17° (1971)
- Heating degree days
- 466
- Cooling degree days
- 0
Willcox in March
Highs average 72°22° and lows 36°2°, with 0.66 in17 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 98°37° (2026)
- Record low
- 6°−14° (1964)
- Heating degree days
- 340
- Cooling degree days
- 1
Willcox in April
Highs average 79°26° and lows 42°5°, with 0.22 in5.6 mm of precipitation in a typical April.
- Record high
- 99°37° (2020)
- Record low
- 9°−13° (1971)
- Heating degree days
- 164
- Cooling degree days
- 18
Willcox in May
Highs average 87°31° and lows 50°10°, with 0.34 in8.6 mm of precipitation in a typical May.
- Record high
- 105°41° (1951)
- Record low
- 18°−8° (1967)
- Heating degree days
- 35
- Cooling degree days
- 142
Willcox in June
Highs average 97°36° and lows 59°15°, with 0.45 in11 mm of precipitation in a typical June.
- Record high
- 112°44° (2016)
- Record low
- 27°−3° (1971)
- Heating degree days
- 1
- Cooling degree days
- 382
Willcox in July
Highs average 96°36° and lows 66°19°, with 2.6 in67 mm of precipitation in a typical July.
- Record high
- 110°43° (1905)
- Record low
- 42°6° (1913)
- Heating degree days
- 0
- Cooling degree days
- 490
Willcox in August
Highs average 94°34° and lows 65°18°, with 2.5 in63 mm of precipitation in a typical August.
- Record high
- 109°43° (2025)
- Record low
- 41°5° (1938)
- Heating degree days
- 0
- Cooling degree days
- 437
Willcox in September
Highs average 90°32° and lows 57°14°, with 1.2 in31 mm of precipitation in a typical September.
- Record high
- 105°41° (1929)
- Record low
- 30°−1° (1965)
- Heating degree days
- 3
- Cooling degree days
- 269
Willcox in OctoberThis month
Highs average 82°28° and lows 45°7°, with 0.68 in17 mm of precipitation in a typical October.
- Record high
- 101°38° (2010)
- Record low
- 15°−9° (1970)
- Heating degree days
- 100
- Cooling degree days
- 48
Willcox in November
Highs average 71°21° and lows 34°1°, with 0.7 in18 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 91°33° (1915)
- Record low
- 8°−13° (1921)
- Heating degree days
- 379
- Cooling degree days
- 1
Willcox in December
Highs average 60°16° and lows 28°−2°, with 1.1 in28 mm of precipitation and 0.2 in0.5 cm of snow in a typical December.
- Record high
- 81°27° (1915)
- Record low
- −7°−22° (1978)
- Heating degree days
- 645
- Cooling degree days
- 0