Corona de Tucson weather by month
What a typical year looks like in Corona de Tucson, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Green Valley, 21 km from Corona de Tucson; records cover 1998–2026.
The year at a glance
- Precipitation a year
- 12.9 in326 mm
- Snow a year
- Rare
- Last spring freeze
- Feb 25
- First fall freeze
- Nov 30
- Heating degree days
- 1,630
- Cooling degree days
- 2,909
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 26°−3° (heating, 99%) and 107°42° (cooling, 1%).
Month by month
Corona de Tucson in January
Highs average 67°19° and lows 36°2°, with 0.78 in20 mm of precipitation in a typical January.
- Record high
- 88°31° (1999)
- Record low
- 17°−8° (2007)
- Heating degree days
- 419
- Cooling degree days
- 0
Corona de Tucson in February
Highs average 69°21° and lows 39°4°, with 0.86 in22 mm of precipitation in a typical February.
- Record high
- 90°32° (2009)
- Record low
- 16°−9° (2011)
- Heating degree days
- 307
- Cooling degree days
- 3
Corona de Tucson in March
Highs average 76°24° and lows 44°7°, with 0.58 in15 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 101°38° (2026)
- Record low
- 25°−4° (2002)
- Heating degree days
- 182
- Cooling degree days
- 27
Corona de Tucson in April
Highs average 82°28° and lows 50°10°, with 0.27 in6.9 mm of precipitation in a typical April.
- Record high
- 100°38° (2000)
- Record low
- 31°−1° (1999)
- Heating degree days
- 65
- Cooling degree days
- 96
Corona de Tucson in May
Highs average 91°33° and lows 58°15°, with 0.18 in4.6 mm of precipitation in a typical May.
- Record high
- 108°42° (2000)
- Record low
- 44°7° (1998)
- Heating degree days
- 8
- Cooling degree days
- 303
Corona de Tucson in June
Highs average 100°38° and lows 68°20°, with 0.44 in11 mm of precipitation in a typical June.
- Record high
- 112°44° (2016)
- Record low
- 52°11° (1998)
- Heating degree days
- 0
- Cooling degree days
- 564
Corona de Tucson in July
Highs average 99°37° and lows 72°22°, with 2.9 in73 mm of precipitation in a typical July.
- Record high
- 111°44° (2023)
- Record low
- 60°16° (2008)
- Heating degree days
- 0
- Cooling degree days
- 634
Corona de Tucson in August
Highs average 97°36° and lows 71°22°, with 2.7 in68 mm of precipitation in a typical August.
- Record high
- 110°43° (2025)
- Record low
- 60°16° (2007)
- Heating degree days
- 0
- Cooling degree days
- 595
Corona de Tucson in September
Highs average 94°35° and lows 66°19°, with 1.7 in43 mm of precipitation in a typical September.
- Record high
- 109°43° (2020)
- Record low
- 50°10° (2004)
- Heating degree days
- 0
- Cooling degree days
- 462
Corona de Tucson in OctoberThis month
Highs average 87°30° and lows 54°12°, with 0.84 in21 mm of precipitation in a typical October.
- Record high
- 103°39° (2024)
- Record low
- 31°−1° (2020)
- Heating degree days
- 26
- Cooling degree days
- 194
Corona de Tucson in November
Highs average 76°24° and lows 43°6°, with 0.51 in13 mm of precipitation in a typical November.
- Record high
- 93°34° (1999)
- Record low
- 22°−6° (2010)
- Heating degree days
- 195
- Cooling degree days
- 30
Corona de Tucson in December
Highs average 66°19° and lows 36°2°, with 1.1 in29 mm of precipitation in a typical December.
- Record high
- 86°30° (2025)
- Record low
- 21°−6° (2003)
- Heating degree days
- 428
- Cooling degree days
- 1