Benson weather by month
What a typical year looks like in Benson, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Benson 6se, 9 km from Benson; records cover 1944–2026.
The year at a glance
- Precipitation a year
- 11.8 in299 mm
- Snow a year
- 0.2 in0.5 cm
- Last spring freeze
- Apr 11
- First fall freeze
- Nov 2
- Heating degree days
- 2,562
- Cooling degree days
- 1,952
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
Benson in January
Highs average 65°18° and lows 27°−3°, with 0.8 in20 mm of precipitation and 0.2 in0.5 cm of snow in a typical January.
- Record high
- 84°29° (1971)
- Record low
- 6°−14° (1964)
- Heating degree days
- 592
- Cooling degree days
- 0
Benson in February
Highs average 68°20° and lows 30°−1°, with 0.63 in16 mm of precipitation in a typical February.
- Record high
- 90°32° (1957)
- Record low
- 4°−16° (2011)
- Heating degree days
- 447
- Cooling degree days
- 0
Benson in March
Highs average 74°24° and lows 35°2°, with 0.57 in14 mm of precipitation in a typical March.
- Record high
- 100°38° (2026)
- Record low
- 10°−12° (2021)
- Heating degree days
- 317
- Cooling degree days
- 2
Benson in April
Highs average 81°27° and lows 41°5°, with 0.19 in4.8 mm of precipitation in a typical April.
- Record high
- 99°37° (2012)
- Record low
- 18°−8° (1945)
- Heating degree days
- 144
- Cooling degree days
- 30
Benson in May
Highs average 90°32° and lows 49°9°, with 0.17 in4.3 mm of precipitation in a typical May.
- Record high
- 108°42° (2005)
- Record low
- 26°−3° (1950)
- Heating degree days
- 28
- Cooling degree days
- 159
Benson in June
Highs average 99°37° and lows 58°14°, with 0.29 in7.4 mm of precipitation in a typical June.
- Record high
- 112°44° (2017)
- Record low
- 37°3° (1991)
- Heating degree days
- 1
- Cooling degree days
- 401
Benson in July
Highs average 98°36° and lows 66°19°, with 2.7 in67 mm of precipitation in a typical July.
- Record high
- 110°43° (1958)
- Record low
- 46°8° (1973)
- Heating degree days
- 0
- Cooling degree days
- 518
Benson in August
Highs average 95°35° and lows 65°18°, with 2.8 in71 mm of precipitation in a typical August.
- Record high
- 110°43° (2020)
- Record low
- 48°9° (1983)
- Heating degree days
- 0
- Cooling degree days
- 465
Benson in September
Highs average 92°33° and lows 58°15°, with 1.6 in42 mm of precipitation in a typical September.
- Record high
- 106°41° (2023)
- Record low
- 35°2° (1945)
- Heating degree days
- 2
- Cooling degree days
- 303
Benson in OctoberThis month
Highs average 84°29° and lows 45°7°, with 0.65 in17 mm of precipitation in a typical October.
- Record high
- 101°38° (2024)
- Record low
- 20°−7° (1971)
- Heating degree days
- 82
- Cooling degree days
- 72
Benson in November
Highs average 73°23° and lows 34°1°, with 0.51 in13 mm of precipitation in a typical November.
- Record high
- 91°33° (2014)
- Record low
- 10°−12° (2010)
- Heating degree days
- 349
- Cooling degree days
- 2
Benson in December
Highs average 64°18° and lows 27°−3°, with 0.88 in22 mm of precipitation in a typical December.
- Record high
- 84°29° (1954)
- Record low
- −7°−22° (1978)
- Heating degree days
- 600
- Cooling degree days
- 0