Round Valley weather by month
What a typical year looks like in Round Valley, Arizona: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Payson, 6 km from Round Valley; records cover 1940–2026.
The year at a glance
- Precipitation a year
- 19.8 in504 mm
- Snow a year
- 19 in47 cm
- Last spring freeze
- Apr 28
- First fall freeze
- Oct 22
- Heating degree days
- 3,890
- Cooling degree days
- 1,004
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 15°−9° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Round Valley in January
Highs average 56°13° and lows 26°−3°, with 2.3 in58 mm of precipitation and 5 in12 cm of snow in a typical January.
- Record high
- 77°25° (1971)
- Record low
- −8°−22° (1971)
- Heating degree days
- 742
- Cooling degree days
- 0
Round Valley in February
Highs average 59°15° and lows 28°−2°, with 2.3 in59 mm of precipitation and 5 in12 cm of snow in a typical February.
- Record high
- 80°27° (1986)
- Record low
- 1°−17° (1962)
- Heating degree days
- 613
- Cooling degree days
- 0
Round Valley in March
Highs average 65°18° and lows 32°0°, with 1.9 in48 mm of precipitation and 2 in5.1 cm of snow in a typical March.
- Record high
- 90°32° (2026)
- Record low
- 3°−16° (1966)
- Heating degree days
- 516
- Cooling degree days
- 0
Round Valley in April
Highs average 72°22° and lows 36°2°, with 0.82 in21 mm of precipitation and 2 in5.1 cm of snow in a typical April.
- Record high
- 91°33° (1996)
- Record low
- 15°−9° (1955)
- Heating degree days
- 336
- Cooling degree days
- 0
Round Valley in May
Highs average 80°27° and lows 43°6°, with 0.54 in14 mm of precipitation in a typical May.
- Record high
- 99°37° (1996)
- Record low
- 22°−6° (1975)
- Heating degree days
- 143
- Cooling degree days
- 31
Round Valley in June
Highs average 90°32° and lows 51°10°, with 0.21 in5.3 mm of precipitation in a typical June.
- Record high
- 106°41° (1961)
- Record low
- 31°−1° (1993)
- Heating degree days
- 15
- Cooling degree days
- 180
Round Valley in July
Highs average 93°34° and lows 60°15°, with 2.8 in71 mm of precipitation in a typical July.
- Record high
- 107°42° (1958)
- Record low
- 39°4° (1956)
- Heating degree days
- 0
- Cooling degree days
- 341
Round Valley in August
Highs average 91°33° and lows 59°15°, with 2.6 in66 mm of precipitation in a typical August.
- Record high
- 104°40° (1993)
- Record low
- 37°3° (1956)
- Heating degree days
- 0
- Cooling degree days
- 306
Round Valley in September
Highs average 86°30° and lows 52°11°, with 1.5 in39 mm of precipitation in a typical September.
- Record high
- 103°39° (1948)
- Record low
- 33°1° (1955)
- Heating degree days
- 20
- Cooling degree days
- 137
Round Valley in OctoberThis month
Highs average 76°24° and lows 41°5°, with 1.3 in32 mm of precipitation in a typical October.
- Record high
- 94°34° (1980)
- Record low
- 16°−9° (1971)
- Heating degree days
- 218
- Cooling degree days
- 9
Round Valley in November
Highs average 64°18° and lows 31°−1°, with 1.5 in38 mm of precipitation and 1.3 in3.3 cm of snow in a typical November.
- Record high
- 83°28° (1999)
- Record low
- 6°−14° (1975)
- Heating degree days
- 520
- Cooling degree days
- 0
Round Valley in December
Highs average 55°13° and lows 26°−4°, with 2.1 in53 mm of precipitation and 4 in9 cm of snow in a typical December.
- Record high
- 77°25° (1950)
- Record low
- −9°−23° (1990)
- Heating degree days
- 767
- Cooling degree days
- 0