Bonanza weather by month
What a typical year looks like in Bonanza, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at SAGUACHE, 23 km from Bonanza; records cover 1894–2026.
The year at a glance
- Precipitation a year
- 8.4 in213 mm
- Snow a year
- Rare
- Last spring freeze
- May 21
- First fall freeze
- Sep 25
- Heating degree days
- 7,759
- Cooling degree days
- 95
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −10°−23° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Bonanza in January
Highs average 36°2° and lows 7°−14°, with 0.2 in5.1 mm of precipitation in a typical January.
- Record high
- 62°17° (1911)
- Record low
- −34°−37° (1971)
- Heating degree days
- 1356
- Cooling degree days
- 0
Bonanza in February
Highs average 41°5° and lows 11°−11°, with 0.26 in6.6 mm of precipitation in a typical February.
- Record high
- 70°21° (1915)
- Record low
- −25°−32° (1933)
- Heating degree days
- 1084
- Cooling degree days
- 0
Bonanza in March
Highs average 51°11° and lows 22°−6°, with 0.39 in9.9 mm of precipitation in a typical March.
- Record high
- 79°26° (2026)
- Record low
- −12°−24° (1939)
- Heating degree days
- 890
- Cooling degree days
- 0
Bonanza in April
Highs average 59°15° and lows 27°−3°, with 0.7 in18 mm of precipitation in a typical April.
- Record high
- 81°27° (1981)
- Record low
- −5°−21° (1936)
- Heating degree days
- 657
- Cooling degree days
- 0
Bonanza in May
Highs average 68°20° and lows 36°2°, with 0.53 in13 mm of precipitation in a typical May.
- Record high
- 92°33° (1910)
- Record low
- 8°−13° (1975)
- Heating degree days
- 397
- Cooling degree days
- 0
Bonanza in June
Highs average 78°25° and lows 44°6°, with 0.62 in16 mm of precipitation in a typical June.
- Record high
- 97°36° (1998)
- Record low
- 22°−6° (1981)
- Heating degree days
- 147
- Cooling degree days
- 13
Bonanza in July
Highs average 80°27° and lows 50°10°, with 1.3 in33 mm of precipitation in a typical July.
- Record high
- 99°37° (2002)
- Record low
- 30°−1° (1900)
- Heating degree days
- 52
- Cooling degree days
- 49
Bonanza in August
Highs average 79°26° and lows 49°9°, with 1.9 in47 mm of precipitation in a typical August.
- Record high
- 96°36° (1912)
- Record low
- 26°−3° (1978)
- Heating degree days
- 69
- Cooling degree days
- 29
Bonanza in September
Highs average 73°23° and lows 40°5°, with 0.99 in25 mm of precipitation in a typical September.
- Record high
- 95°35° (1926)
- Record low
- 13°−11° (1978)
- Heating degree days
- 247
- Cooling degree days
- 4
Bonanza in OctoberThis month
Highs average 62°17° and lows 30°−1°, with 0.66 in17 mm of precipitation in a typical October.
- Record high
- 97°36° (1912)
- Record low
- 0°−18° (1993)
- Heating degree days
- 592
- Cooling degree days
- 0
Bonanza in November
Highs average 49°9° and lows 20°−7°, with 0.58 in15 mm of precipitation in a typical November.
- Record high
- 71°22° (1915)
- Record low
- −22°−30° (1975)
- Heating degree days
- 926
- Cooling degree days
- 0
Bonanza in December
Highs average 36°2° and lows 8°−14°, with 0.31 in7.9 mm of precipitation in a typical December.
- Record high
- 68°20° (1920)
- Record low
- −27°−33° (1918)
- Heating degree days
- 1342
- Cooling degree days
- 0
UniColorado Heating & Cooling, a Denver HVAC installer
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.