Antonito weather by month
What a typical year looks like in Antonito, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MANASSA, 12 km from Antonito; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 7.8 in197 mm
- Snow a year
- 30 in75 cm
- Last spring freeze
- May 31
- First fall freeze
- Sep 18
- Heating degree days
- 7,777
- Cooling degree days
- 71
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −15°−26° (heating, 99%) and 88°31° (cooling, 1%).
Month by month
Antonito in January
Highs average 35°2° and lows 5°−15°, with 0.21 in5.3 mm of precipitation and 5 in12 cm of snow in a typical January.
- Record high
- 64°18° (1950)
- Record low
- −37°−38° (1948)
- Heating degree days
- 1396
- Cooling degree days
- 0
Antonito in February
Highs average 41°5° and lows 13°−11°, with 0.22 in5.6 mm of precipitation and 3 in8 cm of snow in a typical February.
- Record high
- 69°21° (1963)
- Record low
- −32°−36° (1933)
- Heating degree days
- 1067
- Cooling degree days
- 0
Antonito in March
Highs average 53°11° and lows 21°−6°, with 0.43 in11 mm of precipitation and 6 in14 cm of snow in a typical March.
- Record high
- 82°28° (2026)
- Record low
- −22°−30° (1962)
- Heating degree days
- 876
- Cooling degree days
- 0
Antonito in April
Highs average 60°16° and lows 28°−2°, with 0.53 in13 mm of precipitation and 4 in9 cm of snow in a typical April.
- Record high
- 82°28° (1964)
- Record low
- −9°−23° (1945)
- Heating degree days
- 626
- Cooling degree days
- 0
Antonito in May
Highs average 69°21° and lows 37°3°, with 0.59 in15 mm of precipitation and 0.4 in1 cm of snow in a typical May.
- Record high
- 95°35° (1969)
- Record low
- 9°−13° (1968)
- Heating degree days
- 379
- Cooling degree days
- 1
Antonito in June
Highs average 79°26° and lows 44°7°, with 0.4 in10 mm of precipitation in a typical June.
- Record high
- 95°35° (1943)
- Record low
- 20°−7° (1919)
- Heating degree days
- 125
- Cooling degree days
- 14
Antonito in July
Highs average 81°27° and lows 49°10°, with 1.1 in27 mm of precipitation in a typical July.
- Record high
- 94°34° (1971)
- Record low
- 30°−1° (1968)
- Heating degree days
- 42
- Cooling degree days
- 39
Antonito in August
Highs average 79°26° and lows 47°8°, with 1.6 in40 mm of precipitation in a typical August.
- Record high
- 95°35° (1919)
- Record low
- 27°−3° (1911)
- Heating degree days
- 81
- Cooling degree days
- 16
Antonito in September
Highs average 73°23° and lows 40°4°, with 1.1 in28 mm of precipitation in a typical September.
- Record high
- 89°32° (1939)
- Record low
- 13°−11° (1912)
- Heating degree days
- 256
- Cooling degree days
- 1
Antonito in OctoberThis month
Highs average 63°17° and lows 28°−2°, with 0.67 in17 mm of precipitation and 2.5 in6.4 cm of snow in a typical October.
- Record high
- 82°28° (1979)
- Record low
- −7°−22° (1967)
- Heating degree days
- 600
- Cooling degree days
- 0
Antonito in November
Highs average 49°9° and lows 17°−8°, with 0.49 in12 mm of precipitation and 5 in11 cm of snow in a typical November.
- Record high
- 78°26° (1950)
- Record low
- −28°−33° (1931)
- Heating degree days
- 963
- Cooling degree days
- 0
Antonito in December
Highs average 36°2° and lows 6°−14°, with 0.43 in11 mm of precipitation and 6 in14 cm of snow in a typical December.
- Record high
- 68°20° (1896)
- Record low
- −33°−36° (1924)
- Heating degree days
- 1366
- Cooling degree days
- 0
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