Silt weather by month
What a typical year looks like in Silt, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Rifle Garfield County Airport, 6 km from Silt; records cover 1997–2026.
The year at a glance
- Precipitation a year
- 10.7 in273 mm
- Snow a year
- Rare
- Last spring freeze
- May 14
- First fall freeze
- Oct 5
- Heating degree days
- 6,398
- Cooling degree days
- 631
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −4°−20° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Silt in January
Highs average 37°3° and lows 13°−10°, with 0.7 in18 mm of precipitation in a typical January.
- Record high
- 56°13° (2000)
- Record low
- −15°−26° (2007)
- Heating degree days
- 1237
- Cooling degree days
- 0
Silt in February
Highs average 44°6° and lows 20°−7°, with 0.6 in15 mm of precipitation in a typical February.
- Record high
- 68°20° (2017)
- Record low
- −12°−24° (2011)
- Heating degree days
- 934
- Cooling degree days
- 0
Silt in March
Highs average 55°13° and lows 27°−3°, with 0.76 in19 mm of precipitation in a typical March.
- Record high
- 85°29° (2026)
- Record low
- −2°−19° (2002)
- Heating degree days
- 738
- Cooling degree days
- 0
Silt in April
Highs average 63°17° and lows 33°0°, with 1 in26 mm of precipitation in a typical April.
- Record high
- 87°31° (2020)
- Record low
- 13°−11° (2020)
- Heating degree days
- 518
- Cooling degree days
- 0
Silt in May
Highs average 74°24° and lows 40°5°, with 1.1 in29 mm of precipitation in a typical May.
- Record high
- 99°37° (2002)
- Record low
- 22°−6° (2011)
- Heating degree days
- 252
- Cooling degree days
- 12
Silt in June
Highs average 86°30° and lows 48°9°, with 0.68 in17 mm of precipitation in a typical June.
- Record high
- 103°39° (2021)
- Record low
- 31°−1° (2007)
- Heating degree days
- 47
- Cooling degree days
- 112
Silt in July
Highs average 92°33° and lows 55°13°, with 0.96 in24 mm of precipitation in a typical July.
- Record high
- 104°40° (2021)
- Record low
- 38°3° (1997)
- Heating degree days
- 0
- Cooling degree days
- 270
Silt in August
Highs average 89°32° and lows 54°12°, with 1.1 in27 mm of precipitation in a typical August.
- Record high
- 102°39° (2020)
- Record low
- 36°2° (2004)
- Heating degree days
- 5
- Cooling degree days
- 199
Silt in September
Highs average 80°27° and lows 45°7°, with 1.3 in34 mm of precipitation in a typical September.
- Record high
- 100°38° (2022)
- Record low
- 23°−5° (1999)
- Heating degree days
- 113
- Cooling degree days
- 38
Silt in OctoberThis month
Highs average 66°19° and lows 34°1°, with 1.3 in32 mm of precipitation in a typical October.
- Record high
- 87°31° (2024)
- Record low
- −6°−21° (2020)
- Heating degree days
- 479
- Cooling degree days
- 0
Silt in November
Highs average 50°10° and lows 23°−5°, with 0.63 in16 mm of precipitation in a typical November.
- Record high
- 74°23° (2008)
- Record low
- −11°−24° (2004)
- Heating degree days
- 855
- Cooling degree days
- 0
Silt in December
Highs average 37°3° and lows 14°−10°, with 0.57 in14 mm of precipitation in a typical December.
- Record high
- 62°17° (2025)
- Record low
- −21°−29° (1998)
- Heating degree days
- 1220
- Cooling degree days
- 0
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