Williamsburg weather by month
What a typical year looks like in Williamsburg, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at CANON CITY, 10 km from Williamsburg; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 13.7 in348 mm
- Snow a year
- 38 in97 cm
- Last spring freeze
- May 5
- First fall freeze
- Oct 8
- Heating degree days
- 5,440
- Cooling degree days
- 750
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Williamsburg in January
Highs average 49°10° and lows 18°−8°, with 0.55 in14 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 80°27° (1943)
- Record low
- −24°−31° (1901)
- Heating degree days
- 964
- Cooling degree days
- 0
Williamsburg in February
Highs average 50°10° and lows 20°−7°, with 0.57 in14 mm of precipitation and 6 in16 cm of snow in a typical February.
- Record high
- 82°28° (1930)
- Record low
- −30°−34° (1905)
- Heating degree days
- 838
- Cooling degree days
- 0
Williamsburg in March
Highs average 59°15° and lows 26°−3°, with 1 in26 mm of precipitation and 6 in15 cm of snow in a typical March.
- Record high
- 91°33° (2026)
- Record low
- −13°−25° (1948)
- Heating degree days
- 704
- Cooling degree days
- 0
Williamsburg in April
Highs average 64°18° and lows 33°1°, with 1.8 in45 mm of precipitation and 4 in10 cm of snow in a typical April.
- Record high
- 90°32° (1929)
- Record low
- 5°−15° (1920)
- Heating degree days
- 488
- Cooling degree days
- 1
Williamsburg in May
Highs average 73°23° and lows 43°6°, with 1.6 in40 mm of precipitation and 0.5 in1.3 cm of snow in a typical May.
- Record high
- 98°37° (2000)
- Record low
- 15°−9° (1978)
- Heating degree days
- 235
- Cooling degree days
- 22
Williamsburg in June
Highs average 85°29° and lows 52°11°, with 0.85 in22 mm of precipitation in a typical June.
- Record high
- 104°40° (1930)
- Record low
- 30°−1° (1925)
- Heating degree days
- 38
- Cooling degree days
- 140
Williamsburg in July
Highs average 89°32° and lows 59°15°, with 2.3 in57 mm of precipitation in a typical July.
- Record high
- 107°42° (1954)
- Record low
- 35°2° (1903)
- Heating degree days
- 3
- Cooling degree days
- 281
Williamsburg in August
Highs average 87°30° and lows 57°14°, with 2.1 in52 mm of precipitation in a typical August.
- Record high
- 102°39° (1902)
- Record low
- 35°2° (1910)
- Heating degree days
- 10
- Cooling degree days
- 225
Williamsburg in September
Highs average 80°27° and lows 48°9°, with 1.2 in30 mm of precipitation and 0.2 in0.5 cm of snow in a typical September.
- Record high
- 100°38° (1899)
- Record low
- 25°−4° (1908)
- Heating degree days
- 100
- Cooling degree days
- 77
Williamsburg in OctoberThis month
Highs average 69°20° and lows 36°2°, with 0.87 in22 mm of precipitation and 3 in8 cm of snow in a typical October.
- Record high
- 95°35° (1913)
- Record low
- −3°−19° (2019)
- Heating degree days
- 396
- Cooling degree days
- 4
Williamsburg in November
Highs average 57°14° and lows 26°−3°, with 0.55 in14 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 84°29° (2025)
- Record low
- −24°−31° (1976)
- Heating degree days
- 698
- Cooling degree days
- 0
Williamsburg in December
Highs average 49°9° and lows 19°−7°, with 0.46 in12 mm of precipitation and 6 in16 cm of snow in a typical December.
- Record high
- 82°28° (1928)
- Record low
- −25°−32° (1900)
- Heating degree days
- 966
- Cooling degree days
- 0
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