Millstone weather by month
What a typical year looks like in Millstone, Kentucky: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Clintwood 1w, 23 km from Millstone; records cover 1993–2026.
The year at a glance
- Precipitation a year
- 49.2 in1249 mm
- Snow a year
- 38 in98 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 16
- Heating degree days
- 5,176
- Cooling degree days
- 593
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 4°−16° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Millstone in January
Highs average 43°6° and lows 22°−6°, with 3.7 in94 mm of precipitation and 12 in29 cm of snow in a typical January.
- Record high
- 76°24° (2020)
- Record low
- −19°−28° (1994)
- Heating degree days
- 1020
- Cooling degree days
- 0
Millstone in February
Highs average 47°8° and lows 24°−4°, with 3.9 in99 mm of precipitation and 11 in27 cm of snow in a typical February.
- Record high
- 78°26° (2018)
- Record low
- −23°−31° (1996)
- Heating degree days
- 832
- Cooling degree days
- 0
Millstone in March
Highs average 56°13° and lows 29°−1°, with 4.4 in112 mm of precipitation and 7 in17 cm of snow in a typical March.
- Record high
- 85°29° (2020)
- Record low
- 0°−18° (1996)
- Heating degree days
- 693
- Cooling degree days
- 0
Millstone in April
Highs average 68°20° and lows 38°3°, with 4.6 in116 mm of precipitation and 0.8 in2 cm of snow in a typical April.
- Record high
- 90°32° (2010)
- Record low
- 18°−8° (1997)
- Heating degree days
- 379
- Cooling degree days
- 5
Millstone in May
Highs average 74°23° and lows 48°9°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 92°33° (1996)
- Record low
- 28°−2° (2005)
- Heating degree days
- 162
- Cooling degree days
- 37
Millstone in June
Highs average 80°26° and lows 56°13°, with 5.1 in130 mm of precipitation in a typical June.
- Record high
- 97°36° (2012)
- Record low
- 36°2° (2003)
- Heating degree days
- 30
- Cooling degree days
- 111
Millstone in July
Highs average 82°28° and lows 61°16°, with 5.3 in135 mm of precipitation in a typical July.
- Record high
- 97°36° (2012)
- Record low
- 45°7° (1996)
- Heating degree days
- 5
- Cooling degree days
- 199
Millstone in August
Highs average 81°27° and lows 60°16°, with 4.1 in103 mm of precipitation in a typical August.
- Record high
- 95°35° (1999)
- Record low
- 41°5° (1999)
- Heating degree days
- 7
- Cooling degree days
- 171
Millstone in September
Highs average 76°24° and lows 53°12°, with 3.3 in83 mm of precipitation in a typical September.
- Record high
- 94°34° (1995)
- Record low
- 31°−1° (1999)
- Heating degree days
- 83
- Cooling degree days
- 64
Millstone in OctoberThis month
Highs average 66°19° and lows 40°4°, with 2.8 in72 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 89°32° (2019)
- Record low
- 20°−7° (1997)
- Heating degree days
- 373
- Cooling degree days
- 6
Millstone in November
Highs average 55°13° and lows 30°−1°, with 2.8 in71 mm of precipitation and 1.1 in2.8 cm of snow in a typical November.
- Record high
- 82°28° (2003)
- Record low
- 8°−13° (2014)
- Heating degree days
- 674
- Cooling degree days
- 0
Millstone in December
Highs average 46°8° and lows 25°−4°, with 4.3 in108 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 73°23° (2001)
- Record low
- −4°−20° (2004)
- Heating degree days
- 918
- Cooling degree days
- 0