Smartsville weather by month
What a typical year looks like in Smartsville, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Grass Valley No. 2, 19 km from Smartsville; records cover 1966–2026.
The year at a glance
- Precipitation a year
- 53.2 in1351 mm
- Snow a year
- 9 in22 cm
- Last spring freeze
- Apr 15
- First fall freeze
- Nov 9
- Heating degree days
- 3,962
- 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 24°−4° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Smartsville in January
Highs average 54°12° and lows 33°1°, with 9.3 in236 mm of precipitation and 0.7 in1.8 cm of snow in a typical January.
- Record high
- 77°25° (1968)
- Record low
- 15°−9° (1979)
- Heating degree days
- 671
- Cooling degree days
- 0
Smartsville in February
Highs average 55°13° and lows 34°1°, with 9 in228 mm of precipitation and 3 in8 cm of snow in a typical February.
- Record high
- 81°27° (1971)
- Record low
- 9°−13° (1989)
- Heating degree days
- 573
- Cooling degree days
- 0
Smartsville in March
Highs average 58°14° and lows 37°3°, with 8.2 in207 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 85°29° (2026)
- Record low
- 19°−7° (1970)
- Heating degree days
- 544
- Cooling degree days
- 0
Smartsville in April
Highs average 63°17° and lows 40°4°, with 4.4 in113 mm of precipitation and 0.5 in1.3 cm of snow in a typical April.
- Record high
- 88°31° (1981)
- Record low
- 26°−3° (1976)
- Heating degree days
- 410
- Cooling degree days
- 1
Smartsville in May
Highs average 71°22° and lows 47°8°, with 2.5 in63 mm of precipitation in a typical May.
- Record high
- 99°37° (1984)
- Record low
- 27°−3° (1988)
- Heating degree days
- 218
- Cooling degree days
- 26
Smartsville in June
Highs average 80°27° and lows 53°11°, with 0.74 in19 mm of precipitation in a typical June.
- Record high
- 102°39° (2021)
- Record low
- 36°2° (1988)
- Heating degree days
- 66
- Cooling degree days
- 108
Smartsville in July
Highs average 88°31° and lows 58°15°, with 0 in0 mm of precipitation in a typical July.
- Record high
- 108°42° (1972)
- Record low
- 40°4° (1987)
- Heating degree days
- 5
- Cooling degree days
- 256
Smartsville in August
Highs average 87°31° and lows 57°14°, with 0.11 in2.8 mm of precipitation in a typical August.
- Record high
- 108°42° (1971)
- Record low
- 41°5° (1989)
- Heating degree days
- 5
- Cooling degree days
- 225
Smartsville in September
Highs average 82°28° and lows 52°11°, with 0.44 in11 mm of precipitation in a typical September.
- Record high
- 108°42° (2022)
- Record low
- 35°2° (1986)
- Heating degree days
- 49
- Cooling degree days
- 115
Smartsville in OctoberThis month
Highs average 72°22° and lows 44°7°, with 2.6 in65 mm of precipitation in a typical October.
- Record high
- 98°37° (2024)
- Record low
- 27°−3° (1969)
- Heating degree days
- 231
- Cooling degree days
- 19
Smartsville in November
Highs average 60°15° and lows 37°3°, with 5.5 in140 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 87°31° (1966)
- Record low
- 19°−7° (1977)
- Heating degree days
- 496
- Cooling degree days
- 0
Smartsville in December
Highs average 53°11° and lows 33°0°, with 10.5 in266 mm of precipitation and 1.2 in3 cm of snow in a typical December.
- Record high
- 80°27° (1980)
- Record low
- 3°−16° (1972)
- Heating degree days
- 694
- Cooling degree days
- 0