Last Frost Date Sparks: Frost Dates, Late Frost Risk & Growing Season

When is the last spring frost and the first autumn frost in Sparks? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.

The frost season in Sparks

Last frost (average): April 19
In 1 year out of 10 it still freezes on May 12.
First frost: October 15
Frost-free season: 176 days
Frost after 15 May: in 10 % of years

Frost days per month in Sparks

January: 22.7 · -3 °C
February: 17.1 · -2 °C
March: 11.5 · 1 °C
April: 5 · 4 °C
May: 0.4 · 8 °C
June: 0 · 12 °C
July: 0 · 16 °C
August: 0 · 15 °C
September: 0.2 · 10 °C
October: 4.8 · 4 °C
November: 16.5 · 0 °C
December: 24.6 · -4 °C

Matched to the average lows of a weather station 3 km away – accurate to about ±1–2 weeks.
Daily minimum temperatures 2 m above ground over 30 years (1991–2020), NASA POWER; station data: Deutscher Wetterdienst (CC BY 4.0). Ground frost can form while the air at 2 m is still +2 to +3 °C.