Frost history / Loraine 5 Nne, CA
Loraine 5 Nne, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00045100, 2011 to 2025, measured from daily minimum temperatures.
Elevation 4,235 ft, 35.384, -118.412. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 19 | Nov 4 |
| Earliest | Apr 9 (2020) | Oct 1 (2019) |
| Latest | May 30 (2011) | Dec 1 (2018) |
| Trend | 30.1 days earlier per decade | 4.9 days earlier per decade |
| Years with data | 10 | 10 |
At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Dec 2.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2025 | no data | Nov 18 | no data | Dec 28 |
| 2023 | no data | Oct 2 | no data | Nov 29 |
| 2020 | Apr 9 | no data | Mar 28 | no data |
| 2019 | Apr 11 | Oct 1 | Mar 14 | Nov 26 |
| 2018 | Apr 20 | Dec 1 | Apr 20 | Dec 12 |
| 2017 | May 16 | Nov 28 | Apr 10 | Dec 4 |
| 2016 | Apr 16 | Nov 17 | Mar 30 | Nov 17 |
| 2015 | May 10 | Nov 5 | Mar 4 | Nov 11 |
| 2014 | May 12 | Nov 3 | Apr 2 | Dec 18 |
| 2013 | Apr 18 | Oct 30 | Apr 17 | Dec 4 |
| 2012 | Apr 16 | Oct 27 | Apr 16 | Nov 11 |
| 2011 | May 30 | no data | Apr 14 | no data |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.