Frost dates for 93517Bridgeport, CA
Frost is possible in any month near Bridgeport, based on NOAA 1991-2020 records for the Bridgeport, CA station.
Frost is possible in any month. Even summer nights can drop to freezing at this station, so protect tender plants whenever cold nights are forecast.
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | — | — | 35 days | 100% |
| Frost / freeze (32°F) | — | — | 69 days | 100% |
| Hard freeze (28°F) | May 17 · Jun 3 · Jun 23 | Aug 30 · Sep 15 · Oct 1 | 102 days | 100% |
Where these dates come from
ZIP code 93517 is matched to the NOAA station Bridgeport, CA, 1.8 km away, at 6,470 ft elevation (88 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bridgeport, CA (used) | 6,470 ft | — | — |
| Bodie California St Historic P, CA | 8,370 ft | — | — |
| Lee Vining, CA | 6,797 ft | May 23 | Oct 9 |
| Tuolumne Meadows Rs, CA | 8,694 ft | — | — |
Frost dates near Bridgeport
- Lee Vining, CA 93541 · last May 23, first Oct 9
- Coleville, CA 96107 · last —, first —
- Topaz, CA 96133 · last May 23, first Sep 28
- June Lake, CA 93529 · last Jun 10, first Sep 17
- Smith, NV 89430 · last May 23, first Sep 28
- Hawthorne, NV 89415 · last Apr 22, first Oct 25
- Wellington, NV 89444 · last May 23, first Sep 28
- Pinecrest, CA 95364 · last May 2, first Nov 4
Frequently asked questions
- When is the last frost in Bridgeport, CA?
- Frost is possible in any month at the nearest NOAA station (Bridgeport, CA), so there is no reliable average last frost date.
- When is the first frost in Bridgeport, CA?
- Frost is possible in any month at the nearest NOAA station.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.