Frost dates for 95389Yosemite National Park, CA
The average last spring frost in Yosemite National Park is May 24 and the average first fall frost is October 10, giving a typical growing season of about 137 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 24
- Average first fall frost
- Oct 10
- Growing season
- 137 days
Safer after Jun 11 (1-in-10 risk)
Possible by Sep 24 (1-in-10 risk)
Last frost typically in 205 days
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) | May 23 · Jun 8 · Jun 26 | Sep 7 · Sep 26 · Oct 13 | 107 days | 100% |
| Frost / freeze (32°F) | May 3 · May 24 · Jun 11 | Sep 24 · Oct 10 · Nov 1 | 137 days | 100% |
| Hard freeze (28°F) | Apr 14 · May 3 · May 29 | Oct 3 · Oct 29 · Nov 15 | 173 days | 100% |
Planting calendar for Yosemite National Park
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 23 – Jun 29 |
| Tomatoes | Transplant outdoors | Jun 9 – Jun 20 |
| Peppers | Start seeds indoors | Apr 23 – May 24 |
| Peppers | Transplant outdoors | Jun 23 – Jul 24 |
| Eggplant | Start seeds indoors | May 10 – Jun 8 |
| Eggplant | Transplant outdoors | Jun 23 – Jul 24 |
| Cucumbers | Sow outdoors | Jun 23 – Jun 30 |
| Summer squash | Sow outdoors | Jun 9 – Jul 24 |
| Winter squash & pumpkins | Sow outdoors | Jun 23 – Jul 24 |
| Snap beans | Sow outdoors | Jun 9 – Jul 23 |
| Sweet corn | Sow outdoors | Jun 9 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | Jun 23 – Jul 24 |
| Okra | Sow outdoors | Jun 16 – Jul 9 |
| Peas | Sow outdoors (spring) | Apr 23 – Jun 8 |
| Potatoes | Plant outdoors (spring) | Apr 23 – Jun 23 |
| Onions | Start seeds indoors (spring) | Mar 12 – Apr 8 |
| Onions | Transplant outdoors (spring) | May 10 – Jun 8 |
| Broccoli | Start seeds indoors (spring) | Apr 5 – May 9 |
| Broccoli | Transplant outdoors (spring) | May 10 – Jun 8 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 26 – Apr 23 |
| Cabbage | Transplant outdoors (spring) | Apr 23 – May 24 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Apr 23 – Jul 9 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Apr 16 – May 30 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Apr 23 – Jun 13 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | May 10 – May 30 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | May 24 – Jul 9 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 95389 is matched to the NOAA station So Entrance Yosemite Np, CA, 24.4 km away, at 5,047 ft elevation (9 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| So Entrance Yosemite Np, CA (used) | 5,047 ft | May 24 | Oct 10 |
| Yosemite Park Hq, CA | 4,018 ft | Apr 21 | Oct 27 |
| Yosemite Village 12 W, CA | 6,620 ft | May 12 | Nov 1 |
| Hetch Hetchy, CA | 3,870 ft | Apr 16 | Nov 12 |
Frost dates near Yosemite National Park
- El Portal, CA 95318 · last Apr 22, first Nov 2
- Fish Camp, CA 93623 · last May 24, first Oct 10
- Midpines, CA 95345 · last Apr 22, first Nov 2
- Mariposa, CA 95338 · last Apr 22, first Nov 2
- Ahwahnee, CA 93601 · last Apr 24, first Nov 4
- Coulterville, CA 95311 · last Apr 22, first Nov 2
- Groveland, CA 95321 · last Apr 22, first Nov 2
- Oakhurst, CA 93644 · last Apr 24, first Nov 4
Frequently asked questions
- When is the last frost in Yosemite National Park, CA?
- For ZIP code 95389, the average last spring frost (32°F) is May 24, based on NOAA 1991-2020 climate normals for the So Entrance Yosemite Np, CA weather station. There is a 1-in-10 chance of a frost after June 11.
- When is the first frost in Yosemite National Park, CA?
- The average first fall frost (32°F) is October 10. There is a 1-in-10 chance of frost by September 24, so tender plants are at risk from that point on.
- How long is the growing season in 95389?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 137 days long.
- 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.