Frost dates for 93642Mono Hot Springs, CA
The average last spring frost in Mono Hot Springs is June 1 and the average first fall frost is October 6, giving a typical growing season of about 129 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Jun 1
- Average first fall frost
- Oct 6
- Growing season
- 129 days
Safer after Jun 18 (1-in-10 risk)
Possible by Sep 19 (1-in-10 risk)
Last frost typically in 211 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) | Jun 1 · Jun 13 · Jun 30 | Sep 4 · Sep 21 · Oct 9 | 100 days | 100% |
| Frost / freeze (32°F) | May 13 · Jun 1 · Jun 18 | Sep 19 · Oct 6 · Oct 30 | 129 days | 100% |
| Hard freeze (28°F) | Apr 24 · May 12 · Jun 4 | Oct 2 · Oct 25 · Nov 15 | 162 days | 100% |
Planting calendar for Mono Hot Springs
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 | May 1 – Jul 7 |
| Tomatoes | Transplant outdoors | Jun 17 – Jun 16 |
| Peppers | Start seeds indoors | May 1 – Jun 1 |
| Peppers | Transplant outdoors | Jul 1 – Aug 1 |
| Eggplant | Start seeds indoors | May 18 – Jun 16 |
| Eggplant | Transplant outdoors | Jul 1 – Aug 1 |
| Cucumbers | Sow outdoors | Jul 1 – Jun 26 |
| Summer squash | Sow outdoors | Jun 17 – Aug 1 |
| Winter squash & pumpkins | Sow outdoors | Jul 1 – Aug 1 |
| Snap beans | Sow outdoors | Jun 17 – Jul 19 |
| Sweet corn | Sow outdoors | Jun 17 – Jun 16 |
| Watermelon & cantaloupe | Sow outdoors | Jul 1 – Aug 1 |
| Okra | Sow outdoors | Jun 24 – Jul 17 |
| Peas | Sow outdoors (spring) | May 1 – Jun 16 |
| Potatoes | Plant outdoors (spring) | May 1 – Jul 1 |
| Onions | Start seeds indoors (spring) | Mar 20 – Apr 16 |
| Onions | Transplant outdoors (spring) | May 18 – Jun 16 |
| Broccoli | Start seeds indoors (spring) | Apr 13 – May 17 |
| Broccoli | Transplant outdoors (spring) | May 18 – Jun 16 |
| Broccoli | Start seeds indoors (fall) | Jun 6 – Jun 16 |
| Broccoli | Transplant outdoors (fall) | Jul 6 – Jul 17 |
| Cabbage | Start seeds indoors (spring) | Apr 3 – May 1 |
| Cabbage | Transplant outdoors (spring) | May 1 – Jun 1 |
| Cabbage | Start seeds indoors (fall) | May 27 – Jun 26 |
| Cabbage | Transplant outdoors (fall) | Jun 26 – Jul 27 |
| Leaf lettuce | Sow outdoors (spring) | May 1 – Jul 17 |
| Leaf lettuce | Sow outdoors (fall) | Jun 26 – Aug 12 |
| Spinach | Sow outdoors (spring) | Apr 24 – Jun 7 |
| Spinach | Sow outdoors (fall) | Jul 13 – Aug 17 |
| Radishes | Sow outdoors (spring) | May 1 – Jun 21 |
| Radishes | Sow outdoors (fall) | Jun 26 – Aug 27 |
| Kale | Sow outdoors (spring) | May 18 – Jun 7 |
| Kale | Sow outdoors (fall) | Jun 19 – Jul 27 |
| Carrots | Sow outdoors (spring) | Jun 1 – Jul 17 |
| Carrots | Sow outdoors (fall) | May 27 – Jul 12 |
| Garlic | Plant outdoors (fall) | Sep 26 – Oct 27 |
Where these dates come from
ZIP code 93642 is matched to the NOAA station Huntington Lake, CA, 21.1 km away, at 7,020 ft elevation (465 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Huntington Lake, CA (used) | 7,020 ft | Jun 1 | Oct 6 |
| Mammoth Lakes Rs, CA | 7,805 ft | Jun 10 | Sep 17 |
| N Fk Rs, CA | 2,645 ft | Apr 24 | Nov 4 |
| Balch Pwr House, CA | 1,735 ft | Feb 23 | Dec 12 |
Frost dates near Mono Hot Springs
- Lakeshore, CA 93634 · last Jun 1, first Oct 6
- Big Creek, CA 93605 · last May 24, first Oct 10
- Shaver Lake, CA 93664 · last Jun 1, first Oct 6
- Mammoth Lakes, CA 93546 · last Jun 10, first Sep 17
- North Fork, CA 93643 · last Apr 24, first Nov 4
- Bass Lake, CA 93604 · last Apr 21, first Oct 27
- Wishon, CA 93669 · last May 24, first Oct 10
- Auberry, CA 93602 · last Mar 25, first Dec 3
Frequently asked questions
- When is the last frost in Mono Hot Springs, CA?
- For ZIP code 93642, the average last spring frost (32°F) is June 1, based on NOAA 1991-2020 climate normals for the Huntington Lake, CA weather station. There is a 1-in-10 chance of a frost after June 18.
- When is the first frost in Mono Hot Springs, CA?
- The average first fall frost (32°F) is October 6. There is a 1-in-10 chance of frost by September 19, so tender plants are at risk from that point on.
- How long is the growing season in 93642?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 129 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.