Frost dates for 96094Weed, CA
The average last spring frost in Weed is May 6 and the average first fall frost is October 12, giving a typical growing season of about 158 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 6
- Average first fall frost
- Oct 12
- Growing season
- 158 days
Safer after May 28 (1-in-10 risk)
Possible by Sep 27 (1-in-10 risk)
Last frost typically in 191 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 10 · May 28 · Jun 15 | Sep 11 · Sep 25 · Oct 9 | 120 days | 100% |
| Frost / freeze (32°F) | Apr 20 · May 6 · May 28 | Sep 27 · Oct 12 · Oct 28 | 158 days | 100% |
| Hard freeze (28°F) | Mar 31 · Apr 17 · May 4 | Oct 14 · Oct 30 · Nov 13 | 192 days | 100% |
Planting calendar for Weed
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 5 – Jun 11 |
| Tomatoes | Transplant outdoors | May 22 – Jun 22 |
| Peppers | Start seeds indoors | Apr 5 – May 6 |
| Peppers | Transplant outdoors | Jun 5 – Jul 6 |
| Eggplant | Start seeds indoors | Apr 22 – May 21 |
| Eggplant | Transplant outdoors | Jun 5 – Jul 6 |
| Cucumbers | Sow outdoors | Jun 5 – Jul 2 |
| Summer squash | Sow outdoors | May 22 – Jul 6 |
| Winter squash & pumpkins | Sow outdoors | Jun 5 – Jul 6 |
| Snap beans | Sow outdoors | May 22 – Jul 25 |
| Sweet corn | Sow outdoors | May 22 – Jun 22 |
| Watermelon & cantaloupe | Sow outdoors | Jun 5 – Jul 6 |
| Okra | Sow outdoors | May 29 – Jun 21 |
| Peas | Sow outdoors (spring) | Apr 5 – May 21 |
| Potatoes | Plant outdoors (spring) | Apr 5 – Jun 5 |
| Onions | Start seeds indoors (spring) | Feb 22 – Mar 21 |
| Onions | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (spring) | Mar 18 – Apr 21 |
| Broccoli | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (fall) | Jun 12 – Jun 22 |
| Broccoli | Transplant outdoors (fall) | Jul 12 – Jul 23 |
| Cabbage | Start seeds indoors (spring) | Mar 8 – Apr 5 |
| Cabbage | Transplant outdoors (spring) | Apr 5 – May 6 |
| Cabbage | Start seeds indoors (fall) | Jun 2 – Jul 2 |
| Cabbage | Transplant outdoors (fall) | Jul 2 – Aug 2 |
| Leaf lettuce | Sow outdoors (spring) | Apr 5 – Jun 21 |
| Leaf lettuce | Sow outdoors (fall) | Jul 2 – Aug 18 |
| Spinach | Sow outdoors (spring) | Mar 29 – May 12 |
| Spinach | Sow outdoors (fall) | Jul 19 – Aug 23 |
| Radishes | Sow outdoors (spring) | Apr 5 – May 26 |
| Radishes | Sow outdoors (fall) | Jul 2 – Sep 2 |
| Kale | Sow outdoors (spring) | Apr 22 – May 12 |
| Kale | Sow outdoors (fall) | Jun 25 – Aug 2 |
| Carrots | Sow outdoors (spring) | May 6 – Jun 21 |
| Carrots | Sow outdoors (fall) | Jun 2 – Jul 18 |
| Garlic | Plant outdoors (fall) | Oct 2 – Nov 2 |
Where these dates come from
ZIP code 96094 is matched to the NOAA station Mt Shasta, CA, 11 km away, at 3,535 ft elevation (107 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Mt Shasta, CA (used) | 3,535 ft | May 6 | Oct 12 |
| Mt Shasta, CA | 3,613 ft | May 15 | Oct 6 |
| Dunsmuir Trtmt Pl, CA | 2,169 ft | Apr 23 | Oct 27 |
| Mccloud, CA | 3,233 ft | May 28 | Sep 30 |
Frost dates near Weed
- Mount Shasta, CA 96067 · last May 6, first Oct 12
- Gazelle, CA 96034 · last May 20, first Oct 5
- Grenada, CA 96038 · last Apr 30, first Oct 18
- Dunsmuir, CA 96025 · last Apr 23, first Oct 27
- Mccloud, CA 96057 · last May 28, first Sep 30
- Callahan, CA 96014 · last May 20, first Oct 5
- Montague, CA 96064 · last May 12, first Oct 8
- Castella, CA 96017 · last Apr 23, first Oct 27
Frequently asked questions
- When is the last frost in Weed, CA?
- For ZIP code 96094, the average last spring frost (32°F) is May 6, based on NOAA 1991-2020 climate normals for the Mt Shasta, CA weather station. There is a 1-in-10 chance of a frost after May 28.
- When is the first frost in Weed, CA?
- The average first fall frost (32°F) is October 12. There is a 1-in-10 chance of frost by September 27, so tender plants are at risk from that point on.
- How long is the growing season in 96094?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 158 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.