Frost dates for Pueblo Rsvr, CO
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
April 26
typical year
Safe to plant
May 8
frost is over in 9 of 10 years
First fall frost
October 13
typical year
Growing season
166 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Mar 29 – Apr 12 | – |
| Spinach | – | Mar 15 – Apr 5 | Aug 18 – Sep 1 |
| Lettuce | – | Mar 29 – Apr 19 | Aug 18 – Sep 1 |
| Radishes | – | Mar 29 – May 10 | Sep 1 – 15 |
| Onions | – | Mar 29 – Apr 12 | – |
| Potatoes | – | Apr 5 – 19 | – |
| Carrots | – | Apr 5 – 26 | Jul 21 – Aug 4 |
| Beets | – | Mar 29 – Apr 12 | Aug 4 – 18 |
| Kale | Feb 15 – Mar 1 | Mar 29 – Apr 12 | Aug 4 – 18 |
| Broccoli | Feb 15 – Mar 1 | Apr 12 – 26 | Aug 4 – 18 |
| Cabbage | Feb 1 – 15 | Mar 29 – Apr 12 | Aug 4 – 18 |
| Garlic | – | – | Sep 1 – 22 |
| Warm-season crops | |||
| Tomatoes | Mar 13 – 27 | May 8 – 22 | – |
| Peppers | Mar 6 – 20 | May 15 – 29 | – |
| Cucumbers | – | May 8 – 29 | – |
| Zucchini | – | May 8 – Jun 5 | – |
| Pumpkins | – | May 8 – 29 | – |
| Green beans | – | May 8 – Aug 4 | – |
| Sweet corn | – | May 8 – Jun 5 | – |
| Basil | Apr 3 – 17 | May 15 – 22 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | May 8 | April 26 | April 13 |
| Fall frost before | September 30 | October 13 | October 25 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around April 16 (April 30 in a late year), and the first one in fall around October 22.
Where these dates come from
NOAA weather station PUEBLO RSVR, CO US (USC00056765), 1991–2020 climate normals. It's the nearest station for 4 zip codes, all within 15 miles:
81003, 81004, 81005, 81007
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.