USDA Hardiness Zone 6a
Frost Dates for 62320 — Camp Point, Illinois
NOAA 1991–2020 normals from Golden, IL (718 ft), 7 miles northeast.
Updated
In Camp Point, the last spring frost (32°F) is around April 18 in half of years and has passed by May 1 in nine years out of ten. The first fall frost comes around October 21, as early as October 6 one year in ten, leaving a typical freeze-free season of 187 days (NOAA, Golden, IL).
- Last spring frost
- April 18
- First fall frost
- October 21
- Growing season
- 187 days
- Hardiness zone
- 6a
50% probability
50% probability
freeze-free, 50%
-10 to -5°F (-23.3 to -20.6°C) coldest night
- First snow
- December 1
- Last snow
- March 17
- Winters with snow
- 100%
- Snow per year
- 24.1"
median, 1991–2020
median, 1991–2020
25 of 25 observed
NOAA normal
Frost risk by date in Camp Point
Half of springs at Golden, IL see their last 32°F night by April 18; only one in ten is past it by April 3, and one in ten still has one after May 1. Planting tender crops after April 23 leaves a 30% risk of a frost on them, after April 26 20%, and after May 1 10%. The 13 days between the even-odds date and the one-in-ten date is the narrowest of the 158 Illinois stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 21 in half of years, as early as October 6 one year in ten, and holds off past November 1 one year in ten. A hard freeze of 28°F follows 10 days later, around October 31; in spring the one-in-ten date for 28°F is April 21, 10 days before the 32°F one. The freeze-free season lasts 187 days in a typical year, longer than at 54% of the 158 Illinois stations; it reaches 204 days one year in ten and falls short of 166 one year in ten. On average 124 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 10 days longer, to about April 28, and return around October 11. Severe cold of 16°F or below comes every winter, usually between November 29 and March 9.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 13 | Apr 18 | Apr 22 | Apr 24 | Apr 28 | Apr 30 | May 2 | May 5 | May 11 |
| 32°F | Apr 3 | Apr 7 | Apr 11 | Apr 14 | Apr 18 | Apr 20 | Apr 23 | Apr 26 | May 1 |
| 28°F | Mar 21 | Mar 29 | Apr 1 | Apr 4 | Apr 7 | Apr 10 | Apr 13 | Apr 17 | Apr 21 |
| 24°F | Mar 10 | Mar 16 | Mar 20 | Mar 25 | Mar 29 | Apr 1 | Apr 3 | Apr 7 | Apr 12 |
| 20°F | Mar 1 | Mar 7 | Mar 10 | Mar 14 | Mar 17 | Mar 21 | Mar 25 | Mar 30 | Apr 3 |
| 16°F | Feb 21 | Feb 28 | Mar 3 | Mar 6 | Mar 9 | Mar 12 | Mar 16 | Mar 19 | Mar 25 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 25 | Sep 30 | Oct 4 | Oct 8 | Oct 11 | Oct 14 | Oct 16 | Oct 19 | Oct 23 |
| 32°F | Oct 6 | Oct 12 | Oct 15 | Oct 19 | Oct 21 | Oct 23 | Oct 25 | Oct 29 | Nov 1 |
| 28°F | Oct 19 | Oct 23 | Oct 26 | Oct 29 | Oct 31 | Nov 2 | Nov 5 | Nov 9 | Nov 14 |
| 24°F | Oct 29 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 20 | Nov 25 |
| 20°F | Nov 6 | Nov 11 | Nov 14 | Nov 18 | Nov 21 | Nov 24 | Nov 27 | Dec 1 | Dec 7 |
| 16°F | Nov 13 | Nov 18 | Nov 22 | Nov 26 | Nov 29 | Dec 3 | Dec 7 | Dec 12 | Dec 18 |
Freeze probabilities 1991–2020 at Golden, IL, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 62320 →Compare Camp Point with another place →
Weather by month in Camp Point
July is the warmest month at Golden, IL, averaging 87°F by day and 65°F at night; January is the coldest at 34°F and 16°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 10% of years.
Warmth for growing adds up to 3,540 growing degree days a year (base 50°F), more than at 54% of the 158 Illinois stations. 36% of them (1,275) have built up by the end of June, and July adds the most, 794.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 34 | 16 | 100% | 28 | 1 |
| Feb | 39 | 20 | 100% | 24 | 2 |
| Mar | 51 | 30 | 100% | 20 | 41 |
| Apr | 64 | 40 | 93% | 6 | 142 |
| May | 74 | 52 | 10% | <1 | 409 |
| Jun | 83 | 62 | 0% | 0 | 679 |
| Jul | 87 | 65 | 0% | 0 | 794 |
| Aug | 85 | 63 | 0% | 0 | 735 |
| Sep | 79 | 54 | 4% | 0 | 496 |
| Oct | 66 | 43 | 87% | 4 | 197 |
| Nov | 51 | 32 | 100% | 17 | 38 |
| Dec | 39 | 22 | 100% | 26 | 5 |
Monthly normals 1991–2020 at Golden, IL (718 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Quincy Regional Airport, IL, 8 miles southwest of Camp Point, has a last frost 4 days earlier (April 14), a first frost 2 days later (October 23), a season 4 days longer.
When it snows in Camp Point, Illinois
The first measurable snow (0.1 inch or more) in Camp Point usually arrives around December 1, and the last of the season around March 17. Those are the middle dates across the winters of 1991–2020 at Augusta, IL, 16.2 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 32 days after the last snow.
Planting calendar for 62320
| When | What to do |
|---|---|
| February 7 – February 21 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 21 – March 7 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 21 – April 4 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 18 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 29 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 7 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 21 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 62320 is 7 miles from Golden, IL, which stands at 718 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 62320 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.