When to plant in Hanover Park, IL
Planting dates worked out from Hanover Park's own frost records, not a generic zone chart.
Last spring frost
- Early · riskyApr 249 years in 10 still get a later frost
- TypicalMay 9about half of years get a later frost
- Safe to plant outMay 281 year in 10 gets a later frost
Hardy crops like peas and spinach are timed from the typical date. Wait for the safe date before planting out tomatoes, peppers and squash.
First fall frost
- EarlyOct 21 year in 10 has frost by then
- TypicalOct 10about half of years have had frost
- LateOct 229 years in 10 have had frost by then
A typical year has 152 frost-free days. Plan for tender crops to be ripe by the early date.
Station used: Streamwood · 4.0 km away · station 250 m, town 245 m. How we match towns to stations
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Apr 2 – Apr 16 | May 28 – Jun 11 | Jul 22 |
| Sweet pepper | Mar 19 – Apr 2 | May 28 – Jun 11 | Jul 27 |
| Lettuce (leaf) | Mar 7 – Mar 14 | Apr 11 – Apr 25 | May 21 |
| Peas | — | Apr 2 – Apr 30 | May 27 |
| Bush beans | — | May 21 – Jun 11 | Jul 10 |
| Carrot | — | Apr 18 – May 30 | Jun 17 |
| Beet | — | Apr 11 – May 23 | May 31 |
| Potato | — | Apr 18 – May 9 | Jun 27 |
| Kale | Feb 28 – Mar 14 | Apr 11 – Apr 25 | May 24 |
| Broccoli | Feb 28 – Mar 14 | Apr 11 – May 2 | Jun 10 |
| Cucumber | Apr 30 – May 7 | May 28 – Jun 11 | Jul 17 |
| Summer squash and zucchini | Apr 30 – May 7 | May 28 – Jun 11 | Jul 12 |
| Winter squash | Apr 30 – May 7 | May 28 – Jun 11 | Aug 16 |
| Sweet corn | — | May 21 – Jun 11 | Jul 20 |
| Onion (from sets) | — | Apr 11 – May 2 | Jul 10 |
| Garlic | — | Sep 26 – Oct 24 (fall) | following summer |
| Spinach | — | Apr 2 – Apr 30 | May 10 |
| Basil | Apr 16 – Apr 30 | May 28 – Jun 11 | Jul 24 |
Hanover Park's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's last spring frostLong-term trend
See the data as a table
| Year | Last spring frost |
|---|---|
| 1995 | May 3 |
| 1996 | May 30 |
| 1997 | May 22 |
| 1998 | Apr 29 |
| 1999 | Apr 25 |
| 2000 | Apr 26 |
| 2001 | May 31 |
| 2002 | May 27 |
| 2003 | Apr 24 |
| 2004 | May 4 |
| 2005 | May 5 |
| 2007 | Apr 17 |
| 2008 | May 19 |
| 2009 | May 17 |
| 2010 | May 9 |
| 2011 | Apr 29 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1995 | 142 |
| 1996 | 126 |
| 1997 | 144 |
| 1998 | 167 |
| 1999 | 160 |
| 2000 | 163 |
| 2001 | 127 |
| 2002 | 139 |
| 2003 | 159 |
| 2004 | 150 |
| 2005 | 170 |
| 2007 | 193 |
| 2008 | 154 |
| 2009 | 145 |
| 2010 | 148 |
| 2011 | 174 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1995 | 18.1 °C |
| 1996 | 16.5 °C |
| 1997 | 16.2 °C |
| 1998 | 18.5 °C |
| 1999 | 18.0 °C |
| 2000 | 16.8 °C |
| 2001 | 17.4 °C |
| 2002 | 18.2 °C |
| 2003 | 17.3 °C |
| 2004 | 17.5 °C |
| 2005 | 19.3 °C |
| 2007 | 18.8 °C |
| 2008 | 17.3 °C |
| 2009 | 16.3 °C |
| 2010 | 20.0 °C |
| 2011 | 17.6 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Streamwood (NOAA GHCN-Daily). Years with too many missing days are left out.