Climate Dashboard for NC Corn Growers
This tool provides corn growers in North Carolina with climate-based information and predictions about seasonal corn development. To use this tool, select your location and planting date (past or anticipated) and click “Update Chart”. Scroll down to see forecasts. This tool was sponsored by the Corn Growers Association of North Carolina. Learn more about this tool, the datasets and calculations used, and a tutorial on our About Page.
** April 2023 Update: The map interface has been updated to resolve an issue with some browsers **
1. Select Your Location
Planting Guidance Chart for 35.724°N -78.683 °E
Based on Today's Date
Corn germination is based on an accumulation of at least 40-50 GDDs over the next 4-5 days (of the current date, not the planting date). This table shows the predicted accumulation of GDDs over the next 5 days, starting with each date.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| Sep 18 | Sep 19 | Sep 20 | Sep 21 | Sep 22 | Sep 23 | Sep 24 |
| Sep 25 91 | Sep 26 87 | Sep 27 69 | Sep 28 70 | Sep 29 53 | Sep 30 35 | Oct 1 17 |
Numbers in each box indicate the forecasted 5-day accumulated GDDs, starting on the given date. Daily GDDs are based on NWS Forecasts for days 0-7, and on historical averages for days 8+. 5-day accumulations shown may be based on a combination of NWS forecasts and historical data.
Please Note: Actual conditions may differ from local forecasts and historical averages. We recommend you return to this tool for updated forecast information.
Please Note: Actual conditions may differ from local forecasts and historical averages. We recommend you return to this tool for updated forecast information.
Output Chart
Crop Stages
| Code | Stage | Threshold | Predicted Date | Accum GDD as of Predicted Date |
|---|---|---|---|---|
| V0 | Planted | Mon, Sep 25 2023 | 22 | |
| Today | Mon, Sep 25 2023 | 19 | ||
| V2 | Two Leaves Fully Emerged | 200 | Fri, Oct 6 2023 | 212 |
| V4 | Four Leaves Fully Emerged | 345 | Sun, Oct 15 2023 | 356 |
| V6 | Six Leaves Fully Emerged | 475 | Sun, Oct 29 2023 | 485 |
| V8 | Eight Leaves Fully Emerged | 610 | Wed, Nov 29 2023 | 610 |
Latest 7-Day National Weather Service Forecast for 35.724°N -78.683 °E
| Date | Max Temp (°F) | Min Temp (°F) | Precip (in) | GDD | Stress Degree Days |
|---|---|---|---|---|---|
| Mon, Sep 25 2023 | 81.9 | 62.0 | 0 | 22 | 0.0 |
| Tue, Sep 26 2023 | 76.0 | 58.9 | 0 | 17 | 0.0 |
| Wed, Sep 27 2023 | 72.9 | 58.9 | 0 | 16 | 0.0 |
| Thu, Sep 28 2023 | 72.9 | 62.0 | N/A | 17 | 0.0 |
| Fri, Sep 29 2023 | 74.9 | 62.0 | N/A | 18 | 0.0 |
| Sat, Sep 30 2023 | 74.9 | 60.0 | N/A | 17 | 0.0 |
| Sun, Oct 1 2023 | 74.9 | N/A | N/A | N/A | 0.0 |
| 7 Day Totals | 81.97 DayMaximum | 58.97 DayMinimum | 07 DayAccumulation | 1077 DayAccumulation | 07 DayAccumulation |
Longer-Term Climate Outlooks from NWS Climate Prediction Center
| Period | Temperature Outlook (Probability) | Precipitation Outlook (Probability) |
|---|---|---|
| 6-10 days Sat, Sep 30 - Wed, Oct 4 | Above Normal33% probability of Above Normal temperatures over the next 6-10 days | Below Normal33% chance of Below Normal precipitation over the next 6-10 days |
| 8-14 days Mon, Oct 2 - Sun, Oct 8 | Above Normal40% probability of Above Normal temperatures over the next 8-14 days | Normal36% chance of Normal precipitation over the next 8-14 days |
| 1 month Oct 2023 | Above Normal40% probability of Above Normal temperatures over the next 1 month | Above Normal33% chance of Above Normal precipitation over the next 1 month |
| 3 months Oct 2023 - Dec 2023 | Above Normal33% probability of Above Normal temperatures over the next 3 months | Above Normal40% chance of Above Normal precipitation over the next 3 months |
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Data Sources
Past Data Sources
- Past data from PRISM: Daily Temperature and Precipitation Gridded Product [Learn more about PRISM]
- Recent data from RTMA: National Weather Service's Real-Time Mesoscale Analysis (aggregated to daily) [Learn more about RTMA]
- Forecast data from NDFD: National Digital Forecast Database [Learn more about NDFD]
- Historical data calculated from PRISM: PRISM Daily Data averaged over past 10 years [Learn more about PRISM]
- Forecast data from NWS: National Weather Service [Learn more about NWS]
- Climate Outlooks from CPC: NWS Climate Prediction Center [Learn more about CPC]