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.
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 |
|---|---|---|---|---|---|---|
| Feb 6 | Feb 7 26 Potential Freeze In Next 5 Days | Feb 8 26 Potential Freeze In Next 5 Days | Feb 9 21 Potential Freeze In Next 5 Days | Feb 10 14 Potential Freeze In Next 5 Days | Feb 11 1 Potential Freeze In Next 5 Days | Feb 12 3 Potential Freeze In Next 5 Days |
| Feb 13 4 | Feb 14 5 | Feb 15 5 | Feb 16 7 | Feb 17 5 | Feb 18 4 | Feb 19 2 |
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 | Tue, Feb 7 2023 | 2 | |
| Today | Tue, Feb 7 2023 | 3 | ||
| V2 | Two Leaves Fully Emerged | 200 | Sat, Apr 1 2023 | 202 |
| V4 | Four Leaves Fully Emerged | 345 | Sat, Apr 15 2023 | 346 |
| V6 | Six Leaves Fully Emerged | 475 | Fri, Apr 28 2023 | 483 |
| V8 | Eight Leaves Fully Emerged | 610 | Sat, May 6 2023 | 612 |
| V10 | Tenth Leaf Fully Emerged | 740 | Mon, May 15 2023 | 751 |
| V12 | Twelfth Leaf Fully Emerged | 870 | Mon, May 22 2023 | 891 |
| V14 | Fourteenth Leaf Fully Emerged | 1,000 | Sun, May 28 2023 | 1,022 |
| V16 | Sixteenth Leaf Fully Emerged | 1,135 | Fri, Jun 2 2023 | 1,143 |
| VT to R1 | Silks Emerging | 1,400 | Tue, Jun 13 2023 | 1,418 |
| R2 | Blister Stage | 1,660 | Fri, Jun 23 2023 | 1,685 |
| R4 | Dough Stage | 1,925 | Sun, Jul 2 2023 | 1,935 |
| R5 | Dent Stage | 2,190 | Tue, Jul 11 2023 | 2,199 |
| R6 | Black Layer | 2,450 | Thu, Jul 20 2023 | 2,467 |
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 |
|---|---|---|---|---|---|
| Tue, Feb 7 2023 | 61.1 | 31.0 | 0 | 0 | 0.0 |
| Wed, Feb 8 2023 | 67.9 | 42.0 | 0 | 5 | 0.0 |
| Thu, Feb 9 2023 | 70.1 | 47.0 | 0 | 9 | 0.0 |
| Fri, Feb 10 2023 | 67.0 | 58.9 | N/A | 13 | 0.0 |
| Sat, Feb 11 2023 | 52.1 | 45.9 | N/A | 0 | 0.0 |
| Sun, Feb 12 2023 | 51.0 | 29.0 | N/A | 0 | 0.0 |
| Mon, Feb 13 2023 | 61.1 | 33.0 | N/A | 0 | 0.0 |
| 7 Day Totals | 70.17 DayMaximum | 29.07 DayMinimum | 07 DayAccumulation | 277 DayAccumulation | 07 DayAccumulation |
Longer-Term Climate Outlooks from NWS Climate Prediction Center
| Period | Temperature Outlook (Probability) | Precipitation Outlook (Probability) |
|---|---|---|
| 6-10 days Sun, Feb 12 - Thu, Feb 16 | Above Normal70% probability of Above Normal temperatures over the next 6-10 days | Normal36% chance of Normal precipitation over the next 6-10 days |
| 8-14 days Tue, Feb 14 - Mon, Feb 20 | Above Normal60% probability of Above Normal temperatures over the next 8-14 days | Above Normal33% chance of Above Normal precipitation over the next 8-14 days |
| 1 month Feb 2023 | Above Normal50% probability of Above Normal temperatures over the next 1 month | Above Normal33% chance of Above Normal precipitation over the next 1 month |
| 3 months Feb 2023 - Apr 2023 | Above Normal40% probability of Above Normal temperatures over the next 3 months | Equal ChancesEqual chance of above, below, or 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]