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
Corn germination is based on an accumulation of at least 40-50 GDDs over the next 4-5 days. This table shows the predicted accumulation of GDDs over the next 5 days, starting with each date.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| Nov 29 | Nov 30 | Dec 1 | Dec 2 | Dec 3 | Dec 4 | Dec 5 |
| Dec 6 12 Potential Freeze In Next 5 Days | Dec 7 11 Potential Freeze In Next 5 Days | Dec 8 22 Potential Freeze In Next 5 Days | Dec 9 22 Potential Freeze In Next 5 Days | Dec 10 22 | Dec 11 22 | Dec 12 11 |
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 | Thu, Apr 1 2021 | 11 | |
| V2 | Two Leaves Fully Emerged | 200 | Fri, Apr 16 2021 | 200 |
| V4 | Four Leaves Fully Emerged | 345 | Fri, Apr 30 2021 | 346 |
| V6 | Six Leaves Fully Emerged | 475 | Sun, May 9 2021 | 483 |
| V8 | Eight Leaves Fully Emerged | 610 | Thu, May 20 2021 | 625 |
| V10 | Tenth Leaf Fully Emerged | 740 | Tue, May 25 2021 | 749 |
| V12 | Twelfth Leaf Fully Emerged | 870 | Sun, May 30 2021 | 884 |
| V14 | Fourteenth Leaf Fully Emerged | 1,000 | Sun, Jun 6 2021 | 1,027 |
| V16 | Sixteenth Leaf Fully Emerged | 1,135 | Thu, Jun 10 2021 | 1,144 |
| VT to R1 | Silks Emerging | 1,400 | Sun, Jun 20 2021 | 1,408 |
| R2 | Blister Stage | 1,660 | Wed, Jun 30 2021 | 1,662 |
| R4 | Dough Stage | 1,925 | Sat, Jul 10 2021 | 1,934 |
| R5 | Dent Stage | 2,190 | Mon, Jul 19 2021 | 2,210 |
| R6 | Black Layer | 2,450 | Wed, Jul 28 2021 | 2,463 |
| Today | Mon, Dec 6 2021 | 4,810 |
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, Dec 6 2021 | 71.0 | 52.1 | 0 | 12 | 0.0 |
| Tue, Dec 7 2021 | 49.9 | 42.0 | 0.01 | 0 | 0.0 |
| Wed, Dec 8 2021 | 45.9 | 38.0 | 0.36 | 0 | 0.0 |
| Thu, Dec 9 2021 | 49.0 | 31.9 | N/A | 0 | 0.0 |
| Fri, Dec 10 2021 | 60.0 | 36.0 | N/A | 0 | 0.0 |
| Sat, Dec 11 2021 | 72.9 | 49.9 | N/A | 11 | 0.0 |
| Sun, Dec 12 2021 | 69.0 | 53.0 | N/A | 11 | 0.0 |
| 7 Day Totals | 72.97 DayMaximum | 31.97 DayMinimum | 0.377 DayAccumulation | 347 DayAccumulation | 07 DayAccumulation |
Longer-Term Climate Outlooks from NWS Climate Prediction Center
| Period | Temperature Outlook (Probability) | Precipitation Outlook (Probability) |
|---|---|---|
| 6-10 days Sat, Dec 11 - Wed, Dec 15 | Above Normal80% probability of Above Normal temperatures over the next 6-10 days | Equal ChancesEqual chance of above, below, or normal precipitation over the next 6-10 days |
| 8-14 days Mon, Dec 13 - Sun, Dec 19 | Above Normal70% probability of Above Normal temperatures over the next 8-14 days | Equal ChancesEqual chance of above, below, or normal precipitation over the next 8-14 days |
| 1 month Dec 2021 | Above Normal50% probability of Above Normal temperatures over the next 1 month | Equal ChancesEqual chance of above, below, or normal precipitation over the next 1 month |
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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]