US Growing Degree Days Plummet

“Temperatures are much colder this year than the previous.” Excerpts from  | Sep 3, 2019

Most coverage of the difficulties plaguing the 2019 US season has revolved around the consequences of our “wettest year ever.” Rightly so, as the flooding across the nation continues to effect a substantial (and often fatal) blow to farmers’ operations. The flooding has been widely covered in most media, to the exclusion of another important factor: temperatures are much colder this year than the previous.

Cold temperatures pose problems for an already late crop to reach maturation. As Pro Farmer’s DTN Senior Ag Meteorologist mentions:

The extent of delayed planting of the 2019 U.S. corn crop appears to be coalescing around the idea that, in general, the U.S. corn crop is around three weeks late. With that in mind, the temperature trend takes on extra urgency for the crop.

Growing Degree Days are a measure of heat accumulation used to predict crop maturity. In the absence of extreme conditions such as unseasonal drought or disease, plants grow in a cumulative stepwise manner which is strongly influenced by the ambient temperature. In other words, GDD values provide a best case outlook as to plants’ pace to maturity.

If your GDD drops below certain thresholds, certain crops can no longer be grown.

Down 12.8!

  • 95% of US ZIP codes experienced a colder growing season in 2019 than 2018.
  • On average, a US ZIP code received 87.2% of the heat accumulation as in 2019 — a 12.8% drop!

Try it Yourself

  • Click here to check your ZIP code and see how you are affected.

See entire article:

Thanks to Jack Hydrazine for this link


14 thoughts on “US Growing Degree Days Plummet”

  1. The growing of crops is actually the biggest concern of Dr. Valentina Zharkova when she discusses the imminent Grand Solar Minimum.
    Humorously dismissive of Hollywood imagery of Frozen Everything, she is nonetheless VERY concerned about the planet’s food producing cacapabilities … particularly the 2028 to 2032 timeframe when she expects the effects of low temperatures to be the most pronounced.

  2. I believe this. Here south of New Orleans my tomatoes plants I plant every year accumulating at least on a bad year 150, have only had 18 this year. I started late and they died early.

  3. I’m somewhat confused by this. Is the 2019 growing season over?

    In Missouri temps are in the mid 80’s with no sign of frost yet.

    It ain’t over til it’s over.

  4. Cool (pun intended). Very cool where I live north of Sweetgrass Montana. Approximately the same climate zone.

    GDD has decreased in Sweet Grass, MT to 67.92% of previous value (-32.08% drop) (Using postal code 59484).

    Pretty much what I’ve seen here up in Calgary. Tomatoes are late etc.

  5. For people who have a genuine interest, the ice age farmer and adapt 2030 on youtube are always worth watching. Undecided about oppenhiemer ranch though but will keep giving it a chance

  6. sorta useful china not buying any, if they were ,supplies would be at superhigh for american users.
    next yrs prices will be damned high with the little that might manage to get harvested this yr.

  7. Shouldn’t most or all of the Carbon Taxes, Fees, and Revenues being collected globally go to relief funds used to cope with this coming agricultural catastrophe?

    That is the intended purpose to help society right ? Not destroy the US economy of which energy is its life blood. Yes? [SARC]

  8. If you think about all the rhetoric regarding Soybean Tariffs. I think its a distraction around the real issue, which is a cooling climate induced collapse in crop yields. I suspect we barely have enough soybeans to fill the US domestic demand let alone sufficient surplus to sell to China.

    Same goes for feed crops used in cattle production. This would feed into the narrative of the push for a “plant based meat” substitution market you’ve been seeing lately in media. I think its a losing proposition in the long run, time will bare that out..

    • Steevo, All the data is at USDA crop reports. Including amount in storage. There is probably enough grain in storage to get us thru 1 or 2 years, not 7 years like the olden times. The caveat there especially this year is that you believe the USDA. This fall’s reports on projected acreage and yields may be pure fantasy. We will know in October.

  9. Maybe it is time to start a victory/survival garden. I do NOT wish to survive a cataclysm if/or SHTF, but for a local/short term “cataclysm” a garden will make a difference!!!
    I am not selling anything and do not promote any political platform, but about ten years ago when I decided to have a vegetable garden I found out that is not as simple as I thought. I believed that all I have to do is to turn the soil over, the to trow some seed over my shoulder and when I’ll turn around I’ll have a garden. Well..I was sow wrong. In the first three years I got a few tomatoes that cost me about $5 a piece. So, I looked on the internet and learned from other people’s experience and finally I got a vegetable garden that I was proud of.
    This year, because some health issues I was not able to have a regular garden so I started a pot garden on my back porch. I got enough veggies and herbs for my LARGE family of two, and some extra for freezing. So if you don’t have enough space for a garden you can have a pot garden. It is not that you may need it to survive but the quality of veggies is much better and in time much cheaper. My suggestion to you is to start small and learn as you go. Good luck!

  10. We grow peaches, grapes, and tomatoes every year on our northern california ranch. Even though summer came late we managed to get everything planted as summer weather finally kicked in. This years growing season was the shortest we have seen. We experienced very low yields this year. All of our produce ripened early even though we planted late. All of our produce was miniature sized but had an unbelievable rich taste. It was a tough battle all summer trying to keep plants healthy as they struggled to grow correctly. Nothing we did fixed the problem.

  11. IMHO the silver skies of chemtrails are contributing greatly to the reduced crop seasons and inability of some veggies to reach full maturity in the shorter cooler weather as well. The USAF openly admits to “geo-engineering” to “help prevent global warming”. Just in time for a solar cooling event. God help us.

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