US Growing Season Getting Shorter

The average last day above 80F in the US in 1950 occurred on October 26. This year it occurred on October 6.

October temperatures in the US have been declining for over a century, with a sharp drop during the 1960s.

The warmest October was 1963.

15 Oct 1963, 23 – Calgary Herald at

02 Oct 1963, 1 – Sioux City Journal at

31 Oct 1963, 28 – The Windsor Star at

29 Oct 1963, Page 3 – The Des Moines Register at

The earlier arrival of fall is reflected in greatly increased autumn snow extent in North America, which is due to the freeze line moving further south.

Rutgers University Climate Lab :: Global Snow Lab

We had our coldest end of October on record in Boulder this year. This was my solar panel  on Halloween day.

Temperatures at NCAR never made it out of single digits for 24 hours.

Winter Park Resort to open Saturday, earliest first day in 80-year existence | FOX31 Denver

I don’t think I had ever seen the pond frozen before Thanksgiving before.


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11 Responses to US Growing Season Getting Shorter

  1. Gator says:

    Not just short, but wet.

    Besides the late harvest in many states, the weather was unkind to the quality of the crop, with many farmers reporting low test weights, more broken kernels and other discountable grade factors. Perhaps one of the biggest challenges during the 2019 corn harvest was that the corn was wet and needed drying. Farmers faced drying charges, and in the Upper Midwest, propane shortages left farmers and some elevators unable to dry corn, causing a slowdown in harvest, on top of the major snowstorms that started as early as Oct. 1.

  2. S.K. Dodsland says:

    In an scenario with the solar magnetic field waning making our global temperature cooler and the growing season shorter, will an increase in atmospheric co2 due to increased fossil fuel usage help mitigate against reduced agricultural production?

  3. MeMyselfAndI says:

    Breitbart has a story today:

    James Taylor: Record Farm Yields Contradict Climate Doomsayers’ Claims

    One of the comments to the article raised a good point: The carbon in oil came from plants which extracted CO2 from the atmosphere via photosynthesis, so all we are doing by burning fossil fuels is returning the CO2 back to the atmosphere from which it came. The commenter suggested the CO2 level should be 1000 ppm.

    • Disillusioned says:

      If this interglacial will allow it, we might get to 1000 ppm. However, we’re probably very close to the edge of the cliff .

      Either way – whether it’s 1000 ppm and no runaway GHE, or when we fall off the cliff into the next glaciation – Anthropogenic CO2-caused Global Warming will be a dead and buried, failed hypothesis.

    • spike55 says:

      Growers using CO2 in actual real greenhouses, generally use around 1000-1200ppm.

      I used to live next to a guy that had about 50 of those CO2 enriched greenhouses.

      He told me he had once done some experiments and found going more than that didn’t give him a lot of extra gain, some but not enough to make the cost worth it.

      But up to there, the gain in all levels of plant growth, so long as he kept the requisite amount of trace element up to the plants, was quite significant and very worthwhile.

  4. T. Erickson says:

    Thank you Tony. The 2019 growing season was short here in Nebraska (and the corn belt in general) with late planting because of rain, and a long harvest with a lack or drying.

    Even the potato harvesters here had a short season.

  5. Gerald Machnee says:

    Apparently most in Canada have not noticed. They are still talking about the growing season getting longer.

  6. KevinPaul says:

    History has a habit of repeating, to the chagrin of those who choose to ignore it.

    “A new interpretation of the inscription on Rökstenen – the worlds’s most famous #runestone – is now being presented. An interdisciplinary research project shows that the stone was erected for fear of a climate disaster.”
    I’d like to see Mann try erasing the Rökstenen.

    We’re having a miserable cool summer here in New Zealand, this mornings dawn felt and smelt just like an autumn day. Aussie is hot because of an earlier anomaly in the Indian Ocean, but I believe Southern South America like us, is also experiencing a cool summer.
    The quieting sun is taking effect, but man will still get the blame from the moronic climate priests and nobility of the masses.

  7. scott allen says:

    Any seed dealer in the midwest could have told you that it is getting cooler in the summers and the growing seasons are getting shorter, farmers are planting varieties of seeds that mature faster, and are able to with stand cooler temperatures and wetter springs and falls
    Biology doesn’t care what NOAA/NASA reports as temperatures, it only cares what the real temperatures are.

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