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Weather Data exchange July 2009
July Weather Data from Bill Arthur, South Perth County
Still cool and cloudy is best way to sum up July '09.
Total HU to date of 1501 is a new low to end of July for me, even '92 had 1522
HU by the end of July. The good news is I only had 1502 HU end of July in
'97and 1514 in '03 so there is hope yet.
The concern I have though is hours of sun. I expect they are quite low this year
as cloud has been a constant with at least a trace of rain on 19 days
although the total 67.5mm is below my July average of 95.3.
Corn is just beginning to tassel in this area with the first tassel showing in
my corn July 30 the latest date I have recorded and the first wheat is being
combined today, July 31. This is not the latest wheat start, as we did not
start until Aug 5 in '92 and Aug 2 in '96. These are not good milestones
as weather for combining and different corn varieties are not constant but
give an indication of our late season as corn has tasseled as early as July 8
and wheat has started as early as July 10. Usually wheat begins 2-5 days
after the first tassel shows.
Corn although late still looks good in some fields and poor in others with poor
spots showing where it was planted in 'tough' ground or compaction is a factor.
Soys are well canopied and looking good in most fields BUT weeds are starting
to show in a number of fields and will continue to increase this season.
Edible beans have been planted from the first of June until the first of July
so a late frost is necessary for the late fields to make harvest this year.
Early fields are looking good but a number of fields showed yellow leaves
earlier in the month from spray? or wet feet?
First wheat looks like a good yield and quick sample indicates only a few sprouts
and a little fusarium. The final verdict on quality is unknown at this time.
Later planted wheat will be poorer as those fields are thin and never caught up this year.
The highest temperature for the month was 26.5C and only 6 days at 25 or higher. Add
to that 7 nights in the single digits and that is why I have so few HU.
We need more heat and sun but past records indicate we can still mature our crops
if Mother Nature just helps a little
July Weather Stats from Peter Stewart, S.E. Northumberland County
Our rainfall came in two big events with 38 mm on the 2nd and 65 mm on the 23rd - 24th.
The beans were just starting to wilt on the gravel before the 23rd. Otherwise, lots
of moisture with many cloudy days and shots of 1 to 8 mm. Very tough haying weather.
It has made the beans competitive with the soybean aphids which are spotty. Most areas
are under control, but there is spraying in hot spots that shoot to over 700 aphids
per leaf. It is a farm to farm, field to field situation.
As for most of Ontario, the Heat Units are a concern. Most of us remember last year
which was cool and we are 84 HU behind last year, or in other words, three and a half
nice summer days and seven from our historical average. Comparing to our cold gold
standard, 1992, we are 20 HU ahead. Less than a day. Whew! However we are trailing
the other rivals, 1997 and 2000. So the good news is that we are still in the hunt,
but definitely not out of the woods. It all depends now on when the crops were planted
and what the rest of the year brings.
Early planted (April early May) corn has been tasseling since the 28th, the same as '92.
The stuff planted three weeks later or second cropped to first cut hay, has a ways to go.
Lots of moisture for it though. Most corn is variable depending on drainage and planting
conditions. Beans in general look good. The greatest damage was from slugs and some
areas were thinned so badly, it was difficult to recover. The beans on the shallower
soils are enjoying the year.
Wheat harvest has not started locally. A few have sampled and stopped. There are a lot of
loads coming up out of the County. I see in '92 and '00 our wheat harvest was not until late August.
July Weather Data from Neil Moore, Lindsay area
Above rainfall and but continuing below heat units at my place, almost no rain for 3 weeks
from July 2 to 23, recent rain was widespread
Early corn and beans growing well but still need more heat, aphid problems in parts of fields
The winter wheat fields are ripening, white is sprouted, early spring cereals are ripening
second cut ready to go but the weather is not
Night temperatures above 15C on 10 nights, 10C or below on 5 nights
Day highs: 0 day 30C or above, 9 days 25C or above, and 4 days below 20C