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Wisconsin Crop Weather Report

Issued August 13 for Week Ending August 12, 2018

Usual Planting and Harvesting Dates

The Wisconsin Crop Weather Report is updated weekly by the Wisconsin Agricultural Statistical Service.

Vol. 18, No. 20

Rains Inadequate Again

There were 5.9 days suitable for fieldwork for the week ending August 12, 2018, according to the USDA’s National Agricultural Statistics Service. Wisconsin endured yet another week of hot, muggy weather and isolated thunderstorms. Rainfall was concentrated in the southern districts, while some portions of the northern and central districts received no measurable precipitation. Corn and soybean pollination was wrapping up this week. Some reporters were concerned that soil moisture may be inadequate in their area during the critical stages of cob and pod development. Longer, soaking and widespread rains are needed to boost seed development and promote growth in pastures and hay stands.

Topsoil moisture supplies were rated 6 percent very short, 28 percent short, 65 percent adequate and 1 percent surplus. Subsoil moisture supplies were rated 4 percent very short, 24 percent short, 70 percent adequate and 2 percent surplus.

Wisconsin Crop Conditions
Item V-Poor Poor Fair Good Excellent
Corn 1 5 16 46 32
Hay, All 1 4 18 55 22
Oats 1 3 17 54 25
Pasture & Range 2 8 25 43 22
Potatoes 2 2 10 55 31
Soybeans 1 5 18 48 28
Source: USDA, NASS, Wisconsin Field Office.

Ninety-four percent of the state’s corn acreage has reached the silking stage, 6 days ahead of both last year and the 5-year average. Forty-five percent of the corn has reached the dough stage, 5 days ahead of both last year and the average. Four percent of corn was dented. Corn condition was 78 percent good to excellent.

Ninety-three percent of soybeans have bloomed, 2 days ahead of last year and 4 days ahead of the average. Eighty percent were setting pods, 3 days ahead of last year and 5 days ahead of the average. Soybean condition was 76 percent good to excellent.

Oats turning color was reported at 96 percent, 2 days ahead of last year. Oats harvested for grain was reported as 50 percent complete, 4 days ahead of last year but 1 day behind the average. Oat condition was 79 percent good to excellent down 5 percentage points from last week.

Potato harvest was reported as 13 percent complete, 9 days behind last year. Potato condition was 86 percent good to excellent.

Winter wheat harvest was reported as 92 percent complete, 2 days ahead of last year.

The third cutting of alfalfa was 68 percent complete, 1 day ahead of last year and 5 days ahead of the average. The fourth cutting was 6 percent complete, even with last year and 1 day ahead of the average. All hay condition was reported 77 percent in good to excellent condition.

Pasture condition was rated 65 percent in good to excellent condition, compared with 71 percent in good to excellent condition last week.

Wisconsin Crop Progress
Crop and percent
of acreage
District Average State Average
Alfalfa Hay, Third Cutting 62 46 63 66 63 76 73 71 80 68 52 67 57
Alfalfa Hay, Fourth Cutting 7 2 2 3 4 5 10 7 5 6 1 6 4
Corn Silking 91 73 86 94 95 96 99 98 93 94 87 89 89
Corn Dough 34 20 21 49 51 32 73 46 42 45 28 32 31
Oats Coloring 93 92 96 90 96 99 100 100 99 96 93 94 n.a.
Oats Harvested for Grain 38 20 26 54 54 36 94 90 77 50 36 41 52
Potatoes Harvested 21 5 6 8 15 n.a. 21 11 n.a. 13 9 18 n.a.
Soybeans Blooming 97 73 90 96 93 84 99 96 94 93 88 91 89
Soybeans Setting Pods 90 61 71 77 82 68 90 89 77 80 64 75 70
Winter Wheat Harvested 63 57 80 65 88 93 97 99 93 92 82 89 n.a.
n.a. = not available

Selected Quotes from Farm Reporters and County Ag Agents
All comments are used in creating this report, but only a few are published below.

BARRON-P.T.: Took a road trip. The corn and beans looked very good all the way to southern Indiana. Our farm is on heaver ground but we are starting to see the effects of not enough rain.

BAYFIELD/DOUGLAS-C.B.: Rainfall mid-week, less than one inch throughout the area. Still very dry. The grass is turning brown and has stopped growing in many parts of the area.

CLARK-R.H.: Again this week spotty showers. Most areas are receiving some moisture but some areas are missing. Overall, crops look good. A lot of hay is cut but the spotty showers are delaying getting it into storage. Small grain harvest much the same story. Corn and soybeans are looking good. A few farmers have said they need some rain to finish the crop. With the early planted corn, it could be ready for silage harvest early September.

FLORENCE/FOREST-T.B.: Lack of rain and high temperatures has stressed all crops. Very dry conditions.

ST CROIX-D.K.: Dry weather has started taking a toll on crops. Irrigators are running everywhere. Fourth crop hay on unirrigated land is nonexistent

TREMPEALEAU-L.N.: Dry weather continues to plague the northern end of the county. Rain just skips over the area. Some hail damage in the middle of the county. Some areas in middle and southern part of the county are being blessed with rain and crops look good, but other areas are crying for moisture.

ADAMS/JUNEAU-J.W.: Warm humid weather has allowed the crops to grow but we haven't received much rain out of it. The sandy knolls and light soils are showing significant signs of heat stress. Overall, crops look good and harvest of forage has progressed pretty well. We have not heard of any significant damage from insects or hail.

WAUPACA-D.L.H.: Muggy days with heavy dew are slowing harvest of winter wheat, oats, and dry hay. Some oat fields have become very weedy. Warm weather is pushing maturity of soybeans and corn.

KEWAUNEE-T.S.: There have been wild swings in crop conditions here, mainly because of some rain one week and then nothing the next week. Overall, this summer has been more dry and warm than expected and the crops are suffering. This past week saw little if any rain and a lot of sunshine. The crops on the more dry soils are really showing stress. Some of the corn that was planted late is being hit especially hard, with short growth and curling leaves. Depending on how much, if any, rain falls in the next few weeks, some of this corn may have to be chopped for silage much earlier than normal. The corn on the lower soils is looking good at the present time, along with the soybeans. The bean crop is doing okay, but its condition has deteriorated as well. Patches of weeds and volunteer corn are showing up as are areas of plants that have leaves that are wilting and curling. This may be due to a lack of moisture or it may be a sign of mites or other pests attacking the beans. This is the time of year when the grain is being made, and without adequate rainfall, yield will go down. The alfalfa has been weathering the warmer and drier weather alright, but third crop growth has been less than expected. The current weather has been favorable for the harvesting of wheat and oats and the baling of hay. The moisture content of the grain and the hay has been much lower this year, making for better quality of both.

VERNON-K.L.: Hot and humid this past week. Farmers finishing up with small grain harvest. A little rain at the beginning of the week, however, more is needed. Corn and soybeans still look good. Pastures declining daily.

DODGE-M.P.: Another great week of weather. Temperatures in the 80s and scattered showers across the county makes good conditions for growing corn and beans. The areas that didn't receive the rain were able to make dry hay. Crops are all looking good right now.

WALWORTH-N.W.: Some much needed rain received this week. Hopefully will get some more the middle of this coming week.

Wisconsin Weekly Weather, Selected Cities
Ending as of 7:00 am on August 12, 2018

City Temperature Growing degree days
(modified base 50) 1/
Avg max Avg min High max Low min Avg Avg
dep from normal*
Mar 1 to Aug 11 Mar 1 to Aug 11
Last week Since
Jun 1
Jun 1
dep from normal*
To Date
dep from normal*
Eau Claire 85 62 89 59 74 +3 2019 1748 0.00 7.48 -2.23 20.60 +0.60
Green Bay 83 63 86 59 73 +4 1927 1621 0.09 9.02 -0.90 21.75 +4.07
La Crosse 87 67 90 64 77 +4 2398 1956 0.52 6.67 -2.99 21.81 +1.24
Madison 82 63 87 58 72 +1 2078 1903 1.45 11.64 +2.26 30.23 +9.39
Milwaukee 83 67 91 64 75 +3 1981 n.a. 1.39 10.04 +1.61 25.72 +4.29

T = Trace. n.a. = not available.
1/Formula used: GDD = (Daily Maximum (86°) + Daily Minimum (50°)) / 2 - 50° where 86° is used if the maximum exceeds 86° and 50° is used if the minimum falls below 50°. Explanation.
*Normal based on 1971-2000 data.
Data from the NCEP/NOAA Climate Prediction Center
For more weather data, please reference the following sites: http://www.noaa.gov/ http://www.aos.wisc.edu/~sco/ http://www.cocorahs.org/ http://www.weather.gov/

This report has been made possible through the cooperative efforts of the U.S. Department of Agriculture, the Wisconsin Department of Agriculture, Trade, and Consumer Protection, and the National Weather Service.

For climate normals and growing season data for a specific Wisconsin county, first go to our Wisconsin County Home Page, then select your county, then click on the Climate Table link in the left margin for that county.

Current Crop Report with Graphics at USDA

Wisconsin Agricultural Statistical Service

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