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Wisconsin Crop Weather Report

Issued October 16 for Week Ending October 15, 2017

Usual Planting and Harvesting Dates

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

Vol. 17, No. 29

Rainy Week Brings First Frost for Some

There were 3.6 days suitable for fieldwork for the week ending October 15, 2017, according to the USDA’s National Agricultural Statistics Service. Temperatures were above normal overall this week, but northwestern Wisconsin experienced multiple nights with below freezing temperatures. Frost was reportedly patchy, ending the growing season in some areas. Fieldwork slowed statewide as soaking rains, overcast, and dreary skies kept soil and grain moistures high. The corn silage and soybean harvests continued, with some reports of farmers combining high moisture corn. Fall crop planting and manure spreading activities advanced as weather permitted.

Topsoil moisture supplies were rated 1 percent very short, 9 percent short, 81 percent adequate and 9 percent surplus. Subsoil moisture supplies were rated 2 percent very short, 11 percent short, 81 percent adequate and 6 percent surplus.

Wisconsin Crop Conditions
Item V-Poor Poor Fair Good Excellent
Corn 2 8 18 49 23
Pasture & Range 5 11 24 43 17
Soybeans 1 6 18 49 26
Source: USDA, NASS, Wisconsin Field Office.

Ninety-six percent of Wisconsin’s corn has reached the dented stage or beyond, 2 days behind the 5-year average. Seventy percent was reported mature, 9 days behind the average. Corn harvested for grain was 9 percent complete, 13 days behind the average. The moisture content of corn harvested for grain was reported at 27 percent. Corn acres harvested for silage was reported at 80 percent complete, 7 days behind the average. Corn condition was 72 percent good to excellent, 3 percentage points above last week.

Leaves were turning color on 97 percent of the state’s soybean acreage. Ninety-two percent was reported dropping leaves, 9 days behind last year, and 3 days behind the average. Soybean harvest was reported at 44 percent complete, equal to last year, but 4 days behind the average. Soybean condition was rated 75 percent good to excellent, 3 percentage points above last week.

Seventy-seven percent of Wisconsin’s winter wheat acres were planted, 6 days ahead of last year. Winter wheat emerged was reported at 53 percent complete, 5 days ahead of last year.

Potato harvest was reported at 92 percent complete.

Pasture condition was 60 percent good to excellent, 6 percentage points above last week.

Fall tillage was reported at 20 percent complete, 2 days behind last year, and 5 days behind the average.

Wisconsin Crop Progress
Crop and percent
of acreage
District Average State Average
Corn Dented 92 81 94 97 96 97 98 99 100 96 94 100 98
Corn Mature 59 27 53 69 78 76 62 89 79 70 58 95 84
Corn Harvested for Grain 4 1 2 10 8 7 7 15 13 9 5 22 26
Corn Harvested for Silage 73 50 71 90 84 82 81 96 91 80 72 95 88
Fall Tillage 21 25 18 13 31 28 14 18 19 20 15 22 25
Potatoes Harvested 78 100 97 99 91 n.a. 86 89 n.a. 92 89 91 n.a.
Soybeans Dropping Leaves 87 87 87 92 94 90 87 98 94 92 86 99 94
Soybeans Harvested 18 27 29 24 47 48 41 65 71 44 32 44 54
Winter Wheat Planted 86 93 75 46 70 87 68 64 77 77 64 67 n.a.
Winter Wheat Emerged 70 83 44 32 45 69 34 35 41 53 37 41 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.

CHIPPEWA-T.P.: Wet soil conditions early in the week slowed harvest activities as did cloudy and drizzly conditions on Friday and Saturday. Soybean harvest started on some fields this week. High moisture corn harvest is also starting.

RUSK-S.V.: Harvesting was slowed down with 2.5 inches of rain this last week.

ASHLAND/IRON-C.B.: Fields are still wet throughout the area. Fieldwork progress is very slow.

SHAWANO-B.R.: Still no killing frost yet in the area. Corn and soybeans are now safe for the most part with maturity near completion. Soybean harvest would be in full swing now if not for some damp days which are stopping the combines. A few fields are now being taken off for high moisture corn. Yields on both corn and soybeans have been disappointing for many. It appears that the late soybeans will yield much better than the early ones. Winter wheat is emerging very well for those that have a field available for planting.

MONROE-B.H.: Rainfall last week slowed soybean harvest to just about a stop. Some folks began harvesting corn for grain where conditions allowed.

PIERCE/ST CROIX-A.M.: Harvest is starting slowly. Some soybeans are coming off fields. Grain corn still has high moisture. Warmer sunny days are needed.

ADAMS/JUNEAU-J.W.: We had a rainy week so that slowed down harvest quite a bit. Corn moisture varies considerably. Some harvested corn was 23-25 percent moisture early in the week while some other was around 30 percent later in the week. Soybean and corn yields are also varying considerably as well.

PORTAGE-J.W.: Cranberry and potato harvests continue. First frost this morning, 29 degrees, latest date in memory. Supplemental feeding of pastured cattle. Silage harvest continues, also manure hauling. Leaf drop rapid on maple trees.

CALUMET-K.P.: Cooler temperatures and a few showers this week. Soybean harvest continues and grain corn harvest has begun. Moisture contents have been good on the grains. Yields vary from fair to excellent. A week ahead of warm, dry weather should allow for good progress toward field work being completed.

FOND DU LAC/WASHINGTON-B.B.: Rains returned totaling over two inches for this period. Field work mostly consisted of manure applications to cut corn fields. Once things dry out the soybean harvest should reach full swing.

VERNON-K.L.: Little to no progress regarding harvesting of corn or soybeans this past week. The weather was cloudy and rainy all week. The rain has helped the alfalfa and pasture green up again. Farmers getting anxious about harvesting crops. No killing frost to date in the county.

COLUMBIA-G.K.: Rain throughout the entire county on Friday and Saturday. Rain amounts varied widely, anywhere from 0.5 inches to 2 inches. Scattered light frost on Monday morning, October 16.

Wisconsin Weekly Weather, Selected Cities
Ending as of 7:00 am on October 15, 2017

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 Oct 14 Mar 1 to Oct 14
Last week Since
Sep 1
Sep 1
dep from normal*
To Date
dep from normal*
Eau Claire 61 41 76 32 51 +1 2669 2516 0.27 4.82 +0.00 32.92 +4.79
Green Bay 63 48 74 44 55 +5 2688 2378 1.11 3.56 -0.53 29.05 +4.64
La Crosse 63 49 78 43 56 +2 3407 2846 1.12 5.84 +1.42 37.58 +9.75
Madison 64 51 76 47 58 +6 2879 2802 1.06 3.29 -0.77 37.05 +9.20
Milwaukee 67 55 78 52 61 +7 3076 n.a. 2.57 3.89 -0.53 33.21 +4.59

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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