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Angie Peltier


Angie Peltier
Former Extension Educator, Commercial Agriculture



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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.
Figure. Illinois drought monitor map for the week ending December 4th, 2012 (Source: U.S. Drought Monitor).
click image to view 2 more

November 2012 Weather and Drought Summary


Precipitation

Total rainfall in November at the NWIARDC in Monmouth was down 1.3 inches, leaving the total rainfall accumulation since January 1st at 23.9 inches. The total departure from normal rainfall was 12.5 inches for the year (Table).

Each Thursday, the U.S. Drought Monitor releases a map detailing drought conditions across the 50 United States and Puerto Rico. This map summarizes all of the weather data that federal and academic scientists have compiled throughout the week ending on that Tuesday (two days before the report is generated).

In the most recent weekly drought monitor report released December 6th, summarizing the week ending December 4th, 52 percent of the total land area is suffering from at least moderate drought conditions.

In Illinois, 78 percent of the state's land area is abnormally dry, and 11 percent of the state is under severe drought conditions (Figure).

Air Temperature

Monthly average high and low temperatures were near monthly normals (Table).

Soil Temperature

Fall tillage operations and N application timing may influence how well N is retained for next spring's corn. In November, high soil temperatures on bare soil continued to remain high, with 9 days surpassing that 'magic' value of 50 °F that producers strive for in order to maximize N retention with fall N applications (Figure and Table). Soil under sod was better insulated from day to day temperature fluxuations, with the high temperature on only 2 days surpassing the 50 °F threshold (Figure).

NOVEMBER 2012 TEMPERATURES

Soil Temperature

Air Temp

4" (Bare)

4" (Sod)

(°F)

-------------------(°F)-----------------

Monthly average high

50.1

47.5

45.7

Monthly average low

29.0

39.6

43.2

Observed high (date)

73 (11)

60 (11)

53 (12)

Observed low (date)

9 (27)

31 (33)

35 (29)

2012 PRECIPITATION (in inches)

Since January 1

Month

Monthly Total

Monthly departure from average

Total accumulation

Total departure

January

0.89

-0.63

0.89

-0.63

February

1.48

-0.06

2.37

-0.69

March

1.63

-0.90

4.00

-1.59

April

1.90

-1.98

5.90

-3.57

May

3.78

-0.99

9.68

-4.56

June

1.90

-2.59

11.58

-7.15

July

0.09

-4.02

11.67

-11.17

August

3.28

-1.46

14.95

-12.63

September

4.60

+0.86

19.55

-11.77

October

3.34

+0.54

22.89

-11.23

November

0.98

-1.30

23.87

-12.53


 



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