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Lake Erie North Shore - September 2011:
Challenging conditions comprising below-normal temperatures and above-normal rainfall characterized
the month of September. Accumulated growing degree days remain only slightly ahead of normal values
(Fig 1). Both daily maximum and minimum temperatures averaged below normal for the month (Fig 2 and
3).
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1000
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1800
GD
D
April-September 2011 Accumulated Base 10°C Growing Degree DaysCompared to 2010, 2009 and the 30-Year Normal
Colchester 2011
Kingsville 2011
Cedar Springs 2011
Colchester 2010
Kingsville 2010
Cedar Springs 2010
Colchester 2009
Kingsville 2009
Cedar Springs 2009
Normal Accumulation (Kingsville EC)
Figure 1: Growing Degree Days
Extremely wet conditions persisted in the Lake Erie North Shore appellation. The month of September
brought an above-normal number of rain events: 8 days above normal in Colchester, 6 in Kingsville and 5
in Cedar Springs (Fig 4). These events resulted in highly above-normal rainfall for the month: 227% of
normal for Colchester, 185% for Kingsville and 156% for Cedar Springs (Fig 5).
Apr May June July Aug Sept Oct
Normal (Kingsville EC) 11.8 18.9 23.8 26.5 25.5 21.6 14.9
Colchester 10.9 18.3 24.7 29.1 26.5 20.8
Kingsville 11.3 18.4 25.0 29.8 26.8 21.3
Cedar Springs 9.7 16.9 23.1 27.9 25.9 20.3
Normal
Above-normal
Below-normal
LENS: Average Daily Maximums
Compared to Normal (2011)
Figure 2: Maximum Temperatures
Apr May June July Aug Sept Oct
Normal (Kingsville EC) 2.9 9.5 15.1 17.8 16.8 12.9 6.6
Colchester 3.3 10.2 14.9 19.2 16.1 12.5
Kingsville 3.0 10.0 14.8 18.8 14.8 11.9
Cedar Springs 2.4 9.2 14.2 19.4 16.1 12.9
Normal
Above-normal
Below-normal
LENS: Average Daily Minimums
Compared to Normal (2011)
Figure 3: Minimum Temperatures
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Colchester Kingsville Cedar Springs
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mb
er o
f D
ays
LENS: Number of Days with Rain in September 2011 Compared to the 30-Year Normal
2011
Normal (Kingsville EC)
Figure 4: Days with Rainfall
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Colchester Kingsville Cedar Springs Normal (Kingsville EC)
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infa
ll (m
m)
LENS: Total Accumulated Rainfall in April-September 2011 Compared to Growing Season Monthly Normals
October
September
August
July
June
May
April
Figure 5: Monthly Rainfall
