Ontario Canada weather data
Ontario Canada Weather Data, Plant Disease Risk and Degree-Day Models
APRSWXNET Network - other tables for ON include: All Networks, METAR, see our homepage.
Interactive degree-day maps
Ontario Canada base 32 degree-days to date
Degree-day & Phenology Model Calculator
 Also try the full-featured calculator/DD model
Select model: 
Thresholds: lower: °F   upper: °F (or celsius °C:)
  Calc. method:
Start (biofix) date:   End date:   
 Forecast type:   
Statewide Disease Alert Maps: tomato-potato Smith late blight, Tomcast DSV, fire blight, soybean rust
Disease Alert Movies: fireblight: 2010 2011 2012 2013
Data table - to SORT click on headers:
# Location linked to
hourly weather,
plant disease models and
forecasts
using
"Mypest Page"
 
County
Re-
cent
data QA
Fore-
cast
based
virt
data
Nearby
station
based
virt
data

Station code,
links to
NWS recent
weather

Links to
NWS fore-
casts
 
Net-
work
Elev. (ft)
 
Lat./ Long.
(Dec. Deg.)
 
Max-min temperature data and degree-days
(click radio button to calc.)

10 yr
avgs

30 yr
avgs

nmme
fcast

cfs
fcast
1 Aurora VE3CGR6
78
na
na
na
na
AU023
map
zone
digital
CWOP/APRSWX
900
 43.99500
-79.46333
2018
2017
-
-
-
-
2 Beamsville CW2265 Ontario
87
na
na
na
na
C2265
map
zone
digital
CWOP/APRSWX
299
 43.17611
-79.47222
2018
2017
2016
2015
2014
2013
2012
2011
2009
2008
2007
-
-
-
-
3 Brampton VE3FWM
90
na
na
na
na
AV116
map
zone
digital
CWOP/APRSWX
643
 43.71417
-79.69806
2018
2017
-
-
-
-
4 Campbellford VE3KHV Ontario
91
na
na
na
na
AS831
map
zone
digital
CWOP/APRSWX
551
 44.34778
-77.78083
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
-
-
-
-
5 Carleton Place CW3134 Ontario
95
na
na
na
na
C3134
map
zone
digital
CWOP/APRSWX
469
 45.09417
-76.11778
2018
2017
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
6 Carp VA3KA Ontario
98
na
na
na
na
AR878
map
zone
digital
CWOP/APRSWX
466
 45.27667
-76.09306
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
7 Cherry Valley VA3JLF1 Ontario
88
na
na
na
na
AT413
map
zone
digital
CWOP/APRSWX
131
 43.93389
-77.16000
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
8 Devlin DW4685 Koochiching
94
na
na
na
na
D4685
map
zone
digital
CWOP/APRSWX
1152
 48.62056
-93.60694
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
9 Dryden DW5060 Ontario
89
na
na
na
na
D5060
map
forecast
digital
CWOP/APRSWX
1299
 49.77444
-92.83806
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
10 Komoka DW3930 Ontario
95
na
na
na
na
D3930
map
zone
digital
CWOP/APRSWX
801
 42.95417
-81.43472
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
11 Stayner DW6691
0
na
na
na
na
D6691
map
forecast
digital
CWOP/APRSWX
725
 44.41361
-80.09556
2018
2017
-
-
-
-
12 Ottawa DW6828
94
na
na
na
na
D6828
map
zone
digital
CWOP/APRSWX
226
 45.46917
-75.53278
2018
2017
-
-
-
-
13 Kanata DW7146
92
na
na
na
na
D7146
map
zone
digital
CWOP/APRSWX
394
 45.30611
-75.88806
2018
2017
-
-
-
-
14 Owen Sound DW7232
90
na
na
na
na
D7232
map
forecast
digital
CWOP/APRSWX
1007
 44.57944
-80.96944
2018
2017
-
-
-
-
15 Oshawa DW7240
90
na
na
na
na
D7240
map
zone
digital
CWOP/APRSWX
358
 43.89667
-78.87389
2018
2017
-
-
-
-
16 Newmarket DW7492
94
na
na
na
na
D7492
map
zone
digital
CWOP/APRSWX
912
 44.03528
-79.43500
2018
2017
-
-
-
-
17 Orillia DW7524
0
na
na
na
na
D7524
map
forecast
digital
CWOP/APRSWX
702
 44.63111
-79.43944
2018
2017
-
-
-
-
18 Woodbridge DW8043
88
na
na
na
na
D8043
map
zone
digital
CWOP/APRSWX
584
 43.78944
-79.61194
2018
2017
-
-
-
-
19 Barrie DW8291
93
na
na
na
na
D8291
map
zone
digital
CWOP/APRSWX
853
 44.39944
-79.65806
2018
2017
-
-
-
-
20 Toronto DW9501
92
na
na
na
na
D9501
map
zone
digital
CWOP/APRSWX
604
 43.74083
-79.43306
2018
2017
-
-
-
-
21 Hamilton DW9809
89
na
na
na
na
D9809
map
zone
digital
CWOP/APRSWX
305
 43.25278
-79.92250
2018
2017
-
-
-
-
22 Elgin DW0331 Ontario
98
na
na
na
na
D0331
map
zone
digital
CWOP/APRSWX
367
 44.50861
-76.24333
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
-
-
-
-
23 Pickering EW0314
60
na
na
na
na
E0314
map
zone
digital
CWOP/APRSWX
279
 43.83722
-79.08056
2018
2017
-
-
-
-
24 Oakville EW0417
91
na
na
na
na
E0417
map
zone
digital
CWOP/APRSWX
586
 43.38278
-79.73472
2018
2017
-
-
-
-
25 Plympton EW1160
96
na
na
na
na
E1160
map
zone
digital
CWOP/APRSWX
599
 43.06611
-82.15000
2018
2017
-
-
-
-
26 Campbellford EW1385
88
na
na
na
na
E1385
map
zone
digital
CWOP/APRSWX
515
 44.30778
-77.79028
2018
2017
-
-
-
-
27 Toronto EW1575
3
na
na
na
na
E1575
map
zone
digital
CWOP/APRSWX
459
 43.72861
-79.27194
2018
2017
-
-
-
-
28 Beamsville EW2219
87
na
na
na
na
E2219
map
zone
digital
CWOP/APRSWX
597
 43.10250
-79.42000
2018
2017
-
-
-
-
29 Stittsville EW2262
92
na
na
na
na
E2262
map
zone
digital
CWOP/APRSWX
387
 45.25833
-75.92806
2018
2017
-
-
-
-
30 Orleans EW2286
0
na
na
na
na
E2286
map
zone
digital
CWOP/APRSWX
312
 45.45861
-75.48194
2018
2017
-
-
-
-
31 Windsor EW2413 Wayne County
14
na
na
na
na
E2413
map
zone
digital
CWOP/APRSWX
66
 42.26222
-83.07278
2018
2017
-
AVG nmme cfs
32 Rondeau EW2414
59
na
na
na
na
E2414
map
zone
digital
CWOP/APRSWX
72
 42.28167
-81.84361
2018
2017
-
-
-
-
33 Owen Sound EW2417
57
na
na
na
na
E2417
map
forecast
digital
CWOP/APRSWX
180
 44.58556
-80.83472
2018
2017
-
-
-
-
34 New Tecumseth EW2419
99
na
na
na
na
E2419
map
zone
digital
CWOP/APRSWX
754
 44.15722
-79.89861
2018
2017
-
-
-
-
35 Roseneath EW2420
94
na
na
na
na
E2420
map
zone
digital
CWOP/APRSWX
361
 44.15111
-78.02361
2018
2017
-
-
-
-
36 Lakefield EW2421
93
na
na
na
na
E2421
map
forecast
digital
CWOP/APRSWX
410
 44.62583
-78.04778
2018
2017
-
-
-
-
37 Bar River EW2428 Chippewa Cou
96
na
na
na
na
E2428
map
zone
digital
CWOP/APRSWX
325
 46.44000
-84.01806
2018
2017
-
-
-
-
38 Bonnechere EW2429
99
na
na
na
na
E2429
map
forecast
digital
CWOP/APRSWX
886
 45.65778
-77.58028
2018
2017
-
-
-
-
39 ThunderBay EW2438
96
na
na
na
na
E2438
map
zone
digital
CWOP/APRSWX
328
 48.40389
-89.62528
2018
2017
-
-
-
-
40 Sioux Narrows EW2440
92
na
na
na
na
E2440
map
zone
digital
CWOP/APRSWX
732
 49.42028
-94.08333
2018
2017
-
-
-
-
41 Caribou Falls EW2448
93
na
na
na
na
E2448
map
forecast
digital
CWOP/APRSWX
984
 50.25972
-94.95972
2018
2017
-
-
-
-
42 Bradford EW2481
92
na
na
na
na
E2481
map
zone
digital
CWOP/APRSWX
864
 44.09861
-79.58556
2018
2017
-
-
-
-
43 Acton EW2592
94
na
na
na
na
E2592
map
forecast
digital
CWOP/APRSWX
1260
 43.64139
-80.07500
2018
2017
2016
2015
-
-
-
-
44 Kingsville EW2832
83
na
na
na
na
E2832
map
zone
digital
CWOP/APRSWX
614
 42.03194
-82.70028
2018
2017
-
-
-
-
45 Perth EW3076
90
na
na
na
na
E3076
map
zone
digital
CWOP/APRSWX
476
 44.92056
-76.28500
2018
2017
-
-
-
-
46 Ottawa EW3406
95
na
na
na
na
E3406
map
zone
digital
CWOP/APRSWX
331
 45.35778
-75.71611
2018
2017
-
-
-
-
47 Barrie EW3552
100
na
na
na
na
E3552
map
zone
digital
CWOP/APRSWX
1033
 44.34111
-79.72778
2018
2017
-
-
-
-
48 Hamilton EW3591
88
na
na
na
na
E3591
map
zone
digital
CWOP/APRSWX
715
 43.21361
-79.89139
2018
2017
-
-
-
-
49 Ottawa EW3670
97
na
na
na
na
E3670
map
zone
digital
CWOP/APRSWX
256
 45.40417
-75.68944
2018
2017
2016
2015
-
-
-
-
50 Toronto EW4242
68
na
na
na
na
E4242
map
zone
digital
CWOP/APRSWX
499
 43.75778
-79.37194
2018
2017
-
-
-
-
51 Ridgeway EW5040 Erie County
91
na
na
na
na
E5040
map
zone
digital
CWOP/APRSWX
594
 42.89444
-79.01944
2018
2017
-
-
-
-
52 Cambridge EW5149
77
na
na
na
na
E5149
map
zone
digital
CWOP/APRSWX
948
 43.35139
-80.30056
2018
2017
-
-
-
-
53 Barrie EW5347
0
na
na
na
na
E5347
map
zone
digital
CWOP/APRSWX
778
 44.37861
-79.69472
2018
2017
-
-
-
-
54 Owen Sound EW5425
79
na
na
na
na
E5425
map
zone
digital
CWOP/APRSWX
581
 44.55111
-80.93583
2018
2017
-
-
-
-
55 Gorrie EW5466
98
na
na
na
na
E5466
map
zone
digital
CWOP/APRSWX
1181
 43.84111
-81.07611
2018
2017
-
-
-
-
56 Milton EW5954
95
na
na
na
na
E5954
map
zone
digital
CWOP/APRSWX
2099
 43.52250
-79.88778
2018
2017
-
-
-
-
57 Westport EW5998
95
na
na
na
na
E5998
map
zone
digital
CWOP/APRSWX
433
 44.67167
-76.36306
2018
2017
-
-
-
-
58 Thornton EW6316
38
na
na
na
na
E6316
map
zone
digital
CWOP/APRSWX
1132
 44.25694
-79.76944
2018
2017
-
-
-
-
59 Sudbury EW6694
99
na
na
na
na
E6694
map
forecast
digital
CWOP/APRSWX
777
 46.43194
-80.92889
2018
2017
-
-
-
-
60 Ottawa EW6946
94
na
na
na
na
E6946
map
zone
digital
CWOP/APRSWX
312
 45.28806
-75.75389
2018
2017
-
-
-
-
61 Toronto EW7059
90
na
na
na
na
E7059
map
zone
digital
CWOP/APRSWX
394
 43.64861
-79.50944
2018
2017
-
-
-
-
62 Shebandowan EW7934
92
na
na
na
na
E7934
map
zone
digital
CWOP/APRSWX
1489
 48.62722
-90.18778
2018
2017
-
-
-
-
63 Ottawa EW7969
94
na
na
na
na
E7969
map
zone
digital
CWOP/APRSWX
380
 45.29500
-75.87056
2018
2017
-
-
-
-
64 Exeter VA3HRA Ontario
40
na
na
na
na
AR297
map
zone
digital
CWOP/APRSWX
886
 43.34278
-81.48306
2018
2017
2016
2015
2014
2013
2012
2007
-
-
-
-
65 Fort Erie DW2224 Erie
99
na
na
na
na
D2224
map
zone
digital
CWOP/APRSWX
620
 42.88056
-78.98667
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
66 Ft Frances CW1890 Koochiching
97
na
na
na
na
C1890
map
zone
digital
CWOP/APRSWX
1112
 48.61222
-93.41417
2018
2017
2016
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
67 Grimsby CW0156 Ontario
85
na
na
na
na
C0156
map
zone
digital
CWOP/APRSWX
276
 43.20417
-79.57333
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
68 Leduc DW2483 Ontario
99
na
na
na
na
D2483
map
forecast
digital
CWOP/APRSWX
2402
 53.25667
-113.57500
2018
2017
2015
2014
2013
2012
-
-
-
-
69 London VE3TEJ Ontario
96
na
na
na
na
AS442
map
zone
digital
CWOP/APRSWX
889
 42.93639
-81.24028
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
70 London VE3ZEB1 Ontario
0
na
na
na
na
AT872
map
zone
digital
CWOP/APRSWX
820
 42.96611
-81.24778
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
71 Mattawa VE3CEA13
0
na
na
na
na
AU770
map
forecast
digital
CWOP/APRSWX
643
 46.31278
-78.68000
2018
2017
-
-
-
-
72 Millbrook DW5727 Ontario
93
na
na
na
na
D5727
map
zone
digital
CWOP/APRSWX
801
 44.15056
-78.44556
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
73 Mississauga VE3GOP
90
na
na
na
na
AS441
map
zone
digital
CWOP/APRSWX
633
 43.56194
-79.76528
2018
2017
2012
2011
2010
2009
2008
-
-
-
-
74 Newmanville VE3BSM Saint Lawren
91
na
na
na
na
AR801
map
zone
digital
CWOP/APRSWX
381
 44.92806
-75.75778
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
75 Niagaraon-the-Lk VE3X Ontario
93
na
na
na
na
AS672
map
zone
digital
CWOP/APRSWX
322
 43.21944
-79.15056
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
76 North York CW4885 Ontario
0
na
na
na
na
C4885
map
zone
digital
CWOP/APRSWX
647
 43.75611
-79.45528
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
77 Petawawa VE3YF Ontario
96
na
na
na
na
AR943
map
forecast
digital
CWOP/APRSWX
463
 45.89361
-77.28306
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
78 Read VE3GSI Ontario
90
na
na
na
na
AP316
map
zone
digital
CWOP/APRSWX
476
 44.34611
-77.21361
2018
2017
2016
2015
2014
2013
2012
2011
2009
2008
-
-
-
-
79 Sioux Narrows DW5155 Ontario
82
na
na
na
na
D5155
map
zone
digital
CWOP/APRSWX
1066
 49.38194
-94.11583
2018
2017
2016
2015
2014
2013
-
-
-
-
80 Stouffville DW6304 Ontario
95
na
na
na
na
D6304
map
zone
digital
CWOP/APRSWX
955
 43.97861
-79.23667
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
81 Sudbury CW6803 Ontario
100
na
na
na
na
C6803
map
forecast
digital
CWOP/APRSWX
984
 46.65278
-81.02639
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
82 Tavistock DW0200 Ontario
92
na
na
na
na
D0200
map
zone
digital
CWOP/APRSWX
1096
 43.33500
-80.75528
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
-
-
-
-
83 Thunder Bay VA3ROM Ontario
99
na
na
na
na
AS381
map
zone
digital
CWOP/APRSWX
722
 48.45250
-89.20944
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
84 Thunder Bay VE3RRP
98
na
na
na
na
AU116
map
zone
digital
CWOP/APRSWX
1476
 48.57778
-89.28972
2018
2017
-
-
-
-
85 Tiverton CW8209 Ontario
37
na
na
na
na
C8209
map
zone
digital
CWOP/APRSWX
768
 44.32167
-81.52194
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
86 Unionville CW8618 Ontario
95
na
na
na
na
C8618
map
zone
digital
CWOP/APRSWX
590
 43.87528
-79.31278
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
-
-
-
-
87 VA3DLF Kingston
42
na
na
na
na
AV122
map
zone
digital
CWOP/APRSWX
524
 44.33222
-76.78917
2018
2017
-
-
-
-
88 VA3NNW13 Waterloo
91
na
na
na
na
AU278
map
zone
digital
CWOP/APRSWX
1017
 43.45111
-80.56611
2018
2017
-
-
-
-
89 VA3QB Fergus
83
na
na
na
na
AV202
map
forecast
digital
CWOP/APRSWX
1345
 43.69611
-80.38611
2018
2017
-
-
-
-
90 Kitchner VE3KSR Ontario
50
na
na
na
na
AP321
map
zone
digital
CWOP/APRSWX
1248
 43.40417
-80.63333
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
91 Walkerton DW5903 Ontario
96
na
na
na
na
D5903
map
zone
digital
CWOP/APRSWX
906
 44.10000
-81.10000
2018
2017
2015
2014
2013
2012
-
-
-
-
92 Wasaga Beach DW3238 Ontario
100
na
na
na
na
D3238
map
forecast
digital
CWOP/APRSWX
591
 44.49917
-80.04722
2018
2017
2016
2015
2014
2013
2012
-
-
-
-
93 Westport DW0340 Ontario
98
na
na
na
na
D0340
map
zone
digital
CWOP/APRSWX
479
 44.59278
-76.40778
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
-
-
-
-
94 Whitby CW1837 Ontario
93
na
na
na
na
C1837
map
zone
digital
CWOP/APRSWX
361
 43.90778
-78.92861
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
-
-
-
-
95 Wolfe Island DW4596 Jefferson
95
na
na
na
na
D4596
map
zone
digital
CWOP/APRSWX
267
 44.22194
-76.19222
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
96 Woodstock DW4653 Ontario
66
na
na
na
na
D4653
map
zone
digital
CWOP/APRSWX
1033
 43.17250
-80.74500
2018
2017
2016
2015
2014
2013
2012
-
-
-
-

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National Plant Diagnostics Network Integrated Plant Protection Center at OSU Oregon State University The PRISM Group at OSU Fox Weather, LLC University of Utah Mesowest Western
 Region Pest Management Center National
 Institute of Food and Agriculture
All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Integrated Plant Protection Center at Oregon State University with support from the USDA National Plant Diagnostic Network, various USDA NIFA and RMA grants, and USDA IPM Centers - Western Region. Climate map data provided by OSU PRISM Group, realtime public weather data provided by U. Utah Mesowest and various other networks.
This site on-line since April 5, 1996; last update Dec. 27, 2017
Contact Len Coop, OSU IPPC and Horticulture Dept. at coopl@science.oregonstate.edu or 541-737-5523 if you have any questions about this information.