XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2011
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2011 :   
 TEMPERATURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Record High Temperature : 17.8
18.0
27.0
30.6
37.2
36.1
41.1
40.6
38.3
30.4
24.4
21.0
41.1
  Highest Temperature : 12.2
12.3
15.9
25.1
33.1
34.0
38.5
31.7
31.3
28.2
18.1
13.6
38.5
  Date : 1st
18th
18th
27th
31st
8th
21st
1st
2nd
9th
2nd+
4th
7/21
  Time : 1345
1345
1546
1529
1414
1526
1335
1221
1434
1520
1421
1245
1335
   2010 :
7.1
6.4
19.3
28.5 31.6
30.3 35.0
34.2
32.0 23.9 15.8 11.6
35.0
  Average Maximum Temperature : -2.1 0.4
4.6
11.4
17.9
24.7
30.5
27.0
22.2
15.5
11.5
5.2
14.1
  Departure from Normal  :
-0.1
+1.6
+0.4
+0.3
-0.6
+0.8
+3.8
+1.5
+1.8
+2.1
+3.5
+4.4
+1.7
  Normal  :
-2.0
-1.2
4.2
11.1
18.5
23.9
26.7
25.5
20.4
13.4
7.0
0.8
12.4
   2010 :
-1.2 0.6
8.6
16.5
21.3
24.4
29.0 27.5
21.4
15.2 8.8
-0.4
14.3
  Average Temperature : (°C)
-6.1
-4.0
0.2
6.8
13.3
19.4
24.8
21.8
17.9
11.1
7.5
1.7
9.5
  Normal  :
-5.5
-4.9
0.1
6.3
12.8
18.4
21.4
20.5
15.6
9.3
3.7
-2.6
7.9
  Average Minimum Temperature : -10.1
-8.5
-4.1
2.3
8.7
14.2
19.1
16.7
13.6
6.8
3.5
-1.9
5.0
  Normal  :
-9.0
-8.5
-4.0
1.5
7.1
12.8
16.1
15.5
11.1
5.1
0.4
-6.0
3.5
  Lowest Temperature : -22.6
-17.9
-12.5
-1.3
3.9
7.1
11.2
11.4
4.4
-2.7
-3.3
-10.0
-22.6
  Date : 24th
10th
25th+
7th
3rd
3rd
1st
29th
16th
30th
18th
29th
1/24
  Time : 0537 0642
0653
0336
0903
0419
0552
0452
0726
0625
0732
0321
0537
   2010 :
-18.1 -11.8 -5.6
-0.3
-0.1
7.4
9.4
10.1 6.3
1.3 -3.0 -11.9
-18.1
  Record Low Temperature : -27.8 -29.4
-22.8
-17.2
-4.4
1.7
5.6
1.1
-0.6
-9.4
-15.6
-28.9
-29.4
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 RELATIVE HUMIDITY : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Relative Humidity : 96
98
99
100
100
98
98
98
98
100
99
99
100
  Date : 4th+
28th
10th
6th+
14th+
22nd
29th
22nd
2nd+
26th
29th
6th
4/6+
  Time : 0327
0557
1407
0006
2300
0925
0045
0223
0022
1403
0432
1134
0006
   2010 :
99
98
100
98
97
98
96 98
100
99 100 96
100
  Average Relative Humidity : (%)
77
74
73
75
79
72
65
73
79
77
74
80
75
  Departure from Normal  :
+3
+5
+1
+13
+11
+4
-3 +1
+2
0
-5 +2
+3
  Normal  :
74
69
72
62
68
68
68
72
77
77
79
80
72
   2010 :
79
77
68
59
69
75
72
76
77
73 78 78
73
  Lowest Relative Humidity : 42
38
25
26
21
23
23
26
36
41
38
45
21
  Date : 24th 23rd
28th
2nd
5th
3rd
4th
17th
15th
24th
16th
8th
5/5
  Time : 1320 1057
1324
1233
1533
1112
1542
1850
1252
1622
1542
1338
1533
   2010 :
42
30
11
15
27
23
33
30
32
30 42 46
11
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 DEW POINT : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Dew Point : 11.5
7.6
11.3
18.5
24.8
25.6
25.8
26.1
24.7
18.5
13.6
11.4
26.1
  Date : 1st
18th
18th
27th
31st
8th
21st
1st
2nd
9th
8th
15th
8/1
  Time : 1342
0757
0458
1548
1156
1354
1936
1324
1308
1254
1102
1238
1324
   2010 :
6.5
1.1
6.6
15.8
20.4
24.4
26.9 25.4
24.1
17.3 13.0 10.9 26.9
  Average Dew Point : (°C) -9.2
-8.3
-4.0
2.7
9.7
14.0
16.7
16.7
14.6
7.6
3.6
-1.4
5.2
  Departure from Normal  :
+0.2
+1.3
+0.3
+2.4
+2.7
+1.7
+1.4
+1.4
+3.1
+2.1
+3.2
+4.2
+2.0
  Normal : -9.4
-9.6
-4.3
0.3
7.0
12.3
15.3
15.3
11.5
5.5
0.4
-5.6
3.2
   2010 :
-7.1 -6.4 -1.9 1.9 9.7 15.2
18.3 18.2 12.6
6.1 1.5 -6.2 5.2
  Lowest Dew Point : -26.0
-20.8
-18.7
-8.2
-5.3
-0.6
1.9
7.1
0.4
-3.0
-7.3
-13.2
-26.0
  Date : 24th
10th
2nd
2nd
5th
3rd
14th
22nd
15th
30th
17th
28th
1/24
  Time : 0537
0704
1636
1233
1533
1127
1950
1647
1044
0625
1241
1730
0537
   2010 :
-20.7
-14.6
-17.0
-9.7
-7.3 4.4 5.4 7.4
3.4
-5.6 -10.0 -16.9
-20.7
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 PRECIPITATION : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Precipitation : (mm)
52.4
84.7
138.8
144.5
170.8
58.1
51.9
73.4
137.9
110.2
106.3
93.3
1222.3
  % of Normal  :
73%
158%
222%
189%
224%
72%
67%
99%
147%
147%
152%
127%
138%
  Normal :
71.9
53.6
62.6
76.4
76.3
80.7
77.1
74.2
93.5
74.9
69.9
73.5
884.6
   2010 :
40.2 53.8 71.3 65.5 66.4 157.8 76.7 93.7 92.8
91.7 88.5 34.2 932.6
  Record Precipitation in 1 Day :
52.1
40.6
51.6
41.9
68.6
78.0
72.6
90.2
77.0
115.3
60.2
61.0
115.3
  Most Precipitation in 1 Day :
12.7
22.5
35.8
23.1
29.6
21.8
31.0
29.8
24.8
17.8
45.3
29.8
45.3
  Date :
11th
2nd
5th
16th
25th
4th
24th
9th
1st
20th
29th
5th
11/29
   2010 :
11.7 14.3 21.0 24.8 18.4 37.8 30.8 49.6 29.1
12.7 25.0 17.0 49.6
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 RAINFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Rainfall : (mm)
13.7
23.8
90.8
133.3
170.8
58.1
51.9
73.4
137.9
110.2
103.5
76.3
1043.7
  % of Normal  :
47%
93%
205%
195%
224%
72%
67%
99%
147%
147%
162%
176%
139%
  Normal : 29.3
25.5
44.2
68.2 76.1
80.7
77.1
74.2
93.5
74.7
64.0
43.3
750.8
   2010 :
22.0 0.6 68.4 65.5 66.4 157.8
76.7 93.7 92.8
91.7 88.5 27.0 851.1
  Record Rainfall in 1 Day : 52.1
40.6
51.6
35.6
68.6
78.0
72.6
90.2
77.0
115.3
60.2
57.4
115.3
  Most Rainfall in 1 Day : 11.2
21.8
35.8
23.1
29.6
21.8
31.0
29.8
24.8
17.8
45.3
23.4
45.3
  Date : 1st
28th
5th
16th
25th
4th
24th
9th
1st
20th
29th
5th
11/29
   2010 :
11.7 0.4 21.0 24.8 18.4 37.8
30.8 49.6 29.1
12.7 25.0 13.2 49.6
  High Rain Rate : (mm/h) 11.2
21.1
8.6
174.2
116.1
112.5
109.2
92.7
178.3
22.1
15.0
21.1
178.3
  Date : 1st28th
10th
26th
29th
4th
24th
18th
1st
12th
14th
15th
9/1
  Time : 08250453
1724
1111
2056
1102
0215
1641
0245
1823
1647
1333
0245
   2010 :
15.2 0.2 21.1 209.0 221.7 116.1
252.2 121.9 146.3 61.0 39.9 9.7 252.2
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 SNOWFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Snowfall : (cm)
46.2
55.8
31.4
3.4
-
-
-
-
-
-
0.6
6.4
143.8
  % of Normal  :
93%
171%
174%
42%
0%




0%
10%
19%
97%
  Normal :
49.6
32.6
18.0
8.1
0.2
0
0
0
0
0.1
6.0
33.4
148.0
   2010 :
32.2 47.0 0.2 TR - -
- - -
- TR 4.8 84.2
  Record Snowfall in 1 Day : 50.8
40.6
38.1
27.8
2.5
-
-
-
-
11.4
22.9
61.0
61.0
  Most Snowfall in 1 Day : 10.4
12.2
20.4
2.0






0.4
3.0
20.4
  Date : 11th
2nd
23rd
3rd






30th
27th
3/23
   2010 :
9.0 13.8 0.2 TR - -
- - -
- TR 2.0 13.8
  Highest Snow on Ground : 27
40
20
2






TR
3
40
  Date : 16th
6th
23rd
3rd






11th+
30th
2/6
   2010 : 17 32 20 0 0 -
- - -
0 0 4 32
  Average Snow on Ground : 16
25
8
TR





 
0
TR
4
   2010 :
7 7 5 0 0 -
- - -
- 0 2 2
  End of Month Snw on Gnd : 23
18
3
0






0
0
--
   2010 :
3 27 0 0 0 -
- - -
- 0 TR --
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 WIND : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Wind Speed : (kt)
27
34
28
48
26
28
17
24
30
30
32
29
48
  Highest Wind Direction : 020
070
060
230
040
360
020
020
020
080
020
200
230
  Date : 11th
2nd
23rd+
28th
15th
4th
24th
28th
30th
19th
23rd
19th
4/28
  Time : 2332
0249
1229
1031
1154
1107
1117
0814
2205
2144
0212
0430
1031
   2010 :
25 30 32 26 29 28 17 24 25 32 24 37 37
  Average Wind Speed : (kt)













   2010 :













  Prevailing Wind Direction :













   2010 :













 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 PRESSURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Pressure :
30.56
30.49
30.68
30.45
30.19
30.22
30.08
30.14
30.40
30.41
30.43
30.55
30.68
  Date :
31st 15th
3rd
15th
2nd
3rd
13th+
31st
17th
8th
5th
3rd
3/3
  Time :
0845
1100
0815
0900
2245
0915
0930
0715
1045
0930
1115
0415
0815
   2010 :
30.44 30.43 30.35 30.57 30.38 30.17 30.30 30.22 30.18 30.31 30.52 30.31 30.57
  Average Pressure : (")
29.98
29.98
30.09
29.85
29.91
29.87
29.87
29.82
29.94
29.94
29.97
30.07
29.94
  Departure from Normal  :
-0.02 -0.06 +0.10 -0.13 -0.05 -0.09 -0.11 -0.20 -0.10 -0.11 -0.05 +0.04 -0.07
  Normal :
30.00
30.04
29.99
29.98
29.96
29.96
29.98
30.02
30.04
30.05
30.02
30.03
30.01
   2010 :
30.00 29.88 29.95 29.90 29.94 29.85 29.90 29.91 29.90
29.89 30.03 29.94 29.92
  Lowest Pressure :
29.30
29.23
29.37
29.17
29.52
29.50
29.58
29.45
29.41
29.13
29.43
29.32
29.13
  Date :
7th
14th
11th
4th
23rd
24th
21st
9th
30th
20th
30th
27th
10/20
  Time :
0100 0315
0115
1730
2115
0400
1230
1345
0145
0545
0500
2000
0545
   2010 :
29.08 29.43 29.65 29.30 29.38 29.30 29.65 29.57 29.42 29.35 29.21 29.16 29.08
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Thunderstorm :
-
1
-
6
5
8
4
9
6
2
-
-
40
   2010 :
- - - 2 6 11 9 4 2
2
- - 36
  Funnel Cloud/Waterspout :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Rain :
2
6
12
19
22
13
8
14
17
20
10
15
158
   2010 :
2 2 10 13 15 19 16 14 15
18 12 4 140
  Drizzle :
2
-
4
1
7
-
-
1
3
7
2
5
32
   2010 :
1 1 2 - 3 1 - 1 3
- - - 12
  Hail :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Freezing Rain : 1
-
-
-
-
-
-
-
-
-
-
-
1
   2010 :
- - - - - - - - -
- - 1 1
  Freezing Drizzle : 1
-
-
-
-
-
-
-
-
-
-
2
3
   2010 :
3 3 - - - - - - -
- - - 6
  Ice Pellets :
-
-
4
-
-
-
-
-
-
-
1
-
5
   2010 :
- - 1 1 - - - - -
- 1 - 3
  Snow : 26
18
11
6
-
-
-
-
-
-
4
12
77
   2010 :
20 21 4 3 - - - - -
- 2 25 75
  Snow Pellets :  -
1
1
2

-
-
-
-
-
-
-
4
   2010 :
- 1 - - - -
- - -
- - - 1
  Snow Grains : 1
-
2
-

-
-
-
-
-
-
-
3
   2010 :
- 2 - - - -
- - -
- - - 2
  Ice Crystals : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Fog : -
1
5
10
10
2
1
-
4
2
4
4
43
   2010 :
3 - 6 4 2 7 - 1 3
2 5 - 33
  Freezing Fog : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Ice Fog : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Blowing Snow : 2
2
-
-
-
-
-
-
-
-
-
-
4
   2010 :
1 - - - - - - - -
- - 1 2
  Haze : -
1
-
2
6
5
2
2
3
1
1
2
25
   2010 :
1 - 1 2 1 4 8 5 -
- 1 2 25
  Smoke : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Blowing Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
  Blowing Sand : -
-
-
-
-
-
-
-
-
-
-
-
0
   2010 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Aurora : -
-
-
-
-
-
-
-
-

 -
 -
0
   2010 :
- - - - - - - - -
- - - 0
  Earthquake : -
-
1
-
-
-
-
-
-
-
 -
 -
1
   2010 :
- - - - - 1 - - -
- - - 1
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2011
All times are local.
+ indicates first of multiple occurences (on different dates).
End of month S.O.G. defined as S.O.G. at 7 AM on last day of the month.
Days With Precipitation include trace amounts.

Records from Grimsby 1910-13, Rock Chapel 1914-1966/04/17, Royal Oak 1966/04/18-1974, Grimsby 1975-1985/08/20,
     Rittenhouse 1985/08/21-1993/09/30, Vineland 1993/10/01-2003/09/17, and Grimsby Mountain 2003/09/18 to present.



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