XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2010
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2010 :   
 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 : 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
  Date : 25th
21st
18th
 3rd
27th
23rd
8th
30th
1st
8th
23rd
1st
7/8
  Time : 1051
1417
1600
1412
1516
1330
1349
1453
1335
1516
0040
0000
1349
   2009 :
4.2
11.7
17.4
29.2 28.4
32.0 28.6
32.8
27.9 18.8 17.5 12.3
32.8
  Average Maximum Temperature : -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
  Departure from Normal  :
+0.8
+1.8
+4.4
+5.4
+2.8
+0.5
+2.3
+2.0
+1.0
+1.8
+1.8
-1.2
+1.9
  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
   2009 :
-3.4 2.2
6.2
13.1
19.3
22.8
24.3 26.1
21.6
13.3 10.3
1.3
13.1
  Average Temperature : (°C)
-4.2
-2.8
4.4
10.7
15.6
19.8
23.5
22.6
16.7
10.9
5.0
-3.1
9.9
  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 : -7.1
-6.1
0.1
5.0
9.8
15.1
18.0
17.6
12.1
6.5
1.2
-5.8
5.5
  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 : -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
  Date : 10th
11th
6th
10th
10th
8th
1st
27th
26th
22nd
26th
9th
1/10
  Time : 0419 0506
0406
0651
0352
0520
0551
0616
0712
0716
2215
0630
0419
   2009 :
-19.5
-22.7 -13.4
-3.7
0.2
7.0
10.0
8.8 7.1
-1.2 -0.6 -11.8
-22.7
  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
  2010
 RELATIVE HUMIDITY : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Relative Humidity : 99
98
100
98
97
98
96
98
100
99
100
96
100
  Date : 17th
22nd+
23rd
6th+
12th+
12th+
9th+
9th+
27th
24th
12th+
1st+
3/23+
  Time : 0916
2105
1145
2227
0320
2034
0834
0600
1955
2359
2015
0000
1145
   2009 :
97
97
100
98
99
100
98 97
98
99 99 99
100
  Average Relative Humidity : (%)
79
77
68
59
69
75
72
76
77
73
78
78
73
  Departure from Normal  :
+5
+8
-4
-3
+1
+7
+4
+4
0
-4
-1
-2
+1
  Normal  :
74
69
72
62
68
68
68
72
77
77
79
80
72
   2009 :
74
73
67
66
64
73
77
76
77
78 81 76
74
  Lowest Relative Humidity : 42
30
11
15
27
23
33
30
32
30
42
46
11
  Date : 29th 21st
16th
4th+
5th+
1st
10th
17th
13th
9th
7th+
9th
3/16
  Time : 1350 1541
1527
1725
1501
1449
1451
1329
1711
1814
1304
1045
1527
   2009 :
37
32
15
14
16
30
32
42
41
33 44 36
14
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 DEW POINT : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Dew Point : 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
  Date : 25th
27th
19th
7th
27th
28th
23th
15th
2nd
26th
22nd+
1st
7/23
  Time : 1051
1614
1249
1601
1702
1257
1408
1433
1252
1707
1408
0000
1408
   2009 :
1.0
9.7
11.0
17.0
17.7
24.6
23.5 26.1
23.3
15.0 11.8 7.0
26.1
  Average Dew Point : (°C) -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
  Departure from Normal  :
+2.3
+3.2
+2.4
+1.6
+2.7
+2.9
+3.0
+2.9
+1.1
+0.6
+1.2
-0.6
+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
   2009 :
-10.9 -6.1 -4.1 1.1 5.9 13.0
15.5 17.3 13.3
6.2 3.8 -5.2 4.2
  Lowest Dew Point : -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
  Date : 10th
7th
26th
27th
9th
7th
1st
6th
20th
9th
24th
13th
1/10
  Time : 0415
1812
0455
1307
2015
2235
2201
2230
1408
1814
1631
1019
0415
   2009 :
-23.3
-26.1
-22.2
-12.4
-10.1 1.8 4.4 7.9
-1.6
-6.1 -4.1 -17.4
-26.1
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 PRECIPITATION : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Precipitation : (mm)
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
  % of Normal  :
56%
100%
114%
86%
87%
196%
99%
126%
99%
122%
127%
47%
105%
  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
   2009 :
57.9 57.4 101.6 148.5 59.1 125.6 116.0 150.0 31.5
98.8 38.3 85.5 1070.2
  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 :
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
  Date :
24th
22nd
13th
7th
7th
6th
9th
22nd 28th
5th
16th
12th
8/22
   2009 :
14.7 20.0 42.0 28.2 11.2 28.7 21.2 34.5 10.4
20.1 14.2 28.4 42.0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 RAINFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Rainfall : (mm)
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
  % of Normal  :
75%
2%
155%
96%
87%
196%
99%
126%
99%
123%
138%
62%
113%
  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
   2009 :
7.0 48.1 100.8 139.7 59.1 125.6
116.0 150.0 31.5
98.8 38.3 77.7 992.6
  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 : 11.7
0.4
21.0
24.8
18.4
37.8
30.8
49.6
29.1
12.7
25.0
13.2
49.6
  Date : 24th
28th
13th
7th
7th
6th
9th
22nd
28th
5th
16th
12th
8/22
   2009 :
7.0 20.0 42.0 28.2 11.2 28.7
21.2 34.5 10.4
20.1 14.2 25.0 42.0
  High Rain Rate : (mm/h) 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
  Date : 25th28th
12th
7th
3rd
4th
28th
25th
28th
11th
23rd
1st
7/28
  Time : 10021945
1848
1135
0502
2333
1730
1757
1034
1725
0252
0431
1730
   2009 :
M 30.7 26.4 146.3 71.1 318.0
116.1 1045.0 41.7
370.0 21.3 38.1 1045.0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 SNOWFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Total Snowfall : (cm)
32.2
47.0
0.2
TR
-
-
-
-
-
-
TR
4.8
 84.2
  % of Normal  :
65%
144%
1%
0%
0%




0%
0%
14%
57%
  Normal :
49.6
32.6
18.0
8.1
0.2
0
0
0
0
0.1
6.0
33.4
148.0
   2009 :
54.6 17.4 0.4 6.2 - -
- - -
- TR 5.2 83.8
  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 : 9.0
13.8
0.2
TR
-




-
TR
2.0
13.8
  Date : 8th
22nd+
21st
9th+
-





18th+
12th
2/22+
   2009 :
15.2 7.4 0.2 4.0 - -
- - -
- TR 1.6 15.2
  Highest Snow on Ground : 17
32
20
0
0




0
0
4
32
  Date : 12th
27th
1st
-
-




-
-
21st
2/27
   2009 : 37 44 TR 6 - -
- - -
- - 2 44
  Average Snow on Ground : 7
7
5
0
0




 
0
2
2
   2009 :
21 11 TR TR - -
- - -
- 0 TR 3
  End of Month Snw on Gnd : 3
27
0
0
0




 
0
TR
--
   2009 :
35 TR 0 0 - -
- - -
- 0 1 --
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 WIND : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Wind Speed : (kt)
25
30
32
26
29
28
17
24
25
32
24
37
37
  Highest Wind Direction : 220
020
080
020
070
340
210
020
230
220
290
360
360
  Date : 13th
6th
13th
27th
7th
6th
17th+
23rd
24th
27th
26th
13th
12/13
  Time : 1533
0341
1442
0726
2239
0831
1703
1214
1316
1908
0138
1658
1658
   2009 :
30 33 29 29 30 18 17 22 23 25 28 31 33
  Average Wind Speed : (kt)













   2009 :













  Prevailing Wind Direction :













   2009 :













 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 PRESSURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Highest Pressure :
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
  Date :
29th
4th
27th
14th
11th
30th
2nd
30th
20th
4th
2nd
9th
4/14
  Time :
2330
0815
0815
1100
0400
2345
0915
0800
1115
1045
0815
1815
1100
   2009 :
30.51 30.52 30.60 30.56 30.37 30.10 30.17 30.22 30.34 30.38 30.49 30.49 30.60
  Average Pressure : (")
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
  Departure from Normal  :
0.00 -0.16
-0.04
-0.08
-0.02
-0.11
-0.08
-0.11
-0.14
-0.16
+0.01
-0.09
-0.09
  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
   2009 :
29.97 30.02 30.13 29.92 29.96 29.83 29.86 29.94 30.05
29.97 30.08 30.02 29.98
  Lowest Pressure :
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
  Date :
25th
26th
14th+
26th
8th
6th
19th
5th
28th
26th
17th
12th
1/25
  Time :
2230 0915
0245
1545
1115
0600
0500
1600
1000
1700
0330
1615
2230
   2009 :
29.02 29.07 29.24 29.00 29.41 29.37 29.53 29.57 29.14 29.28 29.58 28.92 28.92
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Thunderstorm :
-
-
-
2
6
11
9
4 2
2
-
-
36
   2009 :
- - 1 1 8 8 8 8 1
1
- - 36
  Funnel Cloud/Waterspout :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
  Rain :
2
2
10
13
15
19
16
14
15
18
12
4
140
   2009 :
- 8 8 12 16 14 17 14 8
20 12 9 138
  Drizzle :
1
1
2
-
3
1
-
1
3
-
-
-
12
   2009 :
2 - 2 2 4 4 - - -
4 2 2 22
  Hail :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - 1 1 1 1 -
- - - 4
  Freezing Rain : -
-
-
-
-
-
-
-
-
-
-
1
1
   2009 :
1 1 - - - - - - -
- - - 2
  Freezing Drizzle : 3
3
-
-
-
-
-
-
-
-
-
-
6
   2009 :
- - - - - - - - -
- - 1 1
  Ice Pellets :
-
-
1
1
-
-
-
-
-
-
1
-
3
   2009 :
2 - - - - - - - -
- - 3 5
  Snow : 20
21
4
3
-
-
-
-
-
-
2
25
75
   2009 :
19 11 5 3 - - - - -
- 2 18 58
  Snow Pellets :  -
1
-
-
-
-
-
-
-
-
-
-
1
   2009 :
- - - - - -
- - -
- - - 0
  Snow Grains : -
2
-
-
-
-
-
-
-
-
-
-
2
   2009 :
- - - - - -
- - -
- - - 0
  Ice Crystals : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Fog : 3
-
6
4
2
7
-
1
3
2
5
-
33
   2009 :
- 1 6 5 2 4 2 - 1
5 4 3 33
  Freezing Fog : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- 1 - - - - - - -
- - 2 3
  Ice Fog : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
  Blowing Snow : 1
-
-
-
-
-
-
-
-
-
-
1
2
   2009 :
1 - - - - - - - -
- - - 1
  Haze : 1
-
1
2
1
4
8
5
-
-
1
2
25
   2009 :
2 2 4 - - - - 5 1
- 2 - 16
  Smoke : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
  Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
  Blowing Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
  Blowing Sand : -
-
-
-
-
-
-
-
-
-
-
-
0
   2009 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  Aurora : -
-
-
-
-
-
-
-
-

 -
 -
0
   2009 :
- - - - - - - - -
- - - 0
  Earthquake : -
-
-
-
-
1
-
-
-
-
 -
 -
1
   2009 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2010
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.



CLIMAT Data
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2005 2004 Normals & Extremes

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