XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2009
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2009 :   
 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 : 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
  Date : 23rd
10th
6th
27th
21st
24th
10th
17th
23rd
20th
9th
2nd
8/17
  Time : 1346
1300
1457
1541
1614
1544
1545
1357
1458
1430
1257
1307
1357
   2008  :
16.2
9.9
14.0
25.7 26.6
33.7 32.3
30.2
29.7 24.7 20.0 15.4
33.7
  Average Maximum Temperature : -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
  Departure from Normal  :
-1.4
+3.4
+2.0
+2.0
+0.8
-1.1
-2.4
+0.6
+1.2
-0.1 +3.3
+0.5 +0.7
  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
   2008  :
2.5 0.6
3.5
14.1
18.0
25.6
27.3 25.0
21.8
14.5 7.1
2.2
13.5
  Average Temperature : (°C)
 -7.6
 -2.2
 1.7
 7.9
 13.5
 17.9
 19.4
 21.3
 17.3
 9.3
 6.6
 -1.7
 8.6
  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 : -11.7
 -6.6
 -2.8
 2.7
 7.6
 13.1
 14.6
 16.5
 13.0
 5.3
 3.0
 -4.6
 4.2
  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 : -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
  Date : 14th
5th
3rd
7th
18th
1st
12th
31st
30th
12th
29th
23rd
2/5
  Time : 0703 0721
0615
0741
0557
0417
0625
0630
2339
0652
0057
0457
0721
   2008  :
-14.4
-17.8 -12.5
-3.8
0.5
9.9
11.6
11.4 7.7
-2.3 -9.5 -15.3
-17.8
  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
  2009
 RELATIVE HUMIDITY : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Highest Relative Humidity : 97
 97
 100
 98
 99
 100
 98
 97
 98
 99
 99
 99
 100
  Date : 7th
11th+
7th+
3rd
28th
17th+
1st+
1st+
9th
9th+
24th+
26th+
3/7+
  Time : 0312
0526
1554
0702
0400
2347
1446
0336
0149
1100
2000
0545
1554
   2008  :
96
97
96
96
96
98
98 98
99
97 100 97
100
  Average Relative Humidity : (%)
74
73
67
66
64
73
77
76
77
78
81
76
74
  Departure from Normal  :
0
 +4
 -5
 +4 -4
 +5 +9 +4 0
 +1 +2 -4
 +2
  Normal  :
74
69
72
62
68
68
68
72
77
77
79
80
72
   2008  :
71
71
67
62
62
73
72
73
77
70 75 77
71
  Lowest Relative Humidity : 37
 32
 15
 14
 16
 30
 32
 42
 41
 33
 44
 36
 14
  Date : 24th 25th
23rd
17th
20th
15th
13th
31st
19th
18th
7th
19th
4/17
  Time : 1355 1424
1444
1527
1503
1551
1839
1504
2101
1527
1047
0550
1527
   2008  :
31
29
19
14
14
30
32
27
38
33 40 41
14
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 DEW POINT : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Highest Dew Point : 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
  Date : 7th
11th
6th
25th
16th
25th
11th
10th
23rd
7th
8th+
2nd
8/10
  Time : 1245
1302
1457
1754
1340
1203
1345
1149
1319
0036
1029
2240
1149
   2008  :
12.2
8.4
8.3
15.6
19.2
24.2
24.2 24.3
22.9
18.3 11.2 11.8
24.3
  Average Dew Point : (°C) -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
  Departure from Normal  :
-1.5
+3.5
 +0.2
 +0.8
 -1.1
 +0.7
 +0.2
 +2.0
 +1.8
 +0.7
 +3.4
 +0.4
 +1.0
  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
   2008  :
-5.3 -7.7 -5.9 0.8 4.7 15.6
16.7 15.3 13.3
4.9 -0.1 -5.1 3.9
  Lowest Dew Point : -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
  Date : 14th
5th
23rd
13th
18th
3rd
13th
31st
19th
18th
6th
29th
2/5
  Time : 0703
0715
1444
1647
1226
1118
0450
1504
2101
1527
0953
0314
0715
   2008  :
-22.5
-26.2
-20.2
-16.7
-10.2 6.5 2.1 2.0
-1.9
-8.7 -12.7 -19.1
-26.2
  Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  2009
 PRECIPITATION : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Total Precipitation : (mm)
 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
  % of Normal  :
81%
 107%
 162%
 194%
 77%
 156%
 150%
 202%
 34%
 132%
 55%
 116%
 121%
  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
   2008  :
46.4 138.5 128.3 57.1 54.4 104.7 172.3 166.5 89.1
62.6 82.1 131.2 1233.2
  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 :
 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
  Date :
28th
11th
7th
3rd+
30th
29th
21st
9th
26th
23rd
19th
9th
3/7
   2008  :
7.9 42.1 36.3 23.2 15.3 29.2 41.1 54.8 16.0
10.9 37.7 28.6 54.8
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 RAINFALL : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Total Rainfall : (mm)
 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
  % of Normal  :
24%
 189%
 228%
 205%
 78%
 156%
 150%
 202%
 34%
 132%
 60%
 179%
 132%
  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
   2008  :
31.6 48.4 41.5 57.1 54.4 104.7
172.3 166.5 89.1
62.2 69.3 53.8 950.9
  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 : 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
  Date : 7th
11th
7th
3rd+
30th
29th
21st
9th
26th
23rd
19th
9th
3/7
   2008  :
7.9 12.5 10.7 23.2 15.3 29.2
41.1 54.8 16.0
10.9 36.0 14.0 54.8
  High Rain Rate : (mm/h) 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
  Date : M11th
7th
25th
14th
28th
11th
22nd
27th
2nd
27th
9th
8/22
  Time : M1933
1936
2035
0643
2015
0937
1315
1028
2126
1641
1334
1315
   2008  :
5.1 8.6 6.6 22.4 21.6 71.6
243.8 292.6 73.2
73.9 15.2 14.7 292.6
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 SNOWFALL : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Total Snowfall : (cm)
 54.6
 17.4
 0.4
 6.2
 -
 -
 -
 -
 -
 -
 TR
 5.2
83.8
  % of Normal  :
110%
 53%
 2%
 77%
 0%
 -
 -
 -
-
0%
 0%
 16%
 57%
  Normal :
49.6
32.6
18.0
8.1
0.2
0
0
0
0
0.1
6.0
33.4
148.0
   2008  :
21.4 65.4 54.8 TR - -
- - -
TR 11.8 95.8 249.2
  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 : 15.2
 7.4
 0.2
 4.0
 -
 -
 -
 -
 -
 -
 TR
 1.6
15.2
  Date : 28th
4th
9th+
6th
-
-
-
-
-
-
5th+
22nd
1/28
   2008  :
8.4 20.8 22.0 TR - -
- - -
TR 5.0 23.4 23.4
  Highest Snow on Ground : 37
 44
 TR
 6
 -
 -
 -
 -
 -
 -
 -
 2
44
  Date : 29th
5th
1st+
7th
-
-
-
-
-
-
-
28th
2/5
   2008  : 17 28 43 7 - -
- - -
0 6 41 43
  Average Snow on Ground : 21
11
TR
TR
-
-
-
-
-
-
0
TR
3
   2008  :
4 15 25 0 - -
- - -
0 1 9 3
  End of Month Snw on Gnd : 35
TR
0
0
-
-
-
-
-
-
0
1
--
   2008  :
TR 22 13 0 - -
- - -
0 0 13 --
  Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  2009
 WIND : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Highest Wind Speed : (kt)
 30
 33
 29
 29
 30
 18
 17
 22
 23
 25
 28
 31
33
  Highest Wind Direction : 010
190
020
010
220
360
360
010
020
200
250
210
190
  Date : 10th
7th
2nd
6th
14th
25th
11th
9th
19th
31st
5th
9th
2/7
  Time : 2322
1313
2146
0627
1049
1315
1300
2130
0041
0502
1246
1906
1313
   2008  :
33 34 32 30 22 19 24 32 29 28 23 38 38
  Average Wind Speed : (kt)













   2008  :
4.0 3.5 3.3 2.6 2.1 1.5 1.3 0.9




  Prevailing Wind Direction :













   2008  :
NNE NNE NNE NNE NNE WSW
WSW NNE




 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 PRESSURE : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Highest Pressure :
 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
  Date :
27th
24th
12th
29th
18th
16th
9th+
31st
19th
12th
11th
17th
3/12
  Time :
0845
0945
1245
0930
1200
0845
1444
1115
1200
0700
1030
1045
1245
   2008  :
30.73 30.44 30.68 30.50 30.38 30.28 30.10 30.31 30.55 30.69 30.55 30.67 30.73
  Average Pressure : (")
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
  Departure from Normal  :
-0.03 -0.02 +0.14
 -0.06 0.00 -0.13 -0.12 -0.08 +0.01
 -0.08 +0.06
 -0.01 -0.03
  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
   2008  :
30.02 29.95 30.04 30.02 29.82 29.84 29.87 29.98 30.11
30.16 30.01 30.04 29.99
  Lowest Pressure :
 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
  Date :
7th
12th
29th
3rd
9th
30th
1st
20th
28th
7th
29th
9th
12/9
  Time :
1400 0430
1115
1600
1315
0345
0000
1815
1015
0030
1815
1315
1315
   2008  :
28.93 29.22 29.41 29.44 29.29 29.59 29.55 29.71 29.18 29.61 29.25 29.19 28.93
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 DAYS WITH : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Thunderstorm :
-
-
1
1
8
8
8
8
1
1
-
-
36
   2008  :
- 1 - 3 3 13 12 10 1
1
- - 44
  Funnel Cloud/Waterspout :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
  Rain :
 -
 8
 8
 12
 16
 14
 17
 14
 8
 20
 12
 9
138
   2008  :
15 5 10 9 18 22 18 16 12
12 15 13 165
  Drizzle :
 2
 -
 2
 2
 4
 4
 -
 -
 -
 4
 2
 2
22
   2008  :
4 2 4 2 - - 1 1 4
- 3 3 24
  Hail :
 -
 -
 -
 -
 1
 1
 1
 1
 -
 -
 -
 -
4
   2008  :
- - - - - - 1 3 -
1 - - 5
  Freezing Rain : 1
 1
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
2
   2008  :
- 2 5 - - - - - -
- - - 7
  Freezing Drizzle : -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 1
1
   2008  :
- 1 - - - - - - -
- - 1 2
  Ice Pellets :
 2
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 3
5
   2008  :
2 4 5 - - - - - -
- 1 2 14
  Snow : 19
 11
 5
 3
 -
 -
 -
 -
 -
 -
 2
 18
58
   2008  :
18 19 17 1 - - - - -
2 14 24 95
  Snow Pellets :  -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
0
   2008  :
1 1 1 - - -
- - -
- 1 - 4
  Snow Grains : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- 1 - - - -
- - -
- - - 1
  Ice Crystals : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 DAYS WITH : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Fog : -
1
6
5
2
4
2
-
1
5
4
3
33
   2008  :
- 2 4 3 2 2 2 1 3
- 3 1 23
  Freezing Fog : -
1
-
-
-
-
-
-
-
-
-
2
3
   2008  :
- - 1 - - - - - -
- - - 1
  Ice Fog : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
  Blowing Snow : 1
-
-
-
-
-
-
-
-
-
-
-
1
   2008  :
1 - 2 - - - - - -
- - 3 6
  Haze : 2
2
4
-
-
-
-
5
1
-
2
-
16
   2008  :
1 1 3 1 - 4 3 2 -
- - - 15
  Smoke : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
  Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2007 :
- - - - - - - - -
- - - 0
  Blowing Dust : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
  Blowing Sand : -
-
-
-
-
-
-
-
-
-
-
-
0
   2008  :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2009
 DAYS WITH : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  Aurora : -
 -
 -
 -
 -
 -
 -
 -
 -
 - 
  -
  -
 0
   2008  :
- - - - - - - - -
- - - 0
  Earthquake : -
-
 -
 -
 -
 -
 -
 -
 -
 -
  -
  -
 0
   2008  :
- - - - - - - - -
- - - 0
 Jan
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YEAR
  2008
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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