XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
Annual Weather :  2004
             
 2004 Temperatures : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
  Average Temperature : (°C)
-8.6
-3.2
2.2
7.0
13.0
17.2
20.3
19.3
18.3
10.4 5.4 -1.8
8.3
  Departure from Normal :
-3.3
+1.7
+2.1
+0.7
+0.2
-1.2
-1.1
-1.2
+2.7
+1.1
+1.7
+0.8
+0.4
  Average Maximum Temp : -4.5
1.3 6.3
11.6
18.5
22.6
24.5
24.0
23.3
14.4
9.2
1.8
-
  Highest Temperature : 13.8
10.5
18.0
24.8
30.9
32.7
31.3
29.8
28.8
26.9
16.4
12.8
32.7
  Time : 1205
1447
1557
1559
1556
1348
1534
1534
1336
1454
1152
1638
1348
  Date : 3rd
29th5th 29th
13th
9th
4th
2nd
3rd
7th
7th
7th
6/9
  Average Minimum Temp : -12.7
-7.7
-1.8
2.3
7.6
11.8
16.1
14.7
13.4
6.4
1.6
-5.5
-
  Lowest Temperature : -23.8
-17.6
-10.9
-5.5
-0.9
5.9
12.1
8.6
5.3
0.4
-4.6
-18.3
-23.8
  Time : 0106
0415
0720
0655
0456
0510
0304
0355
0642
0553
0327
0227
0106
  Date : 16th
16th
18th
5th
4th
20th 9th
22nd
20th
12th
9th
20th
1/16
  Average Rel Humidity : (%)
70
68
74
67
73
73
77
73
72
76
73
76
73
  Highest Rel Humidity : 98
98
100
100
99
99
100
98
100
100
99
100
100
  Time : 0441
2341
1045
0208
0312
0020
0531
0134
0203
1617
1727
1349
1045
  Date : 2nd+
20th+
5th
2nd+
2nd+
1st+
27th
1st+
9th
20th+
2nd+
10th+
3/5+
  Lowest Rel Humidity : 29
27
27
19
24
33
36
27
28
27
27
27
19
  Time : 1957
1104
1344
1313
1714
1748
1633
1433
1539
1539
1318
1309
1313
  Date : 13rd
28th
22nd
16th
7th+
3rd
24th
21st
22nd
1st+
15th
27th
4/16
  Average Dew Point : (°C) -12.7
-8.3
-1.8
0.9
8.3
12.2
16.2
14.4
13.1
6.6
0.8
-5.1
3.7
  Departure from Normal : -3.3
+1.3
+2.5
+0.6
+1.3
-0.1
+0.9
-0.9
+1.6
+1.1
+0.4
+0.5
+0.5
  Highest Dew Point : 11.3
4.2
13.5
15.5
20.7
24.9
23.9
23.7
21.8
17.7
11.8
10.9
24.9
  Time : 1117
0017
1256
1539
1156
1420
1035
1442
1531
1054
1212
1843
1420
  Date : 3rd
21st
5th
21st
13th
9th
21st
27th
16th
30th
18th
7th
6/9
  Lowest Dew Point : -28.9
-25.6
-19.2
-17.6
-6.6
-1.4
4.0
0.8
-0.6
-2.3
-14.4
-24.3
-28.9
  Time : 0102
2318
0436
1527
1714
1824
1623
1433
1727
1508
1412
1710
0102
  Date : 16th
15th
22nd 5th
7th
3rd
24th
21st
19th
5th
13th
19th
1/16
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004


 2004 Precipitation : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
  Total Precipitation : (mm)
59.8
18.2
66.5
91.5
107.4
75.3
79.4
35.1
65.3
30.3
79.9
114.7
823.4
  Departure from Normal (%) :
-17
-66
+6
+20
+41
-7
+3
-53
-30
-60
+14
+56
-7
  Most Precip in 1 Day :
15.1
5.0 16.8
21.1
19.8
22.6
27.7
12.7
52.1
8.4
33.5
36.6
52.1
  Date :
27th
3rd16th
21st
23rd
9th
31st
29th
9th
15th
24th
23rd
9/9
  Total Rainfall : (mm)
7.8
9.4
39.4
91.2
107.4
75.3
79.4
35.1
65.3
30.3
79.7
74.9
695.2
  Departure from Normal (%) : -73
-63
-11 +34
+41
-7
+3
-53
-30
-59
+25
+73
-7
  Most Rainfall in 1 Day : 6.1
3.3
8.6
21.1
19.8
22.6
27.7
12.7
52.1
8.4
33.5
24.4
52.1
  Date : 2nd
20th
5th
21st
23rd
9th
31st
29th
9th
15th
24th
23rd
9/9
  Highest Rain Rate : (mm/h) 20.6
4.1
43.9
62.5
73.9
53.3
60.5
55.4
27.2
83.1
14.2
25.7
83.1
  Time : 2336
2328
1421
1049
2219
1715
0521
1501
1519
1439
0445
0943
1439
  Date : 2nd
20th
20th
18th+
6th
1st
31st
29th
8th
30th
28th
1st
10/30
  Total Snowfall : (cm)
62.8
7.6
26.2
0.2
0
0
0
0
0
 0
TR
37.6
134.4
  Departure from Normal (%) :
+27
-77
+46
-98
-
-
-
-
-
0
0
+13
-9
  Most Snowfall in 1 Day : 13.2
3.0
16.8
0.2
0
0
0
0
0
0
TR
12.2
16.8
  Date : 27th
24th
16th
4th
-
-
-
-
-
-
8th+
23rd
3/16
  Average Snow on Ground : 24
28
4
TR
0
0
0
0
0
0
TR
7
5
  Highest Snow on Ground : 38
35
20
TR
0
0
0
0
0
0
TR
24
38
  Date : 28th+
1st
1st
4th
-
-
-
-
-
- 25th
27th
1/28+
  End of Month Snw on Gnd : 36
24
0
0
0
0
0
0
0
0
0
14
-
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
 
 2004 Wind : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
  Average Wind Speed : (kt)
M
M
M
M
M
M
M
M
M
M
M
M
M
  Prevailing Wind Direction :
S
S SSW N
N
N
N
S
N
S
SSW
SSW
N
  Highest Wind Speed : (kt)
30
21
30
26
19
17
16
15
28
24
24
24
30
  Highest Wind Direction : N
N
NNE
N
S
NNE
WNW
NNW
N
NNE
WNW
S
N
  Time : 0443
1030
1714
2044
0156
1754
1516
1523
0253
1105
0059
1924
0443
  Date : 5th
7th+
16th
4th
5th
3rd+
4th+
5th+
9th
19th
5th+
7th
1/5+
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004

 2004 Pressure : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
  Average Pressure : (")
30.02
30.16
30.09
29.96
29.96
29.96
29.89
29.96
30.10
29.97
30.09
29.98
30.01
  Departure from Norm :
+.02
+.12
+.10
-.02
.00
.00
-.09
-.06
+.06
-.08
+.07
-.05
.00
  Highest Pressure :
30.57
30.68 30.50
30.34
30.37
30.27
30.33
30.26
30.44
30.39
30.80
30.67
30.80
  Time :
0845
08301230
1145
0130
0945
1245
1015
1115
1030
0815
1045
0815
  Date :
10th
5th13th
24th
8th
4th
24th
15th
19th
5th
14th
27th
11/14
  Lowest Pressure :
29.51
29.25
29.41
29.50
29.46
29.51
29.47
29.67
29.69
29.22
29.26
29.26
29.22
  Time :
0445
23451415
1745
1630
1530
0400
1615
0800
0045
0145
1600
0045
  Date :
22nd
20th+5th
3rd
31st
1st
15th
10th
9th
16th
25th
7th
10/16
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004

 2004 Days With : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
  Thunderstorm :
-
-
-
4
2
4
8
5
1
2
1
-
27
  Funnel Cloud/Waterspout :
-
-
-
-
-
-
-
-
-
-
-
-
-
  Rain :
2
3
14
15
21
14
17
12
4
12
11
12
135
  Drizzle :
-
- 2
2
1
1
-
-
-
11
6
5
28
  Hail :
- -
-
1
-
-
-
-
-
-
-
-
1
  Freezing Rain : 1
1
-
-
-
-
-
-
-
-
-
1
3
  Freezing Drizzle : 3
1
-
-
-
-
-
-
-
-
-
1
5
  Ice Pellets :
3
2
-
-
-
-
-
-
-
-
-
1
6
  Snow : 27
15
12
2
-
-
-
-
-
-
4
18
78
  Snow Pellets :  1
-
-
-
-
-
-
-
-
-
1
-
2
  Snow Grains : 1
-
-
-
-
-
-
-
-
-
-
-
1
  Ice Crystals : -
-
-
-
-
-
-
-
-
-
-
-
-
  Fog : -
1
5
6
7
2
5
2
1
10
5
3
47
  Ice Fog : -
-
-
-
-
-
-
-
-
-
-
-
-
  Blowing Snow : 1
-
1
-
-
-
-
-
-
-
-
-
2
  Haze : -
2
-
-
7
6
9
7
9
-
-
2
42
  Smoke : -
-
-
-
-
-
-
-
-
-
-
-
-
  Dust : -
-
-
-
-
-
-
-
-
-
-
-
-
  Blowing Dust : -
-
-
-
-
-
-
-
-
-
-
-
-
  Blowing Sand : -
-
-
-
-
-
-
-
-
-
-
-
-
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2004
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.















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