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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