XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2019
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2019 :   
 TEMPERATURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  RECORD HIGHEST TEMPERATURE : 17.8
19.7
27.0
30.6
37.2
36.1
41.1
40.6
38.3
30.4
24.4
21.0
41.1
  HIGHEST TEMPERATURE : 11.0
13.6
13.0
24.0
27.6
32.1
33.4
30.9




33.4
  Date : 1st
4th
15th
18th
19th
28th
20th
6th




7/20
  Time : 0040 1449 0117 1644 1651 1432 1442 1108



1442
   2018 :
14.3
16.9
10.8
19.4 32.2
34.5 34.9
33.2
33.6 29.1 16.6 14.1
34.9
  AVERAGE HIGH TEMPERATURE : -1.1
1.9
5.2
11.1
17.5
23.5
28.6
26.3





  Departure from Normal  :
+0.9
+3.1
+1.0
0.0
-1.0
-0.4
+1.9
+0.8





  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
   2018 :
-0.63.8
3.88.2
22.1
24.3
28.928.1
23.6
14.5 4.9
3.4
13.8
  AVERAGE TEMPERATURE : (°C)
-5.4
-2.7
0.2
6.6
12.3
18.0
23.3
21.3





  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 LOW TEMPERATURE : -9.6
-7.3
-4.8
2.1
7.0
12.6
18.1
16.3





  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
-20.7
-15.1
-6.8
2.6
4.9
13.6
12.0




-22.6
  Date : 31st
1st
5th
1st
11th
3rd
1st
31st




1/31
  Time : 0411 0737 0402 0623 0602 0548 0543 0206



0411
   2018 :
-22.9 -14.7-7.5 -5.7 4.1 9.613.2 12.7 5.9 -0.4 -10.8 -8.6 -22.9
  RECORD LOWEST 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
  2019
 RELATIVE HUMIDITY : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST RELATIVE HUMIDITY : 98
99
100
100
100
100
100
95




100
  Date : 8th
7th+
30th
19th+
4th+
16th
3rd
6th+




3/30+
  Time : 1656
1740
1530
1928
0400
0300
0431
0127




1527
  AVERAGE RELATIVE HUMIDITY : (%)
75
76
67
74
76
71
73
71




 
  Departure from Normal  :
+1 +7 -5 +12 +8 +3 +5 -1



+1
  Normal  :
74
69
72
62
68
68
68
72
77
77
79
80
72
   2018 :
74
76
67
70
66
70
67
75
78
78 78 82
73
  LOWEST RELATIVE HUMIDITY : 41
37
16
27
27
26
38
25




16
  Date : 26th
1st
27th
3rd
21st
23rd
8th+
3rd




3/27
  Time : 1251
1402
1527
1539
1634
1845
1517
1223




1527
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 DEW POINT : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST DEW POINT : 10.9
10.4
11.4
14.4
20.1
22.1
27.0
23.7




27.0
  Date : 1st
7th+
15th
23rd
23rd
29th
19th
18th




7/19
  Time : 0041
2358
0128
1624
1434
1143
1231
1337




1231
  AVERAGE DEW POINT : (°C) -8.9
-6.4
-5.6
1.9
8.2
12.2
18.1
15.6





  Departure from Normal  :
+0.5
+3.2
-1.3
+1.6 +1.2 -0.1
+2.8 +0.3




  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
   2018 :
-8.6 -4.3 -5.5 -2.1 9.1 13.1
16.4 18.8 15.2
6.4 -1.3 -2.2 4.6
  LOWEST DEW POINT : -27.9
-24.8
-19.8
-10.3
-3.2
-2.2
9.1
6.0




-27.9
  Date : 30th+
1st
6th
3rd+
8th
2nd
8th
3rd




1/30+
  Time : 2356
0429
1511
1539
2317
2333
1642
1223




2356
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 PRECIPITATION : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  TOTAL PRECIPITATION : (mm)
70.9
86.3
68.5
113.2
167.4
98.8
67.7
105.0





  % of Normal  :
99% 161%
109%
148%
219%
122%
88% 142%





  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
   2018 :
78.3 92.669.9150.3 70.1 55.667.5 89.5 69.4
108.7125.772.81050.4
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 RAINFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  RECORD RAINFALL IN 1 DAY : 52.1
40.6
51.6
52.0
68.6
78.0
72.6
90.2
77.0
115.3
60.2
57.4
115.3
  MOST RAINFALL IN 1 DAY : 8.6
22.6
23.8
30.7
33.5
21.8
16.9
31.2




33.5
  Date : 23rd
12th
30th
14th
1st
10th
30th
6th




5/1
   2018 :
15.3 11.8 23.0 27.0 17.414.4 41.3 19.4
26.6 21.0 43.4 22.2 43.4
  HEAVIEST RAIN RATE : (mm/h) 8.0
12.0
24.0
79.0
169.4
180.0
151.6
303.2




303.2
  Date : 7th
12th
10th
14th
23rd
25th
16th
8th




8/8
  Time : 2017
2207
0122
2026
1002
0049
1334
1510




1510
   2018 :
26.631.8 19.6 34.0 125.2 88.6 180.0 169.4198.6 73.8 53.427.2 198.6
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 SNOWFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  TOTAL SNOWFALL : (cm)
46.6
35.2
25.6
TR
0




 


  % of Normal  :
94%
108%
142%
0%
0%








  Normal :
49.6
32.6
18.0
8.1
0.2
0
0
0
0
0.1
6.0
33.4
148.0
   2018 :
23.439.4 35.6 11.0 - -
- - -
TR22.411.2 143.0
  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 : 18.4
12.8
14.0
TR
0




 

18.4
  Date : 19th
27th
31st
1st+








1/19
   2018 :
6.615.4 16.4 4.0 - -
- - -
TR7.6 3.4 16.4
  Highest Snow on Ground : 23
20
17
9
0




 

23
  Date : 29th
1st+
31st
1st








1/29
   2018 : 20 32267--
- - -
TR10 432
  Average Snow on Ground : 9
8
5
1
0








   2018 :
81171
--
- - -
0211
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 WIND : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST WIND SPEED : (kt)
27
36
30
29
24
17
23
21




36
  HIGHEST WIND DIRECTION : 030
220
230
020
360
080
270
250




220
  Date : 19th+
24th
10th
14th
15th
8th+
20th
19th




2/24
  Time : 1628
1340
1251
1958
1611
1613
2157
0002




1340
   2018 :
30 29 30 3536182221 24262822 36
  AVERAGE DAILY PK GUST : (kt)
19.6
19.1
16.1
16.4
14.2
12.0
10.2
11.3





   2018 :
20.0
17.6
18.3
17.6
15.2
12.3
11.3
10.3
13.6
15.7
14.2
13.1
14.9
  PREVAILING WIND DIRECTION :
SW
SW
SSW
N
N
SSW
SSW
SSW





   2018 :
SSW
SSW
N
N
SSW
N
SSW
SSW
N
SSW
SW
SSW
SSW
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 PRESSURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST PRESSURE :
30.68
30.82
30.50
30.55
30.43
30.19
30.24
30.33




30.82
  Date :
22nd
9th
27th
4th
1st
8th+
26th 31st



2/9
  Time :
0315
1115
0900
1130
0015
1145
1030
1215




1115
   2018 :
30.66 30.79 30.60 30.46 30.38 30.26 30.42 30.24 30.39 30.50 30.64 30.60 30.79
  AVERAGE PRESSURE : (in.)
30.06
30.10
30.10
29.97
29.95
29.90
29.93
29.94





  Departure from Normal  :
+0.06 +0.06 +0.11 -0.01 -0.01 -0.06 -0.05 -0.08




  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
   2018 :
30.0930.0930.01 29.96 30.0029.94 30.04 29.99 30.14
30.03 30.05 30.06 30.03
  LOWEST PRESSURE :
29.33
29.16
29.47
29.20
29.60
29.55
29.68
29.60




29.16
  Date :
1st
24th
14th
26th
30th
20th
11th
8th




2/24
  Time :
0000
1115
2345
1100
1900
1815
1430
1300




1115
   2018 :
29.40 29.49 29.57 29.20 29.55 29.64 29.71 29.63 29.66 29.59 29.37 29.24 29.20
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  THUNDERSTORM :
-
1
1
1
4
1
9
7




24
   2018 :
- --114552
1
-- 19
  FUNNEL CLOUD/WATERSPOUT :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  RAIN :
8
9
9
19
19
14
16
13




107
   2018 :
77616 131314 13 13
1912 10143
  DRIZZLE :
0
6 1
8
6
2
-
-




23
   2018 :
6233-1-- 2
54 430
  HAIL :
-
- -
-
-
-
-
-




1
   2018 :
- - - - - -1 - -
- - - 1
  FREEZING RAIN : 4
4 1
-
-
-
-
-




9
   2018 :
-1- 2- - - - -
- 1-4
  FREEZING DRIZZLE : 1
3 -
-
-
-
-
-




4
   2018 :
- 1- - - - - - -
- 1-2
  ICE PELLETS :
1
2 1
2
-
-
-
-




6
   2018 :
2 --
2-
- - - -
- 1-5
  SNOW : 23
16 12
2
-
-
-
-




53
   2018 :
1712 13 13- - - - -
1131483
  SNOW PELLETS :  1
- -
-
-
-
-
-




1
   2018 :
- -11- -
- - -
111 5
  SNOW GRAINS : 3
- -
-
-
-
-
-




3
   2018 :
221- - -
- - -
- - 27
  ICE CRYSTALS : -
- -
-
-
-
-
-




0
   2018 :
- 1- - - - - - -
- - - 1
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  FOG : 1
2 -
3
8
6
1
-




21
   2018 :
25 1852-- -
3 4 333
  FREEZING FOG : -
2
2
-
-
-
-
-

-
-
-
4
   2018 :
- - - - - - - - -
- - -0
  ICE FOG : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  BLOWING SNOW : 2
-
-
-
-
-
-
-

-
-
-
2
   2018 :
- - - - - - - - -
- - - 0
  HAZE : -
- 1
5
4
2
4
-




16
   2018 :
- --141 2 63
- -118
  SMOKE : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  BLOWING DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  BLOWING SAND : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 DAYS WITH : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  AURORA : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  EARTHQUAKE : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
 BRIGHT SUNSHINE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  BRIGHT SUNSHINE DURATION : (h)
78 107 186 186 243 263 257 217




   2018 :
98
107
195
199
285
251
257
227
173
112
57
34
1995
  HIGHEST SOLAR RADIATION : (W/mē)
695
973
1103
1253
1175
1320
1302
1144




1320
  Date :
27th
28th
7th
15th
25th
25th
21st
9th




6/25
  Time :
1145
1235
1143
1529
1419
1314
1408
1414




1314
   2018 :
635781871 1140 1103 1253 1174 1221 1033 887 672 556 1253
  AVERAGE DAILY MAX SOLAR RADIATION : (W/mē)
401
493
755
843
872
1043
1052
966





   2018 :
410467665 782 924933938 913 758 561 350 261 664
  DARKEST SKY : (m/asē)
20.46
19.80
20.27
20.29
20.21
20.26
20.27
20.34




20.46
  Date :
1st
5th
15th
10th
26th
11th
1st
29th




1/1
  Time :
0456
1917
0525
0255
0035
0250
0046
0331




0456
   2018 :
20.22
20.30
20.02
20.09
20.36
20.19
20.24
20.45
20.44
20.90
20.28
20.20
20.90
  AVERAGE DAILY MAX DARKEST SKY : (m/asē)
19.15
18.60
19.38
19.37
19.46
19.70
19.78
19.94





   2018 :
19.1719.1919.4819.2519.6519.7219.8019.7719.8719.5419.1319.0819.47
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2019
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.