XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2017
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2017 :   
 TEMPERATURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  RECORD HIGHEST 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 : 12.2
19.7
18.7
24.2
30.1
32.2
31.0
30.2
32.7
27.9


32.7
  Date : 12th
23rd
24th
16th
18th
12th
31st
21st
26th
4th


9/26
  Time : 0231 1412 1642 1437 1511 1341 1427 1323 1500 1251

1500
   2016 :
11.9
14.8
21.4
25.4 34.2
33.6 35.8
34.1
34.8 25.4 21.1 12.2
35.8
  AVERAGE HIGH TEMPERATURE : 1.7
5.3
4.3
14.0
17.4
24.8
26.5
25.6
23.8
19.2



  Departure from Normal  :
+3.7
+6.5
+0.1
+2.9
-1.1
+0.9
-0.2
+0.1
+3.4
+5.8



  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
   2016 :
1.2 3.3
8.2 9.5
20.9
25.9
29.3 29.7
24.5
17.1 12.1
1.8
15.3
  AVERAGE TEMPERATURE : (°C)
-1.1
1.0
0.4
9.2
12.8
19.6
21.8
20.5
18.5
14.2



  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 : -3.9
-3.4
-3.6
4.4
8.3
14.4
17.0
15.5
13.3
9.1



  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 : -13.9
-10.6
-11.3
-0.3
0.9
8.4
13.2
11.3
5.7
1.2


-13.9
  Date : 7th
3rd
5th
7th
9th
2nd
26th
24th
30th
26th


1/7
  Time : 0717 0603 0406 0848 0451 0444 0507 0512 2320 0808

0717
   2016 :
-15.6 -20.4 -9.5
-7.0 1.8 7.3
10.8 13.9 9.1
-1.2 -5.2 -13.8 -20.4
  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
  2017
 RELATIVE HUMIDITY : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST RELATIVE HUMIDITY : 100
100
98
99
100
98
98
98
98
100


100
  Date : 3rd+
24th
27th+
6th+
5th+
4th+
13th+
18th
21st+
10th


1/3+
  Time : 1842
2231
0100
0947
1708
2330
1700
0600
0716
0300


1842
  AVERAGE RELATIVE HUMIDITY : (%)
80
73
69
72
73
69
73
74
73
73


 
  Departure from Normal  :
+6 +4 -3 +10 +5 +1 +5 +2 -4 -4

 
  Normal  :
74
69
72
62
68
68
68
72
77
77
79
80
72
   2016 :
75
72
73
67
62
60
64
68
70
74 75 78
70
  LOWEST RELATIVE HUMIDITY : 38
42
19
20
27
23
32
36
31
30


19
  Date : 8th
19th
21st+
8th
8th
2nd
30th
10th
2nd
3rd+


3/21+
  Time : 1343
1437
1432
1434
1430
1931
1524
1526
1144
1421


1432
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 DEW POINT : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST DEW POINT : 11.1
12.9
13.4
17.3
19.4
21.9
23.6
23.6
23.3
20.3


23.6
  Date : 12th
23rd
27th
19th
29th
23rd
12th
22nd
26th
4th


7/12+
  Time : 0538
1201
1259
1807
1301
1601
1205
1246
1140
1422


1205
  AVERAGE DEW POINT : (°C) -4.0
-3.4
-4.9
3.9
7.7
13.3
16.6
15.8
13.8
9.2


 
  Departure from Normal  :
+5.4
+6.2
-0.6
+3.6
+0.7
+1.0
+1.3
+0.5
+2.3
+3.7


 
  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
   2016 :
-6.1 -5.7 -0.5 -0.9 7.0 10.3
15.3 17.6 13.8
8.3 3.3 -4.3 4.8
  LOWEST DEW POINT : -20.1
-15.2
-18.7
-9.9
-9.8
-2.9
6.7
4.5
1.9
-2.9


-20.1
  Date : 8th
9th
22nd
8th
8th
2nd
4th
31st
2nd
31st


1/8
  Time : 1359
0840
1149
1434
2126
1943
2313
2320
0635
1431


1359
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 PRECIPITATION : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  TOTAL PRECIPITATION : (mm)
76.3
60.6
111.6
180.3
177.9
119.8
96.3
68.3
28.2
112.4



  % of Normal  :
106%
113%
178%
236%
233%
148%
125%
92%
30%
150%



  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
   2016 :
42.8 89.9 141.5 67.7 21.8 32.0 37.7 73.0 54.0
70.2 64.1 70.8 765.5
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 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
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 : 15.8
19.9
22.4
52.0
43.1
32.0
21.3
17.6
13.9
63.8


63.8
  Date : 12th
7th
1st+
20th
25th
23rd
7th
12th
4th
9th


10/9
   2016 :
14.9 35.2 33.3 12.8 6.8 12.1 17.0 18.4
16.4 16.2 19.0 15.0 35.2
  HIGHEST RAIN RATE : (mm/h) 62.0
20.2
79.0
160.0
125.2
88.6
174.6
205.8
113.0
77.8


205.8
  Date : 12th
7th
1st
30th
1st
15th
16th
12th
4th
9th


8/12
  Time : 0347
1505
0223
2216
1431
0935
1905
0008
2040
0339


0008
   2016 :
12.8 30.6 137.2 93.0 7.4 91.4 87.2 106.6 79.0 60.6 43.6 54.4 137.2
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 SNOWFALL : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  TOTAL SNOWFALL : (cm)
7.6
11.2
30.0
3.2
0




0



  % of Normal  :
15%
34%
167%
40%
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
   2016 :
29.2 22.2 10.8 41.8 TR -
- - -
0.6 0.8 32.2 137.6
  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 : 2.8
4.6
16.0
3.2
0




0


16.0
  Date : 31st
12th
14th
7th








3/14
   2016 :
13.4 10.4 6.0 9.2 TR -
- - -
0.6 0.8 12.6 13.4
  Highest Snow on Ground : 2
4
22
2
0




0


22
  Date : 1st+
13th+
14th
7th








3/14
   2016 : 13 16 9 12 TR -
- - -
TR TR 18 18
  Average Snow on Ground : TR
1
2
TR
0




0


 
   2016 :
3 3 1 1
0 -
- - -
00 6 5
  Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 WIND : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST WIND SPEED : (kt)
32
27
33
37
28
23
24
22
30
30


37
  HIGHEST WIND DIRECTION : 200
230
230
230
180
210
360
360
020
080


230
  Date : 11th
7th
8th
10th
18th
18th
20th
31st
29th
11th


4/10
  Time : 0027
2229
1402
1443
1726
1508
1208
1814
2238
1546


1443
   2016 :
28 35 29 32 23 17 17 23 23 27 30 26 35
  AVERAGE DAILY PK GUST : (kt)
16.4
17.1
19.3
19.0
15.9
14.2
11.7
11.3
11.2
16.1



   2016 :
18.2
18.9
18.2
17.0
13.5
12.7
12.5
11.4
13.5
14.5
15.7
16.5
15.2
  PREVAILING WIND DIRECTION :
SW
SW
N
N
N
SSW
SW






   2016 :
SW
SW
SW
NNE
SW
NNE
SW
SW
SW
SW
SSW
SW
SW
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 PRESSURE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  HIGHEST PRESSURE :
30.79
30.39
30.74
30.50
30.37
30.15
30.26
30.36
30.56
30.49


30.79
  Date :
13th
20th
4th
13th
20th
7th
25th
26th
10th
3rd


1/13
  Time :
1945
1030
1145
0945
1200
1130
2215
1015
1000
0845


1945
   2016 :
30.69 30.63 30.40 30.52 30.27 30.24 30.25 30.24 30.32 30.50 30.44 30.75 30.75
  AVERAGE PRESSURE : (in.)
29.95
29.90
30.11
29.95
29.86
29.90
29.98
30.03
30.07
30.04



  Departure from Normal  :
-0.05 -0.14 +0.12 -0.03 -0.10 -0.06 0.00 +0.01 +0.03 -0.01


  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
   2016 :
29.96 29.96 29.98 30.04 29.95 29.90 29.91 29.97 30.05
30.08 30.03 30.04 29.99
  LOWEST PRESSURE :
29.37
29.22
29.21
29.25
29.39
29.52
29.70
29.66
29.52
29.41


29.21
  Date :
26th
7th
1st
6th
6th
23rd
8th
22nd
4th
30th


3/1
  Time :
0445
2200
1800
1700
1200
1345
0115
1730
2015
0430


1800
   2016 :
29.09 29.18 29.34 29.24 29.46 29.43 29.64 29.54 29.66 29.53 29.42 29.46 29.09
 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
  THUNDERSTORM :
-
2
1
4
6
7
9
8
1
1


39
   2016 :
- - 3 1 1 3 3 5 3
1
- - 20
  FUNNEL CLOUD/WATERSPOUT :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  RAIN :
13
8
9
15
22
21
14
14
9
16


131
   2016 :
9 11 17 10 10 16 11 15 12
16 14 8 149
  DRIZZLE :
7
1
5
-
4
-
2
-
-
3


22
   2016 :
2 2 3 - 2 - - - 1
- 2 2 14
  HAIL :
-
-
-
-
-
1
1
-
-
-
-
-
2
   2016 :
- - - - - - - - -
- - - 0
  FREEZING RAIN : 1
2
-
-
-
-
-
-
-
-


3
   2016 :
- - 2 1 - - - - -
- 1 3 7
  FREEZING DRIZZLE : -
-
-
-
-
-
-
-
-
-


0
   2016 :
- 2 - - - - - - -
- 2 1 5
  ICE PELLETS :
2
1
2
-
-
-
-
-
-
-


5
   2016 :
- 2 3
1 1
- - - -
1 - - 8
  SNOW : 21
14
14
2
-
-
-
-
-
-


51
   2016 :
21 16 7 6 1 - - - -
1 2 20 74
  SNOW PELLETS :  -
2
-
-
-
-
-
-
-
-


2
   2016 :
- 2 - 1 1 -
- - -
- - 1 5
  SNOW GRAINS : -
-
-
-
-
-
-
-
-
-


4
   2016 :
- 1 - - - -
- - -
- - 3 4
  ICE CRYSTALS : -
-
-
-
-
-
-
-
-
-


0
   2016 :
1 - - - - - - - -
- - 1 2
 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
  FOG : 7
5
2
6
7
3
1
-
1
3


35
   2016 :
1 3 6 - 2 - 1 - -
- 2 - 15
  FREEZING FOG : -
-
-
-
-
-
-
-
-
-


0
   2016 :
- 1 - - - - - - -
- - - 1
  ICE FOG : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  BLOWING SNOW : -
-

-
-
-
-
-
-
-


0
   2016 :
1 - - 1 - - - - -
- - - 2
  HAZE : -
2
1
-
2
1
2
2
6
-


16
   2016 :
1 - - 2 4 - 4 - 1
- 1 - 13
  SMOKE : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  BLOWING DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  BLOWING SAND : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 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
   2016 :
- - - - - - - - -
- - - 0
  EARTHQUAKE : -
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
 BRIGHT SUNSHINE : Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  BRIGHT SUNSHINE TIME : (h)
52 112
171
188
227
254
238
219
201
138



   2016 :













  HIGHEST SOLAR RADIATION : (W/m²)
716
867
1012
1128
1156
1204
1170
1066
1094
801


1204
  Date :
29th
25th
11th
4th
7th
25th
27th
18th
7th
25th


6/25
  Time :
1330
1319
1246
1304
1352
1409
1302
1345
1251
1153


1409
   2016 :
677 843 959 1385 1219 1283 1184 1093 933 913 681 581 1385
  AVERAGE DAILY MAX SOLAR RADIATION : (W/m²)
307
526
656
770
810
977
925
912
777
589



   2016 :
350 538 583 809 963 1016 992 919 734 596 438 293 686
  DARKEST SKY : (m/as²)
20.47
20.58
20.61
20.54
20.77
20.67
20.51
20.79
20.53
20.64


20.79
  Date :
27th
23rd
2nd
28th
22nd
20th
12th
18th
27th+
13th


8/18
  Time :
0401
0312
0211
0232
0225
0049
2308
0258
0020
0038


0258
   2016 :













 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2017
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.