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










19.7
  Date : 12th
23rd










2/23
  Time : 0231 1412









1412
   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











  Departure from Normal  :
+3.7
+6.5











  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











  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











  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










-13.9
  Date : 7th
3rd










1/7
  Time : 0717 0603









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










100
  Date : 3rd+
24th










1/3+
  Time : 1842
2231










1842
  AVERAGE RELATIVE HUMIDITY : (%)
80
73










 
  Departure from Normal  :
+6 +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










38
  Date : 8th
19th










1/8
  Time : 1343
1437










1343
 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










12.9
  Date : 12th
23rd










2/23
  Time : 0538
1201










1201
  AVERAGE DEW POINT : (°C) -4.0
-3.4










4.8
  Departure from Normal  :
+5.4
+6.2










+1.6
  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










-20.1
  Date : 8th
9th










1/8
  Time : 1359
0840










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











  % of Normal  :
106%
113%











  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










19.9
  Date : 12th
7th










2/7
   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










62.0
  Date : 12th
7th










1/12
  Time : 0347
1505










0347
   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











  % of Normal  :
15%
34%











  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










4.6
  Date : 31st
12th










2/12
   2016 :
13.4 10.4 6.0 9.2 TR -
- - -
0.6 0.8 12.6 13.4
  Highest Snow on Ground : 2
4










4
  Date : 1st+
13th+










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










 
   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










32
  HIGHEST WIND DIRECTION : 200
230










200
  Date : 11th
7th










1/11
  Time : 0027
2229










0027
   2016 :
28 35 29 32 23 17 17 23 23 27 30 26 35
  AVERAGE DAILY PK GUST : (kt)
16.4
17.1











   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











   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










30.79
  Date :
13th
20th










1/13
  Time :
1945
1030










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











  Departure from Normal  :
-0.05 -0.14










  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










29.22
  Date :
26th
7th










2/7
  Time :
0445
2200










2200
   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










2
   2016 :
- - 3 1 1 3 3 5 3
1 - - 20
  FUNNEL CLOUD/WATERSPOUT :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2016 :
- - - - - - - - -
- - - 0
  RAIN :
13
8










21
   2016 :
9 11 17 10 10 16 11 15 12
16 14 8 149
  DRIZZLE :
7
1










8
   2016 :
2 2 3 - 2 - - - 1
- 2 2 14
  HAIL :
-
-
-
-
-
-
-
-
-
-
-
-
0
   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



-
-
-
-



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



-
-
-
-



35
   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










12
   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










2
   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)
87.1
150.4











   2016 :













  HIGHEST SOLAR RADIATION : (W/m²)
716
867










867
  Date :
29th
25th










2/25
  Time :
1330
1319










1319
   2016 :
677 843 959 1385 1219 1283 1184 1093 933 913 681 581 1385
  AVERAGE DAILY MAX SOLAR RADIATION : (W/m²)
307
526











   2016 :
350 538 583 809 963 1016 992 919 734 596 438 293 686
  DARKEST SKY : (m/as²)
20.47
20.58










20.58
  Date :
27th
23rd










2/23
  Time :
0401
0312










0312
   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.



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