XGY   Grimsby Mountain, ON
Weather Observed At   43-11-00  N    79-33-34  W
2018
Note all stats on this page use calendar days (0000-2359). MSC stats use "climate days".    
  2018 :   
 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 : 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
  Date : 11th
 21st
 18th
 30th
 28th
 18th
 16th
 6th
 3rd
 9th
 6th
 2nd
 7/16
  Time : 1359 0028 1544 1501 1526 1218 1604 1254 1259 1418 1241 1345 1604
   2017 :
12.2
19.7
18.7
24.2 30.1
32.2 31.0
30.2
32.7 27.9 16.7 11.3
32.7
  AVERAGE HIGH TEMPERATURE : -0.6
3.8
 3.8
 8.2
 22.1
 24.3
 28.9
 28.1
 23.6
 14.5
 4.9
 3.4
 13.8
  Departure from Normal  :
+1.4
 +5.0
 -0.4
 -2.9
 +2.6
 +0.4
 +2.2
 +2.6
 +3.2
 +1.1
 -2.1
 +2.6
 +1.4
  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
   2017 :
1.7 5.3
4.3 14.0
17.4
24.8
26.5 25.6
23.8
19.2 8.3
-0.8
14.2
  AVERAGE TEMPERATURE : (°C)
 -4.9
 -0.7
 0.3
 3.8
 16.3
 19.5
 23.6
 23.4
 19.1
 10.3
 2.1
 0.5
 9.4
  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 : -9.1
 -5.3
 -3.2
 -0.7
 10.4
 14.6
 18.3
 18.6
 14.7
 6.0
 -0.8
 -2.4
 5.1
  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 : -22.9
 -14.7
 -7.5
 -5.7
 4.1
 9.6
 13.2
 12.7
 5.9
 -0.4
 -10.8
 -8.6
 -22.9
  Date : 6th
13th
 13th
 7th
 11th
 12th
 29th
 23rd
 23rd
 18th
 22nd
 9th
 1/6
  Time : 0731 0743 0737 0645 0412 0457 0434 0522 0702 0735 0357 0544 0731
   2017 :
-13.9 -10.6 -11.3 -0.3 0.9 8.4 13.2 11.3 5.7 1.2 -9.0 -22.1 -22.1
  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
  2018
 RELATIVE HUMIDITY : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  HIGHEST RELATIVE HUMIDITY : 100
 97
 99
 100
 98
 98
 96
 96
 100
 100
 100
 100
 100
  Date : 22nd+
15th+
 29th
 3rd+
 3rd+
 23rd+
 22nd
 4th+
 25th
 2nd+
 1st+
 21st
 1/22+
  Time : 0020
1914
 1000
 2138
 2207
 1719
 1005
 0114
 0954
 1349
 1605
 0337
 0020
  AVERAGE RELATIVE HUMIDITY : (%)
74
76
 67
 70
 66
 70
 67
 75
 78
 78
 78
 82
 73
  Departure from Normal  :
0 +7 -5 +8 -2 -2 -1 +3 +1 +1 -1 +2 +1
  Normal  :
74
69
 72
 62
 68
 68
 68
 72
 77
 77
 79
 80
 72
   2017 :
80
73
69
72
73
69
73
74
73
73 74 74
73
  LOWEST RELATIVE HUMIDITY : 40
 34
 28
 12
 18
 25
 18
 37
 42
 40
 38
 48
 12
  Date : 6th
27th
 4th+
 30th
 1st
 16th
 10th
 24th
 29th
 16th
 14th
 8th
 4/30
  Time : 1336
1452
 1358
 1508
 1725
 1635
 1431
 1531
 1427
 1426
 1124
 1219
 1508
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 DEW POINT : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  HIGHEST DEW POINT : 11.6
 14.8
 7.1
 10.8
 23.3
 26.3
 25.0
 24.9
 25.0
 22.3
 12.7
 11.2
 26.3
  Date : 12th
20th
 28th
 12th
 31st
 30th
 2nd
 6th+
 5th
 4th
 6th
 2nd
 6/30
  Time : 0410
1549
 0234
 1256
 1340
 1334
 1238
 1329
 1305
 0944
 1055
 1200
 1334
  AVERAGE DEW POINT : (°C) -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
  Departure from Normal  :
+0.8
 +5.3
 -1.2
 -2.4
 +2.1
 +0.8
 +1.1
 +3.5
 +3.7
 +0.9
 -1.7
 +3.4
 +1.4
  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
   2017 :
-4.0 -3.4 -4.9 3.9 7.7 13.3
16.6 15.8 13.8
9.2 -0.1 -8.0 5.0
  LOWEST DEW POINT : -27.2
 -19.5
 -16.6
 -13.4
 -10.3
 1.3
 3.8
 6.1
 3.1
 -4.4
 -16.8
 -11.0
 -27.2
  Date : 6th
2nd
 19th
 30th
 12th+
 11th
 10th
 22nd
 29th
 21st
 22nd
 9th
 1/6
  Time : 0731
1553
 1851
 1045
 1826
 1702
 1431
 1951
 1702
 1056
 1133
 0544
 0731
  Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  2018
 PRECIPITATION : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  TOTAL PRECIPITATION : (mm)
 78.3
 92.6
 69.9
 150.3
 70.1
 55.6
 67.5
 89.5
 69.4
 108.7
 125.7
 72.8
 1050.4
  % of Normal  :
109%
 173%
 112%
 197%
 92% 69% 88% 121%
 74% 145%
 180%
 99% 119%
  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
   2017 :
76.3 60.6 111.6 180.3 177.9 119.8 96.3 68.3 28.2
112.4 88.6 52.7 1173.0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 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 : 15.3
 11.8
 23.0
 27.0
 17.4
 14.4
 41.3
 19.4
 26.6
 21.0
 43.4
 22.2
 43.4
  Date : 22nd
20th
 29th
 16th
 15th
 24th
 22nd
 18th
 3rd
 27th
 1st
 21st
 11/1
   2017 :
15.8 19.9 22.4 52.0 43.1 32.0 21.3 17.6
13.9 63.8 19.8 11.4 63.8
  HIGHEST RAIN RATE : (mm/h) 26.6
 31.8
 19.6
 34.0
 125.2
 88.6
 180.0
 169.4
 198.6
 73.8
 53.4
 27.2
 198.6
  Date : 12th
20th
 31st
 4th
 15th
 18th
 26th
 8th
 3rd
 4th
 2nd
 21st
 9/3
  Time : 0955
0218
 2054
 0001
 0337
 1407
 1757
 1548
 1406
 0617
 0128
 0139
 1406
   2017 :
62.0 20.2 79.0 160.0 125.2 88.6 174.6 205.8 113.0 77.8 42.0 17.6 205.8
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 SNOWFALL : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  TOTAL SNOWFALL : (cm)
 23.4
 39.4
 35.6
 11.0
 -



TR
 22.4
 11.2
 143.0
  % of Normal  :
47%
 121%
 198%
 136%
 0%



-
 373%
 34%
 97%
  Normal :
49.6
32.6
18.0
8.1
0.2
0
0
0
0
0.1
6.0
33.4
148.0
   2017 :
7.6 11.2 30.0 3.2 0 -
- - -
0 0.6 59.4 112.0
  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 : 6.6
 15.4
 16.4
 4.0
 -



TR
 7.6
 3.4
 16.4
  Date : 29th
 7th
 1st
 15th




17th+
 15th
 8th
 3/1
   2017 :
2.8 4.6 16.0 3.2 0 -
- - -
0 0.6 8.4 16.0
  Highest Snow on Ground : 20
 32
 26
 7
 -



TR
 10
 4
 32
  Date : 8th
 11th
 2nd
 15th+




17th+
 28th
 8th
 2/11
   2017 : 2 4 22 2 0 -
- - -
0 1 19 22
  Average Snow on Ground : 7
11
 5
 1
 -



0
 1
 TR
 2.1
   2017 :
TR 1 2 TR
0 -
- - -
0TR 7 0.8
  Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  2018
 WIND : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  HIGHEST WIND SPEED : (kt)
 30
 29
 30
 35
 36
 18
 22
 21
 24
 26
 28E
 22
 36
  HIGHEST WIND DIRECTION : 020
200
 360
 360
 210
 050
 360
 200
 080
 200
 230
 200
 210
  Date : 13th+
25th
 1st
 14th
 4th
 10th+
 22nd
 29th
 9th
 19th
 6th
 3rd
 5/4
  Time : 0100
1150
 1959
 2023
 1458
 1422
 0719
 1002
 1828
 2237
 M
 0041
 1458
   2017 :
32 27 33 37 28 23 24 22 30 30 31 28 37
  AVERAGE DAILY PK GUST : (kt)
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
   2017 :
16.4
17.1
 19.3
 19.0
 15.9
 14.2
 11.7
 11.3
 11.2
 16.1
17.0
15.9
 15.4
  PREVAILING WIND DIRECTION :
SSW
SSW
 N
 N
 SSW
 N
 SSW
 SSW
 N
 SSW
 SW
 SSW
 SSW
   2017 :
SW
SW
N
N
N
SSW
SW
SW
SW
SW
SSW
SW
SW
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 PRESSURE : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  HIGHEST PRESSURE :
 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
  Date :
14th
13th
 26th
 21st
 18th
 26th
 7th
 31st
 24th
 18th
 22nd
 27th
 2/13
  Time :
1045
0815
 1000
 0845
 1130
 0330
 1000
 0030
 0815
 1200
 1030
 0330
 0815
   2017 :
30.79 30.39 30.74 30.50 30.37 30.15 30.26 30.36 30.56 30.49 30.65 30.61 30.79
  AVERAGE PRESSURE : (in.)
30.09
30.09
 30.01
 29.96
 30.00
 29.94
 30.04
 29.99
 30.14
 30.03
 30.05
 30.06
 30.03
  Departure from Normal  :
+0.09 +0.05 +0.02 -0.02 +0.04 -0.02 +0.06 -0.03 +0.10 -0.02 +0.03 +0.03 +0.02
  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
   2017 :
29.95 29.90 30.11 29.95 29.86 29.90 29.98 30.03 30.07
30.04 30.04 30.02 29.99
  LOWEST PRESSURE :
 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
  Date :
23rd
25th
 15th
 4th
 4th
 13th
 22nd
 21st
 21st
 11th
 26th
 21st
 4/4
  Time :
0915
0845
 0945
 0445
 1645
 1515
 1045
 2015
 1715
 0600
 1345
 1300
 0445
   2017 :
29.37 29.22 29.21 29.25 29.39 29.52 29.70 29.66 29.52 29.41 29.10 29.53 29.10
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 DAYS WITH : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  THUNDERSTORM :
-
-
 -
1
1
 4
5
5
2
1
 -
-
19
   2017 :
- 2 1 4 6 7 9 8 1
1
 1 - 40
  FUNNEL CLOUD/WATERSPOUT :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  RAIN :
 7
 7
 6
 16
 13
 13
 14
 13
 13
 19
 12
 10
143
   2017 :
13 8 9 15 22 21 14 14 9
16 17 3 151
  DRIZZLE :
 6
 2
 3
 3
 -
 1
 -
 -
 2
 5
 4
 4
30
   2017 :
7 1 5 - 4 - 2 - -
34 1 27
  HAIL :
 -
 -
 -
 -
 -
 -
 1
 -
 -
 -
 -
 -
1
   2017 :
- - - - - 1 1 - -
- - - 2
  FREEZING RAIN : -
 1
 -
 2
 -
  


-
 1
 -
4
   2017 :
1 2 - - - - - - -
- - 2 5
  FREEZING DRIZZLE : -
 1
 -
 -
 -
  


-
 1
 -
2
   2017 :
- - - - - - - - -
- - 2 2
  ICE PELLETS :
 2
 -
 -
 2
 -
  


-
 1
 -
5
   2017 :
2 1 2
- -
- - - -
- - 1 6
  SNOW : 17
 12
 13
 13
 -



1
 13
 14
83
   2017 :
21 14 14 2 - - - - -
- 6 20 77
  SNOW PELLETS :  -
 -
 1
 1
 -



1
 1
 1
5
   2017 :
- 2 - - - -
- - -
- - 1 3
  SNOW GRAINS : 2
2
 1
-
-




-
 -
2
7
   2017 :
- - - - - -
- - -
- - - 0
  ICE CRYSTALS : -
1
 -
-
-




-
-
-
1
   2017 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 DAYS WITH : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  FOG : 2
5
 1
8
5
2
-
-
-
3
 4
3
33
   2017 :
7 5 2 6 7 3 1 - 1
3 1 - 36
  FREEZING FOG : -
-
 -
-
-
 



-
 -
-
0
   2017 :
- - - - - - - - -
- - 2 2
  ICE FOG : -
-
-
-
-
 
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  BLOWING SNOW : -
-
 -
-
-




-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  HAZE : -
-
 -
1
4
1
2
6
3
-
 -
1
18
   2017 :
- 2 1 - 2 1 2 2 6
- 2 2 20
  SMOKE : -
-
-
-
-
-
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  BLOWING DUST : -
-
-
-
-
-
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 0
  BLOWING SAND : -
-
-
-
-
-
-
-
-
-
-
-
0
   2017 :
- - - - - - - - -
- - - 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
   2017 :
- - - - - - - - -
- - - 0
  EARTHQUAKE : -
-
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 0
   2017 :
- - - - - - - - -
- - - 0
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
 BRIGHT SUNSHINE : Jan
 Feb
 Mar
 Apr
 May
 Jun
 Jul
 Aug
 Sep
 Oct
 Nov
 Dec
 YEAR
  BRIGHT SUNSHINE TIME : (h)
98 107 195 199 285 251 257 227 173 112 57 34 1995
   2017 :
52
112
171
188
227
254
238
219
201
138
70
59
1929
  HIGHEST SOLAR RADIATION : (W/mē)
 635
 781
 871
 1140
 1103
 1253
 1174
 1221
 1033
 887
 672
 556
 1253
  Date :
20th
28th
 16th
 5th
 10th
 4th
 24th
 21st
 6th
 17th
 7th
 8th
 6/4
  Time :
1145
1248
 1218
 1226
 1325
 1351
 1223
 1337
 1252
 1220
 1146
 1230
 1351
   2017 :
716 867 1012 1128 1156 1204 1170 1066 1094 801 704 484 1204
  AVERAGE DAILY MAX SOLAR RADIATION : (W/mē)
410
467
 665
 782
 924
 933
 938
 913
 758
 561
 350
 261
 664
   2017 :
307 526 656 770 810 977 925 912 777 589 393 296 662
  DARKEST SKY : (m/asē)
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
  Date :
28th
24th
 18th+
 8th
 23rd
 20th
 17th
 17th
 11th
 21st
 10th
 31st
 10/21
  Time :
0458
0444
 0415
 0258
 0307
 0211
 0335
 0259
 0024
 0211
 0131
 2358
 0211
   2017 :
20.47
20.58
20.61
20.54
20.77
20.67
20.51
20.79
20.53
20.64
20.28
20.14
20.79
 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
YEAR
  2018
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.