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
 30.6
 32.0
 13.6
 13.5
 33.4
  Date : 1st
 4th
 15th
 18th
 19th
 28th
 20th
 6th
 22nd
 1st
 26th
 27th
 7/20
  Time : 0040 1449 0117 1644 1651 1432 1442 1108 1510 1418 1304 1227 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
 23.3
 16.0
 5.5
 3.4
 13.4
  Departure from Normal  :
+0.9
 +3.1
 +1.0
 0.0
 		-1.0
 		-0.4
 		+1.9
 +0.8
 +2.9
 +2.6
 -1.5
 		+2.6
 +1.0
  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
 18.4
 11.4
 1.7
 -0.1
 8.8
  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
 13.5
 6.9
 -2.0
 -3.6
 4.1
  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 : -22.6
 -20.7
 -15.1
 -6.8
 2.6
 4.9
 13.6
 12.0
 9.4
 0.8
 -13.0
 -15.5
 -22.6
  Date : 31st
1st
 5th
 1st
 11th
 3rd
 1st
 31st
 27th
 19th
 13th
 19th
 1/31
  Time : 0411 0737 0402 0623 0602 0548 0543 0206 0512 0744 0502 0443 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
 96
 100
 95
 100
 100
  Date : 8th
7th+
 30th
 19th+
 4th+
 16th
 3rd
 6th+
 1st+
 31st
 2nd+
 26th+
 3/30+
  Time : 1656
1740
1530
1928
0400
0300
0431
 		0127
 		2030
 		0020
 		2129
 		0002
 		1527
  AVERAGE RELATIVE HUMIDITY : (%)
75
76
 67
 74
 76
 71
 73
 71
 74
 76
 75
 80
 74
  Departure from Normal  :
+1 +7 -5 +12 +8 +3 +5 -1 -3 -1 -4 0 +2
  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
 33
 29
 40
 41
 16
  Date : 26th
1st
 27th
 3rd
 21st
 23rd
 8th+
 3rd
 26th
 13th
 5th+
 18th
 3/27
  Time : 1251
1402
 1527
 1539
 1634
 1845
 1517
 1223
 1512
 1453
 1255
 1252
 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
 22.6
 21.4
 10.4
 10.6
 27.0
  Date : 1st
7th+
 15th
 23rd
 23rd
 29th
 19th
 18th
 11th
 1st
 27th
 27th
 7/19
  Time : 0041
2358
 0128
 1624
 1434
 1143
 1231
 1337
 0949
 1212
 1307
 1112
 1231
  AVERAGE DEW POINT : (°C) -8.9
-6.4
 -5.6
 1.9
 8.2
 12.2
 18.1
 15.6
 13.7
 7.6
 -2.0
 -3.1
 4.3
  Departure from Normal  :
+0.5
 +3.2
 -1.3
 		+1.6 +1.2 -0.1
 		+2.8 +0.3 +2.2 +2.1 -2.4
 		+2.5 +1.1
  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
 4.2
 -1.0
 -15.0
 -19.3
 -27.9
  Date : 30th+
1st
 6th
 3rd+
 8th
 2nd
 8th
 3rd
 5th
 14th
 13th
 19th
 1/30+
  Time : 2356
0429
 1511
 1539
 2317
 2333
 1642
 1223
 1846
 1358
 0502
 0418
 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
 54.2
 146.8
 50.6
 112.5
 1141.9
  % of Normal  :
99% 161%
 109%
 148%
 219%
 122%
 88% 142%
 58% 196%
 72% 153%
 129%
  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
 23.4
 33.0
 4.0
 22.9
 33.5
  Date : 23rd
12th
 30th
 14th
 1st
 10th
 30th
 6th
 11th
 27th
 27th
 1st
 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
 185.8
 140.4
 7.6
 10.6
 303.2
  Date : 7th
12th
 10th
 14th
 23rd
 25th
 16th
 8th
 11th
 16th
 21st
 14th
 8/8
  Time : 2017
2207
 0122
 2026
 1002
 0049
 1334
 1510
 0028
 0539
 1833
 0904
 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



0
26.0
24.6
158.0
  % of Normal  :
94%
 108%
 142%
 0%
 0%



0%
 433%
 74%
 107%
  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



0
 21.6
 9.4
 18.4
  Date : 19th
 		27th
 		31st
 		1st+
 		-



-
 		11th
 		17th
 		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



0
 22
 14
 23
  Date : 29th
 		1st+
 		31st
 		1st
 		-



-
 		11th
 		18th
 		1/29
   2018 : 20 32267--
- - -
TR10 432
  Average Snow on Ground : 6
6
 5
 TR
 0



0
 4
 4
 2.1
   2018 :
71151
--
- - -
01TR2.1
  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
 24
 32
 28
 26
 36
  HIGHEST WIND DIRECTION : 030
220
 230
 020
 360
 080
 270
 250
 040
 200
 220
 220
 220
  Date : 19th+
24th
 10th
 14th
 15th
 8th+
 20th
 19th
 29th
 31st
 27th
 30th
 2/24
  Time : 1628
1340
 1251
 1958
 1611
 1613
 2157
 0002
 0831
 2310
 1659
 1238
 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
 12.2
 16.4
 16.9
 16.2
 15.1
   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
 SSW
 SSW
 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
 30.41
 30.42
 30.57
 30.66
 		30.82
  Date :
22nd
9th
 27th
 4th
 1st
 8th+
 26th 31st 29th 4th+ 16th 20th 2/9
  Time :
0315
1115
 0900
 1130
 0015
 1145
 1030
 1215
 1030
 2345
 1045
 1100
 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
 30.05
 29.99
 30.03
 29.99
 30.00
  Departure from Normal  :
+0.06 +0.06 +0.11 -0.01 -0.01 -0.06 -0.05 -0.08 +0.01 -0.06 +0.01 -0.04 -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
   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
 29.66
 29.30
 29.31
 29.35
 29.16
  Date :
1st
24th
 14th
 26th
 30th
 20th
 11th
 8th
 26th
 31st
 27th
 30th
 2/24
  Time :
0000
1115
 2345
 1100
 1900
 1815
 1430
 1300
 0515
 1815
 1345
 0745
 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
4
3
 -
-
31
   2018 :
- --114552
1
 -- 19
  FUNNEL CLOUD/WATERSPOUT :
-
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  RAIN :
 8
 9
9
 19
 19
 14
 16
 13
 17
 19
 12
 7
162
   2018 :
77616 131314 13 13
1912 10143
  DRIZZLE :
 -
 6 1
 8
 6
 2
 -
 -
 -
 3
 1
 6
33
   2018 :
6233-1-- 2
54 430
  HAIL :
 -
 - -
 -
 -
 -
 -
 -
 -
 -
 -
 -
0
   2018 :
- - - - - -1 - -
- - - 1
  FREEZING RAIN : 4
 4 1
 -
 -
 -
 -
 -
 -
 -
 -
 1
10
   2018 :
-1- 2- - - - -
- 1-4
  FREEZING DRIZZLE : 1
 3 -
 -
 -
 -
 -
 -
 -
 -
 -
 2
6
   2018 :
- 1- - - - - - -
- 1-2
  ICE PELLETS :
 1
 2 1
 2
 -
 -
 -
 -
 -
 -
 1
 2
9
   2018 :
2 --
2-
- - - -
- 1-5
  SNOW : 23
 16 12
 2
 -
 -
 -
 -
 -
 -
 9
 14
76
   2018 :
1712 13 13- - - - -
1131483
  SNOW PELLETS :  1
 - -
 -
 -
 -
 -
 -
 -
 -
 -
 -
1
   2018 :
- -11- -
- - -
111 5
  SNOW GRAINS : 3
- -
-
-
-
-
-
-
-
 2
1
6
   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
-
-
2
 -
5
28
   2018 :
25 1852-- -
3 4 333
  FREEZING FOG : -
2
 2
-
-
-
-
-
-
-
 -
1
5
   2018 :
- - - - - - - - -
- - -0
  ICE FOG : -
-
-
-
-
-
-
-
-
-
-
-
0
   2018 :
- - - - - - - - -
- - - 0
  BLOWING SNOW : 2
-
 -
-
-
-
-
-
-
-
1
-
3
   2018 :
- - - - - - - - -
- - - 0
  HAZE : -
- 1
5
4
2
4
-
1
-
 5
3
25
   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)
78 107 186 186 243 263 257 217 180 134 73 53 1977
   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
 1168
 845
 655
 547
 1320
  Date :
27th
28th
 7th
 15th
 25th
 25th
 21st
 9th
 9th
 12th
 3rd
 15th
 6/25
  Time :
1145
1235
 1143
 1529
 1419
 1314
 1408
 1414
 1248
 1247
 1051
 1212
 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
 805
 542
 402
 288
 705
   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
 20.28
 20.48
 20.20
 20.07
 20.48
  Date :
1st
5th
 15th
 10th
 26th
 11th
 1st
 29th
 7th
 27th
 28th
 24th
 10/27
  Time :
0456
1917
 0525
 0255
 0035
 0250
 0046
 0331
 0221
 0631
 0101
 0540
 0631
   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
 19.89
 19.84
 19.42
 19.18
 19.48
   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.