TEMPERATURE (°C) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
RECORD HIGHEST : | 17.8 | 19.7 | 27.0 | 30.6 | 37.2 | 36.1 | 41.1 | 40.6 | 38.3 | 32.0 | 25.8 | 21.0 |
41.1 |
| 1/25 | 2/23 | 3/31 | 4/26 | 5/31 | 6/3 | 7/9 | 8/25 | 9/3 | 10/1 | 11/5 | 12/3 |
7/9 |
1950 | 2017 | 1998 | 1957 | 1919 | 1934 | 1936 | 1948 | 1953 | 2019 | 2022 | 1982 |
1936 | |
AVERAGE MONTHLY HIGH : | 11.9 | 10.8 | 17.5 | 25.0 | 31.1 | 32.8 | 34.0 | 32.8 | 31.4 | 26.1 | 18.5 | 12.8 |
34.8 |
AVERAGE DAILY HIGH : | 0.0 | 1.0 | 5.6 | 12.1 | 19.7 | 24.8 | 27.9 | 26.7 | 22.8 | 15.6 | 8.9 | 2.7 |
14.0 |
RECORD WARM MONTH : | 1.3 | 0.8 | 5.3 | 9.5 | 17.2 | 22.2 | 24.9 | 23.7 | 21.1 | 13.8 | 8.5 | 2.7 |
11.4 |
|
1932 | 1998 | 2000 | 1998 | 1998 | 2005 | 2020+ | 2001 | 2002 | 1947 | 2001 | 2001 |
1998 |
AVERAGE TEMPERATURE : | -3.8 | -3.3 | 1.3 | 7.2 | 14.0 | 19.5 | 22.6 | 21.6 | 18.0 | 11.3 | 4.9 | -0.5 |
9.4 |
RECORD COLD MONTH : | -11.7 | -13.3 | -5.9 | 2.7 | 8.5 | 14.8 | 18.5 | 17.4 | 12.9 | 5.4 | -0.7 | -7.3 |
5.5 |
|
1918 | 1934 | 1960 | 1926 | 1917+ | 1928 | 1920 | 1927 | 1918 | 1925 | 1933 | 1917 | 1917 |
AVERAGE DAILY LOW : | -7.6 |
-7.5 |
-3.0 |
2.3 |
8.4 |
14.2 |
17.4 |
16.6 |
13.2 |
7.0 |
0.9 |
-3.7 |
4.9 |
AVERAGE MONTHLY LOW : | -18.4 | -17.4 | -12.1 | -3.9 | 1.4 | 7.8 | 12.0 | 11.2 | 6.0 | -0.7 | -7.0 | -12.2 | -20.5 |
RECORD LOWEST : | -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 |
| 1/25 | 2/5 | 3/19 | 4/1 | 5/4 | 6/3 | 7/15 | 8/30 | 9/30 | 10/29 | 11/16 | 12/27 |
2/5 |
1945 | 1918 | 1916 | 1923 | 1935 | 1928 | 1930 | 1965 | 1935 | 1965 | 1933 | 1925 | 1918 | |
AVERAGE FIRST FROST : | OCT 24 | ||||||||||||
AVERAGE LAST FROST : | APR 27 | ||||||||||||
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
RELATIVE HUMIDITY (%) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
AVERAGE : |
75 |
73 |
69 |
67 |
68 |
70 |
70 |
72 |
74 |
76 | 75 | 78 | 72 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
DEW POINT (°C) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
AVERAGE : |
-7.3 |
-7.4 |
-4.1 |
0.9 |
7.7 | 13.5 |
16.5 |
16.2 |
13.3 |
7.2 |
1.0 |
-3.7 |
4.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
PRECIPITATION (mm) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
RECORD WET MONTH : | 147.7 | 131.1 | 146.0 | 180.1 | 193.8 | 189.6 | 184.6 | 202.7 | 224.3 | 231.9 | 239.4 | 133.6 | 1164.6 |
| 1932 | 2008 | 1913 | 2017 | 1942 | 2000 | 1992 | 1956 | 2021 | 2021 | 1985 | 1990 | 1996 |
AVERAGE MONTHLY : | 72.6 |
69.8 |
77.1 |
100.9 |
80.9 |
83.2 |
79.3 |
77.2 |
76.6 |
101.8 | 75.4 | 85.3 | 980.1 |
RECORD DRY MONTH : | 9.5 | 17.2 | 18.7 | 15.7 | 12.7 | 14.4 | 13.9 | 11.4 | 7.1 | 9.9 | 10.7 | 19.9 | 540.4 |
|
1961 | 1987 | 1915 | 1946 | 1920 | 1988 | 1918 | 1974 | 1960 | 1952 | 1930 | 1919 | 1941 |
RECORD IN ONE DAY : |
52.1 |
40.6 |
51.6 |
41.9 |
68.6 |
78.0 |
72.6 |
90.2 |
80.3 | 115.3 |
60.2 |
61.0 | 115.3 |
| 1/19 | 2/16 | 3/1 | 4/20 | 5/25 | 6/11 | 7/12 | 8/29 | 9/22 | 10/15 | 11/4 | 12/12 | 10/15 |
1929 | 1954+ | 1972 | 1943 | 1953 | 1922 | 1962 | 1950 | 2021 | 1954 | 1985 | 1944 | 1954 | |
AVERAGE RAIN / SNOW RATIO (%) : | 59/41 | 43/57 | 66/34 | 92/8 | 100/0 | - | - | - | - | 100/0 | 88/12 | 64/36 | 85/15 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
RAINFALL (mm) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
RECORD RAINIEST MONTH : | 130.9 | 100.0 | 144.2 | 175.5 | 193.8 | 189.6 | 184.6 | 202.7 | 224.3 | 231.9 | 230.0 | 127.4 | 1027.2 |
|
1932 | 1938 | 1976 | 2017 | 1942 | 2000 | 1992 | 1956 | 2021 | 2021 | 1985 | 1990 | 2006 |
AVERAGE MONTHLY : | 43.0 | 29.7 | 51.1 | 92.6 | 80.9 | 83.2 | 79.3 | 77.2 | 76.6 | 101.4 | 66.2 | 54.3 | 835.5 |
RECORD LEAST RAINFALL : | 0 | 0 | 4.3 | 14.5 | 12.7 | 14.4 | 13.9 | 11.4 | 7.1 | 9.9 | 10.7 | 0 | 447.5 |
|
1918+ | 1920+ | 1915 | 1946 | 1920 | 1988 | 1918 | 1974 | 1960 | 1952 | 1930+ | 1910 | 1941 |
RECORD IN ONE DAY : | 52.1 |
40.6 |
51.6 |
52.0 |
68.6 |
78.0 |
72.6 |
90.2 |
80.3 |
115.3 |
60.2 |
57.4 | 115.3 |
| 1/19 | 2/16 | 3/1 | 4/20 | 5/25 | 6/11 | 7/12 | 8/29 | 9/22 | 10/15 | 11/4 | 12/21 | 10/15 |
1929 | 1954 | 1972 | 2017 | 1953 | 1922 | 1962 | 1950 | 2021 | 1954 | 1985 | 1949 | 1954 |
|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
SNOWFALL (cm) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
RECORD SNOWIEST MONTH : | 98.6 | 110.4 | 74.8 | 40.0 | 2.5 | 0 | 0 | 0 | 0 | 18.0 | 42.0 | 107.3 | 246.4 |
|
1939 | 1911 | 1916 | 1979 | 1923 | + | + | + | + | 1962 | 1933 | 1944 | 1940 |
AVERAGE MONTHLY : | 34.6 | 38.7 | 22.0 | 6.2 | TR | 0 | 0 | 0 | 0 | 0.1 | 8.1 | 30.1 | 139.8 |
RECORD LEAST SNOWFALL : | 3.0 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.8 | 54.7 |
|
1953 | 1998 | 1985 | + | + | + | + | + | + | + | + | 1950 | 1919 |
RECORD IN ONE DAY : | 50.8 | 40.6 | 38.1 | 27.8 | 2.5 | - | - | - | - | 11.4 | 22.9 | 61.0 | 61.0 |
| 1/31 | 2/15 | 3/18 | 4/6 | 5/10 | - | - | - | - | 10/24 | 11/17 | 12/12 | 12/12 |
1939 | 1911 | 1936 | 1994 | 1923 | - | - | - | - | 1962 | 1920 | 1944 | 1944 |
|
AVERAGE WATER EQUIVALENT RATIO : | 11.7 | 9.6 | 8.5 | 7.6 | 1.7 | - | - | - | - | 1.5 | 8.8 | 9.7 | 10.0 |
RECORD SNOW ON GROUND : | 61 | ||||||||||||
| 12/12 | ||||||||||||
1944 | |||||||||||||
AVERAGE HIGHEST SNOW ON GROUND : | 19 |
27 |
22 |
4 |
0 |
- |
- |
- |
- |
0 |
5 |
15 |
31 |
AVERAGE SNOW ON GROUND : | 8 | 14 | 8 | TR | 0 | - | - | - | - | 0 | 1 | 4 | 3 |
AVG. SNOW ON GROUND AT END OF MONTH : | 12 | 15 | 2 | 0 | 0 | - | - | - | - | 0 | 1 | 6 | |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
PRESSURE (in) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
AVERAGE MONTHLY HIGH : | 30.67 | 30.56 | 30.55 | 30.47 | 30.37 | 30.23 | 30.24 | 30.25 | 30.41 | 30.46 | 30.56 | 30.62 | 30.75 |
AVERAGE SEA-LEVEL PRESSURE : |
30.02 |
30.02 |
30.05 |
29.95 |
29.96 |
29.91 |
29.92 |
29.95 |
30.04 |
30.00 | 30.05 | 30.03 | 29.99 |
AVERAGE MONTHLY LOW : | 29.27 | 29.31 | 29.37 | 29.28 | 29.51 | 29.51 | 29.59 | 29.60 | 29.50 | 29.37 | 29.30 | 29.31 | 29.11 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
DAYS WITH : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
THUNDERSTORM : | 0 | 0 | 1 | 2 | 4 | 6 | 7 | 6 | 3 | 2 | 0 | 0 | 31 |
RAIN : |
7 |
5 |
10 |
14 |
16 |
15 |
14 |
13 |
12 |
18 | 12 | 9 | 146 |
DRIZZLE : | 2 | 1 | 3 | 2 | 2 | 1 | 0 | 0 | 2 | 3 | 3 | 4 | 23 |
HAIL : | - | - | - | 0 | 0 | 0 | 0 | 0 | - | 0 | - | - | 1 |
FREEZING RAIN : | 1 | 1 | 1 | 0 | - | - | - | - | - | - | 0 | 1 | 4 |
FREEZING DRIZZLE : | 1 | 1 | 0 | - | - | - | - | - | - | - | 0 | 1 | 3 |
ICE PELLETS : | 1 | 1 | 1 | 1 | 0 | - | - | - | - | 0 | 0 | 1 | 7 |
SNOW : | 21 | 17 | 11 | 5 | 0 | - | - | - | - | 1 | 7 | 16 | 78 |
SNOW PELLETS : | 0 | 1 | 0 | 0 | 0 | - | - | - | - | 0 | 1 | 0 | 3 |
SNOW GRAINS : | 1 | 0 | 0 | - | - | - | - | - | - | 0 | 0 | 1 | 2 |
FOG OR FREEZING FOG : | 2 | 2 | 4 | 4 | 4 | 2 | 1 | 1 | 1 | 3 | 3 | 3 | 29 |
BLOWING SNOW : | 1 | 1 | 0 | 0 | - | - | - | - | - | - | 0 | 0 | 3 |
HAZE : | 0 | 1 | 2 | 1 | 4 | 3 | 5 | 4 | 3 | 0 | 1 | 2 | 26 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
SOLAR RADIATION (w/m2) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
AVERAGE MONTHLY HIGH : | 675 | 860 | 1022 | 1209 | 1192 | 1245 | 1193 | 1119 | 1030 | 896 | 687 | 531 | 1271 |
AVERAGE DAILY MAXIMUM : |
359 |
521 |
675 |
844 |
909 |
994 |
956 |
924 | 761 |
576 | 417 | 284 | 685 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
SUNSHINE (h) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
BRIGHT SUNSHINE : | 72 | 119 | 182 | 205 | 255 | 256 | 246 | 219 | 180 | 129 | 81 | 48 | 1992 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
DARK SKY (m/a"2) : | Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
YEAR |
AVERAGE MONTHLY DARKEST : | 20.24 | 20.06 | 20.27 | 20.25 | 20.27 | 20.32 | 20.31 | 20.43 | 20.44 | 20.48 | 20.32 | 20.23 | 20.61 |
AVERAGE NIGHTLY DARKEST : |
19.17 |
19.12 |
19.44 |
19.58 |
19.71 |
19.82 |
19.92 |
19.98 | 19.90 |
19.75 | 19.55 | 19.11 | 19.59 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | YEAR |
Temperature (°C) | Record High |
Location |
Date |
Year | Record Low |
Location |
Date |
Year |
January : | 22.2 |
Niagara Falls |
26th |
1950 | -32.8 |
Welland |
25th |
1884 |
February : | 20.5 | Welland |
26th | 2000 | -31.1 *-36.7 |
Welland Caledonia |
9th 9th |
1934 1934 |
March : | 27.0 | Fort Erie Welland Vineland Vineland - Rittenhouse |
21st 31st 31st 30th | 2012 1998 1998 1998 | -27.8 |
Welland |
4th |
1873 |
April : | 33.0 | Niagara Falls |
28th | 1990 | -18.3 |
Welland |
1st |
1923 |
May : | 37.2 | Grimsby - Rock Chapel |
31st | 1919 | -6.1 *-6.7 |
Welland Port Dover |
6th 22nd |
1932 1935 |
June : | 37.0 | Power Glen |
8th | 1984 | 0.0 *-1.7 |
St Catharines - CDA Port Dover |
8th 9th |
1949 1931 |
July : | 41.1 | Grimsby - Rock Chapel |
9th | 1936 | 3.9 3.9 *3.3 *3.3 |
Niagara Falls - Hydro Welland Port Dover Caledonia |
11th 11th 12th 11th |
1945 1945 1898 1945 |
August : | 40.6 | Grimsby - Rock Chapel |
25th | 1948 | 0.5 *-0.6 |
Welland Canborough |
29th 30th |
1982 1965 |
September : | 38.3 | Grimsby - Rock Chapel |
3rd | 1953 | -2.2 *-3.9 | Welland Hagersville |
10th 23rd | 1883 1974 |
October : | 32.8 | Niagara Falls |
5th | 1951 | -9.4 -9.4 | Smithville Grimsby - Rock Chapel |
29th 29th | 1965 1965 |
November : | 27.2 | St Catharines - CDA Vineland Station |
3rd 3rd | 1961 1961 | -20.0 | Welland |
26th | 1880 |
December : | 22.0 *22.5 | Port Dalhousie Hamilton - Lab |
3rd 3rd | 1982 1982 | -27.8 *-29.4 *-29.4 | Welland Caledonia Port Dover |
27th 20th 26th | 1925 1942 1914 |
YEAR : | 41.1 | GRIMSBY - Rock Chapel | 7/9 | 1936 | -32.8 *-36.7 | WELLAND CALEDONIA |
1/25 2/9 | 1884 1934 |
Record High |
Location |
Date |
Year | Record Low |
Location |
Date |
Year |
Precipitation | Record Rain in 1 Day (mm) |
Location |
Date |
Year | Record Snow in 1 Day (cm) |
Location |
Date |
Year |
January : | 52.8 *81.3 |
Welland Port Dover |
7th 21st | 1998 1959 |
78.7 |
Welland |
22nd |
1902 |
February : | 82.8 | Niagara Falls |
16th | 1954 | 61.0 |
Welland |
12th |
1894 |
March : | 51.6 | Grimsby Rock Chapel |
1st | 1972 | 81.3 |
Welland |
1st |
1900 |
April : | 51.1 *88.4 | Niagara Falls Port Dover |
29th 26th | 1921 1937 | 43.2 |
Welland |
11th |
1894 |
May : | 68.6 | Grimsby Rock Chapel |
25th | 1953 | 14.8 |
Fort Erie |
7th |
1989 |
June : | 108.7 | Port Colborne |
25th | 1968 | 0 |
- |
- |
- |
July : | 141.0 | Welland |
3rd | 1892 | 0 |
- |
- |
- |
August : | 107.7 *115.6 | Grimsby Hamilton PH |
28th 8th | 1950 1981 | 0 |
- |
- |
- |
September : | 118.4 | Welland |
30th | 1959 | TR (ice pellets) | Ridgeville |
23rd | 1989 |
October : | 122.7 | Grimsby |
15th | 1954 | 20.3 *24.6 | Welland Hamilton PH |
31st 25th | 1873 1962 |
November : | 78.2 *86.4 | Port Colborne Port Dover |
4th 7th | 1985 1951 | 58.4 | Fort Erie |
14th | 1974 |
December : | 71.9 | Niagara Falls |
29th | 1954 | 66.0 | Vineland Station |
11th | 1944 |
YEAR : | 141.0 | WELLAND |
7/3 | 1892 | 81.3 | WELLAND |
3/1 | 1900 |
Record Rain in 1 Day |
Location |
Date |
Year | Record Snow in 1 Day |
Location |
Date |
Year |
Precipitation | Record Snow Depth (cm) |
Location |
Date |
Year | ||||
January : | 70 |
Thorold |
15th | 1999 |
||||
February : | 62 *64 | Ridgeville Hamilton A |
29th 7th | 1984 1978 | ||||
March : | 61 | Balls Falls |
1st | 1984 | ||||
April : | 30 | Niagara Falls |
1st | 1987 | ||||
May : | 9 | Niagara Falls |
7th | 1989 | ||||
June : | 0 | - |
- | - | ||||
July : | 0 | - |
- | - | ||||
August : | 0 | - |
- | - | ||||
September : | 0 | - |
- | - | ||||
October : | TR *2 | - Hamilton A |
- 21st | - 1989 | ||||
November : | 44 | Fort Erie |
22nd | 2000 | ||||
December : | 82 | Fort Erie |
28th | 2001 | ||||
YEAR : | 82 | FORT ERIE | 12/28 | 2001 | ||||
Record Snow Depth |
Location |
Date |
Year |
Wind | Record Sustained |
Dir |
Location |
Date |
Year |
Record Gust |
Dir |
Location |
Date |
Year |
||
January : | 48 *48 |
89 89 |
SW SW |
Niagara District A Hamilton A |
- - |
- - |
74 |
137 |
S |
Niagara District A |
26th | 1978 |
February : | 50 |
93 |
NW | Grass Island | - |
- |
59 *66 |
109 122 |
230 SW |
Port Colborne LS Hamilton A |
4th 27th |
2003 1997 |
March : | 56 | 104 |
230 |
Port Colborne LS |
9th |
2002 |
73 |
135 |
230 |
Port Colborne LS |
9th |
2002 |
April : | 50 |
93 |
SW |
Port Colborne LS | - |
- |
74 |
137 |
SW |
Niagara District A |
3rd |
1982 |
May : | 40 |
74 |
SW |
Port Colborne LS | - |
- |
52 *57 |
96 105 |
SW SW |
Niagara District A Hamilton A |
10th 16th |
1990 1973 |
June : | 35 *37 |
65 69 |
SW SW |
Niagara District A Hamilton A |
- - |
- - |
62 |
115 |
SW |
Niagara District A |
12th |
1978 |
July : | 34 |
63 |
SW |
Niagara District A | - |
- |
58 |
107 |
S |
Niagara District A |
5th |
1991 |
August : | 37 |
69 |
SW |
Port Colborne LS | - |
- |
55 |
102 |
W |
Niagara District A |
1st |
1995 |
September : | 42 |
77 |
SW |
Port Colborne LS |
- - |
- - |
72 |
133 |
W |
Niagara District A |
2nd |
1980 |
October : | 49 | 91 |
230 |
Port Colborne LS | 25th |
2001 |
67 |
124 |
230 |
Port Colborne LS |
25th |
2001 |
November : | 54 |
100 |
250 |
Port Colborne LS |
13th |
2003 |
67 | 124 |
250 |
Port Colborne LS |
13th |
2003 |
December : | 56 |
104 |
230 |
Port Colborne LS | 12th |
2000 |
69 | 128 |
230 |
Port Colborne LS |
12th |
2000 |
YEAR : | 56 |
104 |
230 |
PORT COLBORNE LS |
3/9 |
2002 + |
74 |
137 |
SW |
NIAGARA DISTRICT A |
4/3 |
1982+ |
Record Sustained |
Dir |
Location |
Date |
Year |
Record Gust (kt - km/h) |
Dir |
Location |
Date |
Year |