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Notices:

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The Notice Inventory contains a record of all past and current Notices.

Canadian Climate Normals 1971-2000

The minimum number of years used to calculate these Normals is indicated by a code for each element. A "+" beside an extreme date indicates that this date is the first occurrence of the extreme value. Values and dates in bold indicate all-time extremes for the location.

NOTE!! Data used in the calculation of these Normals may be subject to further quality assurance checks. This may result in minor changes to some values presented here.

NIAGARA FALLS
ONTARIO
Latitude: 43°08'00.000" N Longitude: 79°05'00.000" W Elevation: 182.90 m
Climate ID: 6135638 WMO ID: TC ID:
Normals from to  
January-June January-December+Year July-December
Temperature:Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-4.5 -4.1 1 7.3 14 19.1 22.3 21.4 16.9 10.6 4.7 -1.4 8.9 C
Standard Deviation2.8 2.5 2.1 1.7 1.7 1.4 1.1 1.1 1 1.8 1.6 2.5 0.7 C
Daily Maximum (°C)-1 -0.5 5.1 12.2 19.3 24.2 27.2 26 21.3 14.7 8 1.9 13.2 C
Daily Minimum (°C)-7.9 -7.7 -3.2 2.4 8.6 13.9 17.2 16.7 12.5 6.4 1.3 -4.7 4.6 C
Extreme Maximum (°C)22.2 17.8 26.1 33 35 34.4 37 38.3 35.6 32.8 24.4 21.5    
Date (yyyy/dd)1950/26 1954/28 1945/26 1990/28 1978/30 1943/25 1988/07 1948/26 1953/03 1951/05 1956/01 1982/03  
Extreme Minimum (°C)-25 -25 -20 -13.5 -4.4 2.2 5.6 4 0 -6.7 -12.2 -24    
Date (yyyy/dd)1948/30 1943/15 1943/04 1979/08 1952/12 1972/11 1948/09 1982/29 1974/23 1965/29 1955/29 1980/25  
Precipitation:
Rainfall (mm)27.2 28.5 55.6 68.2 75.6 87.5 75.4 81.6 95.2 83.7 79.4 50.6 808.6 C
Snowfall (cm)42.4 38.9 20 7.3 0.9 0 0 0 0 0.6 11.6 40.1 161.6 C
Precipitation (mm)69.5 67.4 75.5 75.5 76.5 87.5 75.4 81.6 95.2 84.3 91 90.7 970.2 C
Extreme Daily Rainfall (mm)38.1 82.8 43.9 51.1 47.8 75.2 81 95.3 81.5 72.4 64.8 71.9    
Date (yyyy/dd)1915/31 1954/16 1945/31 1921/29 1976/06 1968/25 1942/17 1954/24 1959/30 1995/05 1985/04 1954/29  
Extreme Daily Snowfall (cm)38.1 45.7 39.1 22.1 13.6 0 0 0 0 10.8 36.8 27.4    
Date (yyyy/dd)1966/22 1940/19 1936/18 1942/10 1989/07 1903/01 1903/01 1903/01 1903/01 1993/31 1969/15 1948/31  
Extreme Daily Precipitation (mm)38.1 82.8 43.9 51.1 47.8 75.2 81 95.3 81.5 72.4 64.8 71.9    
Date (yyyy/dd)1915/31 1954/16 1945/31 1921/29 1976/06 1968/25 1942/17 1954/24 1959/30 1995/05 1985/04 1954/29  
Extreme Snow Depth (cm)21 45 47 30 9 0 0 0 0 0 18 37    
Date (yyyy/dd)1984/11 1984/29 1984/03 1987/01 1989/07 1981/01 1981/01 1981/01 1981/01 1981/19 1989/18 1989/30  
Days with Maximum Temperature:
<= 0 °C17.4 15.5 7 0.68 0 0 0 0 0 0 2 10.6 53.1 C
> 0 °C13.6 12.7 24 29.3 31 30 31 31 30 31 28 20.4 312.1 C
> 10 °C1.1 1.4 6.2 17.1 29.1 30 31 31 29.8 24.3 9.9 2.1 213.1 C
> 20 °C0 0 0.80 3.8 12.6 24.8 30.2 29.2 17.4 4.8 0.28 0.04 123.8 C
> 30 °C0 0 0 0.04 0.52 2.2 6.1 3.3 0.60 0 0 0 12.8 C
> 35 °C0 0 0 0 0 0 0.20 0 0 0 0 0 0.20 C
Days with Minimum Temperature:
> 0 °C2.3 2.7 7.7 20.3 30.6 30 31 31 30 28.5 16.9 5.5 236.4 C
<= 2 °C30.2 27.2 26.8 14.9 2 0 0 0 0.36 5.4 18.5 28.4 153.9 C
<= 0 °C28.7 25.5 23.3 9.7 0.44 0 0 0 0.04 2.5 13.1 25.5 128.9 C
< -2 °C24.8 22.2 17.2 4.2 0 0 0 0 0 0.72 6.6 19.4 95.1 C
< -10 °C10.8 10 3.2 0.12 0 0 0 0 0 0 0.12 5.5 29.9 C
< -20 °C0.72 0.24 0 0 0 0 0 0 0 0 0 0.12 1.1 C
< - 30 °C0 0 0 0 0 0 0 0 0 0 0 0 0 C
Days with Rainfall:
>= 0.2 mm5.9 5.2 9.9 12.8 13 12.2 10.9 11.1 12.3 13.6 12.8 8.8 128.6 C
>= 5 mm1.8 2 3.7 4.6 4.8 5.4 4.2 4.8 5.6 5.3 5.3 3.6 51.2 C
>= 10 mm0.72 0.88 1.7 2.3 2.6 3.2 2.5 3.1 3.1 3 2.6 1.6 27.3 C
>= 25 mm0.08 0.08 0.16 0.32 0.32 0.60 0.60 0.83 0.76 0.52 0.40 0.32 5 C
Days With Snowfall:
>= 0.2 cm13.9 12.2 6.9 2.6 0.08 0 0 0 0 0.16 4 11 50.9 C
>= 5 cm2.3 2.5 1.3 0.48 0.08 0 0 0 0 0.04 0.64 2.8 10.2 C
>= 10 cm0.84 0.68 0.28 0.08 0.04 0 0 0 0 0.04 0.36 0.92 3.2 C
>= 25 cm0.04 0.12 0 0 0 0 0 0 0 0 0 0 0.16 C
Days with Precipitation:
>= 0.2 mm18.2 15.7 14.7 14.6 13.1 12.2 10.9 11.1 12.3 13.6 15.5 17.5 169.6 C
>= 5 mm4.4 4.5 5.1 5.1 4.9 5.4 4.2 4.8 5.6 5.3 6 6.4 61.8 C
>= 10 mm1.7 1.8 2.3 2.5 2.6 3.2 2.5 3.1 3.1 3 3 2.8 31.5 C
>= 25 mm0.12 0.28 0.20 0.32 0.32 0.60 0.60 0.83 0.76 0.52 0.40 0.36 5.3 C
Wind:
Maximum Hourly Speed (km/h)0 0 0 0 0 0 0 42 3 0 0 0    
Date (yyyy/dd)              1978/16 1978/01        
Degree Days:
Above 24 °C0 0 0 0 0.4 3.8 16.4 10.3 2.3 0 0 0 33.2 C
Above 18 °C0 0 0 2.1 17.7 64.6 135 112 37.4 3.1 0 0 371.9 C
Above 15 °C0 0 0.6 7.4 45 131.9 225 198.4 84.2 13.2 0.9 0.1 706.7 C
Above 10 °C0.3 0.1 6.1 32.8 137 273 379.9 352.5 208.7 66.7 12.4 1.1 1470.5 C
Above 5 °C2.4 3.4 26.7 101.5 278 422.8 534.9 507.5 356.7 178.6 53.6 7.9 2473.8 C
Above 0 °C20.3 22.1 84.9 225.2 432.6 572.8 689.9 662.5 506.7 328.1 150.3 42.7 3738 C
Below 0 °C159.3 137.5 55 5.4 0 0 0 0 0 0.1 10 85.4 452.7 C
Below 5 °C296.4 259.9 151.8 31.8 0.4 0 0 0 0 5.6 63.2 205.6 1014.7 C
Below 10 °C449.4 397.8 286.2 113.1 14.4 0.2 0 0 2.1 48.7 172.1 353.8 1837.7 C
Below 15 °C604.1 538.9 435.7 237.6 77.4 9.1 0.1 0.9 27.5 150.2 310.5 507.9 2900 C
Below 18 °C697.1 623.7 528.1 322.4 143 31.8 3.1 7.6 70.7 233.1 399.7 600.8 3660.9 C


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Date Modified: 2013-02-04

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