Canadian Climate Normals 1971-2000 Station Data

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.

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.

Metadata including Station Name, Province, Latitude, Longitude, Elevation, Climate ID, WMO ID, TC ID
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:
1971 to 2000 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Temperature:
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 LegendCC
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 LegendCC
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 LegendCC
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 LegendCC
Extreme Maximum (°C)22.2 17.8 26.1 33 35 34.4 37 38.3 35.6 32.8 24.4 21.5   Legend
Extreme Minimum (°C)-25 -25 -20 -13.5 -4.4 2.2 5.6 4 0 -6.7 -12.2 -24   Legend
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 LegendCC
Snowfall (cm)42.4 38.9 20 7.3 0.9 0 0 0 0 0.6 11.6 40.1 161.6 LegendCC
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 LegendCC
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   Legend
Extreme Daily Snowfall (cm)38.1 45.7 39.1 22.1 13.6 0 0 0 0 10.8 36.8 27.4   Legend
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   Legend
Extreme Snow Depth (cm)21 45 47 30 9 0 0 0 0 0 18 37   Legend
Days with Maximum Temperature:
<= 0 °C17.4 15.5 7 0.68 0 0 0 0 0 0 2 10.6 53.1 LegendCC
> 0 °C13.6 12.7 24 29.3 31 30 31 31 30 31 28 20.4 312.1 LegendCC
> 10 °C1.1 1.4 6.2 17.1 29.1 30 31 31 29.8 24.3 9.9 2.1 213.1 LegendCC
> 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 LegendCC
> 30 °C0 0 0 0.04 0.52 2.2 6.1 3.3 0.60 0 0 0 12.8 LegendCC
> 35 °C0 0 0 0 0 0 0.20 0 0 0 0 0 0.20 LegendCC
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 LegendCC
<= 2 °C30.2 27.2 26.8 14.9 2 0 0 0 0.36 5.4 18.5 28.4 153.9 LegendCC
<= 0 °C28.7 25.5 23.3 9.7 0.44 0 0 0 0.04 2.5 13.1 25.5 128.9 LegendCC
< -2 °C24.8 22.2 17.2 4.2 0 0 0 0 0 0.72 6.6 19.4 95.1 LegendCC
< -10 °C10.8 10 3.2 0.12 0 0 0 0 0 0 0.12 5.5 29.9 LegendCC
< -20 °C0.72 0.24 0 0 0 0 0 0 0 0 0 0.12 1.1 LegendCC
< - 30 °C0 0 0 0 0 0 0 0 0 0 0 0 0 LegendCC
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 LegendCC
>= 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 LegendCC
>= 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 LegendCC
>= 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 LegendCC
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 LegendCC
>= 5 cm2.3 2.5 1.3 0.48 0.08 0 0 0 0 0.04 0.64 2.8 10.2 LegendCC
>= 10 cm0.84 0.68 0.28 0.08 0.04 0 0 0 0 0.04 0.36 0.92 3.2 LegendCC
>= 25 cm0.04 0.12 0 0 0 0 0 0 0 0 0 0 0.16 LegendCC
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 LegendCC
>= 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 LegendCC
>= 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 LegendCC
>= 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 LegendCC
Wind:
Maximum Hourly Speed (km/h)0 0 0 0 0 0 0 42 3 0 0 0   Legend
Degree Days:
Above 24 °C0 0 0 0 0.4 3.8 16.4 10.3 2.3 0 0 0 33.2 LegendCC
Above 18 °C0 0 0 2.1 17.7 64.6 135 112 37.4 3.1 0 0 371.9 LegendCC
Above 15 °C0 0 0.6 7.4 45 131.9 225 198.4 84.2 13.2 0.9 0.1 706.7 LegendCC
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 LegendCC
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 LegendCC
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 LegendCC
Below 0 °C159.3 137.5 55 5.4 0 0 0 0 0 0.1 10 85.4 452.7 LegendCC
Below 5 °C296.4 259.9 151.8 31.8 0.4 0 0 0 0 5.6 63.2 205.6 1014.7 LegendCC
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 LegendCC
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 LegendCC
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 LegendCC
Legend
  • A = WMO "3 and 5 rule" (i.e. no more than 3 consecutive and no more than 5 total missing for either temperature or precipitation)
  • B = At least 25 years
  • C = At least 20 years
  • D = At least 15 years