Stouffville Airport

CA-0635 · Ontario, Canada

Statistics Stouffville Airport 2019-2022

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Oshawa Executive Airport (CYOO) between 2019 and 2022.

VFR conditions (%)

Month Average 2022 2021 2020 2019
January 63.0 64 65 59 64
February 72.0 72 75 70 69
March 76.0 67 87 65 87
April 78.6 80 76 86 73
May 84.5 85 93 89 72
June 88.1 85 89 97 92
July 90.0 88 82 96 93
August 91.6 91 91 91 93
September 86.3 76 89 83 93
October 80.3 89 70 86 78
November 74.8 71 78 85 68
December 66.0 60 69 61 73
Average 80.6 78.3 81.3 82.2 80.9

72nd best VFR conditions of Canada

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:
  • Visibility: 5 mi or more
  • Ceiling: 3,000 ft or more
Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month Average 2022 2021 2020 2019
January 87.4 90 91 84 90
February 86.2 88 91 84 83
March 89.8 78 97 88 96
April 92.2 93 89 96 93
May 93.8 94 97 95 90
June 94.4 90 93 100 96
July 95.8 92 94 99 97
August 97.8 99 97 98 95
September 95.6 92 96 97 98
October 94.3 95 93 98 94
November 91.5 87 92 94 95
December 85.1 79 85 88 87
Average 92.6 90.0 93.2 94.0 93.2

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:
  • Visibility: 3⅛ mi or more
  • Ceiling: 1,000 ft or more
Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month Average 2022 2021 2020 2019
January -2.9 -3 0 1 -3
February 0.3 0 -1 0 -1
March 4.7 5 8 6 3
April 10.6 11 12 10 10
May 18.3 20 19 17 16
June 23.8 23 25 25 23
July 26.6 26 25 29 28
August 25.8 26 27 26 25
September 21.7 22 22 21 21
October 14.8 15 17 13 15
November 7.0 9 8 10 4
December 1.6 2 4 2 2
Average 13.0 13.4 13.8 13.4 11.9

64th highest temperature of Canada

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month Average 2022 2021 2020 2019
January -9.2 -14 -6 -6 -11
February -8.4 -9 -9 -7 -9
March -4.1 -4 -3 -2 -6
April 1.7 2 3 1 2
May 8.0 10 7 7 7
June 13.1 11 15 14 13
July 16.3 15 16 19 17
August 16.3 17 18 16 15
September 12.2 12 12 11 12
October 6.3 4 10 5 6
November -1.2 0 -1 2 -3
December -5.3 -3 -2 -4 -6
Average 4.1 3.6 5.0 4.6 3.1

437th lowest temperature of Canada

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2022 2021 2020 2019
January 20.6 28 12 17 20
February 22.9 30 21 19 23
March 15.6 32 5 14 12
April 13.0 17 11 13 9
May 8.1 8 6 10 10
June 6.7 12 6 2 8
July 4.3 7 9 2 1
August 3.7 10 1 2 3
September 4.2 7 5 2 4
October 10.1 15 9 10 10
November 15.0 19 15 11 15
December 18.7 25 15 21 22
Average 10.8 16.6 8.9 9.4 10.3

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month Average 2022 2021 2020 2019
January 8.8 9 8 8 10
February 9.3 11 9 9 10
March 9.6 9 10 9 9
April 9.9 10 10 10 10
May 8.1 8 8 9 8
June 7.5 7 7 8 8
July 6.8 7 7 7 6
August 6.9 7 6 7 7
September 7.1 7 8 8 7
October 7.6 7 7 8 9
November 8.3 9 8 8 8
December 8.1 9 8 8 8
Average 8.1 8.2 7.9 8.2 8.1

64th highest wind speed of Canada

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month 2022 2021 2020 2019
January 296° 322° 285° 297°
February 276° 304° 278° 303°
March 275° 286° 162° 257°
April 261° 317° 292° 284°
May 127° 253° 309° 066°
June 264° 211° 225° 299°
July 226° 003° 231° 224°
August 231° 207° 218° 225°
September 001° 276° 227° 148°
October 191° 074° 257° 142°
November 259° 252° 242° 264°
December 283° 254° 289° 284°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

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