Massena International-Richards Field

KMSS · New York, United States

Climate Massena International-Richards Field 2020-2024

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

Calculated from historical METAR data of Massena International-Richards Field (KMSS) between 2020 and 2024.

VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 50.1 36 25 66 51 62
February 68.2 71 57 62 72 71
March 72.1 68 64 68 89 76
April 77.3 72 85 84 86 82
May 83.8 81 87 79 93 89
June 84.1 68 84 91 92
July 88.6 82 93 75 92
August 86.2 79 80 82 91
September 82.7 74 69 86 87
October 76.6 69 89 63 82
November 74.1 68 68 84 84
December 57.0 37 54 65 49
Average 76.1 67.3 67.8 76.1 79.6 82.5

VFR conditions during daylight period

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

Marginal VFR conditions (%)

Month Average 2024 2023 2022 2021 2020
January 74.6 68 50 80 87 85
February 79.9 86 71 74 80 81
March 84.0 82 80 77 97 90
April 89.5 86 94 92 94 92
May 94.4 94 97 90 98 95
June 94.0 82 94 96 98
July 95.5 91 95 95 96
August 94.5 92 91 91 97
September 92.1 86 83 95 94
October 90.8 89 96 83 91
November 89.0 85 85 94 93
December 77.5 59 73 86 91
Average 88.7 84.2 82.4 86.8 92.0 92.6

Marginal VFR conditions or better during daylight period

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

Maximum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January -3.4 -2 -1 -6 -3 -1
February -1.9 3 0 -1 -3 -1
March 4.1 7 3 5 7 6
April 12.1 13 14 12 14 10
May 19.6 21 20 22 20 18
June 24.3 24 23 26 26
July 27.3 27 26 24 30
August 25.8 24 26 27 25
September 21.9 23 20 21 20
October 15.5 16 16 16 14
November 6.5 6 9 7 10
December 0.7 3 1 2 1
Average 12.4 8.5 13.3 13.2 13.2 13.6

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January -12.9 -7 -7 -21 -10 -8
February -11.3 -7 -11 -15 -14 -11
March -6.9 -3 -4 -5 -6 -2
April 1.7 2 3 2 3 0
May 7.8 10 6 8 7 6
June 12.7 12 13 14 13
July 16.2 17 16 15 18
August 14.8 14 15 15 15
September 10.4 11 10 10 8
October 5.1 7 2 7 3
November -3.8 -2 0 -2 0
December -7.0 -3 -5 -6 -4
Average 2.3 -1.0 3.6 2.0 2.8 3.2

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 22.1 28 33 21 12 19
February 21.4 14 35 30 19 18
March 19.3 19 30 27 8 15
April 17.8 28 19 18 13 13
May 10.8 13 10 16 4 4
June 8.7 7 11 8 4
July 5.9 8 7 8 4
August 6.0 7 6 4 11
September 6.3 4 11 7 5
October 13.5 22 10 14 13
November 14.8 10 17 15 11
December 21.9 29 28 11 20
Average 13.8 20.3 16.8 15.6 9.5 10.0

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 2024 2023 2022 2021 2020
January 7.7 8 6 7 7 8
February 8.9 8 8 10 7 9
March 8.9 9 8 9 10 9
April 9.3 9 9 9 9 9
May 7.5 6 8 7 8 8
June 7.0 5 7 8 7
July 6.5 6 7 6 7
August 5.9 6 6 6 6
September 6.0 5 6 6 7
October 7.3 7 7 7 7
November 8.1 8 8 7 10
December 7.6 7 9 8 9
Average 7.6 7.8 6.8 7.6 7.2 7.8

Average wind speed

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

Prevailing wind direction

Month 2024 2023 2022 2021 2020
January 249° 324° 275° 280° 246°
February 249° 277° 263° 261° 249°
March 274° 301° 269° 255° 278°
April 020° 244° 291° 310° 278°
May 285° 277° 294° 259° 269°
June 018° 246° 228° 247°
July 233° 239° 276° 242°
August 247° 246° 236° 261°
September 257° 289° 248° 229°
October 233° 221° 033° 235°
November 245° 236° 245° 242°
December 346° 155° 256° 249°

Prevailing wind direction

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