Aviosuperficie AS77

IT-0302 · Friuli Venezia Giulia, Italy

Statistics Aviosuperficie AS77 2019-2022

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

Calculated from historical METAR data of Rivolto Air Base (LIPI) between 2019 and 2022.

VFR conditions (%)

Month Average 2022 2021 2020 2019
January 81.6 80 95 87 84
February 72.7 80 72 59 79
March 87.1 93 93 94 86
April 88.6 90 89 98 79
May 92.2 97 88 89 85
June 96.0 99 100 86 98
July 99.4 100 99 100 100
August 99.1 100 100 98 98
September 95.5 95 99 93 96
October 85.5 91 90 74 82
November 81.5 87 80 85 64
December 77.0 77 83 67 72
Average 88.5 92.4 90.4 86.5 86.2

40th best VFR conditions of Italy

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:
  • Visibility: 8 km 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 89.3 84 99 93 94
February 79.2 85 86 67 81
March 94.1 99 99 94 92
April 95.9 99 93 100 89
May 97.3 98 96 99 94
June 99.2 100 100 98 100
July 99.8 100 100 100 100
August 99.9 100 100 100 100
September 98.5 99 100 97 100
October 91.9 99 94 87 87
November 89.2 90 89 86 81
December 88.3 90 93 79 87
Average 93.9 96.3 95.4 92.4 92.5

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:
  • Visibility: 5 km 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 7.8 8 6 10 8
February 10.2 11 10 11 12
March 14.1 16 14 13 14
April 17.4 16 16 19 17
May 21.7 24 19 22 18
June 27.4 29 28 24 30
July 29.7 32 29 29 30
August 29.6 30 28 29 30
September 24.2 23 26 25 25
October 19.2 22 18 17 19
November 13.7 14 13 15 14
December 8.4 8 9 9 10
Average 18.8 19.9 17.7 18.4 18.9

72nd highest temperature of Italy

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 -1.0 -2 -2 0 -1
February 1.7 0 3 3 1
March 3.0 1 2 4 3
April 8.0 6 7 7 9
May 12.7 13 11 12 11
June 17.7 18 19 16 19
July 19.3 20 21 18 19
August 19.3 19 19 19 21
September 14.6 13 16 16 15
October 10.0 11 8 9 12
November 6.2 6 6 5 9
December 1.4 2 0 3 3
Average 9.6 9.2 8.9 9.1 10.2

14th lowest temperature of Italy

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month Average 2022 2021 2020 2019
January 4.0 2 1 4 8
February 7.6 6 8 10 3
March 4.9 5 0 8 4
April 8.5 6 8 1 20
May 9.5 5 15 5 24
June 3.7 3 1 13 1
July 1.0 0 3 1 2
August 1.0 1 1 2 2
September 5.1 5 3 7 5
October 5.3 2 5 8 10
November 11.9 8 12 3 29
December 14.8 26 8 24 19
Average 6.4 4.5 5.5 7.0 10.4

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 2.0 4 5 3 0
February 2.5 5 4 5 0
March 3.5 5 4 7 0
April 4.7 5 5 7 0
May 3.2 6 5 6 0
June 2.7 5 4 5 0
July 3.1 5 5 4 0
August 3.1 5 5 5 0
September 3.8 5 5 5 5
October 3.0 3 5 4 5
November 3.4 4 6 4 5
December 3.3 5 4 5 4
Average 2.9 4.9 4.8 4.9 1.4

72nd highest wind speed of Italy

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 016° 357° 023° 000°
February 024° 030° 005° 000°
March 074° 053° 038° 000°
April 091° 065° 058° 000°
May 068° 080° 065° 000°
June 109° 107° 051° 000°
July 089° 088° 041° 000°
August 047° 039° 037° 000°
September 051° 067° 029° 049°
October 087° 037° 056° 032°
November 026° 038° 030° 013°
December 020° 006° 014° 001°

Prevailing wind direction

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

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