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Monthly Weather Events - Valentia

Weather events for VALENTIA OBSERVATORY up to 30-Sep-2020

Number of days with Rainfall > 10mm.

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2020 4 9 3 3 1 4 9 6 2 n/a
2019 3 5 7 3 0 2 3 7 5 7 7 5
2018 8 3 3 7 4 1 1 3 3 2 10 11
2017 6 3 2 2 1 6 3 3 7 5 2 7

Number of days with a maximum 10-min. mean wind speed >= 15m/s

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2020 3 13 4 0 1 0 0 1 2 n/a
2019 0 2 7 3 0 0 0 0 0 0 4 7
2018 8 5 1 0 0 1 0 0 1 2 2 5
2017 0 2 4 0 0 0 0 0 2 2 1 6

Number of days with Minimum Temperature < 0 deg. C

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2020 0 0 0 0 0 0 0 0 0 n/a
2019 0 2 0 1 0 0 0 0 0 0 1 1
2018 2 3 8 0 0 0 0 0 0 0 0 0
2017 2 0 0 0 0 0 0 0 0 0 1 0

An objective and measurable approach was adopted in relation to what is considered to be a weather event which could trigger a delay event, i.e. the contractor gets additional time. A delay event is triggered when a weather event exceeds a defined threshold (90th percentile) value in any given month.

Weather events are:

  • Number of days per month with a rainfall amount > 10mm.
  • Number of days per month with a maximum 10-min. mean wind speed >=15m/s.
  • Number of days per month with a minimum temperature < 0 deg. C.

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