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Monthly Weather Events - Mace Head

Weather events for MACE HEAD up to 31-May-2020

Number of days with Rainfall > 10mm.

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2020 1 5 2 0 0 n/a n/a n/a n/a
2019 1 2 3 2 1 1 2 4 2 3 6 2
2018 3 1 0 2 2 0 1 3 4 0 6 5
2017 0 3 1 1 1 4 2 2 3 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 15 24 15 0 4 n/a n/a n/a n/a
2019 11 10 15 7 0 1 1 8 6 9 8 16
2018 19 12 3 6 3 2 1 5 8 8 10 13
2017 8 13 6 1 0 5 5 2 6 14 13 10

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 n/a n/a n/a n/a
2019 0 0 0 0 0 0 0 0 0 0 0 0
2018 2 2 7 0 0 0 0 0 0 0 0 0
2017 0 0 0 0 0 0 0 0 0 0 0 1

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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