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Monthly Weather Events - Dunsany

Weather events for DUNSANY up to 30-Sep-2018

Number of days with Rainfall > 10mm.

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018 1 1 4 1 n/a n/a 2 1 1
2017 1 0 1 0 1 3 3 1 4 0 1 2
2016 3 2 1 2 3 2 0 2 1 1 2 2
2015 0 0 3 1 3 0 1 2 2 1 4 5

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
2018 3 0 1 0 0 1 0 0 1
2017 0 1 0 0 0 0 0 0 0 1 0 1
2016 1 1 1 0 0 0 0 0 0 0 0 0
2015 3 2 1 0 0 0 0 0 0 0 3 3

Number of days with Minimum Temperature < 0 deg. C

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018 5 14 12 4 n/a n/a 0 0 0
2017 8 6 1 1 0 0 0 0 0 0 8 12
2016 6 10 9 6 0 0 0 0 0 0 9 5
2015 11 12 9 5 0 0 0 0 0 3 2 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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