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Monthly Weather Events - Oak Park

Weather events for Oak_Park up to 31-May-2018

Number of days with Rainfall > 10mm.

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018 3 0 1 1 0 n/a n/a n/a n/a
2017 1 1 2 0 3 2 2 1 3 1 1 3
2016 4 4 1 2 2 1 0 1 4 1 1 1
2015 2 0 1 0 3 1 3 3 1 1 4 11

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 6 1 0 0 0 n/a n/a n/a n/a
2017 0 2 0 0 0 0 0 0 0 2 0 1
2016 2 1 1 0 0 0 0 0 0 0 0 0
2015 4 3 3 0 0 0 0 0 0 0 4 4

Number of days with Minimum Temperature < 0 deg. C

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018 6 13 13 2 0 n/a n/a n/a n/a
2017 5 5 2 1 0 0 0 0 0 0 8 8
2016 6 8 6 3 0 0 0 0 0 0 11 7
2015 8 9 6 2 0 0 0 0 0 0 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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