LCruiser
Civil/Environmental
- Oct 16, 2005
- 564
We have a contractor who is claiming rain delays for about half of the last two years. Some months the rain was in fact above the second standard deviation in terms of monthly quantity averaged over the last 20 years. However, they are claiming rain for months just barely over the average as well, and about one month in six would be expected to be one standard deviation above normal. Is there a standard rainfall extreme that is considered an "Act of God"?