Rainfall Threshold Days Calculator
Enter your values below and press calculate.
Enter your values above to see the result.
Formula used
The calculator reads each daily value and counts values matching your selected threshold rule.
Example
For threshold 5mm, readings of 0, 3, 6 and 8 would count 2 days greater than 5mm.
Important note
This is a simple rainfall counter. Contractual weather assessments should use the contract wording, approved weather station, measurement period and agreed records.