Probability of Wet Spell

States  Standard Week Table
Week No. Month Date Week No. Month Date
1 January 1-7  27 July 2-8
2   8-14  28   9-15
3   15-21  29   16-22
4   22-28  30   23-29
5   29-4  31   30-5
6 February 5-11  32 August 6-12
7   12-18  33   13-19
8   19-25  34   20-26
9   26-4*  35   27-2
10 March 5-11  36 September 3-9
11   12-18  37   10-16
12   19-25  38   17-23
13   26-1  39   24-30
14 April 2-8  40 October 1-7
15   9-15  41   8-14
16   16-22  42   15-21
17   23-29  43   22-28
18   30-6  44   29-4
19 May 7-13  45 November 5-11
20   14-20  46   12-18
21   21-27  47   19-25
22   28-3  48   26-2
23 June 4-10  49 December 3-9
24   11-17  50   10-16
25   18-24  51   17-23
26   25-1  52   24-31#

 * In the leap Year the week No. 9 will be 26 February to 4 March
# Last week will have 8 days 24-31 December