Daily Data Tables - Thunder / shorthand

Weather Variable:
◀ ▶ Year ◀ ▶
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 N N Y N N N N N N N N N
2 N N N N N N N N N N N N
3 N N N N N N N N N N N N
4 N N N N N N Light N N N N N
5 N N N N N N N N N N N N
6 N N N N Y N N N N N N N
7 N N N N N N N N N N N N
8 N N N N N N N N N N N N
9 N N N N N N N N N N N N
10 N N N N N N N N N N N N
11 N N N N N N N N N N N N
12 N N N N N N N N N N N N
13 Y N N N N N N N N N N N
14 N N N N N N N N N N N N
15 N N N N N N N N N N N N
16 N N N N N N Y N N N N N
17 N N N N N N N N N N N N
18 N N N N N N N N N N N N
19 N N N N N N N N N N N N
20 N N N N N N N N N N N N
21 N N N N N N N N N N N N
22 N N N N N N N N N N N N
23 N N N N N N N N N N N N
24 N N N N N N N N N N N N
25 N N N N N N N N N N N N
26 N N N N N N N Y N N N N
27 N N N N N N N N N N N N
28 N N N N N N N N N N N N
29 N   N N N N N N N N N N
30 N   N N N N N N N N N N
31 N   N   N   N N   N   N
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High Y N Y N Y N Light Y N N N N
Mean Y N Y N Y N Mod Y N N N N
Count 1 0 1 0 1 0 2 1 0 0 0 0
Cumul Y Y Light Light Mod Mod

Thunder in London, nw3, for every available day of 2015 along with monthly summary: lowest, highest, total, count (values > 0), and the cumulative value for the year to the month's end.