Problem with Records to date for the Month and Warmest Day/Night

I’ve noticed my Monthly record for warmest and coldest day and night have gone astray … yesterday my Record warmest day and night plus the Record Coldest Day/Night had the same temps … I know this isn’t right so can anyone tell me how to rebuild my Current month records? I know how to re-create the all-time records, however this didn’t work for the current month?