This table lists the highest letter block series I've confirmed for each expiration month in each year since the graphic map base was introduced in 1976, thus providing a means of tracking the progression of each series over time.
Numbering for each month proceeded from xA-1001 to xZ-9999, then from xAA-101 to xZM-999 (using A through M only in the third position) and finally from xAN-101 to a theoretical high of xZZ-999 (although no month got this far, and some didn't even exceed xZM). Numbering restarted when the current license plate series was introduced for 1996 and proceeded in a similar fashion, although the entire series from A through Z began to be used in order regardless of position circa 2000.
A question mark indicates that a license plate from the indicated letter block has been confirmed with the indicated year sticker, but I do not know whether or not it is a natural validation. Some of the information for more recent expiration years has been sourced from the West Virginia Highs page on LicensePlates.cc.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 1G | 2B | 3F | 4K | 6P | 7G | 8N* | 9R* | OT* | NN* | DJ* | |
| 1978 | 4L | |||||||||||
| 1979 | 1H | 2N | 3M | 8V | 9S | NU | DK* | |||||
| 1980 | 3R | 4S | 6S | 8Z | NW | |||||||
| 1981 | 2R | 4U? | 7S? | 9W | NZ | DY | ||||||
| 1982 | 1AM | 3AB | 5BH | 7AK | 8BC | OBE | ||||||
| 1983 | 3BL? | 4DG | 5DE | 7CH? | ||||||||
| 1984 | 5FB | 9EB | OFA | DBE? | ||||||||
| 1985 | 1EJ | 3FH | 6GL | |||||||||
| 1986 | 1FH | 2EE? | 4JF | 5KA | 7JM | OKD | NKF? | |||||
| 1987 | 1HB | 3JD | 4MB? | 6LD? | 7LG | 9KC | OKF | DHK | ||||
| 1988 | 1HM | 2EH | 3KE? | 4NJ | 6MF? | 7NM | OMA | DJK | ||||
| 1989 | 1KA | 3LK | 5RD | 6SD | 9LE | |||||||
| 1990 | 2LA | 3PA | 4VE | 5SK | 6SL | 7VB | 8TG | 9SK | ||||
| 1991 | 3SD | 8VF | 6XA | 7WC | 8WH | 9VE | OVM | NSL | DMB | |||
| 1992 | 3TJ | 5VE | 6ZE | |||||||||
| 1993 | 1SB | 2MD? | 4AR | 5ZK | 6BW | 8ZK | 9YJ | NWC | DSM | |||
| 1994 | 1SE | 2WE | 3YB | 4BY | 5CN | 6CZ | 7DN | 8DP | OAY | |||
| 1995 | 1VC | 3AT | 4DP | 5ER | 6FY | 7EX | 8DZ | 9EZ | OBY | NCW | DXA | |
| 1996 | 1K | 2G | 3F | 4N | 5M | 6P | 7N | 8K | 9T | OJ | NN | DH |
| 1997 | 1L? | ON? | ||||||||||
| 1998 | 3R | 4U | 5R | 6U | 8U | 9U | NP? | DU | ||||
| 1999 | 1U | 3T | 4W | 5V | 6Y | 8X | 9X | OV | NV | DW | ||
| 2000 | 2U | 3W | 4Z | 5X | 7AG | 8Z | 9AM | OY | NX | DY | ||
| 2001 | 2W | 3Y | 4CN | 5BK | 6CL | 7DC | 8CH | 9CL | OAM | NAH | DBA | |
| 2002 | 1X | 2Y | 3CB | 4CM | 5DC | 6EY | 7DR | 8DD | 9EH | OCD | NBL | DBT |
| 2003 | 1Z | 2AD? | 3CY | 4EW | 5FF | 6FC? | 7FF | 8EH | 9FA | ODJ | NCP | DDD |
| 2004 | 1AJ | 2BL | 3ET | 4FJ | 5GA | 7GN | 8GH | 9GU | OER | NDX | DEM | |
| 2005 | 1CD | 2CR | 3FX | 4HB | 5HF | 6HS | 7HT | 8HN | 9HY | OFW | NEY | DFC |
| 2006 | 1DJ | 2DM | 3HD | 4JF | 5JN | 6KE | 7KB | 8JR | 9KD | OHB | NGP | DGL |
| 2007 | 1DS | 2EP | 3JG | 4KM | 5KU | 6LH | 7LF | 8KU | 9LN | OLM | NHU | DHM |
| 2008 | 1ET | 2FS | 3KL | 4LV | 5LY | 6MP | 7NP | 8MK | 9MY | OPV | NJW | DJL |
| 2009 | 1FR | 2HA | 3LS | 4NA | 5ND | 6NV | 7PP | 8NJ |