<PAGE>

                                                                    Exhibit 13.1

     QUARTERLY FINANCIAL DATA (unaudited)

     Selected quarterly financial data for fiscal years 2000 and 1999 were as
     follows:

<TABLE>
<CAPTION>
$ in thousands,                           First                 Second                Third                 Fourth
except per share data                    Quarter               Quarter               Quarter               Quarter
<S>                                      <C>                   <C>                   <C>                   <C>
2000
Net sales                                $20,065               $19,551               $16,945               $18,237
Gross profit                               4,630                 4,345                 4,177                 3,931
Net earnings                                 904                   740                   879                 1,038
Net earnings per share
   Basic                                    0.37                  0.30                  0.36                  0.42
   Diluted                                  0.37                  0.30                  0.35                  0.42
Cash dividends per share                    0.06                  0.06                  0.07                  0.07

1999
Net sales                                $19,624               $19,253               $18,404               $20,197
Gross profit                               4,422                 4,024                 4,102                 5,148
Net earnings                                 766                   605                   635                 1,390
Net earnings per share
   Basic                                    0.32                  0.25                  0.26                  0.57
   Diluted                                  0.31                  0.25                  0.26                  0.56
Cash dividends per share                    0.05                  0.05                  0.06                  0.06
</TABLE>

     RANGE OF MARKET PRICES

     Kewaunee's common stock is traded in the NASDAQ/Over-the-Counter Market,
     under the symbol KEQU.  The following table sets forth the quarterly high
     and low prices reported on the NASDAQ National Market System.

<TABLE>
<CAPTION>
                                  First                 Second                Third                 Fourth
                                 Quarter               Quarter               Quarter               Quarter
<S>                              <C>                   <C>                   <C>                   <C>
2000
High                              11 1/2                11 3/4                11 7/8                13 3/4
Low                                9 3/8                 9 1/4                    10                    10
Close                             10 5/8                11 3/8                10 1/8               13 7/16

1999
High                              14 1/2                    13                13 1/4                11 1/8
Low                                9 3/4                 9 1/2                    10                     9
Close                            11 7/16                12 3/4                11 3/8                10 1/8
</TABLE>

page 22