|
| Date mm-dd | Mean | Maximum | Max Year | Minimum | Min Year |
| 01-06 | 15000.00 | 15000.00 | 1966 | 15000.00 | 1966 |
| 01-07 | 25000.00 | 25000.00 | 1966 | 25000.00 | 1966 |
| 01-08 | 24000.00 | 24000.00 | 1966 | 24000.00 | 1966 |
| 01-09 | 20000.00 | 20000.00 | 1966 | 20000.00 | 1966 |
| 01-10 | 15000.00 | 15000.00 | 1966 | 15000.00 | 1966 |
| 01-11 | 14000.00 | 14000.00 | 1966 | 14000.00 | 1966 |
| 01-12 | 20000.00 | 20000.00 | 1966 | 20000.00 | 1966 |
| 01-13 | 32000.00 | 32000.00 | 1966 | 32000.00 | 1966 |
| 01-14 | 31000.00 | 31000.00 | 1966 | 31000.00 | 1966 |
| 01-15 | 25000.00 | 25000.00 | 1966 | 25000.00 | 1966 |
| 01-16 | 19000.00 | 19000.00 | 1966 | 19000.00 | 1966 |
| 01-17 | 13000.00 | 13000.00 | 1966 | 13000.00 | 1966 |
| 01-18 | 11000.00 | 11000.00 | 1966 | 11000.00 | 1966 |
| 03-09 | 14400.00 | 14400.00 | 1966 | 14400.00 | 1966 |
| 03-10 | 18000.00 | 18000.00 | 1966 | 18000.00 | 1966 |
| 03-11 | 14300.00 | 14300.00 | 1966 | 14300.00 | 1966 |
| 03-12 | 11600.00 | 11600.00 | 1966 | 11600.00 | 1966 |
| 03-13 | 12100.00 | 12100.00 | 1966 | 12100.00 | 1966 |
| 03-14 | 16300.00 | 16300.00 | 1966 | 16300.00 | 1966 |
| 03-15 | 18000.00 | 18000.00 | 1966 | 18000.00 | 1966 |
| 03-16 | 16900.00 | 16900.00 | 1966 | 16900.00 | 1966 |
| 03-17 | 13700.00 | 13700.00 | 1966 | 13700.00 | 1966 |
| 03-18 | 13300.00 | 13300.00 | 1966 | 13300.00 | 1966 |
| 03-19 | 12000.00 | 12000.00 | 1966 | 12000.00 | 1966 |
| 03-20 | 12400.00 | 12400.00 | 1966 | 12400.00 | 1966 |
| 03-21 | 10300.00 | 10300.00 | 1966 | 10300.00 | 1966 |
| 03-28 | 11200.00 | 11200.00 | 1966 | 11200.00 | 1966 |
| 03-29 | 12500.00 | 12500.00 | 1966 | 12500.00 | 1966 |
| 03-30 | 17900.00 | 17900.00 | 1966 | 17900.00 | 1966 |
| 03-31 | 26000.00 | 26000.00 | 1966 | 26000.00 | 1966 |
| 04-01 | 22000.00 | 22000.00 | 1966 | 22000.00 | 1966 |
| 04-02 | 21000.00 | 21000.00 | 1966 | 21000.00 | 1966 |
| 04-03 | 18000.00 | 18000.00 | 1966 | 18000.00 | 1966 |
| 04-04 | 15200.00 | 15200.00 | 1966 | 15200.00 | 1966 |
| 04-05 | 15600.00 | 15600.00 | 1966 | 15600.00 | 1966 |
| 04-06 | 16100.00 | 16100.00 | 1966 | 16100.00 | 1966 |
| 04-07 | 18000.00 | 18000.00 | 1966 | 18000.00 | 1966 |
| 04-08 | 19100.00 | 19100.00 | 1966 | 19100.00 | 1966 |
| 04-09 | 20000.00 | 20000.00 | 1966 | 20000.00 | 1966 |
| 04-10 | 21000.00 | 21000.00 | 1966 | 21000.00 | 1966 |
| 04-11 | 27000.00 | 27000.00 | 1966 | 27000.00 | 1966 |
| 04-12 | 27500.00 | 27500.00 | 1966 | 27500.00 | 1966 |
| 04-13 | 22000.00 | 22000.00 | 1966 | 22000.00 | 1966 |
| 04-14 | 16000.00 | 16000.00 | 1966 | 16000.00 | 1966 |
| 04-15 | 15300.00 | 15300.00 | 1966 | 15300.00 | 1966 |
| 04-16 | 15700.00 | 15700.00 | 1966 | 15700.00 | 1966 |
| 04-17 | 15700.00 | 15700.00 | 1966 | 15700.00 | 1966 |
| 04-18 | 14500.00 | 14500.00 | 1966 | 14500.00 | 1966 |
| 04-19 | 14000.00 | 14000.00 | 1966 | 14000.00 | 1966 |
| 04-20 | 12300.00 | 12300.00 | 1966 | 12300.00 | 1966 |
| 04-21 | 11900.00 | 11900.00 | 1966 | 11900.00 | 1966 |
| 04-25 | 11400.00 | 11400.00 | 1966 | 11400.00 | 1966 |
| 04-26 | 12500.00 | 12500.00 | 1966 | 12500.00 | 1966 |
| 04-27 | 11500.00 | 11500.00 | 1966 | 11500.00 | 1966 |
| 05-02 | 10500.00 | 10500.00 | 1966 | 10500.00 | 1966 |
| 05-03 | 13600.00 | 13600.00 | 1966 | 13600.00 | 1966 |
| 05-04 | 18900.00 | 18900.00 | 1966 | 18900.00 | 1966 |
| 05-05 | 22200.00 | 22200.00 | 1966 | 22200.00 | 1966 |
| 05-06 | 31400.00 | 31400.00 | 1966 | 31400.00 | 1966 |
| 05-07 | 35000.00 | 35000.00 | 1966 | 35000.00 | 1966 |
| 05-08 | 30000.00 | 30000.00 | 1966 | 30000.00 | 1966 |
| 05-09 | 26000.00 | 26000.00 | 1966 | 26000.00 | 1966 |
| 05-10 | 22000.00 | 22000.00 | 1966 | 22000.00 | 1966 |
| 05-11 | 18400.00 | 18400.00 | 1966 | 18400.00 | 1966 |
| 05-12 | 14900.00 | 14900.00 | 1966 | 14900.00 | 1966 |
| 05-13 | 14800.00 | 14800.00 | 1966 | 14800.00 | 1966 |
| 05-14 | 13400.00 | 13400.00 | 1966 | 13400.00 | 1966 |
| 05-15 | 11400.00 | 11400.00 | 1966 | 11400.00 | 1966 |
| 05-16 | 13100.00 | 13100.00 | 1966 | 13100.00 | 1966 |
| 05-17 | 13000.00 | 13000.00 | 1966 | 13000.00 | 1966 |
| 05-18 | 11200.00 | 11200.00 | 1966 | 11200.00 | 1966 |
| 05-19 | 11100.00 | 11100.00 | 1966 | 11100.00 | 1966 |
| 05-20 | 12500.00 | 12500.00 | 1966 | 12500.00 | 1966 |
| 05-21 | 14500.00 | 14500.00 | 1966 | 14500.00 | 1966 |
| 05-22 | 18200.00 | 18200.00 | 1966 | 18200.00 | 1966 |
| 05-23 | 15300.00 | 15300.00 | 1966 | 15300.00 | 1966 |
| 05-24 | 12900.00 | 12900.00 | 1966 | 12900.00 | 1966 |
| 05-25 | 13600.00 | 13600.00 | 1966 | 13600.00 | 1966 |
| 05-26 | 19500.00 | 19500.00 | 1966 | 19500.00 | 1966 |
| 05-27 | 20400.00 | 20400.00 | 1966 | 20400.00 | 1966 |
| 05-28 | 15700.00 | 15700.00 | 1966 | 15700.00 | 1966 |
| 05-29 | 14200.00 | 14200.00 | 1966 | 14200.00 | 1966 |
| 05-30 | 14100.00 | 14100.00 | 1966 | 14100.00 | 1966 |
| 05-31 | 13000.00 | 13000.00 | 1966 | 13000.00 | 1966 |
| 06-01 | 12000.00 | 12000.00 | 1966 | 12000.00 | 1966 |
| 06-02 | 11600.00 | 11600.00 | 1966 | 11600.00 | 1966 |
| 06-03 | 11600.00 | 11600.00 | 1966 | 11600.00 | 1966 |
| 06-04 | 11100.00 | 11100.00 | 1966 | 11100.00 | 1966 |
| 06-05 | 10600.00 | 10600.00 | 1966 | 10600.00 | 1966 |
| 06-06 | 11700.00 | 11700.00 | 1966 | 11700.00 | 1966 |
| 06-07 | 15800.00 | 15800.00 | 1966 | 15800.00 | 1966 |
| 06-08 | 18400.00 | 18400.00 | 1966 | 18400.00 | 1966 |
| 06-09 | 17400.00 | 17400.00 | 1966 | 17400.00 | 1966 |
| 06-10 | 16500.00 | 16500.00 | 1966 | 16500.00 | 1966 |
| 06-11 | 19600.00 | 19600.00 | 1966 | 19600.00 | 1966 |
| 06-12 | 21900.00 | 21900.00 | 1966 | 21900.00 | 1966 |
| 06-13 | 18300.00 | 18300.00 | 1966 | 18300.00 | 1966 |
| 06-14 | 18000.00 | 18000.00 | 1966 | 18000.00 | 1966 |
| 06-15 | 17700.00 | 17700.00 | 1966 | 17700.00 | 1966 |
| 06-16 | 19800.00 | 19800.00 | 1966 | 19800.00 | 1966 |
| 06-17 | 20400.00 | 20400.00 | 1966 | 20400.00 | 1966 |
| 06-18 | 17400.00 | 17400.00 | 1966 | 17400.00 | 1966 |
| 06-19 | 15700.00 | 15700.00 | 1966 | 15700.00 | 1966 |
| 06-20 | 15300.00 | 15300.00 | 1966 | 15300.00 | 1966 |
| 06-21 | 13000.00 | 13000.00 | 1966 | 13000.00 | 1966 |
| 06-22 | 11100.00 | 11100.00 | 1966 | 11100.00 | 1966 |
| 06-23 | 10900.00 | 10900.00 | 1966 | 10900.00 | 1966 |
| 06-27 | 10400.00 | 10400.00 | 1966 | 10400.00 | 1966 |
| 06-28 | 16300.00 | 16300.00 | 1966 | 16300.00 | 1966 |
| 06-29 | 15600.00 | 15600.00 | 1966 | 15600.00 | 1966 |
| 06-30 | 12300.00 | 12300.00 | 1966 | 12300.00 | 1966 |
| 07-01 | 11800.00 | 11800.00 | 1966 | 11800.00 | 1966 |
| 07-02 | 12300.00 | 12300.00 | 1966 | 12300.00 | 1966 |
| 07-03 | 14100.00 | 14100.00 | 1966 | 14100.00 | 1966 |
| 07-04 | 19100.00 | 19100.00 | 1966 | 19100.00 | 1966 |
| 07-05 | 16700.00 | 16700.00 | 1966 | 16700.00 | 1966 |
| 07-06 | 14500.00 | 14500.00 | 1966 | 14500.00 | 1966 |
| 07-07 | 13200.00 | 13200.00 | 1966 | 13200.00 | 1966 |
| 07-08 | 12600.00 | 12600.00 | 1966 | 12600.00 | 1966 |
| 07-09 | 12600.00 | 12600.00 | 1966 | 12600.00 | 1966 |
| 07-10 | 12000.00 | 12000.00 | 1966 | 12000.00 | 1966 |
| 07-11 | 12400.00 | 12400.00 | 1966 | 12400.00 | 1966 |
| 07-12 | 10800.00 | 10800.00 | 1966 | 10800.00 | 1966 |
| 07-14 | 11300.00 | 11300.00 | 1966 | 11300.00 | 1966 |
| 07-15 | 11300.00 | 11300.00 | 1966 | 11300.00 | 1966 |
| 07-16 | 10500.00 | 10500.00 | 1966 | 10500.00 | 1966 |
| 07-17 | 10900.00 | 10900.00 | 1966 | 10900.00 | 1966 |
| 07-18 | 10900.00 | 10900.00 | 1966 | 10900.00 | 1966 |
| 10-07 | 12400.00 | 12400.00 | 1966 | 12400.00 | 1966 |
| 10-16 | 10200.00 | 10200.00 | 1966 | 10200.00 | 1966 |
| 10-19 | 12700.00 | 12700.00 | 1966 | 12700.00 | 1966 |
| 10-20 | 11400.00 | 11400.00 | 1966 | 11400.00 | 1966 |
| 11-04 | 16900.00 | 16900.00 | 1966 | 16900.00 | 1966 |
| 11-05 | 22700.00 | 22700.00 | 1966 | 22700.00 | 1966 |
| 11-06 | 17100.00 | 17100.00 | 1966 | 17100.00 | 1966 |
| 11-07 | 12500.00 | 12500.00 | 1966 | 12500.00 | 1966 |
| 11-08 | 10500.00 | 10500.00 | 1966 | 10500.00 | 1966 |
| 11-16 | 13600.00 | 13600.00 | 1966 | 13600.00 | 1966 |
| 11-19 | 10000.00 | 10000.00 | 1966 | 10000.00 | 1966 |
| 11-20 | 13200.00 | 13200.00 | 1966 | 13200.00 | 1966 |
| 11-21 | 15600.00 | 15600.00 | 1966 | 15600.00 | 1966 |
| 11-22 | 21100.00 | 21100.00 | 1966 | 21100.00 | 1966 |
| 11-23 | 18400.00 | 18400.00 | 1966 | 18400.00 | 1966 |
| 11-24 | 14100.00 | 14100.00 | 1966 | 14100.00 | 1966 |
| 11-25 | 11200.00 | 11200.00 | 1966 | 11200.00 | 1966 |
| 12-02 | 14000.00 | 14000.00 | 1966 | 14000.00 | 1966 |
| 12-03 | 14200.00 | 14200.00 | 1966 | 14200.00 | 1966 |
| 12-04 | 22100.00 | 22100.00 | 1966 | 22100.00 | 1966 |
| 12-05 | 21100.00 | 21100.00 | 1966 | 21100.00 | 1966 |
| 12-06 | 16400.00 | 16400.00 | 1966 | 16400.00 | 1966 |
| 12-07 | 19000.00 | 19000.00 | 1966 | 19000.00 | 1966 |
| 12-08 | 20900.00 | 20900.00 | 1966 | 20900.00 | 1966 |
| 12-09 | 16900.00 | 16900.00 | 1966 | 16900.00 | 1966 |
| 12-10 | 13700.00 | 13700.00 | 1966 | 13700.00 | 1966 |
| 12-11 | 12900.00 | 12900.00 | 1966 | 12900.00 | 1966 |
| 12-12 | 11100.00 | 11100.00 | 1966 | 11100.00 | 1966 |