Table I.—Mean Temperature.
| °C | °F | ||||||
| 1898. | March | -9.1 |  | -9.1 | 15.6 | | 15.6 |
| April | -11.8 | 10.8 | |||||
| May | -6.5 | 20.3 | |||||
| June | 15.5 | | -16.8 | 4.1 | | 1.8 | |
| July | 23.5 | -10.3 | |||||
| August | -11.3 | 11.7 | |||||
| September | -18.5 | | -11.1 | -1.3 | | 12.0 | |
| October | -7.9 | 17.8 | |||||
| November | -6.9 | 19.6 | |||||
| December | -2.2 | | -1.5 | 28.0 | | 29.3 | |
| 1899. | January | -1.2 | 29.8 | ||||
| February | -1.0 | 30.2 | |||||
| Year | -9.6 | 14.7 | |||||
Table II.—Monthly Minima of Temperature.
| °C | °F | ||
| 1898. | February 23, at 10 p.m. | -7.6 | 18.3 |
| March 15, at 4 a.m. | -20.3 | -4.5 | |
| April 3, at 6 p.m. | -26.5 | -15.7 | |
| May 29, at 8 p.m. | -25.2 | -13.4 | |
| June 3, at 6 p.m. | -30.0 | -22.0 | |
| July 17, at 10 p.m. | -37.1 | -34.8 | |
| August 28, at 3 a.m. | -29.6 | -21.3 | |
| September 8, at 4 a.m. | -43.1 | -45.6 | |
| October 25, at 3 a.m. | -26.3 | -15.3 | |
| November 2, at 4 a.m. | -21.4 | -6.5 | |
| December 2, midnight | -14.5 | 5.9 | |
| 1899. | January 2, at 2 a.m. | -8.1 | 17.4 |
| February 11, at 2 a.m. | -9.6 | 14.7 | |
| March 4, midnight | -12.0 | 10.4 | |
Table III.—Monthly Means (Approximate) of Barometric Pressure.
| - | MM. | INCHES. | |
| 1898. | February[1] | 738.5 | 29.075 |
| March | 741.4 | 29.190 | |
| April | 735.6 | 28.961 | |
| May | 746.3 | 29.382 | |
| June | 749.5 | 29.508 | |
| July | 747.8 | 29.441 | |
| August | 747.2 | 29.418 | |
| September | 745.5 | 29.351 | |
| October | 744.7 | 29.319 | |
| November | 746.0 | 29.371 | |
| December | 748.2 | 29.457 | |
| 1899. | January | 747.3 | 29.422 |
| February | 736.5 | 28.997 | |
| Year | 744.7 | 29.319 | |
[1] Latter half of month only.
Table IV.—Minimum Pressures Observed.
| - | REDUCED TO FREEZING-POINT. | REDUCED TO FREEZING-POINT AND LAT. 45°. | |||
| MM. | INCHES. | MM. | INCHES. | ||
| 1898. | February 18, at 6 a.m. | 724.53 | 28.526 | 725.93 | 28.581 |
| March 22, at 4 a.m. | 719.96 | 28.345 | 721.48 | 28.405 | |
| April 20, at 3 a.m. | 714.66 | 28.136 | 716.15 | 28.195 | |
| May 10, at 11 p.m. | 730.26 | 28.751 | 731.78 | 28.811 | |
| June 21, at 1 a.m. | 733.58 | 28.881 | 735.11 | 28.941 | |
| July 31, at 2 a.m. | 731.77 | 28.811 | 733.28 | 28.870 | |
| August 12, at 4 a.m. | 715.81 | 28.182 | 717.31 | 28.241 | |
| September 22, at 6 a.m. | 719.29 | 28.319 | 720.77 | 28.377 | |
| October 23, at 4 a.m. | 722.06 | 28.428 | 723.53 | 28.486 | |
| November 19, at 3 p.m. | 731.33 | 28.793 | 732.82 | 28.852 | |
| December 22, at 10 p.m. | 735.52 | 28.958 | 737.01 | 29.016 | |
| 1899. | January 30, at 10 p.m. | 733.92 | 28.895 | 735.43 | 28.955 |
| February 17, at 11 p.m. | 718.59 | 28.292 | 720.08 | 28.350 | |
| March 2, at 3 a.m. | 710.26 | 27.963 | 711.74 | 28.022 | |
Absolute minimum, 711.74 mm. = 28.022 inches.