88.5 86.1 87.3 C. L. Howell. Geo. G. Spohr........ A. H. Dennison...... 5 22 This gives as the percentage of correct predictions for the state: Temperature........... UNITED STATES SIGNAL SERVICE REPORTS, 1887. The author of this volume repeats his acknowledgments to the U. S. Signal Service Officer at Omaha, Serg't GEO. M. CHAPPEL, for copies of his monthly Meteorological Summary for the METEOROLOGICAL SUMMARY, JANUARY, 1887. year 1887. MEAN BAROм ETER 1 29.382-13.3 6 29.233-14.7 Precipitation in inches & 100ths SUMMARY. Mean barometer, 28.835. Highest barometer, 29.515, date, 2d. Lowest barometer, 28.170; date, 19th. Monthly range of barometer, 1.345. Mean temperature,11.8. Highest temperature, 51.1; date, 24th. Lowest temperature, -21.9; date, 2d and 6th. Monthly range of temperature, 73.0. Greatest daily range of temperature, 43.1; date, 29th. Least daily range of temperature, 9.2; date, 5th. Mean daily range of temperature, 24.3. 9 28.952 - 3.8 4.0 -14.0 0.02 11.0-11.0 0 MEAN TEMPERATURE FOR THIS MONTH IN ....11.9 0.5 1872. .......19.0 1878...............28 8 1884........... ........ 1873...............16.9 1879.. TOTAL PRECIPITATION (IN INCHES AND HUNDREDTHS) ..17.0 ...... .12.2 7.3 ..11.8 FEBRUARY. 1871 .30.3 1877. * 1872 10 28.706 7.7 43.8 4.0 0 SUMMARY. Mean barometer 28.967. Highest barometer, 29.618; date 4th. Lowest barometer, 27.852; date 17th. Monthly range of barometer, 1.766. Mean temperature, 18.2. Highest temperature, 59.0; date 28th. Lowest temperature, 15.5; date 4th. Monthly range of temperature, 74.5. Greatest daily range of temperature, 39.8; date 10th. Least daily range of temperature, 8.2; date 6th. Mean daily range of temperature, 20.7. MEAN TEMPERATURE FOR THIS MONTH IN 7.3 1883...............21.7 .27.5 1878. ...........36.7 1884...............19.4 0.32 11 29.224 0.9 11.0 7.8 0 12 29.297 13 28.865 9.0 20.0 4.5 29.0 40.0 14 28.812 30.5 15 28.973 0 14.3 0.01 39.0 22.0 0.04 19.9 31.1 8.9 1181 20 29.023 26.2 21 29.070 27.6 37.1 25.6 0.03 22 29.099 27.0 36.2 20.6 23 28.968 22.6 37.0 9.6 24 29.128 13.1 25 28.530 30.3 44.0 34.0 16.4 0 0.20 27.0 1.8 16.0 9.0 ..36.3 1888.. Mean daily dew point, 13.2. Mean daily relative humidity, 81.5. Prevailing direction of wind (7 A.M., 3 and 10 A.M.) north, Total movement of wind. 5424 miles. Highest velocity of wind, direction, and date, 36 miles, north-west, 18th. Total precipitation, 1.00 inches. Number of days on which .01 inch or more of precipitation fell, 10. TOTAL PRECIPITATION (IN INCHES AND HUNDREDTHS) FOR THIS MONTH IN ....1.76 1877.............0.44 1883. ..0.43 1878.. 26 28.954 NOTE: Bar. corrected for inst. error. and temperature. The dash (-) indicates precipitation inappreciable. ~~DATE. BAR OMETER 128.676 Maxi- Mini- inches mum mum & 100ths 69.1 36.3 .0.40 1882. ............0 60 1888. No. of clear days, 12. No. of fair days, 7. No of cloudy days, 9. Dates of frosts 9th, 15th, 16th, 19th, 20th, 28th. MARCH. SUMMARY. Mean barometer, 28.935. Highest barometer, 29.427; date, 4th. Lowest barometer, 28.482; date, 24th. Monthly range of barometer, 0.945. Mean temperature, 38.0. Highest temperature, 78.1; date, 11th. Lowest temperature, 10.2; date, 4th. Monthly range of temperature, 67.9. Greatest daily range of temperature, 33.1; date, 12th. Least daily range of temperature, 9.0; date, 29th. Mean daily range of temperature, 21.5. MEAN TEMPERATURE FOR THIS MONTH IN 9 28.970 44.5 61.8 30.3 16 28.934 41.8 51.2 33.3 17 28.993 35.6 47.0 28.9 18 28.931 36.0 46.6 25 4 Mean daily dew point, 28.3. Mean daily relative humidity, 69.8. Prevailing direction of wind (7 A.M., 3 and 10 P.M.), north. Total movement of wind. 5,533 miles. Highest velocity of wind, direction, and date, 40 miles, north-west, 12th. Total precipitation, 0.48 inches. Number of days on which 0.1 inch or more of precipitation fell, 5. TOTAL PRECIPITATION (IN INCHES AND HUNDREDTHS) FOR THIS MONTH IN 29 28.901 27.3 33.6 26 28.960 26.1 40.0 25.5 27 29.051 24.3 34.0 19.7 28 29.110 24.6 34.0 20.6 24.6 0.10 0.30 0.05 1880..............0.50 1886. .........1.31 .......0.12 1887. 1881 1882.. Number of clear days, 9. Number of cloudy days, 6. ..0.79 1888.. ........0.48 ...... Number of fair days, 16. Dates of frosts, 6th, 30th. APRIL. SUMMARY Mean barometer, 28.754. Highest barometer, 29.156; date, 4th. Lowest barometer, 28.294; date, 30th. Monthly range of barometer, 0.862. Mean temperature, Lowest 54.5. Highest temperature, 88.0; date, 30th.) temperature, 23.4; date 4th. Monthly range of temperature, 64.6. Greatest daily range of temperature, 37.3; date, 1st, 2d, and 8th. Least daily range of temperature, 7.4; date, 12th. Mean daily range of temperature, 22.8. MEAN TEMPERATURE FOR THIS MONTH IN ..53.7 1877.......... ..................... .50.1 1883. 1872............. ..48.4 1878. ............54.6 1884. 51.5 70.4 33.1 2 28.557 61.9 81.0 3 28.681 42.5 67.0 * 43.7 0 38.7 1871.. 10 28.752 68.5 80.4 11 28.762 69.2 77.1 1873. 12 28.861 63.0 69.6 1874.. 13 28.723 61.7 70.1 1875. 1876.... 0 22 28.478 39.3 54.0 34.2 0.23 23 28.852 36.2 45.8 30.4 ..........51.1 1882... 24 28.817 40.6 499 34.1 25 28.675 48.1 60.8 34.5 26 28.695 51.5 64.0 38.2 27 28.560 63.7 78.1 28 28.672 65.6 77.5 49.1 54.9 29 28.690 65.8 80.1 50.7 30 28.385 75.4 88.0 64.0 1871. .3.38 1877... ..6.24 1883.. .3.20 0 1876. NOTE: Bar. corrected for temp. and inst. error only. The dash (-) indicates precipitation inappreciable. ..2.65 1882. Number of clear days, 7. Number of cloudy days, 8. and 25th. ...4.31 1888. Number of fair days, 15. Dates of frost, 1st, 24th SUMMARY. Mean barometer, 28.935. Highest barometer, 29.427; Lowest barometer, 28.482; date, 24th. date, 4th. Monthly range of barometer, 0.945. Mean temperature, 38.0. Highest temperature, 78.1; date, 11th. Lowest temperature, 10.2; date, 4th. Monthly range of temperature, 67.9. Greatest daily range of temperature, 33.1; date, 12th. Least daily range of temperature, 9.0; date, 29th. Mean daily range of temperature, 21.5. MEAN TEMPERATURE FOR THIS MONTH IN 1871... ..........40.8 | 1877... 1874... .33.6 | 1883. .34.6 47.9 1884. 35.3 .38.1 1879.. ..41.0 1885.. .36.1 .35.9 1886. .......31.9 ..27.6 1887 ...38.0 |