Meteorological Observations for February 1829. 319 



Summary of the Weather. 

 A clear skj', 2 ; fine, with various modifications of clouds, 6 ; an over- 

 cast sky without rain, 13; foggy, 1 ; rain, 6. — Total 28 days. 



Clouds, 



Cirrus. Cirrocumulus. Cirrostratus. Stratus. Cumulus. Cumulostr. Nimbus. 



7 3 26 I 4 11 17 



Scale of the prevailing Winds. 



N. N.E. E. S.E. S. S.W. W. N.W. Days. 

 4 3i 5 4 2 3| 2 4 28 



General Observations. — This month has been generally calm and cloudy, 

 with frequent light showers, yet mild for the season. Although it has rained 

 more or less on fourteen days, the amount that has fallen at the ground is 

 not an inch in depth. 



In consequence of the prevailing vapours and low haze, the amount of 

 evaporation is unprecedentedly low; indeed, it is remarkable that the sun 

 and moon have only appeared a few times during the last two months. The 

 first three days of the month the weather was fine, and the nights frosty, 

 since which the thermometer has only receded once to the freezing point, 

 and for several nights it has not gone lower than 46 degrees. 



The mean temperature of the external air this month, is 2\ degrees 

 higher than the mean of February for the last thirteen years ; yet from the 

 absence of the sun's rays the surface of the ground has received but little 

 heat, and the spring has therefore been retarded, — a circumstance very 

 generally fevourable to the blooming season. 



In the evening of the 27th, several strong flashes of lightning emanated 

 from the clouds to the southward, which appeared to have been effected 

 by two nearly opposite winds that had prevailed several hours. 



The atmospheric and meteoric phenomena that have come within our 

 observations this month, are one lunar halo in the evening of the 19th, 

 two meteors in the evening of the 27th, and two gales of wind, one from 

 the South, the other from the South-west. 



REMARKS. 



London.— Vch. 1—3. Clear and cold, with slight fog at night. 4. Rainy. 

 5. Cloudy. 6. Drizzly. 7. Cloudy. 8. Drizzly. 9. Cloudy. 10. Fine: 

 drizzly at night. 11, 12. Cloudy. 13. Drizzly in the morning: fine. 



14. Very fine. 15. Cloudy, with slight showers. 16, 17. Fine. 18. Clear 

 and cold. 19. Very fine. 5:0,21. Showery. 22. Cloudy, with slight showers. 

 23. Clear and cold. 24. Hazy. 25. Drizzly. 26. Rainy. 27. Drizzly. 

 28. Fine. 



Penzance.— Viih. \,2.¥a\v. 3. Fair : clear. 4. Fair. 5. Misty : fair. 

 0—11. Fair. 12. Misty : rain. 13. Fair. 14. Misty : rain. 15, 16. Fair. 

 1 7. Misty : fair. 1 8. Fair. 1 9. Fair : rain : fair. 20. Clear : rain. 21. Rain. 

 22. .Misty : clear. 23. Clear: cloudy. 24. Fair : showers. 25. Showers. 

 ■-!'). Rain : fair. 27. Fair: clear. 28. Fair. 



/Aw/on. — Feb. 1 — 3. Fine. 4. Cloudy: rain a.m. 5—10. Cloudy. 

 11. Cloudy: rain early a.m. 12. Cloudy: rain p.m. 13, H. Cloudy. 



15, 16. Fine. 17, 18. Cloudy. 19, 20. Fine. 21. Cloudy: rain a.m. and 

 P.M. 22— 25. Cloudy. 26. Cloudy: rain at night. 27. Rain. , 28. Fine. 



Meteor 0- 



