WEATHER ALMANACS. 167 



In January, 1795, there occurred a frost which, for rigor and continuance, 

 exceeded the present. The mean temperature during that month was about 2G 

 degrees, and on the 25th of the month the thermometer stood at 7 degrees 

 being 25 degrees below the freezing point. The mean temperature during the 

 frost was about the same as during the present, but the extreme temperature 

 was four degrees lower. Since 1795 till the present time a period of forty- 

 two years there has been no cold of intensity and duration equal to the pres- 

 ent. 



Since the preceding observations were sent to press, we have received a 

 journal of the state of the weather during the last month in Paris, the particu- 

 lars of which may not be uninteresting to compare with the corresponding phe- 

 nomena in London. As in London, the first days of the month were mild and 

 fair, the thermometer ranging from the first to the sixth between 33^ degrees 

 and 29 degrees. On the seventh, as in London, the frost commenced, and the 

 thermometer gradually fell until the fourteenth, on which day the maximum 

 temperature was 13 degrees, and the minimum 4 degrees. 



The thermometer rose on the fifteenth, but afterward gradually fell until the 

 twentieth, when it attained the lowest temperature of the month. On that day 

 the highest temperature was 21 degrees below the freezing point, and the low- 

 est was 34 degrees below it. 



The mean maximum temperature from the first to the tenth was 33^ degrees, 

 and the mean minimum was 27 degrees. 



The mean maximum temperature from the eleventh to the twentieth was 19 

 degrees, and the mean minimum temperature was 8 degrees. 



The mean maximum temperature from the twenty-first to the thirty-first was 

 35 degrees, and the mean minimum temperature was 21 degrees. 



The mean maximum temperature throughout the month was 35 degrees, and 

 the mean minimum temperature was 18 degrees. 



The absolute mean temperature of the month was a little under 24 degrees. 



The fourth and fifth of the month were attended with a thick fog, followed 

 by a clouded sky on the sixth and seventh. Between the seventh and twelfth 

 there occurred a fall of snow, followed by almost continuous fair weather 

 till the twenty-fifth. The last six days of the month were cloudy. 



From a comparison of these particulars with those of the weather in London, 



it will be perceived that the day of the greatest cold was the twentieth in both 



places, but that the minimum temperature was much lower in Paris. In London 



the thermometer fell on the twentieth 20 degrees below the freezing point, but 



| in Paris it fell on the same day 34 degrees below it. In London, the highest 



< temperature on the twentieth was 1 1 degrees below the freezing point ; in Paris 



the highest temperature on the same day was 31 degrees below it. In London 



( the mean temperature of the month was 1 degree above the freezing point ; in 



^ Paris it was 8 degrees below it. 



It will be perceived that the severity of cold in Paris was in every point of 

 view greater than that in London. 



It is remarkable, also, that the frost not only commenced on the same day in 

 Paris as in London, but the cold varied in very nearly the same manner, though 

 in different degrees. The increase of temperature perceptible in London on 

 the sixteenth, commenced in Paris on the fifteenth, and was of the same dura- 

 tion. On the twenty-second and twenty-third in London, the thermometer 

 ) rose to above 40 degrees ; and on the same day in Paris it likewise rose to 

 j above 40 degrees. This increase of temperature was in like manner followed 

 ; by a return of frost, which continued till the twenty-ninth, when the thermom- 

 eter rose to 44 degrees in both places. 



