274 
Meteorological Observations at Hudson, Ohio. 
During the summers of 1839, 1840, ’42 and ’43, that is four 
summers out of seven, the thermometer did not rise to 90°. 
entire range of the thermometer in seven years has been from 
—10-1° to 
93°, = 
103°1°. 
The 
The following table shows the maximum and minimum tem- 
perature of each month for the seven years. 
1838. 1839. 1840. 1841. 1842. 1843. 1844. Mean 7 years. 
Months.) yfax, [Min {Maze /Min.|Max.| Min, {Max.)Min.{Max.|Min. Max. Min. |Max. Min. |Max. Min. Dim 
ie} (o) fo} fe) fe} fo} fo} fo} fo) fo) fo} 
March,|76'1 | 5:8]70°3 |-4-4l74°8 |17°6 |78°0 | 5417-4 |17-5'50°6 | 1-1 [72-0 |14-0}71°3 | 8'1/63.2 
‘April, {83-5 [20-2]82-3 | 30-4}81-5 [25 2 ]75:0 |25-2183-6 |23-5179-6 |23-.0187-2 |30-0181-7 |25-4|56°3 
May, 95-4 |27-0185-1 |32-6 184-5 126-7176:8 |33-0'87-9 |35:8|g2-5 133-9183-7 13151522 
June, [87-8 [51-0181-4 |46-0]86-0 39:8 90-0 | 45-5]83-4 |35-3188-6 |32-4 184-6 |39-0186-0 |41-3/44-7 
Tuly, 192-0 [55-2882 |60-6186-7 [55:3 |93-0 |53-9187-7 |44-0192-4 |46-8]88°3 |47-3189-8 |51-9197-9 
‘Aug, 1908 |58-2187-1 |46-7/85-0 52-0 [90-5 |50-2184-6 |45-4186-4 153-0|83-9 |49-0186-9 |50-6/36-3 
Sept., [81-6 [36-3|77°1 |35°6]76-9 [33:6 |88°6 |38-6|86-0 [34-4187°8 [38:5 |82-5 |41-5]82-9 |36-9/46-0 
Oct.,” {74:5 |23-6|76-2 |28-6|73°3 [22-4 [73-4 |24-9]71-5 |30-7169-2 |25-0|70-0 |24-5]72-6 |25-7146-9 
Nov., (62:8| 8°7152:8 | 6-4167-5 |20-6 |75-0 |19-5|68-6 | 6-8157-1 |14-5166-5 |19-0'64-3 |13-6|50-7 
Dec., |46-6| 5-0148-0 |13-7}52-1| 9-3 [56-6 | 8°8|50-2 | 5-5153-7 |12-0[54-6 |15-0151-9 | 9-9/42-0 
Jan., (57-6 |-25[47°3 |-9-1]55-1 |-10-1158°8 | 7-0]62-2 | 5-5)52-7 | 3-0[55:5 |13. 0155-6 | 1-01546 
Feb. |62:1| 1-6(68°6 | 9°7150-2| 0-6 62-4! 8-6153-3 |-7-8195-7 | 3-0l65:7 | 6-0159-7 | 3:1156°6 
The following miscellaneous facts may interest some readers. 
Ground last white w 
Plum trees in blossom, 
Last flakes of snow, 
Last ice, 
Last frost, 
First frost, 
First severe frost, 
First flakes of snow, 
Ground first white w 
vith snow, 
1838. 
May 4. 
“9, 
ith snow, 
April 21. 
1839, 
April 22. 
March 17. 
" Frost every month in the year. 
| Frost is said to haye been seen on low grounds earlier than this. 
March 9. 
1840. 
April 1. 
18. |May 15. 
“ce 
1841. 1842. 
April 14.|Peb. 18. 
April 9. 
— 
Siler) 
“ee “ 
8. 
June 16. > 
24. Nov. 9. 
13. |June 10. 
ll. 
Oct. 5. 
1843, 1844. 
April 9.|March 22. 
May 8. |April 9. 
June 1.|March 30, 
ce 2.1\May 22. 
July 21.|June LL. 
Sept2s. Sept. 23. 
Oct. 8. 
“ 27. 
nape de 
ce 8. 
“14, 
Mean. 
March 27. 
April 25. 
May 3. 
oe ie 
June 26. 
Sept. 16. 
fs 24. 
Oct. 21. 
oa 
The following table exhibits all the cases in which the ther- 
mometer has been 25° above the dew point, all occurring at 3 
Ther. above hygrom. 
P.M. 
and the next subsequent rain. 
Date. 
1841, March 9, 
a3 Ge 18, 
6c cc . igs 
April = 22, 
ee Nay. ta, 
ety Aen SG, 
1842, March 16, 
73 14 1G 
¢ cc 29, 
April? "I, 
ce 
2; 
arr 
31:0 
25°3 
25°4 
26°8 
25'5 
27°3 
27:0 
29:2 
26°3 
27°6 
Rain followed. 
in 18 hours. 
A days. 
3 Ot 
6c 
a4 
16 hours. 
4 days. 
3 73 
17 hours. 
oo 66 
9 
“c 
I have also given the interval between each of these dates 
