Colorado Climatology 
33 
TABLE XY 7 I—EXTREME MONTHLY MAXIMUM AND MINIMUM 
TEMPERATURES 
At the Colorado Experiment Station, Fort Collins, Colorado. 
June 
July 
August 
j September 
October 
j November 
December 
i Max. 
I Min. 
| Max. 
| Min. 
Max. 
Min. 
Max. 
| Min. 
| Max. 
| Min. 
Max. 
| Min. 
Max.lMin. 
96.0 
97.0 
90.5 
9 o 2 
8 6. 9 
86.5 
95.0 
91.0 
88.7 
91.2 
90.1 
97.2 
90.1 
94.4 
94.4 
96.0 
92.5 
87.2 
92.3 
89.9 
87.7 
91.8 
94.5 
90.3 
92.0 
45.0 
42.0 
35.0 
32.7 
37.9 
35.4 
31.3 
37.9 
33.0 
39.3 
35.3 
36.0 
36.4 
40.7 
38.2 
37.0 
37.0 
38.4 
40.0 
37.2 
33.9 
37.6 
41.3 
38.9 
41.2 
97.0 
99.0 
97.0 
93.4 
89.4 
92.7 
94.9 
94.4 
93.2 
95.5 
94.8 
97.0 
94.0 
92.9 
96.7 
98.0 
95.0 
90.7 
91.0 
92.6 
94.4 
93.1 
94.3 
99.9 
88.0 
50.0 
51.0 
37.5 
46.9 
41.2 
45.3 
44.2 
46.0 
44.9 
48.8 
38.9 
44.3 
44.6 
40.2 
47.9 
38.8 
36.0 
40.3 
42.3 
41.0 
44.6 
43.6 
48.0 
47.0 
45.1 
97.0 
88.0 
97.0 
95.3 
93.1 
99.2 
91.7 
92.2 
93.7 
93.8 
93.5 
95.6 
95.2 
94.0 
96.7 
99.6 
94.6 
91.0 
93.2 
92.0 
91.6 
92.8 
92.6 
92.6 
95.4 
44.0 
44.0 
41.3 
39.5 
36.7 
33.9 
38.3 
39.5 
42.3 
40.2 
42.7 
43.1 
39.7 
41.2 
43.6 
42.3 
41.9 
33.0 
44.8 
39.2 
45.0 
42.5 
46.9 
31.7 
37.1 
91.0 
89.0 
93.0 
85.3 
88.8 
89.3 
90.0 
88.6 
95.0 
90.0 
89.8 
90.2 
94.6 
88.2 
86.6 
89.8 
92.5 
90.0 
90.5 
86.9 
85.6 
91.9 
84.2 
92.0 
89.1 
32.0 
32.0 
23.0 
28.0 
34.3 
27.5 
25.7 
30.9 
23.2 
31.8 
33.8 
29.7 
29.0 
29.7 
29.4 
2 2.01 
26.0 
29.6 
30.8| 
37.3 
31.0 
23.4 
30.2 
34.5| 
32.1 j 
88.0 
75.0 
85.2 
77.0 
79.8 
87.0 
82.0 
80.7 
79.7 
84.2 
81.7 
85.7 
86.7 
83.0 
82.0 
80.0 
81.0 
80.1 
85.3 
83.2 
81.8 
81.0 
81.5 
84.7 
80.2| 
11.0 
20.0 
24.9 
15.7 
19.5 
18.7 
11.8 
19.3 
14.8 
21.0 
21.5 
16.2 
23.7 
12.5 
| 25.0 
25.5 
20.0 
17.8 
— 8.0 
19.4 
22.4 
13.5 
16.3 
16.1 
14.6| 
78.0 
64.0 
61.0 
75.7 
75.9 
67.2 
70.7 
78.0 
73.7 
74.7 
75.6 
71.3 
69.5 
74.0 
| 69.6 
69.2 
71.0 
75.4 
74.0 
70.2 
70.0 
72.2 
76.2 
70.0 
66.9| 
-13.0 
16.0 
1.0 
6.5 
— 6.2 
10.6 
-12.8 
— 1.1 
—2.9 
-11.3 
—3.0 
-11.3 
15.0 
8.7 
| 12.0 
3.81 
- 10.0 
0.5 
3.41 
—9.3 
— 1.2 
- 12.0 
—3.1 
13.6 
- 11 . 0 | 
61.0 
68.0 
66.5 
62.9 
60.0 
65.6 
| 60.4 
64.7 
66.7 
| 66.1 
63.0 
55.0 
63.7 
62.9 
| 64.6 
58.2 
61.0 
65.7 
62.2| 
64.5 
61.7 
54.0 
61.0 
59.7 
62.9| 
0.0 
4.0 
3.0 
5.8 
- 10.0 
-17.4 
| 2.5 
-24.0 
-5.0 
| 0.5 
- 10.8 
-22.3 
-9.3 
- 22.0 
-31.0 
-17.6 
5.0 
1.0 
-4.0 
7.0 
-5.4 
-13.4 
-19.1 
3.4 
- 8.0 
9 2.7 j 
31.3| 
99.9| 
36.0| 
99.6 
31.7 i 
95.0 | 
22 . 0 | 
83.0| 
— 8 . 0 | 
78.0| 
-13.0| 
68.0|-31.0 
TABLE XVII—AVERAGE MONTHLY READINGS OF BLACK AND 
BRIGHT BULBS OF ACTINOMETERS, AT NOON. 
Colorado Experiment Station, Fort Collins, Colorado. 
(Centigrade Degrees.) 
July 
[ August 
September 
October 
November 
December 
Year 
Bik. 
Brt. 
| Bik. 
Brt. 
| Bik. 
Brt. 
Bik. 
Brt. 
Bik. 
Brt. 
Bik. 
Brt. 
Bik. 
Brt. 
36.0 
43.6 
49.0 
49.3 
51.0 
44.6 
47.2 
54.5 
48.6 
46.9 
45.6 
47.2 
43.4 
46.4 
49.0 
49.8 
51.3 
43.4 
24.9 
30.7 
35.8 
36.0 
37.5 
32.7 
35.3 
40.5 
34.8 
34.5 
33.3 
33.7 
31.2 
33.5 
34.8 
35.3 
37.5 
-30.6 
32.9 
44.2 
52.6 
47.6 
55.1 
49.4 
50.2 
52.7 
47.1 
51.8 . 
49.1 
52.4 
47.5 
48.8 
44.4 
48.9 
47.4 
48.0 
22.8 
32.2 
38.2 
34.3 
41.2 
35.7 
37.4 
38.3 
34.8 
37.0 
35.5 
37.5 
34.8 
35.5 
31.5 
36.9 
34.1 
33.9 
24.8 
49.4 
44.8 
50.9 
50.6 
49.9 
53.7 
43.2 
43.1 
45.4 
48.4 
45.4 
40.1 
42.5 
44.9 
44.2 
44.8 
14.9 
35.2 
29.8 
35.0 
35.9 
35.2 
37.6 
27.7 
29.0 
32.2 
32.5 
32.1 
27.9 
29.5 
30.7 
31.4 
31.1 
20.4 
39.6 
43.0 
40.0 
37.0 
31.1 
43.9 
37.8 
29.8 
38.6 
41.4 
37.5 
45.7 
35.1 
46.4 
38.8 
38.2 
’ 9.5 
24.0 
27.1 
26.4 
21.8 
18.9 
29.4 
23.7 
25.3 
24.0 
25.5 
23.0 
28.1 
22.3 
30.i 
24.9 
22.5 
32.8 
7.4 
32.4 
32.1 
33.8 
31.4 
32.0 
28.2 
39.3 
32.5 
31.4 
36.9 
34.7 
39.2 
32.2 
25.5 
28.4 
34.5 
15.7 
1.7 
16.8 
14.1 
18.0 
13.6 
19.1 
15.8 
21.9 
17.5 
16.9 
21.5 
19.5 
21.2 
17.0 
15.3 
16.7 
18.1 
28.2 
32.1 
27.6 
27.9 
28.3 
28.9 
24.5 
33.4 
28.1 
26.8 
30.6 
29.2 
28.9 
26.2 
27.1 
30.6 
24.0 
28.5 
28.2 
13.5 
14.3 
13.0 
14.1 
11.6 
11.5 
10.3 
17.0 
12.3 
11.7 
16.1 
15.8 
14.8 
14.4 
13.3 
13.1 
8.8 
13.3 
11.1 
*30'. i 
38.3 
40.4 
39.2 
39.2 
38.3 
40.2 
39.4 
38.2 
39.0 
38.7 
37.0 
39.8 
37.3 
36.8 
38.8 
39.0 
16*5 
22.9 
24.8 
23.8 
24.0 
22.9 
25.4 
23.9 
23.4 
23.5 
24.1 
22.9 
24.8 
23.3 
2*2.7 
24.7 
23.7 
47.0 
34.0 
48.3 
35.1 
45.1 
31.0 
38.5 
23.9 i 
31.4 
16.7 
28.4 
13.2 | 
38.3 
23.4 
54.5 
40.5 
55.1 
41.2 
53.7 
37.6 
46.4 | 
30.1 
39.3 
21.9 
33.4 
17.0 | 
40.4 
25.4 
36.0 
24.9 | 
32.9 
22.8 
24.8 
14.9 | 
20.4 | 
9.5 
7.4 
1.7 
24.0 
8.8 | 
30.1 | 
16.5 
