Climate
The Kiamichi Mountains experiance a humid subtropical climate, with long, hot, humid summers, and short and cool winters. Temperatures below zero are very rare, but possible. Light snowfall usually occurs once or twice each winter, but rarely lasts more than 24 hours without melting. Substantial amounts of precipitation fall thoughout the year. Summers can be extremly hot, and are usually very humid. Thunderstorms are common throughout the spring and summer. Higher elevations are substantially cooler than the valleys during the day, and tend to receive more precipitation throughout the year.
| Climate data for Kiamichi Mountains, Oklahoma. (Elevation 2,440ft) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 69 (21) |
76 (24) |
81 (27) |
84 (29) |
85 (29) |
95 (35) |
100 (38) |
103 (39) |
95 (35) |
90 (32) |
74 (23) |
66 (19) |
103 (39) |
| Average high °F (°C) | 46.1 (7.8) |
49.2 (9.6) |
57.3 (14.1) |
69.1 (20.6) |
76.9 (24.9) |
82.0 (27.8) |
85.9 (29.9) |
86.7 (30.4) |
79.4 (26.3) |
70.4 (21.3) |
57.7 (14.3) |
48.6 (9.2) |
67.4 (19.7) |
| Average low °F (°C) | 27.7 (−2.4) |
29.8 (−1.2) |
35.8 (2.1) |
49.0 (9.4) |
58.3 (14.6) |
63.6 (17.6) |
67.0 (19.4) |
66.6 (19.2) |
61.8 (16.6) |
52.9 (11.6) |
39.9 (4.4) |
29.0 (−1.7) |
48.5 (9.2) |
| Record low °F (°C) | −11 (−24) |
9 (−13) |
6 (−14) |
25 (−4) |
37 (3) |
54 (12) |
57 (14) |
53 (12) |
45 (7) |
31 (−1) |
13 (−11) |
1 (−17) |
−11 (−24) |
| Precipitation inches (mm) | 4.49 (114) |
4.37 (111) |
5.14 (130.6) |
6.38 (162.1) |
6.29 (159.8) |
4.56 (115.8) |
5.12 (130) |
3.98 (101.1) |
5.29 (134.4) |
3.86 (98) |
4.30 (109.2) |
3.85 (97.8) |
57.65 (1,464.3) |
| Snowfall inches (cm) | 2.0 (5.1) |
1.4 (3.6) |
0.7 (1.8) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.1 (0.3) |
0.6 (1.5) |
4.8 (12.2) |
| Source: The Western Regional Climate Center | |||||||||||||
| Climate data for Tuskahoma, Oklahoma. (Elevation 600ft) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 78 (26) |
87 (31) |
93 (34) |
96 (36) |
97 (36) |
107 (42) |
112 (44) |
114 (46) |
112 (44) |
101 (38) |
87 (31) |
80 (27) |
114 (46) |
| Average high °F (°C) | 53.1 (11.7) |
58.2 (14.6) |
67.2 (19.6) |
75.2 (24) |
81.3 (27.4) |
88.7 (31.5) |
94.6 (34.8) |
95.0 (35) |
87.3 (30.7) |
77.0 (25) |
64.4 (18) |
55.0 (12.8) |
74.8 (23.8) |
| Average low °F (°C) | 29.1 (−1.6) |
33.1 (0.6) |
41.7 (5.4) |
49.7 (9.8) |
58.5 (14.7) |
66.5 (19.2) |
70.1 (21.2) |
69.1 (20.6) |
61.9 (16.6) |
50.5 (10.3) |
40.7 (4.8) |
31.7 (−0.2) |
50.2 (10.1) |
| Record low °F (°C) | −13 (−25) |
−4 (−20) |
5 (−15) |
21 (−6) |
32 (0) |
40 (4) |
47 (8) |
47 (8) |
32 (0) |
18 (−8) |
7 (−14) |
−10 (−23) |
−13 (−25) |
| Precipitation inches (mm) | 2.94 (74.7) |
2.97 (75.4) |
3.68 (93.5) |
5.10 (129.5) |
5.95 (151.1) |
4.89 (124.2) |
3.38 (85.9) |
2.92 (74.2) |
4.40 (111.8) |
4.45 (113) |
4.02 (102.1) |
3.32 (84.3) |
48.02 (1,219.7) |
| Snowfall inches (cm) | 1.7 (4.3) |
1.3 (3.3) |
0.4 (1) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.1 (0.3) |
0.4 (1) |
4.0 (10.2) |
| Source: The Western Regional Climate Center | |||||||||||||
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