| City | Latitude | Longitude | Elev. (m) | December high temp. (deg C) | January high temp. (deg. C) | February high temp. (deg C) | Mean high temp. (deg C) |
| Glendive | 47.11 | −104.71 | 629 | −1.5 | −3.7 | 0.9 | −1.43 |
| Glasgow | 48.20 | −106.64 | 638 | −4 | −6.7 | −2.1 | −4.27 |
| Missoula | 46.86 | −114.02 | 978 | −0.6 | 0.7 | 3.8 | 1.30 |
| Jackson | 45.37 | −113.41 | 1977 | −2.11 | −2.5 | 0.33333 | −1.43 |
| Wisdom | 45.61 | −113.45 | 1844 | −2.2 | −3.11 | −0.5 | −1.94 |
| West Yellowstone | 44.66 | −111.11 | 2031 | −4.4 | −4.4 | −0.08 | −2.96 |
| Big Sky | 45.26 | −111.31 | 1900 | −1.3889 | −0.444 | 1.7778 | −0.02 |
| Great Falls | 47.50 | −111.29 | 1015 | 1.4 | 1.9 | 3.5 | 2.27 |
| Butte | 46.00 | −112.53 | 1688 | −1 | −1 | 2 | 0.00 |
| Bozeman | 45.68 | −111.06 | 1461 | 0.9 | −0.02 | 1.9 | 0.93 |
| Helena | 46.61 | −112.03 | 1237 | −0.2 | 0.7 | 3.7 | 1.40 |
| Cut bank | 48.64 | −112.33 | 1150 | −1.2 | −2 | 0.9 | −0.77 |
| Kalispell | 48.20 | −114.31 | 901 | −1.3 | −1.6 | 2.2 | −0.23 |
| Red Lodge | 45.19 | −109.24 | 1697 | 1.9 | 1.2 | 3 | 2.03 |
| Billings | 45.79 | −108.50 | 952 | 4 | 4.8 | 7.3 | 5.37 |
| Cody WY | 44.52 | −109.07 | 1523 | 2.2 | 3 | 4.6 | 3.27 |
| Plentywood Mt | 48.78 | −104.56 | 624 | −4.2 | −6.2 | −1.2 | −3.87 |
| Dillon, MT | 45.21 | −112.63 | 1560 | 1.2 | 1.3 | 4.7 | 2.40 |
| Ennis, MT | 45.35 | −111.73 | 1506 | 0.7 | 1.7 | 3.8 | 2.07 |
| Virginia City | 45.29 | −111.94 | 1788 | 1.2 | 0.9 | 3.3 | 1.80 |
| Lima, Mt | 44.64 | −112.59 | 1907 | −2.2 | −2.4 | 0.6 | −1.33 |
| Deer Lodge | 46.40 | −112.74 | 1382 | 1.7 | 1.7 | 4.5 | 2.63 |
| Ovando | 47.02 | −113.13 | 1253 | −1.5 | −1.7 | 1.5 | −0.57 |
| Boulder MT | 46.24 | −112.12 | 1498 | 1.4 | 1.3 | 4.2 | 2.30 |
| Jackson, WY | 43.48 | −110.76 | 1907 | −2.1 | −2.1 | 0.8 | −1.13 |
| Norris, Mt | 45.57 | −111.69 | 1471 | 2 | 1.8 | 4.4 | 2.73 |
| Sula | 45.84 | −113.98 | 1351 | −0.2 | 0.2 | 4.1 | 1.37 |
| Darby MT | 46.02 | −114.12 | 1185 | 2.4 | 2.2 | 5.7 | 3.43 |
| Hamilton, MT | 46.25 | −114.15 | 1091 | 1.1 | 1.3 | 4.9 | 2.43 |
| Alberton MT | 47.00 | −114.48 | 937 | 0.1 | 1.6 | 4.7 | 2.13 |
| Polson, MT | 47.69 | −114.16 | 895 | 0.6 | 0.3 | 3.4 | 1.43 |
| West Glacier, MT | 48.50 | −113.98 | 976 | −1.3 | −1.5 | 1.6 | −0.40 |
| Essex, MT | 48.28 | −113.61 | 1168 | −2.1 | −1.6 | 0.4 | −1.10 |
| Babb, MT | 48.86 | −113.44 | 1379 | 1.1 | 0.6 | 3 | 1.57 |
| Valier, Mt | 48.31 | −112.25 | 1165 | 1.1 | 0.2 | 2.9 | 1.40 |
| Conrad | 48.17 | −111.94 | 1072 | 1.1 | −0.2 | 2.9 | 1.27 |
| Sunburst | 48.88 | −111.91 | 1023 | −0.2 | −1.4 | 2 | 0.13 |
| Shelby, MT | 48.51 | −111.86 | 1003 | 1 | 1.3 | 3.9 | 2.07 |
| Choteau | 47.81 | −112.18 | 1165 | 2.1 | 0.9 | 4 | 2.33 |
| Fairfield | 47.62 | −111.98 | 1215 | 1.3 | −0.2 | 3.1 | 1.40 |
| Sun River | 47.53 | −111.72 | 1041 | 2.1 | 1.3 | 4.4 | 2.60 |