WEATHER IN McCook
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -30 (1912) | 16.1 | 28.7 | 41.2 | 77 (2002) |
| february | -26 (1933) | 18.5 | 31.5 | 44.6 | 83 (1930) |
| march | -20 (1960) | 27.3 | 41.8 | 56.3 | 91 (1910) |
| april | 0 (1936) | 36.3 | 50.6 | 64.9 | 98 (1939) |
| may | 14 (1909) | 47.5 | 61.1 | 74.8 | 106 (2002) |
| june | 33 (1998) | 58.4 | 72.2 | 86.0 | 115 (2012) |
| july | 43 (1915) | 64.0 | 77.6 | 91.2 | 114 (1932) |
| august | 39 (1928) | 61.7 | 75.2 | 88.6 | 111 (1930) |
| september | 22 (1912) | 51.5 | 66.4 | 81.4 | 107 (1929) |
| october | -1 (1913) | 37.7 | 52.6 | 67.5 | 98 (1928) |
| november | -11 (1940) | 25.2 | 39.3 | 53.4 | 88 (1912) |
| december | -27 (1989) | 17.0 | 29.7 | 42.3 | 81 (1964) |
| year | -30 (1912) | 36.5 | 50.7 | 64.8 | 115 (2012) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 0.26 | 0.00 (1897) | 2.36 (1944) | 1.57 (1882) |
| february | 0.35 | 0.00 (1889) | 2.63 (1960) | 1.96 (1882) |
| march | 0.90 | 0.00 (1893) | 4.20 (1977) | 3.93 (1882) |
| april | 1.81 | 0.00 (1893) | 8.22 (1944) | 7.87 (1882) |
| may | 3.08 | 0.00 (1894) | 7.39 (1923) | 6.30 (1882) |
| june | 3.09 | 0.00 (1979) | 8.55 (1915) | 7.87 (1882) |
| july | 3.32 | 0.02 (2002) | 10.86 (1905) | 7.87 (1882) |
| august | 3.13 | 0.14 (1983) | 6.95 (1925) | 6.30 (1882) |
| september | 1.63 | 0.00 (1921) | 7.11 (1973) | 6.30 (1882) |
| october | 1.43 | 0.00 (1899) | 7.62 (1946) | 6.30 (1882) |
| november | 0.61 | 0.00 (1882) | 3.73 (1975) | 3.54 (1882) |
| december | 0.44 | 0.00 (1896) | 3.19 (1913) | 3.15 (1882) |
| year | 22.53 | 8.72 (2012) | 38.80 (1930) | 7.87 (1882) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |