Mcgrath AP
| Normal | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Mean Minimum | -15.3 | -9.5 | -1.6 | 18.6 | 36.1 | 46.7 | 50.7 | 45.8 | 36.1 | 18.3 | -2.1 | -11.8 |
| Mean | -6.5 | 1.4 | 11.6 | 29.7 | 46.7 | 57.4 | 60.0 | 54.6 | 44.6 | 25.1 | 5.5 | -3.2 |
| Mean Maximimum | 2.3 | 12.4 | 24.8 | 40.8 | 57.3 | 68.1 | 69.3 | 63.4 | 53.1 | 31.9 | 13.2 | 5.4 |
| Mean Precipitation | 1.09 | 0.94 | 0.81 | 0.74 | 1.09 | 1.52 | 2.38 | 2.80 | 2.49 | 1.44 | 1.41 | 1.29 |
| Snowfall | 15.7 | 13.1 | 11.3 | 5.1 | 0.9 | 0.0 | 0.0 | 0.0 | 1.5 | 10.2 | 19.3 | 20.2 |
| CDD | 0 | 0 | 0 | 0 | 0 | 6 | 12 | 2 | 0 | 0 | 0 | 0 |
| HDD | 2216 | 1779 | 1655 | 1059 | 567 | 234 | 167 | 324 | 612 | 1237 | 1783 | 2114 |
| Temperature Extremes | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Highest Daily Maximum (°F) | 54 | 55 | 55 | 68 | 86 | 94 | 89 | 89 | 76 | 67 | 49 | 49 |
| Year | 1945 | 1943 | 1998 | 2009 | 2013 | 2013 | 1975 | 1977 | 1949 | 2009 | 1967 | 1977 |
| Lowest Daily Minimum (°F) | -75 | -64 | -51 | -40 | -2 | 27 | 31 | 25 | 2 | -28 | -53 | -67 |
| Year | 1989 | 1947 | 1956 | 1985 | 1945 | 2006 | 2003 | 1984 | 1992 | 1982 | 1990 | 1961 |
| Highest Mean (°F) | 14.39 | 15.77 | 27.15 | 38.83 | 53.02 | 62.93 | 63.55 | 61.02 | 49.65 | 38.66 | 21.38 | 10.18 |
| Year | 1981 | 2003 | 1965 | 2007 | 2005 | 1957 | 1997 | 1977 | 1995 | 2013 | 1979 | 1985 |
| Lowest Mean (°F) | -28.53 | -21.89 | -5.87 | 10.93 | 35.21 | 50.43 | 54.63 | 48.42 | 33.6 | 14.16 | -8.32 | -25.45 |
| Year | 2012 | 1990 | 1959 | 1985 | 1964 | 1949 | 1959 | 1969 | 1992 | 1965 | 1975 | 1980 |
| Precipitation Extremes | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Highest 1-Day Maximum Precipitation (in) | 1.16 | 1.04 | 1.07 | 1.03 | 1 | 1.59 | 1.5 | 1.51 | 1.73 | 1.32 | 1.2 | 1.56 |
| Year | 2005 | 1956 | 1946 | 1960 | 1995 | 1994 | 1975 | 1961 | 2000 | 1941 | 2010 | 1970 |
| Highest Total Precipitation (in) | 3.74 | 3.72 | 2.82 | 2.78 | 3.07 | 4.36 | 5.36 | 6.26 | 6.18 | 4.64 | 4.34 | 5.02 |
| Year | 1993 | 2003 | 1991 | 1964 | 1988 | 1950 | 1975 | 1945 | 1993 | 2013 | 1979 | 1990 |
| Lowest Total Precipitation (in) | 0.1 | 0 | 0.01 | 0.01 | 0.07 | 0.15 | 0.38 | 0.8 | 0.19 | 0.14 | 0.02 | 0.05 |
| Year | 1961 | 1979 | 1983 | 1943 | 2013 | 2000 | 1993 | 1968 | 1969 | 1965 | 1963 | 1942 |
| Snow Extremes | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Highest 1-Day Maximum Snow (in) | 16.2 | 14.7 | 12 | 12.7 | 6.8 | 0.1 | 0 | 0.9 | 7.3 | 8.5 | 14.2 | 13 |
| Year | 2005 | 2000 | 1982 | 1964 | 1971 | 1975 | 1939 | 1998 | 1992 | 1971 | 1946 | 1941 |
| Highest Total Snow (in) | 42.2 | 38 | 35.8 | 32.8 | 10.7 | 0.1 | 0 | 0.9 | 13.7 | 32.1 | 53.6 | 54.2 |
| Year | 1993 | 1944 | 1990 | 1964 | 1992 | 1975 | 1939 | 1998 | 1992 | 1971 | 1994 | 1990 |
| Lowest Total Snow (in) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Year | 1940 | 1940 | 1940 | 1939 | 1939 | 1939 | 1939 | 1939 | 1940 | 1939 | 1939 | 1939 |