GRANDFALLS 3 SSE, TEXAS

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 60.8 67.1 75.4 83.6 91.0 96.7 98.0 96.1 90.0 81.7 70.3 61.6 81.0
Highest Mean Max. Temperature (F) 68.9 75.7 82.7 92.0 99.8 104.3 103.8 101.7 99.1 88.6 77.8 67.9 104.3
Year Highest Occurred 1999 1976 1974 1972 1996 1998 1980 1977 1977 1979 1973 1981 1998
Lowest Mean Max. Temperature (F) 50.9 58.5 68.7 74.9 83.5 91.0 91.6 89.4 80.6 75.2 61.3 53.6 50.9
Year Lowest Occurred 1979 1978 1987 1997 1992 1987 1990 1971 1974 1986 1976 1983 1979
Mean Temperature (F) 43.8 49.2 57.3 65.7 74.5 82.0 84.0 82.3 75.9 65.9 53.6 44.9 64.9
Highest Mean Temperature (F) 49.3 56.0 62.5 71.6 80.5 89.4 88.1 87.2 82.6 70.3 58.3 49.2 89.4
Year Highest Occurred 1999 2000 1974 1986 1996 1990 1980 1977 1977 1998 1999 1994 1990
Lowest Mean Temperature (F) 38.0 43.8 51.7 59.7 69.6 77.9 79.6 77.1 69.0 59.5 46.7 38.1 38.0
Year Lowest Occurred 1973 1978 1996 1973 1976 1987 1975 1971 1974 1976 1976 1983 1973
Mean Min. Temperature (F) 26.7 31.2 39.2 47.7 57.9 67.2 70.0 68.5 61.8 50.0 36.8 28.1 48.8
Highest Mean Min. Temperature (F) 31.5 36.9 44.2 54.2 61.8 74.5 73.0 72.7 66.1 56.8 44.6 35.8 74.5
Year Highest Occurred 1993 2000 1985 1986 1977 1990 1993 1977 1977 1998 1978 1984 1990
Lowest Mean Min. Temperature (F) 21.6 24.7 32.0 41.4 53.2 63.6 66.4 64.8 56.8 43.3 30.2 21.5 21.5
Year Lowest Occurred 1996 1974 1996 1973 1975 1973 1975 1971 1975 1976 1979 1989 1989
Mean Precipitation (in.) 0.47 0.62 0.37 0.77 1.73 1.31 1.25 1.77 2.48 1.27 0.63 0.67 13.34
Highest Precipitation (in.) 1.76 2.72 1.70 4.83 6.06 4.37 3.54 6.50 7.50 6.44 3.44 3.76 7.50
Year Highest Occurred 1992 1992 1973 1981 1992 1985 1973 1971 1980 1986 1978 1986 1980
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00
Year Lowest Occurred 1996 1999 1994 1998 1998 1993 1984 1973 1982 1996 1993 1985 1996
Heating Degree Days (F) 660. 444. 251. 88. 10. 0. 0. 0. 6. 66. 352. 625. 2502.
Cooling Degree Days (F) 0. 0. 14. 107. 303. 509. 589. 536. 334. 93. 9. 0. 2494.

Western Regional Climate Center, wrcc@dri.edu