Monthly Precipitation Data
Grand Rapids, Michigan
(July 1967 through June 1977)

Month/Year

Actual
precipitation

Normal
precipitation

Deviation
from normal

Snowfall/Ice

Cumulative
seasonal snowfall
July 1967 2.77 2.73 0.04 0 0
Aug. 1967 3.34 2.7 0.64 0 0
Sept. 1967 2.37 2.98 -0.61 Trace Trace
Oct. 1967 4.42 2.61 1.81 8.4 8.4
Nov. 1967 4.35 2.49 1.86 11 19.4
Dec. 1967 3.6 2.03 1.57 9.6 29
Jan. 1968 1.55 1.91 -0.36 11.8 40.8
Feb. 1968 2.12 1.75 0.37 8.5 49.3
Mar. 1968 1.08 2.28 -1.2 4.2 53.5
April 1968 2.4 2.94 -0.54 1.6 55.1
May 1968 2.67 3.46 -0.79 0 55.1
June 1968 5.02 3.31 1.71 0 55.1
July 1968 2.74 2.73 0.01 0 0
Aug. 1968 2.86 2.7 0.16 0 0
Sept. 1968 4.21 2.98 1.23 0 0
Oct. 1968 4.05 2.61 1.44 0 0
Nov. 1968 4.28 2.49 1.79 4.2 4.2
Dec. 1968 3.16 2.03 1.13 26.2 30.4
Jan. 1969 2.39 1.91 0.48 27.7 58.1
Feb. 1969 0.33 1.75 -1.42 6.3 64.4
Mar. 1969 1.29 2.28 -0.99 7.9 72.3
April 1969 5.16 2.94 2.22 0 72.3
May 1969 3.4 3.46 -0.06 0 72.3
June 1969 4.74 3.31 1.43 0 72.3
July 1969 6.42 2.73 3.69 0 0
Aug. 1969 0.14 2.7 -2.56 0 0
Sept. 1969 0.93 2.98 -2.05 0 0
Oct. 1969 6.3 2.61 3.69 Trace Trace
Nov. 1969 3 2.49 0.51 14.3 14.3
Dec. 1969 0.66 1.75 -1.37 11.8 26.1
Jan. 1970 1.18 1.91 -0.73 23.2 49.3
Feb. 1970 0.51 1.75 -1.24 8.2 57.5
Mar. 1970 2.43 2.28 0.15 19.3 76.8
April 1970 3.27 2.94 0.33 7.8 84.6
May 1970 4.24 3.46 0.78 0 84.6
June 1970 6.53 3.31 3.22 0 84.6
July 1970 6.32 2.73 3.59 0 0
Aug. 1970 2.89 2.7 0.19 0 0
Sept. 1970 7.18 2.98 4.2 0 0
Oct. 1970 3.65 2.61 1.04 0 0
Nov. 1970 3.42 2.49 0.93 6.1 6.1
Dec. 1970 1.89 1.75 -0.14 33.3 39.4
Jan. 1971 1.04 1.91 -0.87 27.2 66.6
Feb. 1971 2.48 1.75 0.73 4.4 71
Mar. 1971 1.77 2.28 -0.51 25.9 96.9
April 1971 2.27 2.94 -0.67 4.1 101
May 1971 1.05 3.46 -2.41 0 101
June 1971 2.01 3.31 -1.3 0 101
July 1971 2.46 2.73 -0.27 0 0
Aug. 1971 0.92 2.7 -1.78 0 0
Sept. 1971 6.3 2.98 3.32 0 0
Oct. 1971 1.39 2.61 -1.22 0 0
Nov. 1971 2.84 2.49 0.35 14.9 14.9
Dec. 1971 6.63 2.03 4.6 3.7 18.6
Jan. 1972 1.26 1.91 -0.65 22.6 41.2
Feb. 1972 0.9 1.75 -0.85 16.9 58.1
Mar. 1972 2.11 2.28 -0.17 14.2 72.3
April 1972 3.85 2.94 0.91 7.5 79.8
May 1972 1.99 3.46 -1.47 0 79.8
June 1972 4.64 3.31 1.33 0 79.8
July 1972 3.72 2.73 0.99 0 0
Aug. 1972 5.01 2.7 2.31 0 0
Sept. 1972 3.96 2.98 0.98 0 0
Oct. 1972 2.92 2.61 0.31 0.9 0.9
Nov. 1972 2.06 2.49 -0.43 11 11.9
Dec. 1972 4.96 2.03 2.93 19.8 31.7
Jan. 1973 1.66 1.91 -0.25 7 38.7
Feb. 1973 1.15 1.75 -0.6 13.2 51.9
Mar. 1973 3.34 2.28 1.06 8.5 60.4
April 1973 3.47 2.94 0.53 5 65.4
May 1973 4.31 3.46 0.85 0.1 65.5
June 1973 3.58 3.31 0.27 0 65.5
July 1973 2.06 2.73 -0.67 0 0
Aug. 1973 1.45 2.7 -1.25 0 0
Sept. 1973 2.47 2.98 -0.51 0 0
Oct. 1973 4.12 2.61 1.51 0 0
Nov. 1973 3.54 2.49 1.05 0.4 0.4
Dec. 1973 3.28 2.03 1.25 20 20.4
Jan. 1974 3.23 1.94 1.29 13.3 33.7
Feb. 1974 2.09 1.5 0.59 18.4 52.1
Mar. 1974 5.12 2.5 2.62 11.3 63.4
April 1974 2.93 3.39 -0.46 1 64.4
May 1974 4.01 3.19 0.82 Trace 64.4
June 1974 4.43 3.42 1.01 0 64.4
July 1974 0.97 3.09 -2.12 0 0
Aug. 1974 4.61 2.54 2.07 0 0
Sept. 1974 2.05 3.3 1.25 0 0
Oct. 1974 2.44 2.56 -0.12 0.4 0.4
Nov. 1974 3.11 2.8 0.31 8.9 9.3
Dec. 1974 1.83 2.16 -0.33 16.5 25.8
Jan. 1975 4.36 1.94 2.42 10.7 36.5
Feb. 1975 1.92 1.5 0.42 10.6 47.1
Mar. 1975 2.28 2.5 -0.22 11.8 58.9
April 1975 4.07 3.39 0.68 10 68.9
May 1975 2.08 3.19 -1.11 0 68.9
June 1975 5.97 3.42 2.55 0 68.9
July 1975 2.31 3.09 -0.78 0 0
Aug. 1975 7.38 2.54 4.84 0 0
Sept. 1975 2 3.3 -1.3 0 0
Oct. 1975 1.04 2.56 -1.52 0 0
Nov. 1975 3.82 2.8 1.02 6.6 6.6
Dec. 1975 4.02 2.16 1.86 23.3 29.9
Jan. 1976 1.67 1.94 -0.27 25 54.9
Feb. 1976 2.13 1.5 0.63 6.5 61.4
Mar. 1976 4.99 2.5 2.49 3.5 64.9
April 1976 4.75 3.39 1.36 4.2 69.1
May 1976 6.63 3.19 3.44 0.1 69.2
June 1976 4.75 3.42 1.36 0 69.2
July 1976 0.81 3.09 -2.28 0 0
Aug. 1976 1.03 2.54 -1.51 0 0
Sept. 1976 1.21 3.3 -2.09 0 0
Oct. 1976 2 2.56 -0.56 2 2
Nov. 1976 1.51 2.8 -1.29 8.5 10.5
Dec. 1976 1.05 2.16 -1.11 17.7 28.2
Jan. 1977 1.59 1.94 -0.35 26.1 54.3
Feb. 1977 1.35 1.5 -0.15 5 59.3
Mar. 1977 3.81 2.5 1.31 9.5 68.8
Apr. 1977 4.04 3.39 0.65 2 70.8
May 1977 1.33 3.19 -1.86 0 70.8
June 1977 3.5 3.42 0.08 0 70.8