Washington D.C. Weather in 1978

Historical record of Washington D.C. weather for the year 1978 based on NOAA data.
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1978 Washington D.C. Weather Extremes
Highest temperature 100 °F July 23
Lowest temperature 10 °F January 10
Highest daily low 81 °F July 23
Lowest daily high 23 °F January 10
Most daily precipitation 2.2 inches March 26
Most daily snow 4.6 inches January 13
Total annual precipitation 39.6 inches -
Total annual snow 25.5 inches -
Highest Temperatures in Washington D.C. in 1978
Rank Temperature Date
1 100 °F Jul 23
2 98 °F Jul 22
3 97 °F Jun 27
4 96 °F Jul 27
4 96 °F Jun 19
6 95 °F Jul 21
6 95 °F Jul 10
8 94 °F Sep 19
8 94 °F Jun 18
10 93 °F Sep 7
10 93 °F Aug 29
10 93 °F Aug 25
10 93 °F Aug 24
10 93 °F Aug 19
10 93 °F Aug 17
10 93 °F Aug 16
10 93 °F Jun 30
Lowest Temperatures in Washington D.C. in 1978
Rank Temperature Date
1 10 °F January 10
2 14 °F January 9
3 16 °F March 5
3 16 °F January 11
5 18 °F February 7
5 18 °F February 4
5 18 °F February 1
5 18 °F January 4
9 19 °F February 6
9 19 °F February 5
9 19 °F January 31
9 19 °F January 29
9 19 °F January 23
9 19 °F January 16
9 19 °F January 12
January 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
38 31 0.02 0.0
41 29 0.00 0.0
36 24 0.00 0.0
37 18 0.00 0.0
45 28 0.00 0.0
48 37 0.00 0.0
44 40 0.00 0.0
62 41 0.83 0.0
62 14 0.91 0.6
23 10 0.00 0.0
34 16 0.00 0.0
40 19 0.00 0.0
36 30 1.13 4.6
37 31 0.10 0.0
33 24 0.01 0.0
34 19 0.00 0.1
38 31 1.03 0.9
40 29 0.00 0.0
36 27 0.29 3.0
37 30 0.48 1.1
36 31 0.00 0.0
35 23 0.00 0.0
39 19 0.00 0.0
42 22 0.03 0.0
44 35 1.66 0.0
59 26 0.62 0.0
36 25 0.00 0.0
30 20 0.00 0.0
31 19 0.00 0.0
34 22 0.00 0.0
35 19 0.00 0.0
February 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
33 18 0.00 0.0
34 23 0.04 0.3
34 21 0.00 0.0
32 18 0.00 0.0
33 19 0.06 0.6
26 19 0.14 1.6
30 18 0.00 0.0
38 21 0.00 0.0
39 22 0.00 0.0
36 20 0.00 0.0
40 20 0.00 0.0
45 27 0.00 0.0
37 24 0.17 1.3
39 32 0.00 0.0
41 26 0.00 0.0
41 29 0.01 0.0
41 33 0.00 0.0
43 35 0.00 0.0
36 23 0.00 0.0
38 21 0.00 0.0
41 26 0.00 0.0
34 21 0.00 0.0
41 22 0.00 0.0
46 29 0.00 0.0
54 32 0.00 0.0
45 32 0.00 0.0
40 26 0.00 0.0
36 28 0.00 0.0
March 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
39 28 0.08 0.8
35 22 0.00 0.0
33 27 0.42 4.1
35 22 0.00 0.0
35 16 0.00 0.0
39 27 0.00 0.0
38 30 0.00 0.0
35 28 0.28 3.4
38 31 0.00 0.0
45 36 0.45 0.0
55 34 0.00 0.0
61 44 0.00 0.0
54 40 0.00 0.0
64 43 0.17 0.0
58 43 0.00 0.0
45 37 0.15 0.0
45 35 0.00 0.0
46 32 0.00 0.0
74 42 0.00 0.0
61 41 0.00 0.0
79 41 0.09 0.0
66 46 0.00 0.0
75 46 0.00 0.0
59 46 0.00 0.0
46 38 0.27 0.0
49 38 2.16 0.0
61 43 0.41 0.0
65 46 0.00 0.0
67 47 0.00 0.0
54 38 0.00 0.0
64 42 0.00 0.0
April 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
88 47 0.00 0.0
75 47 0.00 0.0
49 43 0.02 0.0
70 43 0.00 0.0
69 52 0.00 0.0
58 46 0.02 0.0
77 47 0.08 0.0
74 52 0.00 0.0
65 40 0.00 0.0
69 52 0.00 0.0
85 52 0.10 0.0
74 51 0.00 0.0
80 56 0.00 0.0
69 47 0.00 0.0
65 44 0.00 0.0
61 40 0.00 0.0
67 47 0.00 0.0
64 47 0.38 0.0
58 51 0.48 0.0
63 50 0.00 0.0
60 45 0.00 0.0
63 42 0.00 0.0
66 41 0.00 0.0
72 49 0.00 0.0
64 49 0.07 0.0
54 48 0.23 0.0
60 46 0.00 0.0
74 43 0.00 0.0
77 47 0.00 0.0
73 56 0.00 0.0
May 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
62 46 0.00 0.0
70 42 0.00 0.0
71 49 0.00 0.0
56 46 1.26 0.0
55 48 0.06 0.0
66 51 0.02 0.0
68 55 0.00 0.0
61 54 0.53 0.0
83 60 0.34 0.0
70 54 0.00 0.0
74 49 0.00 0.0
81 57 0.00 0.0
74 56 0.34 0.0
69 56 0.56 0.0
68 58 1.24 0.0
61 55 0.55 0.0
72 56 0.00 0.0
79 55 0.02 0.0
80 60 0.00 0.0
87 60 0.00 0.0
86 64 0.00 0.0
77 53 0.00 0.0
79 58 0.08 0.0
78 64 0.13 0.0
88 62 0.00 0.0
88 65 0.00 0.0
77 67 0.00 0.0
80 67 0.00 0.0
81 67 0.00 0.0
86 67 0.00 0.0
83 69 0.00 0.0
June 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
89 70 0.00 0.0
90 69 0.00 0.0
85 69 0.10 0.0
79 62 0.00 0.0
88 63 0.02 0.0
84 63 0.00 0.0
81 67 0.12 0.0
80 75 0.04 0.0
86 68 0.00 0.0
84 60 0.00 0.0
87 64 0.00 0.0
89 65 0.00 0.0
79 58 0.40 0.0
76 54 0.00 0.0
78 56 0.00 0.0
83 60 0.00 0.0
78 70 0.00 0.0
94 71 0.00 0.0
96 75 0.10 0.0
88 69 0.00 0.0
88 70 0.52 0.0
87 69 0.00 0.0
86 69 0.00 0.0
86 66 0.00 0.0
88 67 0.00 0.0
88 73 0.02 0.0
97 73 0.71 0.0
92 72 0.02 0.0
92 71 0.38 0.0
93 71 0.00 0.0
July 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
86 70 0.00 0.0
75 64 0.31 0.0
70 65 1.72 0.0
75 65 0.00 0.0
83 62 0.00 0.0
85 64 0.00 0.0
86 66 0.00 0.0
90 70 0.24 0.0
92 72 0.00 0.0
95 75 0.55 0.0
80 67 0.02 0.0
81 63 0.00 0.0
84 62 0.00 0.0
82 74 0.00 0.0
89 73 0.00 0.0
77 73 0.02 0.0
87 69 0.00 0.0
90 69 0.00 0.0
92 74 0.00 0.0
92 73 0.00 0.0
95 74 0.00 0.0
98 78 0.00 0.0
100 81 0.00 0.0
90 78 0.12 0.0
82 74 0.00 0.0
87 72 0.00 0.0
96 76 0.00 0.0
92 72 0.15 0.0
89 66 0.00 0.0
90 76 0.31 0.0
88 72 0.84 0.0
August 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
85 73 0.04 0.0
85 76 0.15 0.0
89 75 0.06 0.0
81 74 0.47 0.0
87 74 0.46 0.0
87 76 0.00 0.0
90 77 0.00 0.0
90 77 0.00 0.0
91 73 0.32 0.0
89 73 0.00 0.0
90 73 0.59 0.0
87 73 0.09 0.0
85 75 1.21 0.0
90 74 0.06 0.0
90 77 0.00 0.0
93 76 0.00 0.0
93 78 0.00 0.0
90 73 0.00 0.0
93 74 0.00 0.0
85 72 0.00 0.0
85 66 0.00 0.0
86 65 0.00 0.0
89 66 0.00 0.0
93 70 0.00 0.0
93 77 0.00 0.0
88 75 0.00 0.0
87 76 0.36 0.0
90 76 0.00 0.0
93 76 0.00 0.0
90 74 2.01 0.0
86 74 0.03 0.0
September 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
79 70 0.00 0.0
84 66 0.00 0.0
87 70 0.00 0.0
85 69 0.00 0.0
88 65 0.00 0.0
90 69 0.00 0.0
93 72 0.00 0.0
88 75 0.00 0.0
87 72 0.00 0.0
79 66 0.00 0.0
87 72 0.00 0.0
89 73 0.54 0.0
74 63 0.00 0.0
72 62 0.00 0.0
81 66 0.10 0.0
87 67 0.10 0.0
86 69 0.00 0.0
90 72 0.00 0.0
94 66 0.02 0.0
79 65 0.00 0.0
84 68 0.00 0.0
86 65 0.25 0.0
72 61 0.00 0.0
73 59 0.00 0.0
81 60 0.00 0.0
71 55 0.00 0.0
75 55 0.00 0.0
77 58 0.00 0.0
68 50 0.00 0.0
75 52 0.00 0.0
October 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
75 64 0.00 0.0
74 56 0.00 0.0
72 50 0.00 0.0
69 60 0.27 0.0
66 60 0.55 0.0
72 55 0.03 0.0
63 49 0.00 0.0
58 49 0.00 0.0
60 40 0.00 0.0
67 45 0.00 0.0
74 50 0.00 0.0
79 54 0.00 0.0
83 63 0.00 0.0
70 50 0.00 0.0
61 45 0.00 0.0
61 46 0.07 0.0
61 48 0.00 0.0
65 41 0.00 0.0
66 52 0.09 0.0
67 50 0.00 0.0
73 45 0.00 0.0
79 48 0.00 0.0
85 53 0.05 0.0
59 43 0.00 0.0
68 40 0.00 0.0
82 60 0.01 0.0
70 46 0.09 0.0
68 43 0.00 0.0
67 44 0.00 0.0
63 44 0.00 0.0
66 48 0.00 0.0
November 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
70 46 0.00 0.0
71 42 0.00 0.0
72 45 0.00 0.0
60 52 0.02 0.0
74 49 0.00 0.0
76 45 0.00 0.0
72 50 0.00 0.0
59 45 0.00 0.0
65 39 0.00 0.0
66 44 0.00 0.0
66 53 0.04 0.0
64 50 0.00 0.0
57 50 0.00 0.0
69 53 0.00 0.0
65 52 0.11 0.0
52 48 0.03 0.0
61 48 0.50 0.0
68 48 0.14 0.0
57 40 0.00 0.0
55 39 0.00 0.0
55 41 0.00 0.0
47 43 0.00 0.0
52 44 0.12 0.0
61 46 0.00 0.0
46 43 0.00 0.0
48 34 0.08 0.8
38 34 0.81 2.3
50 37 0.00 0.0
47 34 0.46 0.0
55 38 0.00 0.0
December 1978 Washington D.C. Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
51 37 0.00 0.0
57 35 0.00 0.0
56 43 0.19 0.0
73 50 0.74 0.0
53 44 0.38 0.0
59 39 0.00 0.0
58 39 0.00 0.0
74 55 0.16 0.0
69 33 0.83 0.0
36 25 0.00 0.0
37 23 0.00 0.0
48 29 0.00 0.0
60 31 0.00 0.0
45 31 0.00 0.0
59 32 0.00 0.0
59 35 0.00 0.0
52 39 0.00 0.0
56 36 0.00 0.0
46 37 0.00 0.0
47 35 0.35 0.0
55 39 0.06 0.0
49 32 0.00 0.0
53 31 0.00 0.0
48 34 0.93 0.0
49 37 0.00 0.0
48 31 0.00 0.0
41 28 0.00 0.0
37 25 0.00 0.0
38 22 0.00 0.0
43 28 0.00 0.0
45 37 0.36 0.0
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location