Washington Weather In July
In the last 105 years the highest measured temperature in Washington DC for July was 102 degrees Fahrenheit, registered on July 15, 1966, while the mean high temperature is 87. The lowest measured temperature in Washington for the last 105 years in July was 45 most recently encountered on July 6, 1979, while the mean low daily temperature during the month is 64.
United States National Weather Service historical Washington July weather data indicates that on July 31, 1972, the measured high temperature did not exceed 65 degrees Fahrenheit, the lowest high measured in Washington in the past 105 years. Weather Service records also indicate that on July 12, 1977, the low temperature for the day was not measured below 75 degrees, the highest low measured in Washington in the last 105 years.
National Weather Service records indicate that the high temperature in Washington on July First averages 87 degrees and the high on the last day of the month averages 85 degrees. The low measured temperature in Washington on July First averages 60 degrees and the low on the last day of the month averages 61 degrees.
Washington typically receives an average of 3.57 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by July Washington Weather data, was 4.4 inches on July 13, 1964.