Summary of observations in Washington DCNote that the numbers below should be used very carefully. These numbers are not official recordings and are based on previous observations in Washington DC. There may be observations in between those listed here that have higher or lower values. | | Lowest | Highest |
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| Value | Time | Value | Time |
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| Temperature | 42 °F | Mar 17 at 4:52 AM | 73 °F | Mar 20 at 2:52 PM | | | | | | Humidity | 16% | Mar 18 at 4:52 PM | 90% | Mar 14 at 8:52 AM | | | | | | Barometer | 29.38 "Hg | Mar 14 at 3:52 AM | 30.09 "Hg | Mar 17 at 8:52 AM | | | | |
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Detailed list for all week