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      Elev 633 ft, 39.821 °N 77.904 °W

      Mercersburg, PA

      Summary

      Temperature (°F)MaxAverageMin
      Max Temperature9378.3862
      Avg Temperature81.4569.8856.42
      Min Temperature7562.8843
      Precipitation (in)MaxAverageMinSum
      Precipitation2.330.2406.25
      Dew Point (°F)MaxAverageMin
      Dew Point71.2560.4342.04
      Wind (mph)MaxAverageMin
      Wind3213.157
      Gust Wind4524.5317
      Sea Level Pressure (in)MaxAverageMin
      Sea Level Pressure29.6229.3529.15

      Daily Observations

      DateTemp High/LowDew Pt High/LowHumidityWindMax WindWind GustPressurePrecip.Condition
      9/1/2026 93 °F / 72 °F 73 °F / 68 °F 72 % 13 mph - 29.27 in 0 in
      9/2/2026 84 °F / 70 °F 71 °F / 67 °F 81 % 32 mph - 29.33 in 1.09 in
      9/3/2026 88 °F / 71 °F 74 °F / 67 °F 86 % 28 mph - 29.27 in 2.58 in
      9/4/2026 84 °F / 69 °F 71 °F / 68 °F 79 % 9 mph - 29.2 in 0 in
      9/5/2026 80 °F / 67 °F 69 °F / 61 °F 74 % 9 mph - 29.16 in 0 in
      9/6/2026 78 °F / 60 °F 61 °F / 54 °F 68 % 13 mph - 29.25 in 0 in
      9/7/2026 77 °F / 58 °F 57 °F / 51 °F 67 % 8 mph - 29.41 in 0 in
      9/8/2026 82 °F / 58 °F 64 °F / 52 °F 67 % 8 mph - 29.49 in 0 in
      9/9/2026 88 °F / 65 °F 67 °F / 61 °F 67 % 17 mph - 29.37 in 0 in
      9/10/2026 84 °F / 75 °F 70 °F / 66 °F 71 % 9 mph - 29.2 in 0 in
      9/11/2026 80 °F / 68 °F 70 °F / 60 °F 78 % 7 mph - 29.26 in 0.02 in
      9/12/2026 77 °F / 67 °F 71 °F / 62 °F 81 % 10 mph - 29.28 in 0 in
      9/13/2026 86 °F / 71 °F 72 °F / 65 °F 83 % 14 mph - 29.19 in 0.06 in
      9/14/2026 75 °F / 59 °F 68 °F / 46 °F 59 % 14 mph - 29.37 in 0 in
      9/15/2026 75 °F / 50 °F 54 °F / 45 °F 61 % 9 mph - 29.57 in 0 in
      9/16/2026 86 °F / 59 °F 66 °F / 53 °F 65 % 12 mph - 29.56 in 0 in
      9/17/2026 84 °F / 68 °F 73 °F / 65 °F 79 % 9 mph - 29.44 in 0 in
      9/18/2026 82 °F / 67 °F 70 °F / 60 °F 74 % 13 mph - 29.36 in 0 in
      9/19/2026 74 °F / 60 °F 63 °F / 54 °F 71 % 10 mph - 29.36 in 0 in
      9/20/2026 80 °F / 69 °F 69 °F / 63 °F 80 % 16 mph - 29.2 in 0.03 in
      9/21/2026 70 °F / 60 °F 68 °F / 57 °F 89 % 12 mph - 29.31 in 0.66 in
      9/22/2026 60 °F / 55 °F 58 °F / 54 °F 93 % 14 mph - 29.46 in 1.77 in
      9/23/2026 63 °F / 54 °F 54 °F / 45 °F 76 % 13 mph - 29.63 in 0.04 in
      9/24/2026 66 °F / 47 °F 47 °F / 41 °F 66 % 12 mph - 29.6 in 0 in
      9/25/2026 71 °F / 43 °F 45 °F / 37 °F 59 % 15 mph - 29.39 in 0 in
      9/26/2026 55 °F / 52 °F 45 °F / 44 °F 70 % 8 mph - 29.26 in 0 in
      Level Access
      Glossary