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Report for 2020
 Annual Climatological Summary for 2020
Name: Little Rocky Run City: Clifton State: Virginia
Elevation: 330 ft Lat: N 38° 49' 06" Lon: W 077° 25' 12"
Temperature (°F), Heat Base: 65.0 Cool Base: 65.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 90.0 50.0 32.0 10.0
------------------------------------------------------------------------------------
20 1 48.0 31.1 39.9 8.9 781 2 71.2 11 17.4 22 0 18 19 0
20 2 51.6 32.6 41.9 7.9 669 0 67.6 4 16.2 15 0 11 16 0
20 3 61.7 41.3 51.0 7.0 446 15 79.2 20 23.5 1 0 3 4 0
20 4 63.8 43.0 53.0 -1.0 375 14 79.7 13 30.3 17 0 0 2 0
20 5 71.8 52.4 61.7 -0.3 188 87 87.0 15 32.0 10 0 0 1 0
20 6 84.7 64.2 73.7 2.7 18 280 94.1 3 46.9 1 4 0 0 0
20 7 92.6 70.9 80.3 4.3 0 474 100.8 20 63.7 15 27 0 0 0
20 8 86.3 68.8 76.1 2.1 1 344 92.6 10 61.3 17 8 0 0 0
20 9 77.0 58.0 66.8 -0.2 94 147 91.0 3 40.2 22 1 0 0 0
20 10 69.5 49.6 58.6 3.6 235 38 81.7 22 33.7 31 0 0 0 0
20 11 63.5 41.4 51.9 6.9 411 17 77.9 10 26.1 19 0 2 3 0
20 12 47.7 31.7 39.0 4.0 806 0 64.8 12 20.4 26 0 21 16 0
------------------------------------------------------------------------------------
68.2 48.7 57.8 3.8 4028 1423 100.8 Jul 16.2 Feb 40 55 61 0
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.25 1.00 3.00
---------------------------------------------
20 1 2.81 0.11 1.22 25 5 1 0
20 2 2.93 0.13 0.59 6 5 0 0
20 3 1.91 -1.39 0.43 28 2 0 0
20 4 4.57 1.47 1.54 13 6 1 0
20 5 2.21 -1.79 0.63 3 3 0 0
20 6 4.73 0.83 1.34 19 5 2 0
20 7 3.95 0.45 2.33 22 4 1 0
20 8 7.11 3.21 1.43 12 8 3 0
20 9 1.98 -1.42 0.32 29 4 0 0
20 10 3.54 0.24 1.54 29 5 1 0
20 11 3.60 0.30 1.40 11 4 2 0
20 12 4.65 1.35 1.43 24 6 2 0
---------------------------------------------
43.99 3.49 2.33 Jul 57 13 0
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
20 1 1.5 24.0 5 NW
20 2 1.5 21.0 2 WSW
20 3 1.6 28.0 7 SSE
20 4 1.6 29.0 9 NNW
20 5 1.4 25.0 19 ENE
20 6 1.0 15.0 4 E
20 7 0.8 17.0 16 E
20 8 0.7 20.0 25 ESE
20 9 0.8 16.0 29 NE
20 10 1.0 17.0 16 NE
20 11 1.2 25.0 17 ENE
20 12 1.4 21.0 22 WNW
------------------------------
1.2 29.0 Apr NE