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Report for 2021
Annual Climatological Summary for 2021
Name: www.boulderwx.com City: Boulder State: Colorado
Elevation: 6660 ft Lat: N 40 03 55 Lon: W 105 19 36
Temperature (°F), Heat Base: 40.0 Cool Base: 80.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 27.0 27.0 0.0 0.0
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21 1 42.7 26.6 34.4 0.0 220 0 58.0 13 8.9 26 30 1 0 0
21 2 35.5 16.8 26.2 0.0 424 0 59.8 2 -12.3 14 21 7 4 4
21 3 46.8 31.2 38.8 0.0 158 0 65.4 9 18.8 15 31 0 0 0
21 4 53.2 34.6 43.6 0.0 136 0 74.6 5 14.3 20 29 1 0 0
21 5 61.2 43.8 52.6 0.0 24 0 80.6 1 30.7 11 31 0 0 0
21 6 78.6 59.6 69.9 0.0 0 22 95.9 17 34.4 27 30 0 0 0
21 7 82.6 65.9 73.7 0.0 0 24 93.8 8 55.9 2 34 0 0 0
21 8 80.6 63.0 71.7 0.0 0 12 90.3 9 50.0 20 30 0 0 0
21 9
21 10
21 11
21 12
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60.1 42.7 51.4 0.0 961 58 95.9 Jun -12.3 Feb 236 9 4 4
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.20 2.0020.00
---------------------------------------------
21 1 0.17 0.0 0.11 9 0 0 0
21 2 0.61 0.0 0.25 17 1 0 0
21 3 1.67 0.0 0.48 13 4 0 0
21 4 2.42 0.0 0.80 27 5 0 0
21 5 3.59 0.0 0.92 3 7 0 0
21 6 2.13 0.0 1.31 25 2 0 0
21 7 1.63 0.0 0.74 31 2 0 0
21 8 0.77 0.0 0.31 19 1 0 0
---------------------------------------------
12.99 0.0 1.31 Jun 22 0 0
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
21 1 4.2 52.0 13 NW
21 2 4.5 46.0 21 NW
21 3 3.8 41.0 21 N
21 4 3.9 34.0 11 ENE
21 5 3.5 40.0 23 E
21 6 4.4 41.0 25 SE
21 7 4.4 53.0 8 SSW
21 8 4.5 39.0 17 WSW
21 9
21 10
21 11
21 12
------------------------------
4.1 53.0 Jul NW