2012 ANNUAL CLIMATOLOGICAL SUMMARY
NAME: 3270 Nowell CITY: West Juneau STATE: Alaska
ELEV: 97 ft LAT: 58° 17' 40" N LONG: 134° 25' 52" W
TEMPERATURE (°F), HEAT BASE 65.0, COOL BASE 65.0
DEP. HEAT COOL
MEAN MEAN FROM DEG DEG MAX MAX MIN MIN
YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=90 <=32 <=32 <=0
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12 1 30.7 23.0 27.1 0.0 1173 0 42.1 7 -2.2 17 0 13 25 2
12 2 39.8 30.2 34.8 0.0 876 0 49.6 9 17.0 26 0 0 18 0
12 3 40.0 28.2 34.0 0.0 959 0 52.2 28 17.2 5 0 1 24 0
12 4 52.2 33.4 42.1 0.0 686 0 61.0 12 24.7 1 0 0 11 0
12 5 49.4 39.9 44.4 0.0 639 0 60.9 24 34.1 15 0 0 0 0
12 6 58.9 46.4 52.1 0.0 400 13 87.0 23 40.8 3 0 0 0 0
12 7 61.6 49.7 55.3 0.0 305 6 76.7 26 39.9 12 0 0 0 0
12 8 60.7 49.4 54.4 0.0 331 2 70.6 15 41.2 30 0 0 0 0
12 9 53.0 46.1 49.4 0.0 469 0 60.1 4 40.2 19 0 0 0 0
12 10 43.8 35.4 39.4 0.0 793 0 57.3 6 19.5 28 0 1 10 0
12 11 34.9 28.3 31.7 0.0 1000 0 45.4 4 18.9 27 0 9 19 0
12 12 28.7 22.1 25.5 0.0 1226 0 38.9 31 11.1 26 0 19 25 0
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46.1 36.0 40.9 0.0 8857 20 87.0 JUN -2.2 JAN 0 43 132 2
LOWEST Wind Chill Temp: -12.3 Nov. 30th @ 0150 (based on 10 minute Average Wind Speed)
PRECIPITATION (in)
DEP. MAX DAYS OF RAIN
FROM OBS. OVER
YR MO TOTAL NORM DAY DATE .01 .1 1
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12 1 7.75 1.73 0.95 7 24 18 0
12 2 4.10 -0.95 0.56 20 19 14 0
12 3 4.05 -1.14 0.82 8 13 9 0
12 4 1.61 -2.51 0.55 29 13 5 0
12 5 5.71 1.32 0.66 12 26 18 0
12 6 6.15 2.60 0.71 26 24 15 0
12 7 4.56 -0.57 0.92 9 16 9 0
12 8 5.73 -0.99 1.00 28 16 14 0
12 9 11.02 -0.63 1.42 12 27 22 1
12 10 3.02 -9.26 0.95 13 12 7 0
12 11 3.58 -4.79 0.64 5 14 11 0
12 12 4.65 -3.65 0.68 10 17 12 0
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61.93 -18.84 1.42 SEP 221 154 1
Highest Rain Rate: 2.91" per hour on Sept. 23rd @ 1615
Snowfall (in)
DEP. MAX
FROM OBS.
YR MO TOTAL NORM DAY DATE
---------------------------------------------
12 1 70.4+? -- 8.4 29
12 2 6.9 -- 2.0 26
12 3 30.4 -- 10.6 6
12 4 TRCE? -- TRCE? 3
12 5 TRCE* -- TRCE* 15
12 6 0.0 -- -- --
12 7 0.0 -- -- --
12 8 0.0 -- -- --
12 9 0.0 -- -- --
12 10 3.3 -- 3.0 30
12 11 10.8 -- 3.5 25
12 12 29.0 -- 6.0 28
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150.8+? 10.6 MAR
Jan. 21: Snowfall of 2.0", plus a Trace to 1/2"? It was very difficult to determine the snowfall
Jan. 20 -21 night because of the constant wind, virtually no area was immune from the wind.
*Snow melted as it fell.
WIND SPEED (mph)
DOM WIND
YR MO AVG. HI DATE DIR RUN (mi)
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12 1 1.4 41.0 20 SSE 1010.89+*
12 2 1.3 40.0 9 SSE 902.64
12 3 1.1 26.0 15 SSE 783.34
12 4 0.8 31.0 2 W 578.11
12 5 0.7 22.0 8 SSE 529.87
12 6 0.6 18.0 21 SSE 441.41
12 7 0.4 18.0 14 SSE 330.51
12 8 0.4 18.0 26 SSE 316.02
12 9 0.7 23.0 27 SSE 503.57
12 10 1.4 37.0 21 SSE 1062.83
12 11 1.7 41.0 22 SSE 1190.70
12 12 1.2 28.0 19 SSE** 887.66+**
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1.0 41.0 JAN SSE 8537.55+
Small Wind Cups in use in 2012
* From 1/24 @ 2120 hrs. to 1348 hrs. on 1/25, the Anemometer was impeded.
** 12/28: Wind Direction Vane and Anemometer Frozen much of the time - though there was little wind anyway.
12/29: Wind Direction Vane and Anemometer Frozen until about 0810 hrs.
