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CXAK57 PAJK 042329 CCA
CLMAJK
CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE JUNEAU, AK
228 PM AKST MON FEB 4 2013
...................................
...THE JUNEAU CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2013...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1944 TO 2013
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 57 01/06/1958
LOW -22 01/12/1972
HIGHEST 43 01/01 43 0 42 01/08
01/07
LOWEST 5 01/29 2 3 2 01/17
01/28
AVG. MAXIMUM 34.7 32.8 1.9 30.8
AVG. MINIMUM 27.9 23.7 4.2 23.0
MEAN 31.3 28.3 3.0 26.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 6 11.7 -5.7 14
DAYS MIN <= 32 23 22.8 0.2 26
DAYS MIN <= 0 0 1.0 -1.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.13 1985
MINIMUM 0.94 1950
TOTALS 7.70 5.35 2.35 6.43
DAILY AVG. 0.25 0.17 0.08 0.21
DAYS >= .01 29 20.6 8.4 24
DAYS >= .10 20 13.0 7.0 18
DAYS >= .50 5 3.1 1.9 3
DAYS >= 1.00 1 0.8 0.2 1
GREATEST
24 HR. TOTAL 1.57 01/16 TO 01/17 1.12 01/07 TO 01/08
SNOWFALL (INCHES)
RECORDS
TOTAL 75.2 2009
24 HR TOTAL 19.6 01/14/1966 TO 01/15/1966
SNOW DEPTH 38 01/20/1966
TOTALS 18.2 27.7 -9.5 49.4
SINCE 7/1 62.0 57.2 4.8 112.9
SNOWDEPTH AVG. 1 7 -6 5
DAYS >= TRACE 19 10.6 8.4 23
DAYS >= 1.0 7 6.9 0.1 12
GREATEST
SNOW DEPTH 6 01/31 20 01/29
01/12 01/30
24 HR TOTAL 4.0 01/29 TO 01/29 6.8 01/25
DEGREE_DAYS
HEATING TOTAL 1036 1139 -103 1172
SINCE 7/1 5254 4860 394 4994
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 0 0 0
FREEZE DATES
RECORD
EARLIEST 08/24/1969
LATEST 06/13/1965
EARLIEST 09/30
LATEST 05/12
.........................................................
WIND (MPH)
AVERAGE WIND SPEED 6.6
RESULTANT WIND SPEED/DIRECTION 5/096
HIGHEST WIND SPEED/DIRECTION 33/120 DATE 01/17
HIGHEST GUST SPEED/DIRECTION 42/120 DATE 01/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.90
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 2
NUMBER OF DAYS CLOUDY 28
AVERAGE RH (PERCENT) 91
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 4
HEAVY RAIN 0 RAIN 8
LIGHT RAIN 20 FREEZING RAIN 0
LT FREEZING RAIN 6 HAIL 0
HEAVY SNOW 0 SNOW 10
LIGHT SNOW 18 SLEET 2
FOG 30 FOG W/VIS <= 1/4 MILE 7
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
...A WARM AND WET START TO 2013...
JUNEAU EXPERIENCED A BIG SHIFT IN THE WEATHER PATTERN FOR JANUARY 2013.
THE FIRST MONTH OF 2013 TURNED OUT TO BE A WARMER AND WETTER MONTH THAN
NORMAL. PERSISTENT ONSHORE FLOW DOMINATED THE WEATHER PATTERN OVER THE
PANHANDLE FOR THE MAJORITY OF JANUARY...KEEPING THE CAPITAL CITY WARM
AND WET.
JANUARY 2013 SAW ABOVE NORMAL TEMPERATURES FOR THE FIRST TIME IN NINE
MONTHS. THE MONTHLY AVERAGE TEMPERATURE WAS AROUND 31.3 DEGREES...WHICH
WAS ABOUT 3 DEGREES ABOVE NORMAL. THIS IS THE 15TH WARMEST JANUARY SINCE
RECORD KEEPING IN 1944. THE MAXIMUM DAILY TEMPERATURE OF 43 DEGREES
OCCURRED ON THE 1ST OF JANUARY...WHILE THE MINIMUM DAILY TEMPERATURE OF
5 DEGREES OCCURRED ON THE 28TH AND 29TH OF JANUARY.
WITH CONSISTENT ONSHORE FLOW INTO THE PANHANDLE...SOUTHEAST ALASKA
EXPERIENCED A WETTER THAN NORMAL JANUARY. THE MONTHLY PRECIPITATION IN
JUNEAU WAS 7.70 INCHES...WHICH WAS ABOUT 2.5 INCHES ABOVE NORMAL.
DESPITE ABOVE NORMAL PRECIPITATION...JUNEAU SAW BELOW NORMAL SNOWFALL
FOR JANUARY. JUNEAU RECEIVED 18.2 INCHES OF SNOWFALL...WHICH IS NEARLY
10 INCHES BELOW THE NORMAL MONTHLY SNOWFALL OF 27.7 INCHES. THE GREATEST
24-HOUR SNOWFALL WAS 4.0 INCHES...WHICH OCCURRED ON THE 29TH OF JANUARY.
THERE WERE 10 DAYS THIS MONTH THAT THERE WAS NO SNOW COVER AT THE
AIRPORT. ON THE OTHER HAND...SNOW COVER PERSISTED IN MENDENHALL VALLEY.
SNOW DEPTH FLUCTUATED BETWEEN 14 TO 23 INCHES AT THE FORECAST OFFICE.
THE HIGHEST WIND GUST AT THE AIRPORT WAS 42 MPH FROM THE SOUTHEAST ON
THE 17TH. THE HIGHEST WIND GUST AT THE DOUGLAS BOAT HARBOR WAS 59 MPH
FROM THE NORTH.
$$
RCL
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