MONTHLY CLIMATOLOGICAL SUMMARY for SEPTEMBER 2009

DATA | STATISTICS | GRAPHS | CONDITIONS

CONDITIONS DAY of Month: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

                     
NAME: 3270 Nowell   CITY: West Juneau   STATE: Alaska 
ELEV:    97 ft  LAT: 58 17' 33" N  LONG: 134 25' 37" W


TEMPERATURE (F), RAIN  (in), WIND SPEED (mph), SNOW (in). Snowfall from 21:00 - 21:00, all others Midnight to Midnight.

                                      HEAT  COOL        AVG                      WIND       SNOW        
    MEAN                              DEG   DEG         WIND                DOM  RUN        ON(1)       
DAY TEMP  HIGH   TIME   LOW    TIME   DAYS  DAYS  RAIN  SPEED HIGH   TIME   DIR  (mi)  SNOW GRND WEATHER
-----------------------------------------------------------------------------------------------------------------------------------------------------
 1  52.4  62.7   3:35p  42.9   3:30a  12.6   0.0  0.00   2.1  16.0  11:45a    W  51.33  0.0  0.0 MCd-BitofFog M/PCd P/MCd PCd Lt-Brz MClr PCd MCd PCd
 2  52.4  62.1   3:25p  42.9   5:50a  12.6   0.0  0.00   1.1  13.0  10:30a   NW  26.52  0.0  0.0 PCld Cld/MCld Fog PCld Clr MClr PCd MCld Ovcst-Cld 
 3  51.7  56.7   5:50p  49.4   6:00a  13.3   0.0  0.09   0.1   9.0   2:35p  SSE   3.53  0.0  0.0 Cld Cld/Spr-VryLtRn-Rn Cd PCd MCd Cd/HntsBrks-SmBrks
 4  51.9  56.9  11:00a  48.2   9:55p  13.1   0.0  0.09   0.2   8.0  11:05p    W   4.48  0.0  0.0 Ovcst-Cd Ovcst/Shr TnyBrks Cd/Spr-RnShrs DecrCds Clr
 5  59.9  71.3   6:00p  46.4   2:50a   7.3   2.2  0.00   2.7  23.0   1:00p    E  65.34  0.0  0.0 IncrCds Cd FogBand Ovcst-Cd Lt-Brz PCd MOvcst Cd PCd
 6  56.4  68.1  12:35a  50.8  11:35p   8.7   0.1  0.02   1.0  23.0  12:45a  SSE  22.89  0.0  0.0 Cd Cd/VryLt:Spr-Rn-Mst Cd Slt-PBrknArea Cd/SmTnyBrks
 7  53.1  55.9   4:25p  51.3  12:05a  11.9   0.0  0.00   0.3   9.0   4:00p    E   6.00  0.0  0.0 Cldy FewSmall-TnyBrksat1650&1750 PrecipPartsofMnlnd
 8  52.5  56.6  10:05a  49.8  11:30p  12.5   0.0  0.03   0.4  10.0   4:35a  SSE   8.67  0.0  0.0 Cld Sm-TnyBrks-FiltBlu Cd/OccSpr-VryLtRn-Drz Cd/LtRn
 9  51.5  53.5  10:40p  49.5   5:15a  13.5   0.0  0.30   0.5  13.0   8:40p  SSE  11.53  0.0  0.0 Cld Cld/OccLtRn Cld/VryLtRn-Spr-Rn-LtRn-LtMist Cld
10  53.4  55.9   5:45p  50.2  12:00p  11.6   0.0  0.53   3.1  22.0   4:10p  SSE  74.51  0.0  0.0 Cld/Shrs Cld/Spr-Rn-VryLtRn-Driz Lt-Brzy-Gusts Cld
11  52.3  56.5   3:15p  44.8  12:00m  12.7   0.0  0.22   2.0  16.0  12:25p  SSE  48.77  0.0  0.0 Cd HvyShr Cd/Drz-Sp-Rn-LtRn VarPCd-MCd/FewSp PCd Clr
12  47.4  51.7  11:05a  43.9   1:05a  17.6   0.0  0.67   0.8  15.0   1:45p   NW  19.23  0.0  0.0 Ovcst-Cd MOvcst PCd Lt-Brz Cd/Spr-Rain Cd/Shrs Cd/Rn
13  49.1  53.6   3:50p  42.9  12:00m  15.9   0.0  0.11   0.6  11.0   6:00a  SSE  15.03  0.0  0.0 Cld/Shrs Cld/VryLtRn-SprWithLulls Cld Brks P/MCd PCd
14  48.1  58.3   2:10p  41.2   2:40a  16.9   0.0  0.00   0.3   9.0   9:15a   NW   6.46  0.0  0.0 DecrCds FogOvhd DecrFog Clr MClr PCd P/MCd PCd Clr
15  49.2  54.7  12:50p  42.3   1:25a  15.8   0.0  0.02   0.5  11.0  12:10p  WSW  12.77  0.0  0.0 PCd MCd Cd-TnyBrks PCd Cd Cd/VryLtRn-Spr Cd Cd/OccSp
16  52.5  56.6  11:40a  50.1  11:30p  12.5   0.0  0.35   0.8  14.0   5:55p  SSE  19.25  0.0  0.0 Cd/FewLtShrs Cd/VryLtRn-Spr-Rn Cd/Shrs Cd-Brks Cd/Rn
17  50.5  53.1   3:10p  48.3   3:05a  14.5   0.0  0.27   1.2  15.0   5:50a  SSE  29.44  0.0  0.0 Cd/Rn-VryLtRn Cd/PeriodsRn-Lt-VryLtRn-Spr-VryLtDrz
18  50.6  54.8   3:30p  47.6   4:35a  14.4   0.0  0.12   0.9  14.0   8:30p  SSE  21.61  0.0  0.0 Cd/Rn-Mst MCd Cd/LtPrecip Brks P/MCd Cd ThnnshCds Cd
19  49.1  51.7   2:45p  47.0   7:40a  15.9   0.0  0.15   1.0  11.0   6:05a  SSE  24.23  0.0  0.0 Cd Cd/LtMst-Drz-Rn-VryLtRn-Spr Cd Cd/Lt:Mst-Sp-Drz-R
20  49.4  50.4   9:50a  48.9  10:35a  15.6   0.0  0.54   2.5  20.0  11:00a  SSE  59.24  0.0  0.0 FewLtShrs Cd/SprShrs-Rn-HvyR-LtR-Spr-Lulls Cd/Rn-LtR
21  49.2  53.1  12:35p  45.5  12:00m  15.8   0.0  0.37   1.2  11.0   8:10a  SSE  28.62  0.0  0.0 Cld/LtRn-Spr Cld SunTried Cd/LtMst-Spr-Rn-LtRn-HvyRn
22  46.7  48.6   1:00p  45.2   1:35a  18.3   0.0  0.57   0.2  10.0  10:55p  WNW   5.32  0.0  0.0 Cld/Rn-Driz-Spr Cld  Cld/Spr-Lt-VryLtRn-Rn-HvyRn Cld
23  49.0  52.5   2:30p  45.8   1:45a  16.0   0.0  0.80   0.4  14.0  10:20a  SSE   9.69  0.0  0.0 Cld Cld/VryLtRn-Rn-LtRn-HvyRn-Spr ShortLullat1505Hrs
24  48.0  49.8   6:25a  46.1   6:05p  17.0   0.0  0.31   2.1  17.0  11:50a  SSE  50.23  0.0  0.0 Cd/R Cd Cd/Sp-R-Drz Cd-FewBrks Cd/Sp-LtR-Drz-R LtWnd
25  48.3  51.1   1:35p  46.4   2:45a  16.7   0.0  0.54   2.2  17.0   6:05p  SSE  53.86  0.0  0.0 Cld/Rn-LtRn-Drz Cd/Spr-LtRn-RnShrs Cd/Rn Cd/Brks Shr
26  45.4  48.8   4:35p  43.5   8:45p  19.6   0.0  0.47   1.0  13.0  10:10a  SSE  23.82  0.0  0.0 Cd/Shrs Cd/Rn-LtR-Drz-Sp-HvyR Cd/Brks-ClrSpots&Areas
27  44.9  48.6   4:45p  40.5  11:20p  20.1   0.0  0.04   0.6   9.0   7:05a  SSE  14.68  0.0  0.0 Cd Cd/LtPrecip Cd Spr ThinningCds/RnShr Rnbow ThnCds
28  43.0  55.1   3:10p  34.9  11:25p  22.0   0.0  0.00   1.7  20.0   4:05p    W  39.52  0.0  0.0 Cld Cld-ThinnerAreasFiltBlu PCld P/MCld PCld Clear
29  41.4  54.4   2:45p  32.4   6:30a  23.6   0.0  0.01   0.8  14.0  10:50a    W  18.09  0.0  0.0 Clr Frost MClr PCld MOvcst Ovcst-Cld-Brks Cld Cld/Rn
30  43.2  44.5  12:15a  42.2   5:00a  21.8   0.0  1.03   1.5  13.0   7:40a  SSE  34.89  0.0  0.0 Cloudy/Rain-HvyRn-VryLtRn-LtRn-LtDriz
-----------------------------------------------------------------------------------------------------------------------------------------------------
    49.8  71.3     5    32.4    29   459.8   2.3  7.65   1.1  23.0     5    SSE 807.55  0.0

(1) As measured on Front Lawn 
STATISTICS | DATA | GRAPHS | CONDITIONS - DAY of MONTH: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | TOP 
AVERAGE Mean Temp:	49.8
AVERAGE High Temp:	54.9
MINIMUM High Temp:	44.5	30th
MAXIMUM High Temp:	71.3	5th
AVERAGE Low Temp:	45.4
MINIMUM Low Temp:	32.4	29th
MAXIMUM Low Temp:	51.3	7th
		
MAX >= 90.0:		0
MAX >= 80.0:		0
MAX >= 70.0:		1	5th
MAX <= 32.0:		0
MIN <= 32.0:		0
MIN <=  0.0:		0
		
MAXIMUM Humidity (%):	97	23rd @ 1027
MINIMUM Humidity (%):	32	28th @ 1600
		
MAXIMUM Pressure (mb):	1029.9	27th @ 0144
MINIMUM Pressure (mb):	994.6	18th @ 2129
		
TOTAL   Htg Deg Days:	459.8
AVERAGE Htg Deg Days:	15.3
MINIMUM Htg Deg Days:	7.3	5th
MAXIMUM Htg Deg Days:	23.6	29th
TOTAL Cool Deg Days:	2.3
Heat Base:  65.0  Cool Base:  65.0  Method: Integration
		
TOTAL   Precip.:	7.65
AVERAGE Precip. A:	0.32	(Per day, for the 24 days with measurable precip.)
AVERAGE Precip. B:	0.26	(Per day)
DAYS of Precip.:	24	All but: 1st, 2nd, 5th, 7th, 14th, 28th
MAXIMUM Precip.:	1.03	30th
MAXIMUM Rain Rate:	0.55	12th @ 2239
Days of Rain: 23 (>.01 in) 17 (>.1 in) 1 (>1 in)
TOTAL Snowfall:		0.0
DAYS of Snowfall:	0
		
AVERAGE High Wind:	14.0
MINIMUM High Wind:	8	4th
MAXIMUM High Wind:	23	5th, 6th
WIND RUN (miles):	809.55
		

DAYS Full Sun any time:	14	1st, 2nd, 3rd, 5th, 11th, 13th, 14th, 15th, 16th, 18th, 24th, 27th, 28th, 29th

DAYS Full Sun any
time - Mainland Only:	3	4th, 6th, 26th

DAYS OF Extrm Wk To 
Somewhat Weakened Sun:	2	7th (Mt. Roberts only), 8th

DAYS Sun Tried Briefly:	1	21st

DAYS With Cld or M Cld:	30	All days
DAYS OF Rainbow:	1	27th: Full Faint Rainbow to ENE at 1718 becoming partal by 1730. Faded out by 1736.
DAYS OF Aurora:		0
DAYS OF Lightning:	0
DAYS OF Earthquake:	0



GRAPHS | DATA | STATISTICS | CONDITIONS - DAY of Month: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | TOP

September 2009 - Barometric Pressure & Temperature with Highs & Lows.

September 2009 - Dewpoint & Humidity.

September 2009 - Rainfall & High Rain Rate with Pressure & Humidity.

September 2009 - High Wind, Wind Run, & 10 min. Avg. Wind Speed.



CONDITIONS - DAY of Month: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | DATA | STATISTICS | GRAPHS | TOP

Wed. 9/30/09: DATA | 0042: Tsunami Advisory is Canceled for the Coastal areas of California and Oregon from the California-Mexico border to the Oregon-Washington border - No Tsunami Warning... No Watch and No Advisory is in Effect for the U.S. West Coast States - Alaska and British Columbia- See 0042 Below

Tue. 9/29/09: DATA | A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA AND OREGON FROM THE CALIFORNIA-MEXICO BORDER TO THE OREGON-WASHINGTON BORDER... ...

THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF WASHINGTON - BRITISH COLUMBIA AND ALASKA FROM THE OREGON-WASHINGTON BORDER TO ATTU ALASKA - See 1841 Below | The NWS at 10:08 PM 9/28 Issued a Freeze Warning which was in effect until 9 AM Today - See 0425 Below

Mon. 9/28/09: DATA | 1612: NWS: Frost Advisory Remains in Effect from Midnight Tonight to 9 AM ADT Tuesday - See 0453 Below

SUNDAY 9/27/09: DATA | NWS: First Frost of the Season in many locations in the central Panhandle Monday night into Tuesday morning - See 0430 Below | Last Cruise Ship of the 2009 Season in Port Today - Holland America Line's Zaandam

Sat. 9/26/09: DATA | 1458: A Dusting of Snow is visible at the very top of Mt. Roberts; snow visible along the high points of the Mt. Juneau Ridge and the peak of Mt. Juneau when clouds cleared from those areas

Fri. 9/25/09: DATA | A Wind Advisory was in Effect until 6 AM Today

Thur. 9/24/09: DATA | 1733: NWS: Wind Advisory in Effect until 6 AM ADT Friday - See 1733 Below

Wed. 9/23/09: DATA

Tue. 9/22/09: DATA | First Day of Autumn - Autumnal Equinox occurred at 1:18 PM Today

Mon. 9/21/09: DATA | First Day of Autumn is Tomorrow - The Autumnal Equinox occurs at 1:18 PM Sept. 22 | 1248 & 1715: A White-Crowned Sparrow is in the backyard

SUNDAY 9/20/09: DATA

Sat. 9/19/09: DATA

Fri. 9/18/09: DATA | POW/MIA Recognition Day

Thur. 9/17/09: DATA

Wed. 9/16/09: DATA | Black Bear in the backyard... See 1957 Below | NWS at 1525: An area of heavy showers and isolated thunderstorms will be moving in from the south and affect the area through 5 PM. Dangerous cloud to ground lightning...brief heavy rainfall...and gusty winds up to 40 mph will be possible

Tue. 9/15/09: DATA

Mon. 9/14/09: DATA

SUNDAY 9/13/09: DATA

Sat. 9/12/09: DATA

Fri. 9/11/09: DATA

Thur. 9/10/09: DATA | 2100: NWS: A Wind Advisory was in Effect Until 9 PM Today

Wed. 9/09/09: DATA | NWS: Wind Advisory Remains in Effect for Tomorrow Thursday 9/10, from Noon to 9 PM ADT - See 1538 Below

Tue. 9/08/09: DATA

Mon. 9/07/09: DATA | Labor Day - Federal, State, and Local Holiday

SUNDAY 9/06/09: DATA

Sat. 9/05/09: DATA | Wind Advisory in Effect until 3 AM Sunday 9/06 - East wind 10 to 20 mph except 15 to 25 mph with frequent gusts over 40 mph near downtown Juneau and south Douglas

Fri. 9/04/09: DATA

Thur. 9/03/09: DATA | NWS Summary of August 2009 Weather - See Below

Wed. 9/02/09: DATA

Tue. 9/01/09: DATA | Dense Fog Advisory that had been in Effect from Midnight to 9 AM ADT Tuesday, September 1 was Cancelled by the NWS at 0734. See 2326 8/31/2009.