MONTHLY CLIMATOLOGICAL SUMMARY for SEPTEMBER 2010

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  53.5  55.3  10:50a  50.1  11:50p  11.5   0.0  0.28   0.7  14.0   3:15p  SSE  16.72  0.0  0.0 Cd Cd/VryLtRn-SprShrs Cd Cd/FewRn-DrzShrs-Sp Cd Cd/R
 2  50.9  55.6   5:15p  48.5   6:45a  14.1   0.0  0.69   0.7  11.0   2:00p  WNW  15.80  0.0  0.0 Cd/SpToRn LoCds/Sp-LtR-R-LtMst LoCd-FewBrk LoCd/Sp-R 
 3  53.1  58.4   3:20p  50.1   5:45a  11.9   0.0  0.09   0.8  11.0  10:40a  WNW  18.70  0.0  0.0 LoCd/LtRn-RnShrs Cd-FewBrks PCd-Cd Cd-Brks Cd/Spr Cd
 4  52.7  56.9   2:30p  50.1   5:45a  12.3   0.0  0.01   0.0   6.0   1:30p  ENE   0.64  0.0  0.0 Cld-OccBrks/LtPrecip Cld-FewBrks Cld Cld-OccBrks Cld
 5  50.2  51.1   6:25a  49.4  11:50p  14.8   0.0  0.74   0.6  10.0   7:45a  SSE  14.10  0.0  0.0 Cld Cld/Spr-Lt-VryLtRn-Rn-VryLtDrizToDriz-OneLull
 6  54.2  66.6   2:50p  47.4   5:40a  10.8   0.0 TRACE   1.1  14.0  12:10p    W  25.59  0.0  0.0 Cd/Sp Cd-FewBrks Brks MCd PCd MClr/Clr PCd IncrCd Cd
 7  54.8  69.4   3:00p  44.9   6:20a  10.4   0.2  0.00   0.3  10.0   1:55p  WSW   5.91  0.0  0.0 Clear PCld/MClr MCld-ThnshCds Cld-Brks VarP/MCld Cld
 8  53.7  57.3   4:05p  51.3   6:15a  11.3   0.0  0.04   0.0   7.0   2:15p  ENE   0.88  0.0  0.0 Cd Cd-FewSltBrk Cd/SpShr-Sp Cd/FewSm-TnyBrk Cd Cd/Rn
 9  51.9  53.2   3:40a  50.4   9:30p  13.1   0.0  0.65   0.9  13.0   5:10a  SSE  21.90  0.0  0.0 Cd/VryLtRn-Rn PeriodsRn-Sp Cd/VryLtRToHvyR-2Lulls Cd
10  51.9  58.6   2:45p  48.2   5:35a  13.1   0.0  0.01   0.1   6.0  10:10a    E   1.60  0.0  0.0 Cd Cd/VrySltToPartlyBrkn Cd Cd/VarBrks MCd Brks Cd
11  52.6  61.3   4:00p  47.3   3:20a  12.4   0.0  0.00   1.5  16.0   1:50p   NW  36.80  0.0  0.0 Cd Sm-TnyBrk M/PCd Thn-ThnshCds PCd Lt-Brz M/PCd PCd
12  56.2  68.4   2:25p  47.0   3:00a   9.3   0.6  0.00   2.3  20.0  11:20a    W  54.05  0.0  0.0 Clr-FewClds Clr/MClr Clr-FewClds LtToBrzyWindatTimes
13  53.2  68.9   3:30p  42.9   6:05a  12.1   0.4  0.00   1.1  11.0  11:40a    W  25.58  0.0  0.0 Clear-FewCldsOcc MClr PCd/MClr Clr/MClr Clr
14  52.7  72.5   3:20p  41.3   6:15a  13.0   0.6  0.00   0.7   9.0  10:00a  WSW  15.60  0.0  0.0 Clr PCd MCd Cd-SomeBrks PCd MClr Clr MClr
15  54.6  74.9   3:50p  42.5   6:00a  11.8   1.4  0.00   1.0  11.0   7:25p  WSW  24.19  0.0  0.0 Clear   Light Wind a few times and a Breezy Period
16  53.4  71.6   3:30p  42.2   6:40a  12.2   0.6  0.00   0.2   8.0   5:20p  WSW   4.13  0.0  0.0 Clr Clr-FewVryThnCds Clr Clr/MClr Clr-BitofVryThnCds
17  51.1  63.5   2:20p  42.2   6:30a  13.9   0.0  0.00   0.0   6.0   9:45p    W   0.64  0.0  0.0 Clr-MClr P/MCd PCd VryThnToThnshCds Ovcst-Cd PCd Clr
18  56.1  70.9   2:05p  43.5   3:55a   9.9   0.9  0.00   1.6  24.0  10:00p    W  38.31  0.0  0.0 Clr Clr-AFewClds-SomeClds Clr Lt-Brzy-FewGusts
19  56.7  61.0   3:45p  47.9   6:20a   8.3   0.0  0.00   4.4  28.0  10:35a    E 105.27  0.0  0.0 Clear LtWindToBrzy-Windy
20  51.2  60.5   1:05p  38.5  12:00m  13.8   0.0  0.00   1.1  18.0   1:15a  WSW  25.57  0.0  0.0 Clr OccLtWnd Clr/MClr PCd MClr PCd/MClr MClr Clr
21  44.4  57.8   3:25p  35.0   7:10a  20.6   0.0  0.00   0.2   7.0  12:05p  WSW   4.97  0.0  0.0 Clr MClr PCd MClr Clr-FewCds IncrClds Cd-Brkn
22  46.3  58.6   2:50p  36.9   7:20a  18.7   0.0  0.00   0.3  10.0   1:15p  ENE   6.15  0.0  0.0 DecrCd MClr P/MCd MCd VarP/MCd-PCd PCd MCd/Cd Cd
23  47.4  53.1   2:35p  42.9   1:55a  17.6   0.0  0.15   0.0   7.0   3:10a  WSW   0.57  0.0  0.0 Cd Cd/PeriodsExtrmLtSprToVryLtRn Cd/VryLtMst-SprToRn
24  48.3  51.4  10:35a  45.8   3:40a  16.7   0.0  0.67   2.2  28.0  10:45a  SSE  52.22  0.0  0.0 Cd/RnShrs Cd/VryLtRn-Spr-RnShrs PartRnbw Lt-Brz-Gsts
25  50.0  51.9   4:00p  47.7   5:10a  15.0   0.0  0.78   1.7  17.0   4:00p  SSE  41.27  0.0  0.0 Cd/Rn-Shrs Cd/LtSprToRn-FewLulls Cd Cd/VryLtMst-Sp-R
26  51.0  54.8  12:20p  48.0  12:00m  14.0   0.0  0.09   1.5  16.0   4:50a  SSE  36.46  0.0  0.0 Cd Cd/LtMst-Rn FewBrk PCd OccBrk MCd Cd Cd/LtMstToRn
27  47.6  48.8   2:00p  46.2  12:00m  17.4   0.0  0.38   0.3  13.0  11:00p  WSW   7.34  0.0  0.0 Cd Cd/VryLtRn-Sp-Rn Cd-OccLoCds/VryLtRn-Sp-R-Drz-Mst
28  47.0  49.8  12:05p  44.8   3:15a  18.0   0.0  0.80   1.9  16.0   9:25p  SSE  44.50  0.0  0.0 Cd/R-VryLtR Cd-Brks-ThnAreas Cd/Sp-Rn-HvyRn-FewLulls
29  49.5  52.0   4:45p  47.6   8:30p  15.5   0.0  0.20   1.1  14.0   5:50a  SSE  25.36  0.0  0.0 Cd/Shrs Cd/PeriodsSp-Mst-VryLtR-Drz VarM/PCd Cd-Brks
30  48.5  52.8   2:25p  44.2  11:10p  16.5   0.0  0.02   0.1   8.0   3:10a  SSE   3.07  0.0  0.0 Cd/OccBrk Cd Cd/LtMst-Drz Cd-OccTnyBrks MCd Brks PCd
-----------------------------------------------------------------------------------------------------------------------------------------------------
    51.5  74.9    15    35.0    21   410.0   4.7  5.60   0.9  28.0    19    SSE 673.89  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 

Record number of consecutive dry days for September since records began at the Juneau Airport in 1943.
Location             New Record     Old Record        Year Set
Juneau Airport         12 days        10 days           1973


AVERAGE Mean Temp:	51.5
AVERAGE High Temp:	59.6
MINIMUM High Temp:	48.8	27th
MAXIMUM High Temp:	74.9	15th
AVERAGE Low Temp:	45.5
MINIMUM Low Temp:	35.0	21st
MAXIMUM Low Temp:	51.3	8th
		
MAX >= 90.0:		0
MAX >= 80.0:		0
MAX >= 70.0:		4	14th, 15th, 16th, 18th
MAX <= 32.0:		0
MIN <= 32.0:		0
MIN <=  0.0:		0
		
MAXIMUM Humidity (%):	95	10th, 28th
MINIMUM Humidity (%):	21	15th @ 1358
		
MAXIMUM Pressure (mb):	1023.1	13th @ 0729
MINIMUM Pressure (mb):	982.5	24th @ 1159
		
TOTAL   Htg Deg Days:	410.0
AVERAGE Htg Deg Days:	13.7
MINIMUM Htg Deg Days:	8.3	19th
MAXIMUM Htg Deg Days:	20.6	21st
TOTAL Cool Deg Days:	4.7
Heat Base:  65.0  Cool Base:  65.0  Method: Integration
		
TOTAL   Precip.:	5.60
AVERAGE Precip.:	0.33
DAYS of Precip.:	17	All but: 7th, 11th, 12th, 13th, 14th, 15th, 16th, 17th, 18th, 19th, 20th, 21st, 22nd
MAXIMUM Precip.:	0.80	28th
MAXIMUM Rain Rate:	1.53	28th @ 1422
Days of Rain: 14 (>.01 in) 10 (>.1 in) 0 (>1 in)
TOTAL Snowfall:		0.0
DAYS of Snowfall:	0
		
AVERAGE High Wind:	13.0
MINIMUM High Wind:	6	4th, 10th,17th
MAXIMUM High Wind:	28	19th, 24th
WIND RUN (miles):	673.89
		
DAYS Sun at any time:			20	All but: 1st, 2nd, 5th, 9th, 23rd, 24th, 25th, 27th, 29th, 30th
DAYS Weak-Weakened SUN Mainland Only:	2	2nd, 29th	
DAYS OF Totally Clear			2	15th, 19th 
DAYS OF Cld or M Cld:	23	All but: 12th, 13th, 15th, 16th, 18th, 19th, 20th
DAYS OF Rainbow:	1	24th: Faint Partial with the top of the arc high in the sky to the NE at 1650.
DAYS OF Aurora:		2	14th: Faint Streak to NNE at 2044.
				17th: Some Aurora Sept. 17th part of Sept.16-17 night.
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 2010 - Barometric Pressure & Temperature with Highs & Lows.

September 2010 - Dewpoint & Humidity.

September 2010 - Rainfall & High Rain Rate with Pressure & Humidity.

September 2010 - 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

Thur. 9/30/10: DATA

Wed. 9/29/10: DATA | The Wind Advisory was Cancelled by the NWS at 11:03 PM 9/28

Tue. 9/28/10: DATA | 1913: NWS: Wind Advisory in effect until Midnight ADT Tonight - See 1913 Below | Last Cruise Ships of the 2010 Season in Port Today

Mon. 9/27/10: DATA

SUNDAY 9/26/10: DATA | Fallen Firefighter Memorial - 1 PM at Centennial Hall

Sat. 9/25/10: DATA

Fri. 9/24/10: DATA

Thur. 9/23/10: DATA | NWS: Record Number of Consecutive Dry Days for September - See 0655 Below

Wed. 9/22/10: DATA | Fall Begins - Autumnal Equinox at 7:09 PM ADT | NWS: Strong Storm to affect the area late this week and weekend - See 1516 Below | NWS Record for Consecutive Dry Days in September has been set - See 0730 Below

Tue. 9/21/10: DATA

Mon. 9/20/10: DATA

SUNDAY 9/19/10: DATA | 1249: The NWS Wind Advisory will expire at 1 PM ADT this afternoon - See 1249 Below | Record Temperature set at the Juneau International Airport yesterday Sept. 18th - See 2251 9/18 Below

Sat. 9/18/10: DATA | Record Temperature set at the Juneau International Airport today Sept. 18th - See 2251 Below | 1530: NWS: Wind Advisory Remains in Effect from 10 PM this evening to 10 AM ADT Sunday - See 1530 Below | NWS: A Few Record High Temperatures set yesterday, Friday 9/17 - See 2200 9/17 Below

Fri. 9/17/10: DATA | Constitution Day | POW/MIA Recognition Day | NWS: A Few Record High Temperatures set today Friday 9/17 - See 2200 Below | NWS: Turning Windy and Cooler Sunday - See 0615 Below | NWS: Another Day of Record High Temperatures on Thursday 9/16 - See 2300 9/16 Below

Thur. 9/16/10: DATA | NWS: Another Day of Record High Temperatures on Thursday 9/16 - See 2300 Below | NWS: Turning Windy and Cooler Sunday - See 1530 Below | NWS: Several Record High Temperatures set Wednesday 9/15 - See 2245 9/15 Below

Wed. 9/15/10: DATA | NWS: Several Record High Temperatures set Wednesday 9/15 - See 2245 Below

Tue. 9/14/10: DATA | 1831: NWS Nowcast: Frost possible tonight in the Mendenhall Valley... See 1831 Below | 2044: Faint streak of Aurora Borealis to the NNE.

Mon. 9/13/10: DATA

SUNDAY 9/12/10: DATA

Sat. 9/11/10: DATA | 0702: A Red-Breasted Sapsucker is in the willow by the deck | 0741: A Sharp-Shinned Hawk is in the backyard

Fri. 9/10/10: DATA | NWS: Dry and unseasonably warm weather - warm days and cool nights expected next week - See 0429 Below and 0957 Below

Thur. 9/09/10: DATA

Wed. 9/08/10: DATA

Tue. 9/07/10: DATA

Mon. 9/06/10: DATA | Labor Day - Federal, State, and Local Holiday

SUNDAY 9/05/10: DATA

Sat. 9/04/10: DATA

Fri. 9/03/10: DATA | NWS: Record Rainfall at the Juneau Airport on September 2nd - See 0400 Below | The NWS Summary of August 2010 Weather - See Below

Thur. 9/02/10: DATA | NWS: Record Rainfall at the Juneau Airport today, September 2nd - See 0400 9/03 Above

Wed. 9/01/10: DATA