STATION: ANNETTE ISLAND AIRPORT (PANT), AK
CLIMATOLOGICAL SUMMARY. Period of Record: Jul 1996 to Dec 2008
Summaries based on unedited daily ASOS data. Errors may be present.
-----------------------------------------------------------------------------------------------
TEMPERATURE (F) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Avg Max Temp | 41.0 42.8 43.9 49.8 55.9 61.3 63.2 64.2 58.1 51.5 45.0 41.6 | 51.5
Avg Min Temp | 32.1 33.1 33.6 38.0 43.8 49.6 52.7 53.1 48.1 42.1 35.6 32.8 | 41.2
Avg Temperature | 36.5 37.9 38.8 43.9 49.8 55.4 57.9 58.7 53.1 46.8 40.3 37.2 | 46.4
| |
Extremes: | |
Extreme Max Temp| 59 57 61 76 84 93 79 83 75 68 61 56 | 93
| |
Date of Ext-Day | 30 13 21 23 27 19 25 10 12 02 29 20 |
-Year| 2000 2004 1998 2005 1998 2004 1996 2005 2007 2008 2002 2005 |
| |
Extreme Min Temp| 4 9 11 28 32 40 43 43 33 26 10 7 | 4
| |
Date of Ext-Day | 12 03 08 03 03 02 10 31 30 30 28 01 |
-Year| 2005 2004 2003 2002 1999 2001 2008 1999 1996 2006 2006 2001 |
| |
Heating Degree Days | 882 765 813 634 470 294 221 201 356 563 741 862 | 6803
Cooling Degree Days | 0 0 0 0 0 6 2 5 0 0 0 0 | 14
| |
Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
Max Temp >= 75 | 0.0 0.0 0.0 0.1 0.5 1.8 1.2 1.8 0.1 0.0 0.0 0.0 | 5.5
Max Temp <= 32 | 4.5 0.5 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 2.9 | 10.6
| |
Min Temp <= 32 | 14.5 12.7 12.6 3.3 0.2 0.0 0.0 0.0 0.0 1.5 9.1 13.8 | 67.6
Min Temp <= 20 | 4.3 1.3 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.4 | 9.9
Min Temp <= 0 | 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.0
| |
Avg Dew Point Temp | 31.7 32.5 31.6 36.2 41.8 48.2 52.6 53.4 49.1 41.6 35.2 32.0 | 40.5
Avg Wet Bulb Temp | 35.0 35.9 36.2 40.7 46.0 51.5 54.9 55.6 51.0 44.0 38.5 35.7 | 43.8
| |
------------------------------------------------------------------------------------------------------
| |
Avg Sea Level Pres | 30.17 30.19 30.12 30.04 30.05 30.05 30.06 30.03 30.05 30.11 30.12 30.22 | 30.10
(Inches of Mercury) | |
------------------------------------------------------------------------------------------------------
| |
WEATHER | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
See disclaimer below| |
| |
Avg Number of Days: | |
Thunderstorms | 0.0 0.0 0.1 0.1 0.0 0.1 0.0 0.2 0.1 0.0 0.2 0.1 | 0.7
Heavy Fog | 2.0 1.3 0.7 0.9 1.2 0.3 1.5 1.4 1.7 1.8 0.5 0.6 | 13.6
Fog | 21.0 15.5 19.1 15.8 14.5 14.1 13.5 13.8 18.6 18.2 17.3 19.5 | 200.8
Hail | 0.2 0.1 0.4 0.7 0.1 0.1 0.0 0.0 0.0 0.2 0.4 0.2 | 2.3
| |
------------------------------------------------------------------------------------------------------
| |
PRECIPITATION (In) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Average Monthly | 10.41 7.39 7.96 7.28 6.14 4.87 5.27 8.68 10.14 13.52 11.22 10.90 | 103.78
| |
Maximum Daily | 2.65 2.40 2.56 3.06 2.59 2.35 1.91 3.28 2.57 5.48 2.95 4.01 | 5.48
| |
Date of Ext-Day | 30 11 26 07 14 27 24 21 21 25 18 12 |
-Year| 2005 2005 2000 2006 2008 2008 2000 2000 2001 2003 2006 1997 |
| |
Avg Number of Days: | |
>= 0.01 | 23.4 18.5 23.0 18.4 16.3 16.9 17.8 16.9 20.9 23.8 22.2 23.5 | 241.6
>= 0.10 | 17.5 12.5 16.6 12.7 11.8 10.6 10.2 12.4 14.9 18.5 17.3 17.8 | 173.0
>= 0.25 | 12.8 9.0 11.0 8.5 7.1 6.4 6.5 9.1 11.7 14.0 14.1 13.5 | 123.9
>= 0.50 | 7.7 5.3 5.2 5.4 3.7 3.1 3.9 6.0 7.5 9.6 7.9 7.5 | 72.8
>= 1.00 | 2.6 1.8 1.5 1.9 1.8 0.8 1.1 3.2 3.2 4.4 2.9 2.8 | 28.0
| |
------------------------------------------------------------------------------------------------------
| |
WIND (MPH) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Daily Avg Wind Speed| 8.8 8.0 8.6 7.7 7.0 6.5 5.8 6.0 6.6 8.0 8.3 9.3 | 7.6
Daily Avg Max 2-Min | 19.2 17.6 19.0 16.7 15.1 13.8 12.7 13.4 15.0 18.3 18.9 20.6 | 16.7
Daily Avg Peak Gust | 26.4 24.0 26.0 22.3 19.9 18.4 17.0 18.0 20.4 25.4 26.1 28.5 | 22.7
| |
Maximum Daily Avg | 25.5 23.0 24.2 24.9 18.9 19.0 17.2 17.6 21.9 22.9 24.0 25.5 | 25.5
| |
Maximum 2-Minute Avg| 40 46 41 37 35 29 32 32 38 48 44 44 | 48
| |
Date of Max 2min-Day| 13 05 06 07 02 24 15 26 06 27 23 22 |
-Year| 1999 1999 2004 2004 2001 2002 1998 2001 2003 1998 2008 2003 |
| |
Maximum Peak Gust | 61 62 56 55 49 43 46 44 49 69 69 63 | 69
| |
Date of Max Gust-Day| 15 05 28 07 02 24 08 27 22 19 19 23 |
-Year| 2007 1999 2007 2004 2001 2002 2006 2001 1999 2008 2006 2007 |
| |
Avg Number of Days: | |
Peak Gust >=30 | 11.6 8.6 9.4 7.0 3.4 1.8 1.4 2.9 5.2 9.7 10.9 13.3 | 85.3
Peak Gust >=40 | 3.6 2.1 3.4 2.2 0.6 0.1 0.2 0.5 0.9 4.2 3.2 5.9 | 26.9
Peak Gust >=50 | 0.8 0.4 1.0 0.3 0.0 0.0 0.0 0.0 0.0 0.9 0.9 2.2 | 6.5
| |
Max 2-Minute >=30| 3.4 2.3 3.2 1.8 0.5 0.0 0.1 0.5 0.7 3.4 2.9 0.0 | 18.9
Max 2-Minute >=40| 0.3 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.3 0.0 | 1.1
| |
------------------------------------------------------------------------------------------------------
Observations of WEATHER may me innacurate due to early ASOS inconsistancies. Average days
with Thunderstorms may be low due to early mis-detection.
Heavy Fog = Visibility less than or equal to 1/4 mile.
Fog = Visibility greater than 1/4 mile or less than 7 miles.
Peak Gust = Maximum 5-second average.
Snowfall data not observed at ASOS stations.
Copyright ©2009 Western Regional Climate Center - Desert Research Institute - Reno, Nevada.