STATION: MC GRATH AIRPORT (PAMC), AK
CLIMATOLOGICAL SUMMARY. Period of Record: Jul 1996 to Dec 2008
Summaries based on unedited daily ASOS data. Errors may be present.
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TEMPERATURE (F) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
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Avg Max Temp | 1.3 15.4 23.6 41.6 57.9 69.2 69.5 64.2 54.3 32.7 14.5 4.9 | 37.4
Avg Min Temp | -16.6 -6.6 -2.6 20.1 36.5 47.4 50.9 46.1 36.8 18.9 -0.2 -12.4 | 18.2
Avg Temperature | -7.7 4.4 10.5 30.9 47.2 58.3 60.2 55.2 45.5 25.8 7.2 -3.7 | 27.8
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Extremes: | |
Extreme Max Temp| 45 49 55 66 82 87 86 87 74 66 49 45 | 87
| |
Date of Ext-Day | 30 01 20 30 25 30 04 18 04 09 09 03 |
-Year| 2007 2007 1998 2004 2002 1998 1997 2004 1996 2006 1997 2002 |
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Extreme Min Temp| -57 -61 -41 -28 -2 27 31 29 16 -20 -39 -59 | -61
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Date of Ext-Day | 05 01 30 01 03 04 17 28 22 31 27 31 |
-Year| 1997 1999 2004 2004 2001 2006 2003 1996 2003 1997 2005 1999 |
| |
Heating Degree Days | 2253 1713 1689 1024 551 209 159 310 584 1215 1734 2130 | 13572
Cooling Degree Days | 0 0 0 0 0 8 10 5 0 0 0 0 | 23
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Avg Number of Days: | |
Max Temp >= 90 | 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
Max Temp >= 75 | 0.0 0.0 0.0 0.0 1.3 7.9 8.8 3.2 0.0 0.0 0.0 0.0 | 21.2
Max Temp <= 32 | 28.5 25.1 23.3 5.4 0.2 0.0 0.0 0.0 0.0 15.1 26.2 30.0 | 153.8
| |
Min Temp <= 32 | 30.9 28.1 30.7 26.8 9.5 0.3 0.1 0.6 9.6 27.5 29.5 31.0 | 224.4
Min Temp <= 20 | 29.8 26.7 28.7 11.5 0.6 0.0 0.0 0.0 0.3 14.2 26.2 30.3 | 168.3
Min Temp <= 0 | 23.9 16.6 17.6 3.4 0.1 0.0 0.0 0.0 0.0 3.5 16.4 23.0 | 104.4
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Avg Dew Point Temp | -1.2 5.0 2.0 19.5 32.9 44.9 50.1 47.5 38.1 22.8 3.8 -1.9 | 22.0
Avg Wet Bulb Temp | -0.3 7.3 9.4 27.1 41.2 51.6 54.5 51.1 42.0 25.8 7.0 0.3 | 26.4
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Avg Sea Level Pres | 30.21 30.12 30.18 30.10 30.00 29.96 29.90 29.99 30.00 30.04 30.07 30.15 | 30.06
(Inches of Mercury) | |
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WEATHER | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
See disclaimer below| |
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Avg Number of Days: | |
Thunderstorms | 0.0 0.0 0.0 0.0 0.4 2.1 2.3 0.3 0.2 0.0 0.0 0.0 | 5.4
Heavy Fog | 1.7 2.0 0.5 0.8 0.1 0.5 0.7 2.3 0.9 1.3 1.6 1.7 | 14.0
Fog | 14.5 12.3 6.6 7.8 6.5 6.7 9.9 13.2 11.4 13.3 13.0 15.5 | 130.9
Hail | 0.3 0.1 0.1 0.2 0.3 0.1 0.0 0.0 0.1 0.1 0.0 0.0 | 1.1
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PRECIPITATION (In) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
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Average Monthly | 0.84 0.77 0.48 0.85 1.03 1.53 2.50 2.93 2.37 1.18 1.08 0.89 | 16.47
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Maximum Daily | 1.08 0.63 0.73 0.49 0.74 0.67 1.40 1.28 1.82 0.79 0.70 1.00 | 1.82
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Date of Ext-Day | 03 08 30 27 18 24 06 25 21 07 10 22 |
-Year| 2005 2003 2008 2004 2005 2004 1998 1996 2000 2006 2000 2004 |
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Avg Number of Days: | |
>= 0.01 | 8.8 8.6 7.4 7.4 8.9 11.7 15.3 15.7 13.8 11.9 11.0 11.2 | 131.8
>= 0.10 | 2.5 2.8 1.3 2.6 3.4 4.7 7.3 8.2 6.0 3.8 3.8 2.7 | 49.1
>= 0.25 | 0.8 0.8 0.3 1.2 1.1 2.1 3.0 4.6 3.1 1.4 0.9 0.8 | 20.1
>= 0.50 | 0.3 0.3 0.2 0.0 0.3 0.6 0.9 1.7 1.2 0.2 0.2 0.2 | 5.9
>= 1.00 | 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.1 0.2 0.0 0.0 0.1 | 0.6
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WIND (MPH) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
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Daily Avg Wind Speed| 1.8 2.4 4.3 5.1 5.3 4.5 4.4 3.9 4.0 3.6 2.4 1.5 | 3.6
Daily Avg Max 2-Min | 7.5 9.2 11.9 13.6 14.6 13.5 12.5 11.8 11.9 10.5 8.3 7.1 | 11.0
Daily Avg Peak Gust | 9.6 11.5 15.1 17.8 19.3 18.1 17.0 16.1 16.2 13.8 10.5 8.9 | 14.5
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Maximum Daily Avg | 16.9 13.9 20.5 17.4 14.6 10.6 12.6 10.1 12.5 15.9 15.1 10.0 | 20.5
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Maximum 2-Minute Avg| 35 39 36 39 30 30 30 23 28 30 31 35 | 39
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Date of Max 2min-Day| 22 02 13 22 23 27 04 16 25 17 05 02 |
-Year| 2008 2000 2003 2005 2008 1999 2007 1998 1998 2005 2002 2007 |
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Maximum Peak Gust | 54 63 44 52 40 35 41 34 45 41 38 46 | 63
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Date of Max Gust-Day| 22 02 13 22 12 30 04 20 25 17 05 02 |
-Year| 2008 2000 2003 2005 2008 2006 2007 1998 1998 2005 2002 2007 |
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Avg Number of Days: | |
Peak Gust >=30 | 0.9 1.3 1.3 1.2 1.4 0.7 0.6 0.6 0.8 1.0 0.6 0.3 | 10.9
Peak Gust >=40 | 0.3 0.2 0.2 0.4 0.2 0.0 0.1 0.0 0.2 0.1 0.0 0.1 | 1.5
Peak Gust >=50 | 0.1 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.3
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Max 2-Minute >=30| 0.1 0.1 0.2 0.2 0.1 0.1 0.1 0.0 0.0 0.1 0.2 0.0 | 1.0
Max 2-Minute >=40| 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
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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.