STATION: BELLINGHAM INTL AIRPORT (KBLI), WA
CLIMATOLOGICAL SUMMARY. Period of Record: Sep 1998 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 | 45.5 48.0 51.0 56.4 61.5 66.3 71.0 71.2 66.0 57.6 50.1 44.9 | 57.5
Avg Min Temp | 33.7 33.1 36.4 39.4 44.7 49.9 53.4 52.9 46.9 41.6 37.0 33.3 | 41.9
Avg Temperature | 39.6 40.6 43.7 47.9 53.1 58.1 62.2 62.0 56.4 49.6 43.6 39.1 | 49.7
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Extremes: | |
Extreme Max Temp| 63 60 76 77 84 84 94 89 87 74 79 66 | 94
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Date of Ext-Day | 19 24 29 11 26 12 11 09 28 06 07 04 |
-Year| 2005 2005 2004 2004 2005 1999 2007 2004 2003 1998 2001 2006 |
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Extreme Min Temp| 10 20 20 26 31 37 41 41 33 22 12 10 | 10
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Date of Ext-Day | 14 19 06 01 10 02 03 28 23 31 29 22 |
-Year| 2007 2006 2002 2008 1999 1999 2000 2000 2000 2002 2006 1998 |
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Heating Degree Days | 787 690 661 514 370 210 103 102 258 478 643 803 | 5619
Cooling Degree Days | 0 0 0 0 0 4 17 10 0 0 0 0 | 31
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 | 0.1
Max Temp >= 75 | 0.0 0.0 0.1 0.4 1.2 4.3 7.7 8.2 2.3 0.0 0.1 0.0 | 24.3
Max Temp <= 32 | 1.6 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.7 | 3.8
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Min Temp <= 32 | 12.4 13.3 7.9 3.5 0.2 0.0 0.0 0.0 0.0 2.4 9.8 13.7 | 63.2
Min Temp <= 20 | 1.8 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.0 | 4.5
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
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Avg Dew Point Temp | 34.2 33.3 36.3 39.2 45.1 49.8 53.4 54.1 50.2 43.9 37.7 33.2 | 42.5
Avg Wet Bulb Temp | 37.5 37.5 40.5 43.9 49.1 53.6 57.0 57.4 52.7 46.5 40.7 36.5 | 46.1
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Avg Sea Level Pres | 30.13 30.16 30.11 30.06 30.07 30.05 30.06 30.03 30.05 30.11 30.14 30.15 | 30.09
(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 | 0.3 0.8 0.8 0.2 0.1 0.6 0.3 0.1 0.5 0.5 0.5 0.5 | 5.2
Heavy Fog | 4.0 3.4 1.9 0.9 0.7 0.4 0.7 1.8 5.7 7.0 3.9 3.3 | 33.6
Fog | 21.1 16.1 16.6 13.8 13.8 11.8 8.6 11.9 18.9 20.1 18.5 17.5 | 188.7
Hail | 0.1 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
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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 | 4.56 2.39 3.39 2.20 2.30 1.81 0.73 1.46 1.62 3.41 5.22 4.29 | 33.38
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Maximum Daily | 1.45 1.65 1.46 0.91 1.28 0.79 0.63 1.12 0.98 2.46 2.64 1.55 | 2.64
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Date of Ext-Day | 17 21 11 11 27 03 22 24 29 16 24 13 |
-Year| 2005 2002 2007 2005 2004 2008 2000 2004 2005 2003 2004 2001 |
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Avg Number of Days: | |
>= 0.01 | 21.6 16.9 19.4 15.2 14.5 11.6 5.7 7.7 14.2 18.4 21.1 21.5 | 187.7
>= 0.10 | 12.5 7.5 10.6 7.1 6.7 6.7 2.0 3.1 4.4 8.7 11.5 11.7 | 92.5
>= 0.25 | 6.5 2.7 4.5 2.9 2.6 2.3 1.1 2.2 2.3 4.2 6.7 6.2 | 44.2
>= 0.50 | 2.5 0.7 1.4 0.7 1.2 0.5 0.4 1.2 0.9 1.7 3.4 2.3 | 16.9
>= 1.00 | 0.4 0.2 0.1 0.0 0.1 0.0 0.0 0.1 0.0 0.5 0.7 0.2 | 2.3
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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| 8.4 7.3 8.3 6.9 6.5 7.1 7.4 6.5 5.0 5.8 7.5 8.4 | 7.1
Daily Avg Max 2-Min | 20.9 18.5 19.9 17.3 15.5 15.5 15.5 14.8 13.5 16.3 19.3 20.0 | 17.2
Daily Avg Peak Gust | 26.8 23.7 25.2 22.0 19.7 19.7 19.6 18.7 17.3 21.1 24.9 25.8 | 22.0
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Maximum Daily Avg | 28.6 25.4 27.1 20.4 17.2 16.7 15.1 14.7 17.1 23.0 26.4 30.0 | 30.0
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Maximum 2-Minute Avg| 51 49 51 38 35 28 29 29 39 40 57 52 | 57
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Date of Max 2min-Day| 29 05 03 01 28 27 08 21 24 17 24 11 |
-Year| 1999 1999 1999 2005 2001 2008 2005 2001 1999 2003 1998 2006 |
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Maximum Peak Gust | 66 62 63 49 41 33 43 37 52 54 74 62 | 74
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Date of Max Gust-Day| 29 04 03 01 28 28 04 15 24 29 12 11 |
-Year| 1999 2006 1999 2005 2001 2002 2008 2003 1999 2004 2007 2006 |
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Avg Number of Days: | |
Peak Gust >=30 | 11.7 7.9 8.7 4.9 2.2 1.2 1.6 0.8 1.3 6.3 10.5 11.1 | 68.2
Peak Gust >=40 | 5.7 3.4 3.5 1.2 0.1 0.0 0.2 0.0 0.4 2.3 4.5 5.4 | 26.7
Peak Gust >=50 | 1.4 0.8 0.7 0.0 0.0 0.0 0.0 0.0 0.1 0.5 1.4 2.1 | 7.0
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Max 2-Minute >=30| 6.3 3.9 4.2 1.3 0.2 0.0 0.0 0.0 0.5 2.3 5.2 0.0 | 23.9
Max 2-Minute >=40| 1.1 0.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.2 0.0 | 3.5
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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.