STATION: JORDAN AIRPORT (KJDN), MT
CLIMATOLOGICAL SUMMARY. Period of Record: Sep 1997 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
| |
Avg Max Temp | 32.1 35.7 45.8 58.3 66.8 74.8 89.1 85.9 74.2 58.6 45.9 34.9 | 58.5
Avg Min Temp | 5.2 11.0 20.4 29.9 39.1 47.9 56.0 53.2 41.7 29.6 17.9 8.4 | 30.0
Avg Temperature | 18.7 23.4 33.1 44.1 52.9 61.4 72.5 69.5 57.9 44.1 31.9 21.7 | 44.3
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Extremes: | |
Extreme Max Temp| 66 69 80 86 93 99 109 104 101 92 80 64 | 109
| |
Date of Ext-Day | 08 22 31 27 13 30 14 10 04 02 12 11 |
-Year| 2002 2002 2004 2001 2001 2003 2002 2000 1998 1997 1999 2004 |
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Extreme Min Temp| -40 -27 -31 7 18 29 40 36 21 -1 -30 -32 | -40
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Date of Ext-Day | 12 24 08 02 02 18 10 17 30 31 23 15 |
-Year| 1998 2003 2002 2002 2005 2004 1999 2002 2003 2002 2003 2008 |
| |
Heating Degree Days | 1436 1176 988 628 382 151 12 32 246 649 993 1343 | 8035
Cooling Degree Days | 0 0 0 0 8 42 245 173 35 1 0 0 | 503
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.3 1.8 15.3 12.0 3.4 0.1 0.0 0.0 | 32.8
Max Temp >= 75 | 0.0 0.0 0.6 2.3 8.6 15.2 29.6 27.2 14.8 3.3 0.3 0.0 | 101.7
Max Temp <= 32 | 12.9 9.9 5.3 0.5 0.0 0.0 0.0 0.0 0.0 1.0 6.1 11.1 | 46.8
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Min Temp <= 32 | 30.7 27.7 28.3 19.0 7.2 0.2 0.0 0.0 4.1 20.2 28.1 30.9 | 196.5
Min Temp <= 20 | 24.3 20.4 11.8 3.7 0.4 0.0 0.0 0.0 0.0 3.5 15.3 24.7 | 104.2
Min Temp <= 0 | 10.7 6.5 2.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 2.5 7.6 | 29.5
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Avg Dew Point Temp | 12.8 14.9 21.6 29.7 37.8 47.0 50.0 46.3 38.6 30.4 20.9 13.7 | 30.3
Avg Wet Bulb Temp | 18.0 20.8 28.6 38.0 46.0 53.8 59.8 56.9 48.3 37.8 27.6 19.5 | 37.9
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Avg Sea Level Pres | 30.13 30.11 30.09 30.05 30.01 29.95 29.92 29.94 30.00 30.08 30.12 30.12 | 30.04
(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 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.0
Heavy Fog | 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
Fog | 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
Hail | 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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PRECIPITATION (In) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Average Monthly | 0.23 0.30 0.33 1.20 1.84 2.28 1.45 1.16 0.78 1.06 0.44 0.19 | 11.26
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Maximum Daily | 0.26 0.27 0.42 1.31 0.94 1.49 1.58 1.43 0.78 0.79 0.98 0.35 | 1.58
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Date of Ext-Day | 02 16 30 19 31 08 26 10 21 28 20 29 |
-Year| 2000 2008 2006 2005 2000 2005 2001 2005 2000 1998 2007 2005 |
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Avg Number of Days: | |
>= 0.01 | 4.9 5.5 6.3 8.0 9.8 10.5 7.6 6.5 6.6 7.0 4.5 3.7 | 80.9
>= 0.10 | 0.6 1.0 0.8 2.8 4.7 5.1 3.8 2.8 2.4 2.8 1.0 0.5 | 28.5
>= 0.25 | 0.1 0.1 0.2 1.3 2.6 2.6 1.7 1.3 1.1 1.5 0.6 0.1 | 13.1
>= 0.50 | 0.0 0.0 0.0 0.8 1.0 1.5 0.7 0.6 0.3 0.5 0.2 0.0 | 5.8
>= 1.00 | 0.0 0.0 0.0 0.1 0.0 0.4 0.3 0.3 0.0 0.0 0.0 0.0 | 1.0
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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| 7.4 7.9 9.1 9.6 10.4 9.3 8.2 8.4 8.1 8.1 8.0 7.9 | 8.5
Daily Avg Max 2-Min | 18.3 18.4 20.9 22.2 23.6 22.5 22.6 21.2 20.2 20.2 20.0 19.6 | 20.8
Daily Avg Peak Gust | 21.7 21.8 25.3 27.7 29.4 28.2 28.4 26.8 25.2 24.5 24.2 23.5 | 25.6
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Maximum Daily Avg | 21.4 24.7 22.3 30.8 24.5 25.6 22.6 19.6 23.6 23.0 25.5 25.6 | 30.8
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Maximum 2-Minute Avg| 41 48 48 48 51 54 58 47 46 53 44 55 | 58
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Date of Max 2min-Day| 10 11 24 05 11 28 08 14 15 31 13 13 |
-Year| 2000 2002 2008 2000 2000 2005 2000 1999 1997 1999 2006 2006 |
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Maximum Peak Gust | 52 62 66 60 64 68 76 66 55 69 56 79 | 79
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Date of Max Gust-Day| 10 11 24 05 11 21 04 14 15 31 13 13 |
-Year| 2000 2002 2008 2000 2000 1999 2002 1999 1997 1999 2006 2006 |
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Avg Number of Days: | |
Peak Gust >=30 | 5.9 5.8 8.3 11.2 14.5 11.8 12.3 10.0 7.8 7.8 7.8 6.9 | 110.0
Peak Gust >=40 | 1.5 1.2 2.7 3.1 3.6 3.5 3.5 2.8 0.9 1.7 2.4 2.4 | 29.4
Peak Gust >=50 | 0.1 0.3 0.2 0.2 0.5 0.7 1.4 0.7 0.1 0.2 0.3 0.6 | 5.3
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Max 2-Minute >=30| 2.3 2.0 4.1 4.6 6.8 5.4 5.1 3.4 2.4 3.3 3.8 0.0 | 43.1
Max 2-Minute >=40| 0.3 0.4 0.6 0.5 0.6 0.7 1.5 0.7 0.3 0.3 0.4 0.0 | 6.3
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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.