STATION: HAVRE CITY-COUNTY AIRPORT (KHVR), MT
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 | 29.5 34.8 44.6 58.0 67.8 75.2 87.9 85.8 72.7 58.5 42.8 32.6 | 57.5
Avg Min Temp | 7.0 12.7 19.9 29.9 39.6 48.3 54.2 51.9 41.9 30.2 19.8 10.1 | 30.5
Avg Temperature | 18.2 23.7 32.3 43.9 53.7 61.7 71.1 68.9 57.3 44.4 31.3 21.3 | 44.0
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Extremes: | |
Extreme Max Temp| 64 64 79 91 96 100 106 109 101 84 78 63 | 109
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Date of Ext-Day | 23 22 30 28 24 28 23 03 02 18 12 13 |
-Year| 2005 2002 2004 2001 2001 2006 2007 2001 1998 2003 1999 1998 |
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Extreme Min Temp| -41 -31 -27 4 14 27 39 34 21 -2 -27 -33 | -41
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Date of Ext-Day | 11 24 09 02 02 03 26 17 23 31 21 28 |
-Year| 1997 2003 2002 2002 2005 1998 1999 2002 2000 2003 1996 1996 |
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Heating Degree Days | 1450 1166 1015 632 359 136 20 41 254 641 1011 1354 | 8079
Cooling Degree Days | 0 0 0 1 9 38 208 160 23 1 0 0 | 440
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.1 0.8 1.9 13.9 12.0 2.4 0.0 0.0 0.0 | 31.1
Max Temp >= 75 | 0.0 0.0 0.3 2.4 8.7 16.8 29.3 26.8 13.5 2.8 0.1 0.0 | 100.6
Max Temp <= 32 | 14.2 10.5 6.3 0.9 0.0 0.0 0.0 0.0 0.0 0.6 6.7 12.3 | 51.5
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Min Temp <= 32 | 29.7 27.7 28.4 17.6 6.1 0.2 0.0 0.0 3.2 18.8 25.8 30.1 | 187.7
Min Temp <= 20 | 21.8 19.0 12.4 3.7 0.3 0.0 0.0 0.0 0.0 3.4 13.7 22.4 | 96.7
Min Temp <= 0 | 11.0 5.2 2.9 0.0 0.0 0.0 0.0 0.0 0.0 0.1 2.6 7.9 | 29.8
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Avg Dew Point Temp | 11.8 15.5 20.6 27.8 35.6 45.8 47.8 44.4 39.0 29.8 20.9 13.1 | 29.3
Avg Wet Bulb Temp | 16.7 20.9 27.7 37.2 45.3 53.2 57.8 55.5 47.7 37.6 27.3 18.9 | 37.2
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Avg Sea Level Pres | 30.14 30.10 30.09 30.05 29.98 29.94 29.91 29.95 29.98 30.06 30.11 30.15 | 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 | 0.1 0.0 0.2 1.2 2.8 8.9 8.6 6.3 2.2 0.5 0.0 0.0 | 30.8
Heavy Fog | 2.8 2.8 2.3 1.2 0.8 0.3 0.2 0.2 0.2 1.4 1.5 1.8 | 15.4
Fog | 11.9 11.8 11.6 6.0 5.2 6.7 2.3 2.6 4.2 5.7 8.1 8.6 | 84.7
Hail | 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
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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 | 0.21 0.26 0.34 0.83 1.80 2.57 0.98 0.80 1.01 0.50 0.34 0.25 | 9.89
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Maximum Daily | 0.22 0.38 0.71 0.98 0.99 1.51 1.33 1.16 0.89 0.43 0.48 0.48 | 1.51
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Date of Ext-Day | 20 23 27 19 23 03 12 08 23 12 05 28 |
-Year| 2007 2007 2007 2007 2004 1999 2001 2002 2007 2000 2008 1998 |
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Avg Number of Days: | |
>= 0.01 | 5.0 5.4 5.3 6.8 9.7 13.4 6.8 7.1 7.3 5.6 4.7 5.2 | 82.3
>= 0.10 | 0.5 0.8 0.9 2.3 4.8 6.1 2.3 2.2 3.1 1.9 1.0 0.7 | 26.6
>= 0.25 | 0.0 0.1 0.3 1.1 2.4 3.3 1.2 1.0 1.2 0.3 0.2 0.2 | 11.3
>= 0.50 | 0.0 0.0 0.1 0.2 1.1 1.4 0.7 0.2 0.2 0.0 0.0 0.0 | 3.9
>= 1.00 | 0.0 0.0 0.0 0.0 0.0 0.6 0.2 0.1 0.0 0.0 0.0 0.0 | 0.8
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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| 10.1 9.6 10.6 10.6 11.1 10.1 9.2 9.2 9.3 9.8 10.4 10.8 | 10.1
Daily Avg Max 2-Min | 21.2 20.5 22.6 23.3 23.7 23.0 23.6 22.6 21.5 22.0 22.0 22.4 | 22.4
Daily Avg Peak Gust | 24.9 24.0 26.9 28.5 29.5 28.1 29.6 27.8 26.1 26.2 26.0 26.4 | 27.0
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Maximum Daily Avg | 23.5 24.5 25.5 24.0 26.6 26.5 23.9 22.8 22.3 22.8 26.3 25.7 | 26.6
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Maximum 2-Minute Avg| 46 45 51 49 46 58 52 49 56 60 52 46 | 60
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Date of Max 2min-Day| 03 11 24 04 19 04 04 06 09 31 13 13 |
-Year| 2003 2002 2008 2000 2001 2006 1996 2004 1998 1999 2006 2006 |
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Maximum Peak Gust | 55 54 62 60 61 76 67 63 63 69 60 53 | 76
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Date of Max Gust-Day| 03 01 24 12 19 04 04 06 09 31 12 17 |
-Year| 2003 2006 2008 2003 2001 2006 2008 2004 1998 1999 2007 2001 |
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Avg Number of Days: | |
Peak Gust >=30 | 9.0 6.9 11.3 12.7 14.5 12.6 13.1 11.1 9.9 10.1 9.9 11.3 | 132.4
Peak Gust >=40 | 2.5 1.6 2.4 3.2 4.0 3.0 4.2 3.3 2.4 2.9 2.7 2.7 | 34.9
Peak Gust >=50 | 0.1 0.3 0.4 0.5 0.4 0.5 1.3 0.5 0.5 0.5 0.2 0.3 | 5.6
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Max 2-Minute >=30| 5.1 3.1 5.7 4.8 6.6 5.4 6.6 5.4 4.2 5.5 5.3 0.0 | 57.6
Max 2-Minute >=40| 0.3 0.4 0.5 0.6 0.6 1.0 1.5 0.5 0.6 0.8 0.5 0.0 | 7.4
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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.