STATION: MONTROSE REGIONAL AIRPORT (KMTJ), CO
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 | 39.8 44.8 55.7 63.5 75.0 85.4 91.1 86.4 77.5 65.4 50.9 38.6 | 64.5
Avg Min Temp | 17.0 21.7 27.8 35.0 43.2 50.9 58.1 55.8 47.0 36.0 25.2 15.7 | 36.1
Avg Temperature | 28.4 33.2 41.7 49.2 59.1 68.2 74.6 71.1 62.3 50.7 38.1 27.2 | 50.3
| |
Extremes: | |
Extreme Max Temp| 58 66 78 84 98 99 101 100 92 84 73 64 | 101
| |
Date of Ext-Day | 02 27 20 27 31 29 14 01 01 02 01 01 |
-Year| 1998 2006 2004 2000 2002 1998 2002 2008 1996 2000 2008 1999 |
| |
Extreme Min Temp| -11 -8 0 16 25 34 43 41 25 19 -9 -13 | -13
| |
Date of Ext-Day | 05 01 02 16 03 06 02 28 29 23 30 22 |
-Year| 2004 2002 2002 1999 2008 1999 1997 2004 1999 2008 2006 1998 |
| |
Heating Degree Days | 1133 897 722 473 207 40 0 3 120 445 808 1173 | 6022
Cooling Degree Days | 0 0 0 0 23 135 298 193 38 1 0 0 | 688
| |
Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 1.2 10.8 20.6 9.2 1.2 0.0 0.0 0.0 | 43.1
Max Temp >= 75 | 0.0 0.0 0.4 4.0 18.8 27.1 30.8 30.1 20.7 6.1 0.0 0.0 | 138.1
Max Temp <= 32 | 5.8 2.2 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 7.8 | 17.8
| |
Min Temp <= 32 | 29.8 26.4 24.0 11.2 1.8 0.0 0.0 0.0 0.8 10.6 25.2 30.5 | 160.2
Min Temp <= 20 | 19.1 11.2 3.8 0.5 0.0 0.0 0.0 0.0 0.0 0.2 7.6 21.8 | 64.1
Min Temp <= 0 | 1.2 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.3 | 3.2
| |
Avg Dew Point Temp | 17.7 19.3 21.4 24.1 30.2 33.6 45.0 46.7 40.0 30.8 22.6 16.6 | 29.0
Avg Wet Bulb Temp | 24.1 27.5 33.4 38.6 45.5 50.6 57.4 56.7 50.1 40.8 31.2 22.9 | 39.9
| |
------------------------------------------------------------------------------------------------------
| |
Avg Sea Level Pres | 30.18 30.11 30.04 29.95 29.93 29.90 29.92 29.97 29.99 30.06 30.15 30.20 | 30.03
(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 0.2 1.0 1.7 2.3 3.8 6.4 7.4 4.5 1.9 0.1 0.2 | 29.4
Heavy Fog | 1.7 1.2 0.9 0.4 0.2 0.0 0.0 0.1 0.1 0.1 0.9 1.8 | 7.3
Fog | 11.4 8.1 6.0 4.2 2.0 1.3 2.5 3.0 4.3 5.0 6.4 10.3 | 64.6
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
| |
------------------------------------------------------------------------------------------------------
| |
PRECIPITATION (In) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Average Monthly | 0.43 0.37 0.52 0.91 0.63 0.39 0.51 0.87 1.50 1.10 0.62 0.48 | 8.34
| |
Maximum Daily | 0.37 0.42 0.47 0.67 0.92 0.44 0.95 0.50 0.77 0.96 0.73 0.52 | 0.96
| |
Date of Ext-Day | 03 28 18 30 25 17 31 16 04 25 28 01 |
-Year| 2004 2007 1998 1999 1997 1999 1999 2005 1997 1998 2006 2007 |
| |
Avg Number of Days: | |
>= 0.01 | 5.7 6.5 7.1 7.2 4.4 3.9 5.0 7.3 8.8 7.2 6.2 5.6 | 74.7
>= 0.10 | 1.3 1.2 1.5 2.8 1.8 1.2 1.7 3.1 3.9 3.2 1.9 1.9 | 25.5
>= 0.25 | 0.2 0.2 0.5 1.5 0.9 0.4 0.4 1.2 2.5 1.5 0.7 0.3 | 10.3
>= 0.50 | 0.0 0.0 0.0 0.2 0.4 0.0 0.2 0.1 0.6 0.5 0.2 0.1 | 2.2
>= 1.00 | 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
| |
------------------------------------------------------------------------------------------------------
| |
WIND (MPH) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Daily Avg Wind Speed| 5.4 5.9 7.3 8.5 8.3 8.4 7.3 6.8 7.0 6.6 5.8 5.3 | 6.9
Daily Avg Max 2-Min | 14.9 16.8 19.3 22.7 22.1 21.8 22.0 20.2 18.5 17.4 15.2 15.5 | 18.9
Daily Avg Peak Gust | 18.1 20.8 24.2 29.2 28.5 28.1 27.3 25.1 23.1 21.4 18.4 18.4 | 23.5
| |
Maximum Daily Avg | 17.4 18.5 21.8 20.2 20.3 18.9 13.1 11.9 17.0 15.6 14.6 16.1 | 21.8
| |
Maximum 2-Minute Avg| 36 40 46 51 44 43 40 43 39 45 43 43 | 51
| |
Date of Max 2min-Day| 26 15 14 18 21 06 07 26 16 11 14 26 |
-Year| 1999 2006 2001 2000 2002 2007 1996 2005 2002 2008 2005 2008 |
| |
Maximum Peak Gust | 49 55 56 62 55 58 56 55 54 61 58 56 | 62
| |
Date of Max Gust-Day| 28 15 30 08 11 06 07 21 29 11 14 26 |
-Year| 2008 2006 2008 2005 2000 2007 1996 2002 2007 2008 2005 2008 |
| |
Avg Number of Days: | |
Peak Gust >=30 | 4.0 5.2 7.8 13.4 12.6 12.7 11.8 9.2 6.9 6.5 4.1 4.2 | 98.4
Peak Gust >=40 | 0.8 1.3 2.2 4.3 4.2 2.9 3.0 1.3 1.5 1.8 0.9 0.9 | 25.1
Peak Gust >=50 | 0.0 0.2 0.5 1.3 1.0 0.2 0.5 0.2 0.3 0.5 0.2 0.2 | 4.8
| |
Max 2-Minute >=30| 1.0 1.9 3.3 5.5 5.3 3.8 5.2 3.2 2.1 2.3 1.3 0.0 | 35.0
Max 2-Minute >=40| 0.0 0.1 0.3 0.7 0.4 0.3 0.2 0.1 0.0 0.3 0.1 0.0 | 2.4
| |
------------------------------------------------------------------------------------------------------
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.