STATION: ANCHORAGE-MERRILL FIELD AIRPORT (PAMR), AK
CLIMATOLOGICAL SUMMARY. Period of Record: Nov 1997 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 | 22.2 28.4 34.2 46.4 57.5 65.0 67.6 65.4 56.3 42.0 29.1 24.5 | 44.9
Avg Min Temp | 8.0 12.4 17.4 29.6 40.8 49.5 53.7 51.0 42.5 30.3 16.7 10.6 | 30.2
Avg Temperature | 15.1 20.4 25.8 38.0 49.2 57.2 60.7 58.2 49.4 36.2 22.9 17.5 | 37.5
| |
Extremes: | |
Extreme Max Temp| 50 49 49 71 78 81 85 83 69 67 55 55 | 85
| |
Date of Ext-Day | 07 02 20 29 21 26 14 09 21 09 26 04 |
-Year| 2001 2007 1998 2005 2002 2004 2003 2003 2000 2006 2002 2001 |
| |
Extreme Min Temp| -22 -26 -10 -1 28 38 42 35 26 4 -15 -17 | -26
| |
Date of Ext-Day | 17 04 09 01 03 05 01 28 29 26 26 16 |
-Year| 2004 1999 1999 2004 2001 2006 2008 1998 2000 2001 2006 2001 |
| |
Heating Degree Days | 1548 1260 1216 810 491 235 143 213 467 894 1264 1472 | 10013
Cooling Degree Days | 0 0 0 0 0 2 8 3 0 0 0 0 | 14
| |
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 0.7 2.0 3.2 2.7 0.0 0.0 0.0 0.0 | 8.7
Max Temp <= 32 | 24.5 17.6 11.1 0.9 0.0 0.0 0.0 0.0 0.0 4.2 19.5 24.0 | 101.9
| |
Min Temp <= 32 | 30.5 27.4 29.2 19.3 1.4 0.0 0.0 0.0 2.6 17.9 27.7 30.7 | 186.8
Min Temp <= 20 | 25.3 20.0 16.4 3.2 0.0 0.0 0.0 0.0 0.0 3.2 17.5 24.0 | 109.6
Min Temp <= 0 | 8.7 4.9 3.8 0.1 0.0 0.0 0.0 0.0 0.0 0.0 3.9 6.9 | 28.4
| |
Avg Dew Point Temp | 11.1 15.4 16.4 25.9 34.9 45.1 50.6 49.8 41.8 29.7 18.5 13.8 | 29.4
Avg Wet Bulb Temp | 14.8 19.6 23.5 33.5 42.9 51.0 55.0 53.6 45.9 33.7 22.0 17.2 | 34.4
| |
------------------------------------------------------------------------------------------------------
| |
Avg Sea Level Pres | 30.21 30.19 30.20 30.08 30.01 29.97 29.94 29.98 30.04 30.11 30.10 30.32 | 30.09
(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 0.0 0.0 0.0 0.0 0.3 0.2 0.5 0.1 0.0 0.0 0.0 | 1.1
Heavy Fog | 4.3 2.8 1.5 0.3 0.2 0.0 0.0 0.1 0.5 2.5 4.1 3.6 | 19.8
Fog | 17.0 10.9 8.2 4.6 3.0 3.8 7.1 9.8 9.6 11.7 14.5 16.1 | 116.3
Hail | 0.5 0.0 0.2 0.1 0.1 0.2 0.1 0.0 0.0 0.1 0.2 0.3 | 1.8
| |
------------------------------------------------------------------------------------------------------
| |
PRECIPITATION (In) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Average Monthly | 0.65 0.72 0.65 0.44 0.53 1.03 1.69 2.69 3.28 1.45 0.64 1.02 | 14.78
| |
Maximum Daily | 0.62 0.90 0.56 1.28 0.48 0.80 0.97 1.21 1.42 1.76 0.70 1.78 | 1.78
| |
Date of Ext-Day | 03 02 18 25 03 16 15 12 06 01 08 10 |
-Year| 2005 2000 2002 2008 1998 2004 2006 1999 2005 2002 2004 2003 |
| |
Avg Number of Days: | |
>= 0.01 | 6.1 6.6 6.8 5.5 7.8 10.1 12.9 14.9 16.1 12.4 6.1 6.4 | 111.6
>= 0.10 | 2.3 1.9 2.4 1.3 1.8 2.8 5.4 7.8 8.3 3.9 1.9 3.4 | 43.0
>= 0.25 | 0.6 0.8 0.8 0.2 0.5 1.3 2.2 3.6 4.6 1.8 0.6 1.2 | 18.3
>= 0.50 | 0.2 0.2 0.1 0.1 0.0 0.3 0.5 1.2 1.9 0.3 0.2 0.3 | 5.1
>= 1.00 | 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.2 0.2 0.2 0.0 0.1 | 0.7
| |
------------------------------------------------------------------------------------------------------
| |
WIND (MPH) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
| |
Daily Avg Wind Speed| 3.2 3.1 4.4 4.6 5.3 5.1 4.7 3.9 3.7 3.6 3.2 3.0 | 4.0
Daily Avg Max 2-Min | 10.6 10.6 12.3 12.8 14.2 13.2 12.2 11.3 11.6 11.4 10.5 10.5 | 11.8
Daily Avg Peak Gust | 13.4 13.3 15.8 16.3 17.9 16.6 15.3 14.4 14.9 14.5 13.2 13.3 | 14.9
| |
Maximum Daily Avg | 16.0 14.0 25.9 15.1 16.9 9.9 10.4 13.2 17.4 13.0 13.6 14.0 | 25.9
| |
Maximum 2-Minute Avg| 32 32 46 31 29 25 22 32 31 31 36 32 | 46
| |
Date of Max 2min-Day| 09 02 12 03 01 05 02 17 24 17 19 02 |
-Year| 2002 2000 2003 2001 2001 2007 2003 1998 2005 2005 2004 2007 |
| |
Maximum Peak Gust | 44 47 61 43 37 35 31 40 40 48 47 48 | 61
| |
Date of Max Gust-Day| 09 02 12 20 01 18 24 16 24 17 19 02 |
-Year| 2002 2000 2003 2002 2001 2005 2003 1998 2005 2005 2004 2007 |
| |
Avg Number of Days: | |
Peak Gust >=30 | 1.5 1.2 2.2 1.2 0.8 0.4 0.1 0.5 0.8 1.1 1.4 1.6 | 12.7
Peak Gust >=40 | 0.5 0.2 0.7 0.1 0.0 0.0 0.0 0.1 0.1 0.2 0.2 0.3 | 2.3
Peak Gust >=50 | 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
| |
Max 2-Minute >=30| 0.2 0.2 0.6 0.2 0.0 0.0 0.0 0.2 0.1 0.2 0.2 0.0 | 1.8
Max 2-Minute >=40| 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
| |
------------------------------------------------------------------------------------------------------
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.