2013 Year in Review
2013 Climate Narrative...coming soon! Climate Statistics:
Muscle Shoals or Huntsville

2013 Statistics for Muscle Shoals (Northwest Regional Alabama Airport)

Summary

    2013 Normal** (1981-2010 Normals) Ranking**
Temperatures Below Normal 61.4º 61.6º 36th Warmest1
Precipitation Above Normal 55.22 inches 53.20 inches 31st Wettest
Snowfall Below Normal Trace 2.2 inches N/A

 

Temperature Table [Back to Top]

Month

Avg Temp* Normal** Departure** Ranking** 2012 2011 2010 2009
January 46.4 41.0 +5.4 15th Warmest 47.6 37.4 36.1 40.7
February 45.4 45.2 +0.2 Tied-42nd Warmest 49.2 47.3 37.7 46.1
March 48.1 53.2 -5.1 Tied-20th Coldest 63.3 54.0 50.2 54.6
April 60.9 61.4 -0.5 Over 50th 64.5 65.3 64.2 61.0
May 69.0 69.8 -0.8 Tied-50th Coolest 73.7 70.0 72.4 70.4
June 78.3 77.0 +1.3 Tied-28th Warmest 77.8 80.9 80.9 78.4
July 78.3 80.4 -2.1 Tied-23rd Coolest 84.0 83.1 83.0 76.7
August 78.1 79.8 -1.7 41st Coolest 79.3 82.5 83.7 77.4
September 75.0 73.2 +1.8 Tied-35th Warmest 72.1 70.4 75.8 73.7
October 63.9 62.1 +1.8 Tied-27th Warmest 60.7 60.0 62.8 59.8
November 48.6 52.1 -3.5 Tied-26th Coldest 49.9 54.0 52.4 53.2
December 44.3 43.3 +1.0 44th Warmest 49.4 46.3 38.8 41.9
Annual
2013 61.4  61.6 -0.2  36th Warmest1 64.3 62.6 61.7 61.2
Seasonal
Winter (Dec 2012/Jan/Feb) 47.1 43.2 +3.9 Tied-8th Warmest 47.7 41.0 38.6 43.6
Spring (Mar/Apr/May) 59.3 61.5 -2.2 Tied-24th Coolest 67.2 63.1 62.3 62.0
Summer (Jun/Jul/Aug) 78.2 79.1 -0.9 Tied-38th Coolest 80.4 82.2 82.6 77.6
Fall (Sep/Oct/Nov) 62.5 61.9 +0.6 Tied-42nd Warmest 60.9 61.5 63.7 62.2

 

Precipitation Table [Back to Top]

Month Precipitation* Normal** Departure** Ranking** 2012 2011 2010 2009
January 8.74 4.61 +4.13 8th Wettest 6.87 3.27 4.96 2.41
February 2.76 4.66 -1.90 26th Driest 2.79 2.08 3.31 4.00
March 4.77 4.76 +0.01 Over 50th 2.85 6.99 3.89 6.26
April 4.50 4.35 +0.15 48th Wettest 0.90 9.16 1.90 4.53
May 4.14 5.12 -0.98 Over 50th 4.28 3.00 7.44 6.27
June 4.68 4.76 -0.08 Tied-34th Wettest 1.51 7.21 3.76 3.27
July 7.60 4.30 +3.30 11th Wettest 6.37 4.23 3.54 6.87
August 5.70 3.15 +2.55 Tied-18th Wettest 2.32 6.12 2.18 2.13
September 2.46 3.72 -1.26 47th Driest 5.71 7.09 2.91 7.69
October 1.81  3.43 -1.62 45th Driest 2.40 1.74 2.87 9.27
November 3.29 4.66 -1.37 50th Driest 1.56 3.86 5.38 1.68
December 4.77 5.68 -0.91 Over 50th 5.42 6.64 2.15 4.46
Annual
2013 55.22 53.20 +2.02 31st Wettest 42.98 61.39 44.29 58.84
Seasonal
Winter (Dec 2012/Jan/Feb) 16.92 14.95 +1.97 37th Wettest 16.30 7.50 12.73 16.95
Spring (Mar/Apr/May) 13.41 14.23 -0.82 49th Driest 8.03 19.15 13.23 17.06
Summer (Jun/Jul/Aug) 17.98 12.21 +5.77 14th Wettest 10.20 17.56 9.48 12.27
Fall (Sep/Oct/Nov) 7.56 11.81 -4.25 34th Driest 9.67 12.69 11.16 18.64

 

Snowfall Table [Back to Top]

Month 2013 Snowfall Normal**   2012 2011 2010 2009
January Trace 0.4   0.1 9.8 1.1 Trace
February Trace 1.0   0.0 1.4 3.7 Trace
March Trace 0.4   0.0 0.0 Trace 1.2
April 0.0 Trace   0.0 0.0 0.0 0.0
October 0.0 0.0   0.0 0.0 0.0 0.0
November 0.0 0.0   0.0 Trace 0.0 0.0
December Trace 0.4   Trace Trace 3.5 Trace
Annual
Annual Total Trace 2.2  

11.2 

8.3

1.2

2.6



Miscellaneous [Back to Top

  2013 Normal** (1981-2010)   2012 2011 2010 2009
Days with Max Temp 32 or Below 0  3   0 2 7 1
Days with Max Temp 90 or Above 56  58   83 95 96 45
Days with Max Temp 100 or Above 0 3***   16 2 11 0
Days with Min Temp 32 or Below 59  58   46 56 78 59
Raindays (0.01" or More) 118  113   116 111 108 140
Days 0.10" or More 88  80   77 73 81 93
Days 0.50" or More 41  33   33 41 36 44
Days 1.00" or More 16  15   8 19 11 19
Days 2.00" or More 2  4   2 7 2 1
Heating Degree Days 3115 3105   2315 2934 3475 3039
Cooling Degree Days 1903 1874   2165 2183 2340 1757
Max Temperature 96 on June 27th and August 31st
Min Temperature 19 on November 28th
Highest Sea-Level Pressure**** 30.70" on November 13th
Lowest Sea-Level Pressure**** 29.40" on February 26th
Highest Wind****

41 mph from 290 degrees (WNW) on March 18th

Max Wind Gust**** 55 mph from 300 degrees (NW) on March 18th

1 Temperatures can be below (above) normal but rank among the warmest (coolest) years because of the skewness of the data (i.e. the data do not have a standard normal distribution).

*Temperatures are expressed in degrees Fahrenheit and precipitation values are expressed in units of inches. 

 ** Normals and departures from normal are based on the current 30 year climatological normal period (1981-2010). Monthly rankings are based on the entire period of record, which is much longer than the normals period.  For Muscle Shoals, temperature and precipitation data date back to 1893.  Periods continaining missing daily data were not counted in the rankings. Annual and seasonal temperatures are computed from the average of daily temperatures. 

 *** Note: The average for 100+ temperatures is based on the 1981-2010 climatological period...in which there were 90 occurrences. Although...100+ temps do not occur every year.

**** Note: The wind and pressure sensors failed on a few occasions for brief periods during the year.  The values listed are the maximum or minimum values recorded, and may not necessarily reflect the actual max or min values that occurred during the year.

These data are preliminary and have not undergone final quality control by the National Climatic Data Center (NCDC). Therefore, these data are subject to revision. Final and certified data can be accessed at the NCDC - http://www.ncdc.noaa.gov.


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