2013 Climate Summary for Rock Springs
Sweetwater County Airport
  • 3rd Warmest June on Record (1948-2013)

  • 4th Driest Year on Record
    • Driest June on Record (tie)
Temperature °F   Wind   Precipitation   Snowfall
 
Temperature °F
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Average High 27.4 34.2
46.4
49.8
66.1
82.1
87.4
84.0
69.9
52.5
43.2
27.4
55.9
 Normal Average High (1981-2010) 30.3 33.2 43.9 53.7 63.8 74.8 83.8 81.5 70.3 56.5 40.4 29.8 55.3
 Average Low  9.0  15.8  23.9 25.2
39.5
49.5
56.4
55.5
47.2
31.1
21.9
12.1
32.3
 Normal Average Low 12.5 14.8 23.1 29.4 37.7 46.4 54.0 52.2 42.7 32.3 21.2 12.5 31.7
 Mean Temperature  18.2  25.0  35.2  37.5  52.2  65.8  71.9  69.8  58.6  41.8  32.5 19.4
44.1
 Normal Mean Temperature 21.4 24.0 33.5 41.6 50.8 60.6 68.9 66.9 56.5 44.4 30.8 21.1 43.5
 Departure from Normal  -3.2  1.0  1.7  -4.1 2.0
  5.2  3.0  2.9  2.1  -2.6  1.7 -1.7
0.6
 Rank - Warmest to Coldest
  65 years of record
  (P.O.R 1948-2013)
 39 28 12 52 17  3       
 7  17 50 23 47 10
 Highest Daily Maximum  44  46  65  70  81  94  93  90  88  70  58 45 94
 Date of Occurrence  27  5  14  27,28  13,14  28,29  16  17,19  5  1  11  2  7/28,29
 Lowest Daily Minimum  -18  -1  7  6  21  36  50  47  31  19  1  -19  -19
 Date of Occurrence  14  11  25  10  2  5  30  14  27  5  22  6 12/6
 Number of Days with:                          
    Maximum >= 90° 0 0 0 0 0  4  11  2 0 0 0 0 17
    Maximum <= 32°  17  12  3  3 0 0 0 0 0  1  3  16 55
    Minimum <= 32°  31  28  28  23  3 0 0 0 3  20  29  28 193
    Minimum <= 0° 10 1 0 0 0 0 0 0 0 0 0  6  17
 Record Highs Set or Tied  0  0  2 0 2 5 0 2  1  0 0 0  12
 Record Lows Set or Tied  1 0 0 6 0 0 0 0 0  2  1 2 12
 

Records set during 2013:

Temperatures (degrees F):

Consecutive Days with
Maximum >= 90°
Rank Year Number of Days
1 2003 16
2 2002 14
3 1990 10
4 2007 9
5 2013,
2001
8
 
    Warmest Months of June on Record
Rank Year Average Temperature °F
1 1988 67.5
2 1977 67.0
3 2013,
2012
65.8
5 2006 65.1
 

 
Max

March: 65 on the 14th, 62 on the 15th.
May: 81 on the 13th, 81 on the 14th.
June: 88 on the 9th, 88 on the 10th, 93 on the 27th, 94 on the 28th, 94 on the 29th (tie).
August: 90 on the 17th (tie), 90 on the 19th (tie).
September: 88 on the 5th (tie).

Min:  

January: -18 on the 14th
April:  9 on the 9th, 6 on the 10th, 19 on the 14th, 15 on the 17th, 12 on the 18th, 11 on the 23rd.
October:  22 on the 4th (tie), 19 on the 5th.
November: 
1
on the 5th.
December:  -13 on the 4th (tie), -19 on the 6th.
 
 
Wind
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Average Speed (MPH) 12.4 14.1 13.0 15.7 11.6 11.2 8.2  7.5 10.6 10.4 10.5 16.3 11.8
 Maximum 3-sec Gust  52  48  69  71  58  59  61  54  48  48  45 58 69
 Direction (tens of degrees)  27  27  27  6  26  34  28  32  26  26  26  26 27
 Date of Occurrence  30  13  17  8  16  29  21  14  30  31  17  23  3/17
              
 
Precipitation
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches)  0.05 0.32 0.19
0.37
0.56
Tr
0.21
0.50
1.37
0.86
0.03
0.18
4.64
 Normal Precipitaton (1981-2010) 0.45 0.48 0.68 0.91 1.21 0.79 0.64 0.62 0.92 0.87 0.49 0.50 8.56
 Departure from Normal  -0.40 -0.16
-0.49
-0.54
-0.65
-0.79
 -0.43  -0.12  0.45 -0.01
 -0.46  -0.32  -3.92
 Percent of Normal  11 67
28
41
46
0
33
81
149
99
6
36
54

 Rank - Driest to Wettest
  65 years (1948-2013)

 5  27  27 42 21  1 (tie) 14 31  55  42  4  13  4 
 Greatest 24-HR Total  0.01  0.09  0.04  0.08  0.33 Tr  0.17  0.27  0.60 0.49  0.02 0.10 0.60
 Dates of Occurrence 5 days  10,26  9,21  22,30  19-20 3 days  1  13  26-27  3-4  20-21  3 9/26-9/27
 Number of Days with:                          
    Precipitation >= 0.01  5 6 8 10  6 0  4  3  10  8 3 3 66
    Precipitation >= 0.10  0  0  0  0  2  0  1  2  4  3  0  1 13
    Precipitation >= 1.00 0 0 0 0  0 0  0 0 0 0 0 0 0
Daily Precipitaton Records Set or Tied 0 0 0  0 0 0 0 0 0 0 0 0 0
             
Records set during 2013:

 Precipitation:

Driest Years on Record
Rank Year Precipitation (inches)
1 2012 3.01
2 1988 4.53
3 1974 4.54
4 2013 4.64
5 2002 4.97

  

Driest Months of June on Record
 Rank  Year  Precipitation (inches)
 1 2013,2012,1956 Trace
 4 1977
0.03
 5 1980
0.06
 6 2002
0.08

 

One day Precipitation:

None.
 
 
Snowfall
(from the Rock Springs COOP - RFSW4; Period of Record 2002-2013)
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches) 2.0 9.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 7.5 2.6 10.5 31.7
        1981-2010 Normals are not available for this location.
 
 
 


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