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Climate Summaries

2013-2014 Water Year Precipitation and Percent of Normal for Selected Stations

Station Name:
Airports
Drought
Conditions

Oct
2013
Nov
2013
Dec
2013
  Jan
2014
Feb
2014
Mar
2014
Apr
2014
May
2014
Jun
2014
Jul
2014
Aug
2014
Sep
2014
  Total for
Water Year
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Big Piney  None 0.39 0.29 0.19   0.02
0.02
0.12
0.25
 0.74 0.18
        2.20
1981-2010 Normals
 0.53  0.21  0.30    0.31  0.35  0.44  0.53  0.84 0.79  0.71  0.69  0.78    4.30
Percent of Normal 
 74  138  63    6  6  27  47 88
 23    
   51
                               
Buffalo None 2.25
0.12 0.24   0.21
0.15 0.61 1.11 1.68 2.91         9.28
1981-2010 Normals  0.93  0.54  0.40    0.42  0.35  0.92  1.30  2.53  2.28  1.66  0.81  1.31    9.67
  Percent of Normal   242  22  60    50 43  66  85  66 128    
   96
                               
Casper   None 3.03 0.24 1.20    0.74 0.74 1.64 1.15 0.49 1.35         10.58
1981-2010 Normals  1.11  0.76  0.49    0.51 0.57  0.82  1.29  2.02  1.61  1.41  0.85  1.08    9.18
  Percent of Normal   273  32  245    145  130  200  89  24  84          115
Snowfall  16.4  3.6 15.7    14.2  11.5  18.7  5.8  0.9  0.0         86.8
1981-2010 Normals 7.4
 10.3 11.0
  9.1
9.8
10.9
11.6
2.9
0.1
0.0
0.0
1.8
  73.1
  Percent of Normal   222  35  143    156  117  172  50  31  0          119
                               
Evanston   None 0.96 0.18 0.06    0.03 T
0.08 0.22 0.84 1.20         3.57
  1981-2010 Normals 1.17 1.04 0.58   0.54 0.61 0.86 1.15 1.77 1.24 0.61 0.96 1.31    8.96
  Percent of Normal   82  17  10    6  0  9  19  47  97          40
                               
Greybull   None 1.12 T 0.03    0.04 0.22 0.18 0.71 0.55 0.94
        3.79
  1981-2010 Normals  0.60  0.30  0.28    0.23  0.18  0.40  0.71  1.65  1.20  0.66  0.42  0.88    5.55
  Percent of Normal   187 0  11    17  122  45  100  33  78          68
                               
Station Name:
Airports
Drought
Conditions

Oct
2013
Nov
2013
Dec
2013
  Jan
2014
Feb
2014
Mar
2014
Apr
2014
May
2014
Jun
2014
Jul
2014
Aug
2014
Sep
2014
  Total for
Water Year
Lander  None 3.08 0.13 0.69    0.61 0.19 1.18 0.70 1.51 0.60         8.69
  1981-2010 Normals  1.29  0.86  0.58    0.41  0.58  1.16  1.87  2.20  1.27  0.78 0.61  1.05   10.22
  Percent of Normal   239  15  119    149  33  102  37  69 47          85
Snowfall  21.9  3.5  13.1    8.9  3.8  13.9  4.3  2.2  0.0         71.6
1981-2010 Normals 9.8
 13.1 10.1
  7.6
10.3
16.1
16.8
4.8
0.1
0.0
0.0
2.7
   88.7
  Percent of Normal   223  27  130    117  37  86  26  46  0         81
                               
Riverton  None 1.94 0.03 0.28    0.68 0.22 0.50 0.22 0.70 1.12          5.69
  1981-2010 Normals  0.89  0.50  0.32    0.24  0.27  0.55  1.30  1.72  1.28  0.89  0.57  0.90    7.07
  Percent of Normal   218  6  88    283  81  91  17  41  88          80
Snowfall  17.5  1.5
 6.8
   11.1  5.0  3.4  0.5  2.7  0.0          48.5
                               
Rock Springs  D0 0.86 0.03 0.18    0.07 0.08 0.43 0.24
0.49 0.29         2.67
 1981-2010 Normals  0.87  0.49  0.50    0.45  0.48  0.68  0.91  1.21  0.79  0.64  0.62  0.92    6.38
  Percent of Normal   99  6  36    16  17  63  26  40  37          42
                               
Sheridan   None
2.47
0.17  1.12    0.64 1.21 1.69 1.54 1.73 2.20         12.77
  1981-2010 Normals  1.41  0.71  0.56    0.56  0.54  0.98  1.60  2.35 2.12  1.18  0.72  1.43    10.83
  Percent of Normal   175  24  200    114  224  172  96  74  104          118
                               
Worland None 1.78 0.12  0.12    0.25 0.13 0.40 0.29 1.14 1.62          5.85
  1981-2010 Normals 0.69 0.35 0.23    0.23 0.19 0.46 0.86 1.42 1.15 0.71 0.43 0.85    5.58
  Percent of Normal   258  34  52    109  68  87  34  80  141          105
                               
Station Name:
COOPS
Drought
Conditions

Oct
2013
Nov
2013
Dec
2013
  Jan
2014
Feb
2014
Mar
2014
Apr
2014
May
2014
Jun
2014
Jul
2014
Aug
2014
Sep
2014
  Total for
Water Year
                               
                               
Afton  None 2.98 0.71 0.93    1.16 2.40 1.53 1.61 0.72  1.38         13.42
  1981-2010 Normals 1.63 2.04 1.25   1.40 1.09 1.40 1.54 2.26 1.97 1.43 1.25 1.46   14.02
  Percent of Normal   183 48  74    83  220  109  105 32  70          96
Snowfall  6.5  8.5  12.3    17.3  29.0  11.3  4.8  1.0  0.0         90.7
                               
Bitter Creek 4NE  D0 0.97 0.05 0.39    0.27 0.35 0.68 0.20 0.58 0.11         3.60
  1981-2010 Normals 0.66 0.31 0.51   0.28 0.36 0.30 0.65 1.09 0.70 0.60 0.75 0.73    4.86
  Percent of Normal   147  16  76    96  97  227  31 53  16          74
                               
Cody  None 1.41 0.30 0.42    0.93 1.78 0.55 2.52 1.25 2.69         11.85
  1981-2010 Normals 0.89 0.48 0.33   0.33 0.33 0.56 1.06 1.82 1.68 1.11 0.91 1.06    7.48
  Percent of Normal   158  63  127    282  539  98  238 69  160          158
Snowfall  7.0  4.0  6.5    20.0  29.0  3.3  12.0 0.0  0.0         81.8
1981-2010 Normals 4.3 6.3 8.0   7.8 6.7
6.9 6.3 0.8 0.0 0.0 0.0 0.2   47.1
  Percent of Normal  163  63  81    256  433  48  190  0  0          174
                               
Dubois  None 3.23 0.37 0.35   0.35
1.12  0.64 0.61 1.55 1.01          9.23
  1981-2010 Normals 0.81 0.57 0.28   0.24 0.38 0.40 1.10 1.64 1.28 1.11 0.86 1.24    6.70
  Percent of Normal  399
 65  125
   146  295  160  55  95  79          138
Snowfall 19.5  5.0  8.0    7.2  25.6  13.6  6.0  10.5 T         95.4
1981-2010 Normals 3.0 5.8
5.1   3.9 5.7 6.0 8.5 3.9 0.6 0.0 0.0 2.6   42.5
  Percent of Normal  650  86  157    185  449  227  71  269  0         224
                               
Fossil Butte
National Monument
  None 2.14 0.43 1.08    0.39 1.35 0.71 0.58 1.04 1.69          9.41
1981-2010 Normals 1.11 0.86 0.74   0.49 0.68 0.82 0.98 1.41 1.03 0.85 0.93 1.10    8.12
  Percent of Normal  193
 50  146    80  199  87  59  74 164          116
Snowfall 6.5
 6.8  14.8    8.4  20.5  8.7  6.6  3.5 T          76.3
                               
Green River
 D0 3.10 0.15 1.10    0.05 0.35
1.05 0.40 1.35 0.57          8.12
  1981-2010 Normals 0.81 0.41 0.44    0.34  0.43 0.71  0.85 1.23 0.98 0.55  0.68  0.90    6.20
  Percent of Normal  383  37  250    15  81  148  47  110 58          131
Snowfall 10.5
 1.8  10.5    1.6  3.5  2.5  1.0  3.0 T          34.4
1981-2010 Normals 0.5 3.8 6.5   4.6 7.3 5.0 3.9 0.6 0.0 0.0 0.0 0.0   32.2
Percent of Normal
2100  47  162    35  48  50  26  500  0          107
                               
Station Name:
COOPS
Drought
Conditions

Oct
2013
Nov
2013
Dec
2013
  Jan
2014
Feb
2014
Mar
2014
Apr
2014
May
2014
Jun
2014
Jul
2014
Aug
2014
Sep
2014
  Total for
Water Year
Jeffrey City  None 2.08 0.17 0.72   0.39
0.13 1.13 0.64 1.47 0.52          7.29
  1981-2010 Normals 0.91 0.59 0.42    0.31  0.41 0.86  1.27 1.85 1.15 0.89  0.60  0.80    7.77
  Percent of Normal  229  29  171
   126  32  131  50  79  45          94
Snowfall 14.0  2.0  9.0    5.0  2.0  14.0  6.0  10.0  0.0         60.5
1981-2010 Normals 7.3 6.6 5.5   4.6 6.7 9.4 10.2 4.9 0.4 0.0 0.0 1.4    55.6
  Percent of Normal  192  30  164    109  30  149  59  204  0          109
                               
Kaycee  None 3.01 0.30 0.48    0.16 0.38  0.71 1.39 0.16 2.60          9.19
  1981-2010 Normals 1.04 0.57 0.31   0.30 0.34 0.74 1.46 2.37 1.84 1.42 0.80 1.18    8.97
  Percent of Normal  289  53  155
   53  112  96  95  7  141          102
Snowfall 11.5  5.0  9.5    3.2  7.1  2.0  0.1  0.0  0.0         38.4
1981-2010 Normals 1.5 4.2
6.0   5.9 6.3 8.0 4.7 0.6 0.1 0.0 0.0 0.2   37.3
  Percent of Normal  767  119  158    54  113  25  2  0  0         103
                               
Moose
  None 1.51  1.54 2.40    1.78 4.48 4.77 1.72 0.60 2.05          20.85
  1981-2010 Normals 1.47 2.64 2.67   2.58 1.82 1.62 1.49 1.88 1.61 1.29 1.29 1.44    17.78
  Percent of Normal  103  58  90    69  246  294  115 32  127          117
Snowfall 6.0  12.4  26.5    29.8  48.3  49.5  8.3  0.0  0.0          180.8
1981-2010 Normals 4.8 24.1 44.7   36.9 26.6 15.9 7.4 2.2 0.0 0.0 0.0 0.2    162.6
  Percent of Normal  125  51  59    81 182
 311  112  0  0         111
                               
Old Faithful
 None 1.23 2.47 2.05    1.89 2.90 6.43 3.05  2.44 3.21         25.67
  1981-2010 Normals 1.66 2.29 3.16    2.11 1.99
2.21
2.21
2.80
2.47
1.55
1.46
1.46
   20.90
  Percent of Normal   74  108 65
   90 146
291  138  87  130          123
Snowfall 9.0
 13.5  23.5
  21.0
46.0  76.5  20.0  1.2  0.6          211.3
1981-2010 Normals 7.7 31.7 43.8   37.5 31.1 26.8 19.3 7.3 1.2 0.0 0.0 1.4    206.4
  Percent of Normal  117
 43  54
   56 148  285  104  16  50          102
                               
Powell Field Station
  None 0.66 0.07 0.08    0.18 0.65 0.15 1.29 0.26 1.59          4.93
  1981-2010 Normals 0.56 0.18 0.13   0.21 0.13 0.29 0.51 1.40 1.35 0.87 0.52  0.65    4.76
  Percent of Normal  118 39 62
  86  500  52  253 19  118         104
Snowfall 0.5
 2.0  3.0
   3.0  10.7  1.0  3.0  0.0  0.0         23.2
1981-2010 Normals  1.2 1.3
1.2
  2.3
0.5
2.5
0.5
0.5
0.0
0.0
0.0
0.1
  10.0
  Percent of Normal  42
 154  250
   130 2140  40  600  0  0          232
                               
Riverton (downtown)
 None 1.72 0.04 0.31   0.63
0.14 0.49 0.32 1.07 1.62         6.34
  1981-2010 Normals 0.85 0.41 0.24   0.28 0.33 0.56 0.98 1.45 1.21 0.78 0.50 0.83    6.31
  Percent of Normal  202
 10 129
   225 42  88  33 74  134          100
Snowfall 9.5
 1.1  5.9
   10.1  4.9 5.5  2.9  2.5  T         42.4
1981-2010 Normals 3.7 4.3 4.8    4.8  6.0  5.9  6.1 1.2 0.0 0.0 0.0 0.3   36.8
  Percent of Normal  257
 26  123
   210  82  93  48  208  0         115
                               
Thermopolis   None 2.82 0.22 0.46    0.46 0.20  0.54 0.51 0.99 1.38          7.58
  1981-2010 Normals 1.26 0.80 0.46   0.35 0.45 0.87 1.46 1.86 1.51 0.88 0.58 1.23    9.02
  Percent of Normal   224  28  100    131  44  62  35  53  91          84
Snowfall 9.0
 4.0  10.0
   6.5  4.5  1.0  5.0  0.0  0.0          40.0
1981-2010 Normals 2.4
3.7
4.5
  5.6
 4.6 2.5
2.8
0.4
0.0
0.0
0.0
0.2
  26.5
  Percent of Normal  375
108 222
   116  98  40  179  0  0          151

Drought Classifications on Mayl 27, 2014     |      XX.X / M - Data partially or completely missing

Wyoming Climate      |      Click on Image to Enlarge
Statewide averages and ranks for periods including July 2014 will be available on August 12, 2014*
* 2014 Climate Monitoring Release Dates

Last Month

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: Last Month Percent of Normal Precipitation Wyoming: Last Month Departure from Normal Temperature
 Statewide Average (inches)
1.88
 Statewide Average (°F) 56.2
 20th Century Average 1.84
 20th Century Average 57.6
 Rank - Driest to Wettest (120 Years) 66th  Rank - Warmest to Coldest (120 Years) 86th
 Driest Month on Record: June 2012
0.45   Warmest Month on Record: June 1988
66.4
 Wettest Year on Record: June 1967
4.33   Coldest Month on Record: June 1951 51.5

Last 3 Months

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: Last Three Months Percent of Normal Precipitation Wyoming: Last 3 Months Departure from Normal Temperature
 Statewide Average (inches)
5.03
 Statewide Average (°F)  48.5
 20th Century Average 5.82
 20th Century Average 48.3
 Rank - Driest to Wettest (120 Years) 37th  Rank - Warmest to Coldest (120 Years)  60th
 Driest Period on Record: Apr - Jun 1919
2.91
 Warmest Period on Record: Apr - Jun 1988
53.1
 Wettest Period on Record: Apr - Jun 1957 9.32  Coldest Period on Record: Apr - Jun 1917 43.7

2014

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2014 Percent of Normal Precipitation Wyoming: 2014 Departure from Normal Temperature
 Statewide Average (inches)
 9.16
Statewide Average (°F) 36.8
 20th Century Average 9.10
20th Century Average 35.8
 Rank - Driest to Wettest (120 Years)  61st Rank - Warmest to Coldest (120 Years) 38th
 Driest Period on Record: Jan - Jun 1919 4.72
 Warmest Period on Record: Jan - Jun 1934
 41.5
 Wettest Period on Record: Jan - Jun 1995, 1899 12.70  Coldest Period on Record: Jan - Jun 1917 30.3

2013-2014 Water Year

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2013-2014 Water Year Percent of Normal Precipitation Wyoming: 2013-2014 Water Year Departure from Normal Temperature
 Statewide Average (inches)
13.40
 Statewide Average (°F) 34.4
 20th Century Average 12.34
 20th Century Average 34.1
 Rank - Driest to Wettest (120 Years)  84th  Rank - Warmest to Coldest (120 Years)  53rd
 Driest Periods on Record: Oct 1965 - Jun 1919
7.12
 Warmest Period on Record: Oct 1933 - Jun 1934
 39.7
 Wettest Period on Record: Oct 1994- Jun 1995  17.66   Coldest Period on Record: Oct 1916 - Jun 1917  28.6

Last 12 Months

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: Annual Percent of Normal Precipitation Wyoming: Annual Departure from Normal Temperature
 Statewide Average (inches)
18.50
 Statewide Average (°F) 41.8
 20th Century Average 15.94
 20th Century Average 40.8
 Rank - Driest to Wettest (120 Years) 15th  Rank - Warmest to Coldest (120 Years) 26th
 Driest Period on Record: Jul 1933 - Jun 1934 11.11
 Warmest Period on Record: Jul 1933 - Jun 1934
 45.3
 Wettest Period on Record: Jul 1994 - Jun 1995 20.33  Coldest Period on Record: Jul 1916 - Jun 1917 36.4

Last 5 Years (Jul 2009 - Jun 2014)

Precipitation - Percent of Normal Temperature - Departure from Normal
Map Not Available For This Period Map Not Available For This Period
 Statewide Average (inches)
78.68
 Statewide Average (°F) 42.0
 20th Century Average 79.51
 20th Century Average 40.7
 Rank - Driest to Wettest (120 Years) 57th
 Rank - Warmest to Coldest (120 Years) 13th
 Driest Period on Record: Jul 1999 - Jun 2004
65.21  Warmest Period on Record: Jul 2002 - Jun 2007
42.8
 Wettest Period on Record: Jul 1994 - Jun 1999 93.56  Coldest Period on Record: Jul 1912 - Jun 1917 39.0


 

 


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