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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
0.44
1.60
1.16
  5.40
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    6.48
Percent of Normal 
 74  138  63    6  6  27  47 88
 23  62  232 149
   83
                               
Buffalo None 2.25
0.12 0.24   0.21
0.15 0.61 1.11 1.68 2.91  0.94 2.60 1.10   13.92
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    13.45
  Percent of Normal   242  22  60    50 43  66  85  66 128 57  321 84
   103
                               
Casper   None 3.03 0.24 1.20    0.74 0.74 1.64 1.15 0.49 1.35  1.17  1.10 0.64   13.49
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    12.52
  Percent of Normal   273  32  245    145  130  200  89  24  84  83  129  59    108
Snowfall  16.4  3.6 15.7    14.2  11.5  18.7  5.8  0.9  0.0  0.0  0.0  1.0   87.8
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
  74.9
  Percent of Normal   222  35  143    156  117  172  50  31  0  0  0  56    117
                               
Evanston   None 0.96 0.18 0.06    0.03 T
0.08 0.22 0.84 1.20 0.99 2.25 3.52   10.33
  1981-2010 Normals 1.17 1.04 0.58   0.54 0.61 0.86 1.15 1.77 1.24 0.90 0.96 1.31    12.13
  Percent of Normal   82  17  10    6  0  9  19  47  97  110  234  269    85
                               
Greybull   None 1.12 T 0.03    0.04 0.22 0.18 0.71 0.55 0.94
0.21 1.01 0.86   5.87
  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    7.51
  Percent of Normal   187 0  11    17  122  45  100  33  78  32  240  98    78
                               
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 0.62 1.61 1.79   12.71
  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   12.66
  Percent of Normal   239  15  119    149  33  102  37  69 47 79 264  170    100
Snowfall  21.9  3.5  13.1    8.9  3.8  13.9  4.3  2.2  0.0 0.0 0.0  T   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
   91.4
  Percent of Normal   223  27  130    117  37  86  26  46  0  0  0  0   78
                               
Riverton  None 1.94 0.03 0.28    0.68 0.22 0.50 0.22 0.70 1.12 0.78 1.15 0.81    8.43
  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    9.43
  Percent of Normal   218  6  88    283  81  91  17  41  88  88  202  90    89
Snowfall  17.5  1.5
 6.8
   11.1  5.0  3.4  0.5  2.7  0.0 0.0  0.0  0.3    48.8
                               
Rock Springs  None 0.86 0.03 0.18    0.07 0.08 0.43 0.24
0.49 0.29 0.36 0.52 1.20   4.75
 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    8.56
  Percent of Normal   99  6  36    16  17  63  26  40  37  56 84 130    55
                               
Sheridan   None
2.47
0.17  1.12    0.64 1.21 1.69 1.54 1.73 2.20 1.01 1.05 1.63   16.46
  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    14.16
  Percent of Normal   175  24  200    114  224  172  96  74  104  86  146  114    116
                               
Worland None 1.78 0.12  0.12    0.25 0.13 0.40 0.29 1.14 1.62  0.25 1.51 1.13    8.74
  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    7.57
  Percent of Normal   258  34  52    109  68  87  34  80  141  35 351  133    115
                               
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 0.46 3.30 3.44   20.62
  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   18.16
  Percent of Normal   183 48  74    83  220  109  105 32  70  32  264  236    114
Snowfall  6.5  8.5  12.3    17.3  29.0  11.3  4.8  1.0  0.0  0.0  0.0  0.0   90.7
                               
Bitter Creek 4NE None 0.97 0.05 0.39    0.27 0.35 0.68 0.20 0.58 0.11  0.33 2.23 1.61   7.77
  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    6.94
  Percent of Normal   147  16  76    96  97  227  31 53  16  55 297  221    112
                               
Cody  None 1.41 0.30 0.42    0.93 1.78 0.55 2.52 1.25 2.69 0.27 2.30 1.05   15.47
  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    10.56
  Percent of Normal   158  63  127    282  539  98  238 69  160  24  253  99    146
Snowfall  7.0  4.0  6.5    20.0  29.0  3.3  12.0 0.0  0.0  0.0  0.0  4.0   85.8
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   47.3
  Percent of Normal  163  63  81    256  433  48  190  0  0  0  0  2000    181
                               
Dubois  None 3.23 0.37 0.35   0.35
1.12  0.64 0.61 1.55 1.01  1.40  1.77 1.76    14.16
  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    9.91
  Percent of Normal  399
 65  125
   146  295  160  55  95  79  126  206  142    143
Snowfall 19.5  5.0  8.0    7.2  25.6  13.6  6.0  10.5 T  0  0  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   45.1
  Percent of Normal  650  86  157    185  449  227  71  269  0  0  0  0   212
                               
Fossil Butte
National Monument
  None 2.14 0.43 1.08    0.39 1.35 0.71 0.58 1.04 1.69  1.23 3.41 3.73    17.78
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    11.00
  Percent of Normal  193
 50  146    80  199  87  59  74 164  145 367  339    162
Snowfall 6.5
 6.8  14.8    8.4  20.5  8.7  6.6  3.5 T  0.0 0.0  0.0    76.3
                               
Green River
 None 3.10 0.15 1.10    0.05 0.35
1.05 0.40 1.35 0.57 1.21  2.10 2.37    13.80
  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    8.33
  Percent of Normal  383  37  250    15  81  148  47  110 58  220 309  263    166
Snowfall 10.5
 1.8  10.5    1.6  3.5  2.5  1.0  3.0 T  0.0  0.0  0.0    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  0  0  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  0.47 2.83 0.79    11.38
  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    10.06
  Percent of Normal  229  29  171
   126  32  131  50  79  45  53  472  99    113
Snowfall 14.0  2.0  9.0    5.0  2.0  14.0  6.0  10.0  0.0  0.0 0.0  T   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    57.0
  Percent of Normal  192  30  164    109  30  149  59  204  0  0  0  0    106
                               
Kaycee  None 3.01 0.30 0.48    0.16 0.38  0.71 1.39 0.16 2.60  1.05 2.70 0.85    13.79
  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    12.37
  Percent of Normal  289  53  155
   53  112  96  95  7  141 74  338  72    111
Snowfall 11.5  5.0  9.5    3.2  7.1  2.0  0.1  0.0  0.0 0.0  0.0  0.1   38.5
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   37.5
  Percent of Normal  767  119  158    54  113  25  2  0  0  0  0  50   103
                               
Moose
  None 1.51  1.54 2.40    1.78 4.48 4.77 1.72 0.60 2.05 0.91 2.61 2.13    26.50
  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    21.80
  Percent of Normal  103  58  90    69  246  294  115 32  127 71 202  148    122
Snowfall 6.0  12.4  26.5    29.8  48.3  49.5  8.3  0.0  0.0 0.0 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    162.8
  Percent of Normal  125  51  59    81 182
 311  112  0  0  0  0  0   111
                               
Old Faithful
 None 1.23 2.47 2.05    1.89 2.90 6.43 3.05  2.44 3.21 0.37 4.00  2.20   32.24
  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
   25.37
  Percent of Normal   74  108 65
   90 146
291  138  87  130  24  274  151    127
Snowfall 9.0
 13.5  23.5
  21.0
46.0  76.5  20.0  1.2  0.6  0.0  0.0  0.0    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    207.8
  Percent of Normal  117
 43  54
   56 148  285  104  16  50  0  0  0    102
                               
Powell Field Station
  None 0.66 0.07 0.08    0.18 0.65 0.15 1.29 0.26 1.59 0.29 1.17 0.45    6.84
  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    6.80
  Percent of Normal  118 39 62
  86  500  52  253 19  118  33  225  69   101
Snowfall 0.5
 2.0  3.0
   3.0  10.7  1.0  3.0  0.0  0.0  0.0  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
  10.1
  Percent of Normal  42
 154  250
   130 2140  40  600  0  0  0  0  0    230
                               
Riverton (downtown)
 None 1.72 0.04 0.31   0.63
0.14 0.49 0.32 1.07 1.62 0.64 1.11 0.85   8.94
  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    8.42
  Percent of Normal  202
 10 129
   225 42  88  33 74  134  82  222  102    106
Snowfall 9.5
 1.1  5.9
   10.1  4.9 5.5  2.9  2.5  T  0.0  0.0  0.3   42.7
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   37.1
  Percent of Normal  257
 26  123
   210  82  93  48  208  0  0  0  100   115
                               
Thermopolis   None 2.82 0.22 0.46    0.46 0.20  0.54 0.51 0.99 1.38  0.27 2.74 1.75    12.34
  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    11.71
  Percent of Normal   224  28  100    131  44  62  35  53  91  31 472  142    105
Snowfall 9.0
 4.0  10.0
   6.5  4.5  1.0  5.0  0.0  0.0  0.0  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
  26.7
  Percent of Normal  375
108 222
   116  98  40  179  0  0  0 0  0    150

Drought Classifications on October 7, 2014     |      XX.X / M - Data partially or completely missing

Wyoming Climate      |      Click on Image to Enlarge
Statewide averages and ranks for periods including October 2014 will be available on November 13, 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)
1.89
 Statewide Average (°F) 55.6
 20th Century Average 1.24  20th Century Average 53.6
 Rank - Driest to Wettest (120 Years) 105  Rank - Warmest to Coldest (120 Years) 32
 Driest Month on Record: September 1979
0.26   Warmest Month on Record: September 1998
59.9
 Wettest Year on Record: September 1923
3.44   Coldest Month on Record: September 1965 44.6

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)
5.49
 Statewide Average (°F) 61.3
 20th Century Average 3.59
 20th Century Average 60.7
 Rank - Driest to Wettest (120 Years) 113  Rank - Warmest to Coldest (120 Years)  47
 Driest Period on Record: Jul - Sep 1964
1.65
 Warmest Period on Record: Jul - Sep 2001 64.8
 Wettest Period on Record: Jul - Sep 1923 7.19  Coldest Period on Record: Jul - Sep 1912 55.9

2014

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2014 Percent of Normal Precipitation Wyoming: 2014 Departure from Normal Temperature
 Statewide Average (inches)
14.65
Statewide Average (°F) 44.9
 20th Century Average 12.70
20th Century Average 44.1
 Rank - Driest to Wettest (120 Years)  100 Rank - Warmest to Coldest (120 Years) 39
 Driest Period on Record: Jan - Sep 1919 7.35
 Warmest Period on Record: Jan - Sep 2012
 48.8
 Wettest Period on Record: Jan -Sep 1915, 1945 (tie) 16.47  Coldest Period on Record: Jan - Sep 1917 40.4

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)
18.89
 Statewide Average (°F) 41.1
 20th Century Average 15.94
 20th Century Average 40.8
 Rank - Driest to Wettest (120 Years)  109  Rank - Warmest to Coldest (120 Years)  53
 Driest Periods on Record: Oct 1918 - Sep 1919
9.75
 Warmest Period on Record: Oct 1933 - Sep 1934
 45.0
 Wettest Period on Record: Oct 1994- Sep 1995  21.35   Coldest Period on Record: Oct 1916 - Sep 1917  36.6

Last 12 Months

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: Last 12 Months Percent of Normal Precipitation Wyoming: Last 12 Months Departure from Normal Temperature
 Statewide Average (inches)
18.89
 Statewide Average (°F) 41.1
 20th Century Average 15.94
 20th Century Average 40.8
 Rank - Driest to Wettest (120 Years) 109  Rank - Warmest to Coldest (120 Years) 53
 Driest Period on Record: Oct 1918 - Sep 1919 9.75
 Warmest Period on Record: Oct 1933 - Sep 1934
 45.0
 Wettest Period on Record: Oct 1994 - Sep 1995 21.35  Coldest Period on Record: Oct 1916 - Sep 1917 36.6

Last 5 Years (Oct 2009 - Sep 2014)

Precipitation - Percent of Normal Temperature - Departure from Normal
Map Not Available For This Period Map Not Available For This Period
 Statewide Average (inches)
80.91
 Statewide Average (°F) 42.0
 20th Century Average 79.56
 20th Century Average 40.7
 Rank - Driest to Wettest (120 Years) 72
 Rank - Warmest to Coldest (120 Years) 14
 Driest Period on Record: Oct 1999 - Sep 2004
66.48  Warmest Period on Record: Oct 2002 - Sep 2007
42.9
 Wettest Period on Record: Oct 1994 - Sep 1999 94.28  Coldest Period on Record: Oct 1912 - Sep 1917 39.2


 

 


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