Home ►  Climate ►  Drought  ►  Climate Summaries

Navigation Menu

Climate Summaries

2014-2015 Water Year Precipitation and Percent of Normal for Selected Stations

Station Name:
Airports
Drought
Conditions

Oct
2014
Nov
2014
Dec
2014
  Jan
2015
Feb
2015
Mar
2015
Apr
2015
May
2015
Jun
2015
Jul
2015
Aug
2015
Sep
2015
  Total for
Water Year
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Big Piney  D0 0.09 0.05 0.12   0.01 0.05            
  0.32
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    1.70
Percent of Normal 
 17  24  40    3  14            
   19
                               
Buffalo None 0.21
0.34 0.08    0.16 0.48                 1.27
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    2.64
  Percent of Normal   23  63  20    38  137            
   48
                               
Casper   None 1.05 0.81 1.25   0.52
0.79                 4.42
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    3.44
  Percent of Normal   95  107  255    102 139                  128
Snowfall  3.2  10.6 17.8   6.4
 12.4                 50.4
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
  47.6
  Percent of Normal   43 103  162    70  127                  106
                               
Evanston   D0 0.11 0.59 0.18   0.64 0.37                 1.89
  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    3.94
  Percent of Normal   9  57  31    119  61                  48
                               
Greybull   None 0.01 0.59 0.21   0.22 0.04                 1.07
  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    1.59
  Percent of Normal  2 197  75    96 22                 67
                               
Station Name:
Airports
Drought
Conditions

Oct
2014
Nov
2014
Dec
2014
  Jan
2015
Feb
2015
Mar
2015
Apr
2015
May
2015
Jun
2015
Jul
2015
Aug
2015
Sep
2015
  Total for
Water Year
Lander  None 0.50 0.59 1.82   T
1.56               4.47
  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   3.72
  Percent of Normal   39  69  209    0  269                  120
Snowfall  T  8.9  21.1    0.3  23.6                 53.9
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
   50.9
  Percent of Normal   0  68 209    4  229                 106
                               
Riverton  None 0.16 0.42 0.65   0.03
1.04                2.30
  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    2.22
  Percent of Normal   18  84  203    13  385                 104
Snowfall  17.5  1.5
 6.8
   0.4  15.8                  28.3
                               
Rock Springs  D1 0.32 0.13 0.11   0.01 0.08                 0.65
 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    2.79
  Percent of Normal  37  27 22    0.4  17                  23
                               
Sheridan   None
0.16
1.49  0.74   0.64 1.28                 4.31
  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    3.78
  Percent of Normal   11  210  132    114  237                  114
                               
Worland None 0.27 0.57  0.70   0.23
0.54                2.31
  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    1.69
  Percent of Normal   39  163  304    100  284                  137
                               
Station Name:
COOPS
Drought
Conditions

Oct
2014
Nov
2014
Dec
2014
  Jan
2015
Feb
2015
Mar
2015
Apr
2015
May
2015
Jun
2015
Jul
2015
Aug
2015
Sep
2015
  Total for
Water Year
                               
                               
Afton D0 0.65 1.56 1.48   0.58
0.88               5.15
  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   6.85
  Percent of Normal   40 105  118   41
 81                  75
Snowfall  0.2  13.9  24.2    9.6  6.5                 54.4
                               
Bitter Creek 4NE D1 0.17 0.53 0.34   0.09 0.13                 1.26
  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    2.12
  Percent of Normal   26  171 67    32 36                  59
                               
Cody  None 0.42 1.54 1.29   0.10
0.87               4.22
  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    2.36
  Percent of Normal   47  321  391    30  264                  1.79
Snowfall  0.0  19.0  14.0    2.0  7.0                 42.0
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   33.1
  Percent of Normal  0  302  175    26  104                  127
                               
Dubois  None 0.40 1.00 0.69   0.15 0.46                2.70
  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    2.28
  Percent of Normal  49  175  246    63  121                  118
Snowfall 1.0  13.5  16.5    2.0  10.6                 43.6
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   23.5
  Percent of Normal  33  233  324    51  186                 186
                               
Fossil Butte
National Monument
  D0 0.52 0.55 0.78    0.23 0.51
                 2.59
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    3.88
  Percent of Normal  47
 64  105   47  75                  67
Snowfall T
 7.8  10.7    2.2  4.3                  25.0
                               
Green River
 D1 0.36 0.38 1.07   T
0.30                  2.11
  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    2.43
  Percent of Normal  44  93  243   0
 70                  87
Snowfall 0.0
 T  9.8   T  2.0                  11.8
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   22.7
Percent of Normal
0  0  151   0  27                  52
                               
Station Name:
COOPS
Drought
Conditions

Oct
2014
Nov
2014
Dec
2014
  Jan
2015
Feb
2015
Mar
2015
Apr
2015
May
2015
Jun
2015
Jul
2015
Aug
2015
Sep
2015
  Total for
Water Year
Jeffrey City  None 0.11 0.21 1.21   0.20 0.40                  2.13
  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    2.64
  Percent of Normal  12  36  288
  65
 98                  81
Snowfall 0.0  2.1  16.0   3.0  7.0                 28.1
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    30.7
  Percent of Normal  0  32 291   65
 104                  92
                               
Kaycee  None 0.51 0.56 0.77   0.32 0.87                  3.03
  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    2.56
  Percent of Normal  49  98  248
   107  256                  118
Snowfall T  8.5  10.0    3.5  12.0                 34.0
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   23.9
  Percent of Normal  0  202  167    59  190                 142
                               
Moose
  D0 0.54  3.55 3.26   2.31 1.57                  11.23
  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    11.18
  Percent of Normal  37  134  122   90
 86                 100
Snowfall T  43.3  39.6    26.0  19.1                  128.0
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    137.1
  Percent of Normal  0  180  89    70  72                 93
                               
Old Faithful
 D0 1.73 2.49 2.46   1.23 0.75                 8.66
  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
   11.21
  Percent of Normal   104  109 78    58  38                  77
Snowfall 2.0
 20.0  36.3    30.0  6.0                  94.3
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    151.8
  Percent of Normal  26
 63  83
   80  19                  62
                               
Powell Field Station
  None 0.22 0.43 0.10   0.04 0.03                  0.82
  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    1.21
  Percent of Normal  39 239 77    19  23                 68
Snowfall 0.0
 3.8  1.3
   0.3  0.3                 5.7
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
  6.0
  Percent of Normal  0
 292  108    13  60                  88
                               
Riverton (downtown)
 None 0.18 0.41 0.55   0.04 1.28                 2.46
  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    2.11
  Percent of Normal  21  100 229    14  388                  117
Snowfall T
 7.8  7.4    0.7  17.8                 33.7
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   23.6
  Percent of Normal  0
 181  154
   15  297                 143
                               
Thermopolis   None 0.22 0.37 2.04   0.14 0.92                 3.69
  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    3.32
  Percent of Normal   17  46  443    40  204                  111
Snowfall 0.0
 9.0  23.0
   3.0  3.5                  38.5
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
  20.8
  Percent of Normal  0
243 511    54  76                  185

Drought Classifications on March 24, 2015     |      XX.X / M - Data partially or completely missing

Wyoming Climate      |      Click on Image to Enlarge
Statewide averages and ranks for periods including March 2015 will be available on April 8, 2015*
* 2015 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)
1.00
 Statewide Average (°F) 29.1
 20th Century Average 0.97  20th Century Average 22.3
 Rank - Driest  to Wettest  (121 Years)  74th Rank - Warmest  to Coldest (121 Years) 7th
 Rank - Wettest to Driest (121 Years) 48th
Rank - Coldest to Warmest (121 Years) 115th
 Driest Month on Record: February 1970, 1977 (tie)
0.39   Warmest Month on Record: February 1954 32.0
 Wettest Year on Record: February 1899, 1986 (tie)
2.29   Coldest Month on Record: February 1899 9.1

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)
3.05
 Statewide Average (°F) 26.4
 20th Century Average 3.04  20th Century Average 20.4
 Rank - Driest  to Wettest  (120 Years)  65th Rank - Warmest  to Coldest (120 Years)  3rd
 Rank - Wettest to Driest (120 Years) 56th Rank - Coldest to Warmest (120 Years) 118th
 Driest Period on Record: Dec 1930 - Feb 1931 1.25
 Warmest Period on Record: Dec 1980 - Feb1981 28.0
 Wettest Period on Record: Dec 1888 - Feb 1899 4.93  Coldest Period on Record: Dec 1978 - Feb 1979 11.9

2015

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2015 Percent of Normal Precipitation Wyoming: 2014 Departure from Normal Temperature
 Statewide Average (inches)
1.59
Statewide Average (°F) 27.3
 20th Century Average 2.03
20th Century Average 20.3
 Rank - Driest  to Wettest  (121 Years)  25th Rank - Warmest  to Coldest (121 Years)  3rd
 Rank - Wettest to Driest (121 Years) 97th
Rank - Coldest to Warmest (121 Years) 119th
 Driest Period on Record: Jan - Feb 1931 0.92
 Warmest Period on Record: Jan - Feb 1954
27.5
 Wettest Period on Record: Jan - Feb 1899 4.32  Coldest Period on Record: Jan - Feb 1949
10.4

2014-2015 Water Year

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2014-2015 Water Year Percent of Normal Precipitation Wyoming: 2014-2015 Water Year Departure from Normal Temperature
 Statewide Average (inches)
5.07
 Statewide Average (°F) 30.6
 20th Century Average 5.27
 20th Century Average 26.6
 Rank - Driest  to Wettest  (120 Years)  50th Rank - Warmest  to Coldest (120 Years)  5th
 Rank - Wettest to Driest (120 Years) 71st
Rank - Coldest to Warmest (120 Years) 116th
 Driest Periods on Record: Oct 1976 - Feb 1977
2.67
 Warmest Period on Record: Oct 1933 - Feb 1934  32.6
 Wettest Period on Record: Oct 1942 - Feb 1943  8.17   Coldest Period on Record: Oct 1916 - Feb 1917 21.3

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)
17.29  Statewide Average (°F) 43.0
 20th Century Average 15.93
 20th Century Average 40.8
 Rank - Driest  to Wettest  (120 Years)  87th Rank - Warmest  to Coldest (120 Years)  10th
 Rank - Wettest to Driest (120 Years)  34th Rank - Coldest to Warmest (120 Years) 111th
 Driest Period on Record: Mar 2012 - Feb 2013
10.28  Warmest Period on Record: Mar 2012 - Feb 2013
 44.4
 Wettest Period on Record: Mar 1995 - Feb 1996 20.69  Coldest Period on Record: Mar 1912 - Feb 1913 37.3

Last 5 Years (Mar 2010 - Feb 2015)

Precipitation - Percent of Normal Temperature - Departure from Normal
Map Not Available For This Period Map Not Available For This Period
 Statewide Average (inches)
81.67
 Statewide Average (°F) 42.5
 20th Century Average 79.50
 20th Century Average 40.7
 Rank - Driest  to Wettest  (120 Years)  77th Rank - Warmest  to Coldest (120 Years)  6th
 Rank - Wettest to Driest (120 Years) 40th Rank - Coldest to Warmest (120 Years) 111th
 Driest Period on Record: Mar 2000 - Feb 2005
67.02  Warmest Period on Record: Mar 2003 - Feb 2008
42.8
 Wettest Period on Record: Mar 1995 - Feb 2000 91.44  Coldest Period on Record: Mar (1895, 1912) - Feb (1900, 1917) 39.2


 

 


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.