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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  None 0.09 0.05 0.12   0.01              
  0.27
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    1.35
Percent of Normal 
 17  24  40    3              
   20
                               
Buffalo None 0.21
0.34 0.08    0.16                   0.79
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    2.29
  Percent of Normal   23  63  20    38              
   34
                               
Casper   None 1.05 0.81 1.25   0.52
                  3.63
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    2.87
  Percent of Normal   95  107  255    102                    126
Snowfall  3.2  10.6 17.8   6.4
                  38.0
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
  37.8
  Percent of Normal   43 103  162    70                    101
                               
Evanston   None 0.11 0.59 0.18   0.64                   1.52
  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    3.33
  Percent of Normal   9  57  31    119                    46
                               
Greybull   None 0.01 0.59 0.21   0.22                   1.03
  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    1.41
  Percent of Normal  2 197  75    96                   73
                               
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
                2.91
  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   3.14
  Percent of Normal   39  69  209    0                    93
Snowfall  T  8.9  21.1    0.3                   30.3
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
   40.6
  Percent of Normal   0  68 209    4                   75
                               
Riverton  None 0.16 0.42 0.65   0.03
                 1.26
  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    1.95
  Percent of Normal   18  84  203    13                   65
Snowfall  17.5  1.5
 6.8
                       12.5
                               
Rock Springs  None 0.32 0.13 0.11   0.01                   0.57
 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    2.31
  Percent of Normal  37  27 22    0.4                    25
                               
Sheridan   None
0.16
1.49  0.74   0.64                   3.03
  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    3.24
  Percent of Normal   11  210  132    114                    94
                               
Worland None 0.27 0.57  0.70   0.23
                 1.77
  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    1.50
  Percent of Normal   39  163  304    100                    118
                               
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  None 0.65 1.56 1.48   0.58
                4.27
  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   5.76
  Percent of Normal   40 105  118   41
                   74
Snowfall  0.2  13.9  24.2    9.6                   47.9
                               
Bitter Creek 4NE D0 0.17 0.53 0.34   0.09                   1.13
  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    1.76
  Percent of Normal   26  171 67    32                    64
                               
Cody  None 0.42 1.54 1.29   0.10
                3.35
  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    2.03
  Percent of Normal   47  321  391    30                    165
Snowfall  0.0  19.0  14.0    2.0                   35.0
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   26.4
  Percent of Normal  0  302  175    26                    133
                               
Dubois  None 0.40 1.00 0.69   0.15                  2.24
  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    1.90
  Percent of Normal  49  175  246    63                    118
Snowfall 1.0  13.5  16.5    2.0                   33.0
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   17.8
  Percent of Normal  33  233  324    51                   185
                               
Fossil Butte
National Monument
  None 0.52 0.55 0.78    0.23                    2.08
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    3.20
  Percent of Normal  47
 64  105   47                    65
Snowfall T
 7.8  10.7    2.2                    20.7
                               
Green River
 None 0.36 0.38 1.07   T
                   1.81
  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    2.00
  Percent of Normal  44  93  243   0
                   91
Snowfall 0.0
 T  9.8   T                    9.8
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   15.4
Percent of Normal
0  0  151   0                    64
                               
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                    1.53
  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    2.23
  Percent of Normal  12  36  288
  65
                   69
Snowfall 0.0  2.1  16.0   3.0                   18.1
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    24.0
  Percent of Normal  0  32 291   65
                   75
                               
Kaycee  None 0.51 0.56 0.77   0.32                    2.16
  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    2.22
  Percent of Normal  49  98  248
   107                    97
Snowfall T  8.5  10.0    3.5                   22.0
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   17.6
  Percent of Normal  0  202  167    59                   125
                               
Moose
  None 0.54  3.55 3.26   2.31                    9.66
  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    9.36
  Percent of Normal  37  134  122   90
                  103
Snowfall T  43.3  39.6    26.0                    108.9
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    110.5
  Percent of Normal  0  180  89    70                   99
                               
Old Faithful
 None 1.73 2.49 2.46   1.23                   7.91
  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
   9.22
  Percent of Normal   104  109 78    58                    86
Snowfall 2.0
 20.0  36.3    30.0                    88.3
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    120.7
  Percent of Normal  26
 63  83
   80                    73
                               
Powell Field Station
  None 0.22 0.43 0.10   0.04                    0.79
  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    1.08
  Percent of Normal  39 239 77    19                   73
Snowfall 0.0
 3.8  1.3
   0.3                   5.4
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                    90
                               
Riverton (downtown)
 None 0.18 0.41 0.55   0.04                   1.18
  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    1.78
  Percent of Normal  21  100 229    14                    66
Snowfall T
 7.8  7.4    0.7                   15.9
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   17.6
  Percent of Normal  0
 181  154
   15                   90
                               
Thermopolis   None 0.22 0.37 2.04   0.14                   2.77
  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    2.87
  Percent of Normal   17  46  443    40                    97
Snowfall 0.0
 9.0  23.0
   3.0                    35.0
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
  16.2
  Percent of Normal  0
243 511    54                    216

Drought Classifications on February 3, 2015     |      XX.X / M - Data partially or completely missing

Wyoming Climate      |      Click on Image to Enlarge
Statewide averages and ranks for periods including February 2015 will be available on March 6, 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)
0.53
 Statewide Average (°F) 25.0
 20th Century Average 1.06  20th Century Average 18.4
 Rank - Driest  to Wettest  (121 Years) 10th Rank - Warmest  to Coldest (121 Years)  9th
 Rank - Wettest to Driest (121 Years)  111th Rank - Coldest to Warmest (121 Years) 112th
 Driest Month on Record: January 1961
0.15   Warmest Month on Record: January 1953 29.1
 Wettest Year on Record: January 1909 2.17   Coldest Month on Record: January 1937 3.5

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)
3.41
 Statewide Average (°F) 25.6
 20th Century Average 3.10
 20th Century Average 22.7
 Rank - Driest  to Wettest  (120 Years)  86th Rank - Warmest  to Coldest (120 Years)  13th
 Rank - Wettest to Driest (120 Years) 35th Rank - Coldest to Warmest (120 Years) 108th
 Driest Period on Record: Nov 1930 - Janc 1931 1.34
 Warmest Period on Record: Nov 1980 - Jan 1981 29.7
 Wettest Period on Record: Nov 1942 - Jan 1943 5.43  Coldest Period on Record: Nov 1978 - Jan 1979 13.2

2015

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2015 Percent of Normal Precipitation Wyoming: 2014 Departure from Normal Temperature
 Statewide Average (inches)
0.53
Statewide Average (°F) 25.0
 20th Century Average 1.06
20th Century Average 18.4
 Rank - Driest  to Wettest  (121 Years)  10th Rank - Warmest  to Coldest (120 Years)  9th
 Rank - Wettest to Driest (121 Years) 111th
Rank - Coldest to Warmest (120 Years) 112th
 Driest Period on Record: January 1961 0.15
 Warmest Period on Record: January 1953
29.1
 Wettest Period on Record: January 1909 2.17  Coldest Period on Record: January 1937
3.5

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)
3.98
 Statewide Average (°F) 30.9
 20th Century Average 4.30
 20th Century Average 27.7
 Rank - Driest  to Wettest  (120 Years) 49th Rank - Warmest  to Coldest (120 Years)  8th
 Rank - Wettest to Driest (120 Years) 72nd
Rank - Coldest to Warmest (120 Years) 113th
 Driest Periods on Record: Oct (1933,1976) - Jan (1934,1977)
2.28
 Warmest Period on Record: Oct 1933 - Jan 1934  33.5
 Wettest Period on Record: Oct 1942 - Jan 1943  7.35   Coldest Period on Record: Oct 1978 - Jan 1979 20.9

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)
17.73
 Statewide Average (°F) 42.1
 20th Century Average 15.93
 20th Century Average 40.8
 Rank - Driest  to Wettest  (120 Years)  95th Rank - Warmest  to Coldest (120 Years)  24th
 Rank - Wettest to Driest (120 Years) 26th Rank - Coldest to Warmest (120 Years)  97th
 Driest Period on Record: Feb 2012 - Jan 2013
10.78  Warmest Period on Record: Feb 2012 - Jan 2013
 44.4
 Wettest Period on Record: Feb 1995 - Jan 1996 20.83  Coldest Period on Record: Feb 1929 - Jan 1930 37.8

Last 5 Years (Feb 2010 - Jan 2015)

Precipitation - Percent of Normal Temperature - Departure from Normal
Map Not Available For This Period Map Not Available For This Period
 Statewide Average (inches)
81.16
 Statewide Average (°F) 42.3
 20th Century Average 79.51
 20th Century Average 40.7
 Rank - Driest  to Wettest  (120 Years)  76th Rank - Warmest  to Coldest (120 Years)  9th
 Rank - Wettest to Driest (120 Years) 41st Rank - Coldest to Warmest (120 Years) 108th
 Driest Period on Record: Feb 2000 - Jan 2005
67.65  Warmest Period on Record: Feb 2003 - Jan 2008
42.8
 Wettest Period on Record: Feb 1995 - Jan 2000 91.18  Coldest Period on Record: Feb (1895,1912) - Jan (1900, 1917) 39.2


 

 


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