2012 Climate Summary for Downtown Riverton
  • Warmest Year on Record (1907-2012)
    • Second Highest Number of Days with Maximum >= 90°
    • Second Highest Number of Consecutive Days with Maximum >= 90°
    • Warmest March on Record
    • Tied for Warmest July on Record
  • Second Driest Year on Record
Temperature °F   Precipitation   Snowfall
 
Temperature °F
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Average High  38.6 39.0 60.2 66.8 70.5 86.4 93.2 89.4 79.1 59.5 48.2 34.3 63.8
 Average Low 13.0  14.9 27.5 35.1 40.5 50.6  59.1 54.3 43.6 31.8 21.5 7.1 33.3
 Average Temp 25.8 27.0 43.9 51.0 55.5 68.5  76.2 71.9 61.4 45.7 34.9 20.7  48.6
 Departure from Normal  7.2 2.8 7.8 5.6 0.9 4.7  5.1 2.9 3.2 0.7 4.6 3.3 4.1
 Rank - Top 10 Warmest or Coldest only (P.O.R. 1907-2012)  *4  NA  1   3 
NA  4 
 **1  ***4  9  NA NA NA  1 
 Highest Daily Maximum  56 57 77 87 88 101  101 97 86 83 68 62 101
 Date of Occurrence  25 22 23 23 16 24  1 29 1,4,9,10 2 6 2 6/24, 7/1
 Lowest Daily Minimum -6 4 10 22 28 39  53 44 32 19 0  -19  -19
 Date of Occurrence 12 29 2 7, 8 6, 7, 8 21 1, 27 19,26 13 27 12 31 12/31
 Number of Days with:                          
    Maximum >= 90° 0 0 0 0 0 13  27 18 0 0 0 0 58
    Maximum <= 32° 8 4 0 0 0 0  0 0 0  0 3 17 32
    Minimum <= 32° 31 29 22 14 3 0  0 0 15  27 31 173
    Minimum <= 0°  2 0 0 0 0 0  0 0 0 1 8 11
 Record Highs Set or Tied 0 0 4 3 0 1 0 1 0 0 0 1 10
 Record Lows Set or Tied 0 0  0  0 0 0 0 0 0 0 0 0 0
1981-2010 Normals

 * January 2012 tied for 4th warmest with January 2000

 ** July 2012 tied the warmest on record with July 2006

*** August 2012 tied for 4th warmest with August 2011

Records set during 2012:

Temperatures (degrees F):

Top 5 Warmest Years in Downtown Riverton
Rank Year Average Temperature °F
1 2012 48.6
2 2006 47.1
3 1934 47.0
4 2007 46.5
5 2005 46.4
 

Downtown Riverton had the 2nd highest number of 90 degree high temperature days in 2012 with 58.   The record is 71 days set in   1988.   A streak of 17 consecutive 90 degree high temperature days occurred from July 8th through July 24th.   That was 3 days shy of the all-time record, 20 days, set in 1945, from July 16th through August 4th.


Max

March: 77 on the 23rd,  73 on the 24th , 76 on the 25th, and  78 on the 31st (Tied All-time record high for March ).
April:  82 on the 11th ( Warmest high temperature for so early in the season) , 87 on the 23rd (Tied All-time record high for April), 86 on the 24th.
June: 101 on the 24th (tie).
August: 97 on the 29th.
December: 62 on the 2nd.

Min:   

None. 

 
 
Precipitation
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches) 0.19 0.36 0.08 0.40 1.18 T 0.30 0.03 0.21 0.36 0.52 0.35 3.98
 Departure from Normal -0.09 0.03 -0.48 -0.58 -0.27 -1.21 -0.48 -0.47 -0.62 -0.49 0.11 0.11 -4.44
 Percent of Normal 68 109 14 41 81 0 38 6 25 42 127 146 47

 Rank - Top 12 Driest or Wettest only

NA NA
    *8 
 NA NA  **2 
NA ***12 NA NA NA NA   2 
 Greatest 24-HR Total 0.13 0.25 0.08 0.25 0.42 T 0.12 0.03 0.15 0.12 0.47 0.19 0.47
 Dates of Occurrence 21 27-28 6-7 1-2 18 & 25-26 4 & 9 22 1 10 5-6 9-10 26-27 11/9 -11/10
 Number of Days with:                          
    Precipitation >= 0.01 2 5 1 3 6 0 4 1 4 5 3 4 38
    Precipitation >= 0.10 1 1  0 2 3 0 1 0 1 1 1 2 13
    Precipitation >= 1.00 0 0  0 0 0 0 0 0 0 0 0 0 0
 Days with Thunderstorms 0 0 0 2 1 2 7 3 1 0 0 0 16
Daily Precipitaton Records Set or Tied 0 0 0 0 0 0 0 0 0 0 0 0 0

 * March 2012 tied for 8th driest with March 2011 and March 1921    

** June 2012 tied for 2nd driest with June 1942   

*** August 2012 tied for 12th driest with August 1970

Records set during 2012: 

Precipitation:

Top 5 Driest Years in Downtown Riverton
Rank Year Total (inches)
1 1988 3.75
2 2012 3.98
3 1974 4.12
4 1954 4.85
5 2006 & 2001 5.07

 One day Precipitation:

None.
 
 
Snowfall
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches) 0.8 5.5 1.5 0.4 T 0.0 0.0 0.0 0.0 3.2 3.5 6.1 21.0
 Average Snowfall 4.8 6.0 5.9 6.1 1.2 T 0.0 0.0 0.3 3.7 4.3 4.8 37.1
 Departure from Normal -4.0 -0.5 -4.4 -5.7 -1.2 0.0 0.0 0.0 -0.3 -0.5 -0.8 1.3 -16.1
Rank - Only for TOP 10 Snowiest NA NA NA NA NA NA NA NA NA NA NA NA NA
 Greatest 24-HR Total 0.8 3.3 1.5 0.2 T 0.0 0.0 0.0 0.0 2.2 2.2 3.5 3.5
 Dates of Occurrence 24 27-28 6-7 1-2 & 15-16 18 NA NA NA NA 5-6 9-10 24-25 12/24-12/25
 Number of Days with:                          
    Snowfall >= 1.0 inch 0 2 1 0 0 0 0 0 0 2 2 2 9
Daily Snowfall Records Set or Tied 0 0 0 0 0 0 0 0 0 0 0 0 0
             
Records set during 2012:

 
Snowfall: 

One day Snowfall:

None.
 
 
 


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