2013 Climate Summary for Downtown Riverton
  • Average Temperture for 2013 ended up Normal for the Year
    • 2013 Tied for Third Highest Number of Days with Maximum >= 90
    • June through September very warm months
    •  January, April, and October very cold months
  •  Precipitation for 2013 Above Normal despite Very Dry Summer Months
  • Snowfall in 2013 Well Above Average
Temperature °F   Precipitation   Snowfall
 
Temperature °F
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Average High  23.4 36.2 50.0 53.4 70.6 84.7 91.5 89.8 74.4 52.8 45.8 28.1 58.4
 Average Low -0.6  10.3 23.1 27.0 42.4 50.4  57.4 56.1 48.6 29.6 18.6 3.8 30.6
 Average Temp 11.4 23.3 36.6 40.2 56.5 67.6  74.5 73.0 61.5 41.2 32.2 16.0 44.5
 Departure from Normal -7.2 -0.9 +0.5 -5.2 +1.9 +3.8  +3.4 +4.0 +3.3 -3.8 +1.9 -1.4 0.0
 Rank - Top 12 Warmest or Coldest only (P.O.R. 1907-2013) NA NA NA 11 NA 6* 7** 2*** 8**** NA NA NA NA
 Highest Daily Maximum  45 49 71 77 89 97 98 97 95 72 62 58 98
 Date of Occurrence  24 4 15 27 13 27  11 19 5 1 10 18  7/11
 Lowest Daily Minimum -23 -13 8 7 21 38  51 47 29 15 -2  -18  -23
 Date of Occurrence 14 12 25 10 2 5 29 14 28 5 22 5 1/14
 Number of Days with:                          
    Maximum >= 90° 0 0 0 0 0 12  22 17 3 0 0 0 54
    Maximum <= 32° 20 7 4 5 0 0  0 0 0  2 4 21 63
    Minimum <= 32° 31 28 28 23 3 0  0 0 2 22  30 31 198
    Minimum <= 0°  16 3 0 0 0 0  0 0 0 0 1 14 34
 Record Highs Set or Tied 0 0 2 0 0 1 0 1 1 0 0 1 6
 Record Lows Set or Tied 0 0  0  1 0 0 0 0 0 1 0 0 2
1981-2010 Normals

   April 2013 was the 11th coldest on record.

* June 2013 was the 6th warmest on record.

** July 2013 was the 7th warmest on record.

***August 2013 was tied for second warmest on record with August 2000.

**** September 2013 was the 8th warmest on record.

Records set during 2013:

Temperatures (degrees F):

 

Downtown Riverton tied the 3rd highest number of 90 degree high temperature days in 2013 with 54.  2007 also had 54 days of 90 degree days.  The record is 71 days set in   1988.  


Max

March: 69 on the 14th tied record high, last set in 2003,   71 on the 15th.
June:  96 on the 10th. 
August:  97 on the 19th. 
September:  95 on the 5th tied record high, last set in 1908.
December: 58 on the 18th.

Min:   

April: 7 on the 10th 

October: 15 on the 5th

 
 
Precipitation
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches) 0.21 0.45 0.17 1.48 1.54 0.02 0.38 0.05 3.09 1.72 0.04 0.31 9.46
 Departure from Normal -0.07 +0.12 -0.39 +0.50 +0.09 -1.19 -0.40 -0.45 +2.26 +0.87 -0.37 +0.07 +1.28
 Percent of Normal 75 136 30 151 106 2 49 10 372 202 10 129 116

 Rank - Top 10 Driest or Wettest only

NA NA
NA  
 NA NA 4*
NA NA 5** NA 10*** NA NA
 Greatest 24-HR Total 0.11 0.27 0.08 0.78 0.57 0.02 0.19 0.03 1.55 0.70 0.04 0.11 1.55
 Dates of Occurrence 11-12 8-9 23-24 8-9 18-19 22 3 10 26-27 3-4 20-21 19-20 9/26-9/27
 Number of Days with:                          
    Precipitation >= 0.01 5 5 4 8 11 1 6 2 10 7 1 6 66
    Precipitation >= 0.10 1 2  0 4 4 0 2 0 5 3 0 1 24
    Precipitation >= 1.00 0 0  0 0 0 0 0 0 1 0 0 0 1
 Days with Thunderstorms 0 0 0 0 4 4 9 3 8 0 0 0 28
Daily Precipitaton Records Set or Tied 0 1 0 0 0 0 0 0 0 0 0 0 0

 * June 2013 was the 4th driest on record.    

** September 2013 was the 5th wettest on record.  

*** November 2013 was tied for 10th driest on record with November 1988.

Records set during 2013: 

Precipitation:

 One day Precipitation:

The 24 hour precipitation (7 AM to 7 AM) of 0.27 inches for February 8th-9th was a new record.

  

 
 
Snowfall
Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
 Total (inches) 3.8 8.9 4.3 24.7 6.7 0.0 0.0 0.0 5.7 9.5 1.1 5.9 70.6
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 -1.0 +2.9 -1.6 +18.6 +5.5 0.0 0.0 0.0 +5.4 +5.8 -3.2 +1.1  +33.5
Rank - Only for TOP 10 Snowiest NA 2 NA 3 6 NA NA NA 2 NA NA NA NA
 Greatest 24-HR Total 2.0 4.0 2.3 11.3 6.2 0.0 0.0 0.0 5.7 4.8 1.0 2.0 11.3
 Dates of Occurrence 11-12 8-9 23-24  8-9 1 NA NA NA 26-27 3-4 20-21 19-20 4/8-4/9
 Number of Days with:                          
    Snowfall >= 1.0 inch 1 3 2 5 1 0 0 0 1 3 1 2 19
Daily Snowfall Records Set or Tied 0 1 0 2 0 0 0 0 1 0 0 0 4
             

 February 2013 was the 2nd snowiest on record.

 April 2013 was the 3rd snowiest on record.

 May 2013 was the 6th snowiest on record.

 September 2013 was tied for 2nd snowiest on record with September 2000.

Records set during 2013:

 
Snowfall: 

One day Snowfall:

 The 4.0 inches of snowfall for the 24 hour period from 7AM February 8th to 7AM February 9th was a new record.

The 11.3 inches of snowfall for the 24 hour period from 7AM April 8th to 7AM April 9th was a new record.

The 6.1 inches of snowfall for the 24 period from 7AM April 16th to 7AM April 17th was a new record.

The 5.7 inches of snowfall for the 24 period from 7AM September 26th to 7AM September 27th was a new record.

 
 
 


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