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Casper’s Weather Summary For 2011

Karen Snyder, K2 Radio

Here’s a look at Casper’s Weather for 2011. as recorded at the Casper/Natrona County International Airport. This is provided by the National Weather Service in Riverton.

National Weather Service Weather Forecast OfficeHazards

 

2011 Climate Summary for Casper  

Natrona County International Airport

Month Avg 

High

Avg 

Low

Average 

Temp

Departure 

From

Normal

Total 

Pcpn

Departure 

From

Normal

Snowfall Avg Snow Departure
January 32.3 14.5 23.4 1.3 0.44 -0.07 12.9 9.1 3.8
February 31.0 10.3 20.6 -6.1 0.86 0.29 12.6 9.8 2.8
March 49.2 24.9 37.1 1.9 0.46 -0.36 7.0 10.9 -3.9
April 54.3 28.4 41.3 -1.4 1.37 0.08 5.4 11.6 -6.2
May 59.7 35.4 47.6 -4.6 3.37 1.35 0.7 2.9 -2.2
June 78.0 43.0 60.5 -1.7 1.55 -0.06 0 0.1 -0.1
July 90.5 55.6 73.1 2.6 1.52 0.11 0 0 0.0
August 90.2 53.2 71.7 2.7 0.23 -0.62 0 0 0.0
September 78.1 41.8 59.9 2.0 0.10 -0.98 0 1.8 -1.8
October 62.2 34.9 48.5 3.3 1.44 0.33 1.0 7.4 -6.4
November 44.0 21.2 32.6 -0.6 1.24 0.48 14.3 10.3 -4.0
December 33.1 14.9  

24.0
 

0.2

0.71
 

0.10

 

11.4

11.0  

0.4

2011 Annual 58.5 31.5 45.0
-0.4
13.29
0.65
65.3 74.9 -9.6

1981-2010 Averages

Yearly Extremes:
Temperatures: 

Highest Temperature: 98 degrees on July 3rd and 25th.
Days with Maximum Temperature 90 deg F or Higher: 39
Days with Maximum Temperature 32 deg F or Lower: 45
Lowest Temperature: -24 degree on January 10th.
Days with Minimum Temperature 32 deg F or Lower: 186
Days with Minimum Temperature 0 deg F or Lower: 16
Precipitation: 

Highest Daily Precipitation: 0.75 on October 6th.
Days with Precipitation 0.01 Inches or More: 91
Days with Precipitation 0.10 Inches or More: 39
Days with Precipitation 0.50 Inches or More: 7
Days with Precipitation 1.00 Inches or More: 0*
Highest Daily Snowfall: 7.5 inches on January 9th*
Days with Snowfall: 49
Days with Snowfall of 1 Inch or More: 18

Wind:

Highest Wind Gust: 62 mph on March 19th.


Records set during 2011:

Temperatures (degrees F):


Max


April: 75 on the 2nd.
July: 98 on the 3rd (tie) and 25th.
August: 96 on the 27th (tie).
September: 88 on the 25th.

Min:

April: 15 on the 23rd.
November: -14 on the 19th, -14 on the 20th (tie).

 

Average:

Monthly: 7th coldest February.
4th coldest May.

Annual: None.

 

Precipitation:

 

One day Precipitation:

January: 0.05 on the 30th.
February: 0.42 on the 20th.
May: 0.60 on the 9th.
November: 0.50  on the 1st.
December: 0.38  on the 31st.

 


One day Snowfall (inches):

January: 7.5  on the 9th.
February: 6.0  on the 20th.
November: 4.6  on the 1st, 6.7 on the 18th.
December: 3.8 on the 21st.

Monthly Precipitation:

2rd driest September (tie).

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