Preliminary
Wyoming Monthly Climatology
August 2002
Statewide Summary
August temperatures generally ranged from 2°F to 4°F below normal in central Wyoming to near or slightly above normal elsewhere. Precipitation ranged from 9 percent of normal in Big Piney to 161 percent above normal in Sheridan. The statewide drought continues unchanged from last month.
The average temperature in August 2002 was 63.7°F. This was -0.4°F
cooler than the 1895-2002 average, the 44th coolest August in 108 years.
The temperature trend for the period of record (1895 to present) is 0.2
degrees Fahrenheit per decade.
0.94 inches of precipitation fell in August. This was -0.08 inches less
than the 1895-2002 average, the 56th driest such month on record. The
precipitation trend for the period of record (1895 to present) is -0.01
inches per decade.
Cheyenne
The average temperature in August was 65.9°F. This is 0.7°F warmer than normal. The maximum for the month was 95°F on the 16th and the minimum of 42°F occurred on the 13th. Precipitation total of 2.21 inches is 21 percent above normal.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Laramie
The average temperature in August was 61.8°F. This is 0.1°F warmer than normal for the month. The maximum for the month was 89°F on the 16th and the minimum of 35°F occurred on the 13th (record low for the day). Precipitation total of 1.47 inches is 20 percent above normal.
Rawlins
The average temperature in August was 65.2°F. This is 1.3°F cooler than normal for the month. The maximum temperature for the month was 90°F on the 16th and the minimum of 37°F occurred on the 13th. Precipitation total of 0.62 inch is 31 percent of normal.
Rock Springs
The average temperature in August was 66.5°F. This is 1.3°F warmer than normal. The maximum temperature for the month was 90°F on the 16th and the minimum of 42°F occurred on the 13th (tied as record low for the day). Precipitation total of 0.18 inch is 31 percent of normal.
Evanston
The average temperature in August was 64.1°F. This is 2.7°F warmer than normal. The maximum temperature for the month was 85°F on the 16th and the minimum of 40°F occurred on the 9th. Precipitation total of 0.14 inch is 15 percent of normal and is tied for the 14th lowest August total since 1898.
Big Piney
The average temperature in August was 58.8°F. This is 0.6°F warmer than normal. The maximum temperature for the month was 85°F on the 15th and 16th and the minimum of 30°F occurred on the 9th. Precipitation total of 0.07 inch is 9 percent of normal and is the 3rd lowest August total since 1948.
Lander
The average temperature in August was 67.3°F. This is 2.1°F cooler than normal. The maximum temperature for the month was 92°F on the 6th and 14th and the minimum of 41°F occurred on the 13th (record daily low). Precipitation total of 0.07 inch is 12 percent of normal and ties for the 6th driest August since 1948.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Riverton
The average temperature in August was 66.8°F. This is 1.4°F cooler than normal. The maximum temperature for the month were 95°F on the 16th (record for the day) and the minimum of 42°F occurred just a day later on the 17th. Precipitation total of 0.41 inch is 84 percent of normal.
Worland
The average temperature in August was 67.3°F. This is 4.6°F cooler than normal. The maximum temperature for the month was 94°F on the 6th and 16th, and the minimum of 40°F occurred on the 17th. A record low of 46°F was set on the 13th. Precipitation total of 0.39 inch is 64 percent of normal.
Sheridan
The average temperature in August was 65.0°F. This is 3.2°F cooler than normal. The maximum temperature for the month was 99°F on the 6th and the minimum of 32°F (record for the day) occurred on the 17th. Precipitation total of 1.29 inches is 161 percent of normal and is the 9th wettest August since 1948.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Casper
The average temperature in August was 66.6°F and is 2.0°F cooler than normal. The maximum temperature for the month was 96°F on the 16th (tied for a record daily high) and the minimum of 36°F occurred just one day later on the 17th (record daily low). Two other record lows were broken during the month when the temperature dropped to 39°F on the 10th, 38°F on the 13th, and 37°F on the 19th. Precipitation total of 0.54 inch is 74 percent of normal.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Torrington
The average temperature in August was 70.4°F and is 0.2°F warmer than normal. The maximum temperature for the month was 102°F on the 16th (record for the day) and the minimum of 43°F occurred on the 13th and 17th. Precipitation total of 1.72 inch is 145 percent of normal and is the 14th wettest August since 1922.
Additional Stations:
Buffalo
Douglas
Gillette
Greybull
Yellowstone
This information was compiled by the Wyoming State Climatologist, University of Wyoming. For more information, contact Jan Curtis at (307) 766-6659. For periodic updates, visit http://www.wrds.uwyo.edu This site includes a searchable database for Wyoming climate and water. For additional daily and hourly climatology, click on this interactive map by selecting a city. Then click on the "Monthly History" link on the left menu. Record daily temperatures are based on the period since 1949 for all cities unless otherwise noted.
To Wyoming Monthly Summaries Index Listing
