Preliminary
Wyoming Monthly Climatology
August 2004
Statewide Summary
Wyoming, August 2004 on average experienced cooler and significantly wetter or drier conditions depending on where you live.
Average temperatures ranged from near normal over portions of Sublette and Teton Counties to well below normal temperatures over portions of Platte and Goshen Counties. Precipitation was
much below normal north of a line from SE to NW Wyoming and much above normal from south central and western Wyoming.
Soil moisture at the end of August was normal over all but the extreme eastern and northeast regions of the state.
Dryness over the eastern plains was clearly reflected in Torrington's soil moisture profile. The only drought regions that have improved since last month are over the southern extremes of the North Platte River Basin and over northwest Wyoming. (drought monitor).
Weather Summary: For the week ending Friday, August 6, temperatures were above normal. Temperatures
ranged from 1.1 degrees above normal in Worland to 5.8 degrees above normal in Kaycee. The highest temperature
was 99 degrees in Kaycee, while the lowest temperature was 39 degrees in Big Piney. A trace or more of
precipitation was reported at most stations with most stations reporting below normal amounts. The most
precipitation fell in Archer with 0.61 inch, Recluse with 0.52 inch, and Sundance with 0.44 inch.
Weather Summary: For the week ending Friday, August 13, temperatures were below normal except in the
western part of the State. Temperatures ranged from 9.0 degrees below normal in Gillette to 2.9 degrees above
normal in Uinta. The highest temperature was 97 degrees in Torrington, while the lowest temperature was 33
degrees in Afton, Big Piney, and Laramie. Some record overnight lows were set. Only light precipitation was
reported in the eastern part of the state. The most precipitation fell in Newcastle with 0.17 inch and Gillette with
0.13 inch.
Weather Summary: For the week ending Friday, August 20, temperatures were below normal except in
some western areas. Temperatures ranged from 6.8 degrees below normal in Recluse to 4.9 degrees above
normal in Jackson. The highest temperature was 92 degrees in Torrington, while the lowest temperature was 37
degrees in Recluse. Precipitation was scattered with above normal amounts in western and south central areas.
The Big Horn Basin and Northeast received very little precipitation. The most precipitation fell in Lander with
2.25 inches and Laramie with 0.86 inch.
Weather Summary: For the week ending Friday, August 27, below normal temperatures were seen across
the State. Temperatures ranged from 1.3 degrees below normal in Jackson to 7.7 degrees below normal in
Worland. The highest temperature was 91 degrees in Torrington and Recluse, while the lowest temperature
was 30 degrees in Recluse and Big Piney. Precipitation was widespread with most areas receiving some
moisture except in some central and northern areas. Recluse was the only station who received no precipitation.
The most precipitation fell in Saratoga with 1.50 inches and Jackson with 1.43 inch.
Cheyenne
The average temperature in August was 65.1°F. This is 0.8°F below normal for the month.
The maximum temperature for the month was 92°F on the 1st and the minimum of 40°F occurred on the 28th.
There was only one day in which the temperature reached 90°F. Since 1915, Cheyenne's total monthly August 90-degree days
vary from zero to 13 days:
90 deg or high Days----- YEAR
0-------- 15,16,17,30,33,42,50,56,57,64,73,74,76,77,78,81,82,83,84,89,93,97
1------- 18,22,24,29,51,55,63,67,72,90,91,92,96,04
2------- 31,32,34,35,45,46,48,49,53,61,66,68,71,75,85,98,99,02
3------- 26,39,52,54,59,65,86
4------- 41,58,80,87
5------- 62,79,88,01
6------- 40,43,47,94
7------- 36,69
8------- 00,03 - Drought Years
9------- 44
10------ 38,70
11------ 60,95
12------ none
13------ 37
Precipitation total of 0.92 inch is 51 percent of normal.
past 365-days temperature
Douglas
The average temperature in August was 65.5°F. This is 3.3°F cooler than normal.
The maximum temperature for the month was 97°F on the 1st and the minimum for the month of 34°F occurred on the 28th.
Precipitation total of 0.55 inch is 60 percent of normal.
Torrington
The average temperature in August was 68.3°F. This is 1.9°F cooler than normal.
The maximum temperature for the month was 98°F on the 1st and the minimum for the month of 36°F occurred on the 28th.
Precipitation total of 0.38 inch is 32 percent of normal.
Additional Stations:
Buffalo
Gillette
Greybull
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 historical at the bottom of the daily summary statistics.
For Casper, Lander, and Riverton's Monthly F6 reports, see here
and at the bottom of this webpage. Record daily temperatures are
based on the period since 1948-9 for all cities unless otherwise noted.
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