Weather & Climate in Rolling Hills, WY

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Rolling Hills experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 27°F in January while summers reach 72°F in July. The area gets 302 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 15.9 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 5,342 feet.

Temperature

27°F Jan (-3°C) 72°F Jul (22°C)

Annual Average	47.1°F
	13% below US avg
January Average	27°F (-3°C)
July Average	72°F (22°C)
Sunny Days	302 days/yr

Geography

Elevation	5,342 ft (1,628 m)
Area	0.7 sq mi (1.7 km²)
Population Density	794/sq mi
Coordinates	42.9036°N, 105.8434°W
Timezone	America/Denver
County	Converse County County
Nearest Airport	Casper/Natrona County International (CPR) 31 miles away

Precipitation & Snow

Annual Rainfall 15.9"

58% below US avg

Wettest Month (May) 2.32"

Driest Month (Jan) 0.47"

Air Quality

AQI Median	34.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	31.4 / 100
Social Vulnerability	42.4 / 100
Community Resilience	12.3 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Very Low
Wildfire	Relatively Moderate
Flood	Relatively Low
Hail	Relatively Low
Strong Wind	Very Low
Heat Wave	Very Low
Winter Weather	Relatively Moderate
Lightning	Relatively Low
Ice Storm	Very Low
Drought	Very Low
Cold Wave	Relatively Moderate
Landslide	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

54 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

Oct 19, 1996	21 km E of Antelope Hills, Wyoming	M4.2	27 km	5 km
Nov 3, 2017	57 km S of Ten Sleep, Wyoming	M4.0	143 km	17 km
Apr 13, 2021	51 km S of Ten Sleep, Wyoming	M3.9	144 km	12 km
Aug 2, 2021	12 km NW of Rolling Hills, Wyoming	M3.8	13 km	10 km
Aug 29, 2004	16 km NNW of Douglas, Wyoming	M3.8	29 km	5 km
Feb 1, 2003	11 km E of Antelope Hills, Wyoming	M3.7	33 km	5 km
Feb 13, 2023	Wyoming	M3.7	145 km	10 km
Oct 10, 1993	41 km W of Esterbrook, Wyoming	M3.7	54 km	5 km
Apr 9, 1996	34 km SW of Edgemont, South Dakota	M3.7	143 km	5 km
Jul 23, 1993	29 km WNW of Esterbrook, Wyoming	M3.7	49 km	5 km
Jul 4, 2021	43 km S of Ten Sleep, Wyoming	M3.6	149 km	17 km
Aug 31, 1992	34 km WNW of Kaycee, Wyoming	M3.6	141 km	5 km
Feb 15, 2004	19 km N of Douglas, Wyoming	M3.5	36 km	10 km
Aug 13, 2004	35 km SW of Alcova, Wyoming	M3.5	114 km	5 km
Oct 8, 2009	31 km SSW of Alcova, Wyoming	M3.4	109 km	5 km
Aug 26, 2022	27 km E of Bairoil, Wyoming	M3.3	136 km	5 km
Sep 3, 2023	32 km NW of Kaycee, Wyoming	M3.3	143 km	5 km
Oct 31, 2017	56 km S of Ten Sleep, Wyoming	M3.2	148 km	15 km
Jul 22, 2020	16 km NW of Rolling Hills, Wyoming	M3.2	16 km	34 km
Dec 13, 1993	14 km SW of Esterbrook, Wyoming	M3.2	69 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

114 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 2 fatalities, 39 injuries.

Date	Rating	Distance	Path	Fatalities
Jul 28, 2018	EF3	39 km	4.4 mi	0
Jun 23, 2023	EF2	77 km	3.8 mi	0
Aug 12, 2005	EF2	97 km	1.5 mi	2
Jul 21, 1987	EF2	76 km	5.0 mi	0
Jun 18, 1987	EF2	40 km	7.0 mi	0
Jun 13, 1984	EF2	96 km	4.0 mi	0
Jun 5, 1982	EF2	97 km	1.0 mi	0
Jun 5, 1982	EF2	40 km	7.0 mi	0
Jul 28, 1978	EF2	97 km	5.0 mi	0
Jul 20, 1978	EF2	41 km	1.0 mi	0
May 29, 1971	EF2	29 km	0.2 mi	0
Jun 11, 1962	EF2	55 km	52.0 mi	0
Jun 23, 2023	EF1	60 km	10.8 mi	0
Jul 28, 2018	EF1	50 km	1.8 mi	0
Jun 12, 2017	EF1	38 km	0.5 mi	0
May 24, 1990	EF1	93 km	2.0 mi	0
Jul 7, 1988	EF1	90 km	0.5 mi	0
Jun 18, 1987	EF1	76 km	0.8 mi	0
Jun 12, 1986	EF1	65 km	1.0 mi	0
Jun 13, 1984	EF1	97 km	1.0 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ARAPAHO (100,043 acres, 2012).

Year	Name	Acres Burned	Distance
2012	ARAPAHO	100,043	85 km
1996	OLMSTEAD D	44,562	30 km
2010	ORPHA	25,839	37 km
2018	BRITANIA MOUNTAIN	23,701	100 km
2024	WILDCAT CREEK	18,751	94 km
1996	GEARY D. 2	15,564	16 km
2006	SAWMILL	15,379	65 km
2002	HENSEL	14,439	75 km
2012	SAWMILL CANYON	13,438	96 km
2006	TWENTY MILE	11,732	66 km
2006	JACKSON CANYON	11,686	53 km
2000	ORMSBY	11,539	30 km
2012	SHEEP HERDER HILL COMPLEX	10,759	37 km
2011	THOMPSON	10,519	91 km
1999	WALKER	10,022	55 km
2015	STATION	9,845	28 km
1996	HENRYS	9,839	38 km
2010	WILLOW CREEK	9,706	58 km
2000	HENDERSON	9,624	57 km
1996	BONER	9,414	17 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	0.5 in	Driest
February	28°F (-2°C)	0.5 in
March	35°F (2°C)	0.8 in
April	43°F (6°C)	1.4 in
May	53°F (11°C)	2.3 in	Wettest
June	63°F (17°C)	1.7 in
July	72°F (22°C)	1.3 in	Warmest
August	69°F (21°C)	0.8 in
September	59°F (15°C)	0.9 in
October	47°F (8°C)	0.9 in
November	34°F (1°C)	0.7 in
December	26°F (-3°C)	0.5 in	Coldest

Rolling Hills has a seasonal temperature swing of 46°F / from 26°F in December to 72°F in July. Total annual precipitation is 12.3 inches, with May being the wettest month (2.3") and January the driest (0.5").

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