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Shaded-relief map of Farson, Wyoming: rivers, roads, the city limits and where the water drains.
WYOMING · SWEETWATER COUNTY

Farson

272 people, 6,630 ft above sea level in Sweetwater County.

6,630 ftElevation, city center
272People, 2024 estimate
24 sq miLand area
Sunny 44°
Sunny now Dew point 32° · Calm · high 47°
City of Farson River Interstate 2 miles
Explore the plate Order a print

The Farson plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Farson

NWS forecast and National Blend of Models · updated 11:00 AM MST
RIGHT NOW Big Piney - Marbleton Airport (KBPI) · 11:53 AM
Sunny
44° Sunny Feels like 44° · high of 47° near 3 PM
WindCalmno gusts
Humidity62%falling to 58% this afternoon
Pressure29.82 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 32° · Dry19° by Sunday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tuesday60% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 10.29 in · 13 dry days
ALERTS & OUTLOOKS
No watches or warnings for Sweetwater County
NWS Riverton and the Storm Prediction Center · checked 12:17 PM
SUN & MOON
↑ 7:06 AM4:57 PM ↓
9 h 50 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
35
GOODAir quality index · ozone
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
partly cloudy day
mostly cloudy day
partly cloudy night
mostly clear night
clear night
mostly clear night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
mostly clear night
mostly clear night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly cloudy day
mostly cloudy day
TEMPERATURE °F
44°
19°
44°
21°
45°
25°
CHANCE OF RAIN
50%
WIND, MPH
3
9
10
9
7
6
0
0
3
2
0
0
0
0
0
0
3
4
1
0
0
0
2
4
HOW IT FEELS · DEW POINT
Dry: dew points 19 to 33°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 40° / 10°
SAT Nov. 14 Partly cloudy Partly cloudy
47° 19°
20% rain — NNW 5 A
SUN Nov. 15 Partly cloudy Partly cloudy
45° 20°
0% rain — SSE 2 A
MON Nov. 16 Partly cloudy Partly cloudy
47° 24°
0% rain — SSE 2 B
TUE Nov. 17 Showers likely Showers likely
46° 21°
60% rain 0.04–0.2″ S 6 B
WED Nov. 18 Mostly sunny Mostly sunny
39° 18°
20% rain — ESE 3 C
THU Nov. 19 Showers likely Showers likely
39° 20°
60% rain up to 0.3″ S 3 C
FRI Nov. 20 Chance of showers Chance of showers
39° 16°
60% rain up to 0.4″ WNW 6 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Farson about 5,000 feet above the ground was over the Great Basin three days ago, about 440 miles back along its path. Most of the nine paths traced from around the city agree. Near the ground the air came from the Great Basin; at 10,000 feet, from the southern Rockies. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK IN 1955 Nov. 16, 1955

The coldest this week has been

−34° on Nov. 16, 1955, the coldest reading for this week of the year since 1915. Next is −25° in 1978.

−25°
−34°
19781955
Source: NOAA RCC-ACIS, the Farson 2 NNE record since 1915.
MILE2
THE GROUND

What Farson stands on

Farson’s center stands about 6,630 ft above sea level. Within three miles the land runs from 6,590 ft to 6,700 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Tule Butte, about 7,280 ft, 11 miles east.

Under the town center the state geologic map shows Green River Formation - Laney Member (oil-shale, marlstone), from the Eocene, 34 to 56 million years old.

The section below crosses 3 rock units mapped at the surface.

Farson, cut in half from southwest to northeast

A section southwest to northeast, 24 miles through the town center
6,600 ft6,800 ft FARSON6,630 ftLow point6,510 ftBig Sandy Riverabout 6,580 ftHigh point of the line6,990 ft ← SWNE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Green River Formation - Laney Member

Oil-shale, marlstone. Age: Eocene, 34 to 56 million years old. About 19 mi of the line.

Bridger Formation

Sandstone, claystone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.

Alluvium and Colluvium

Clay, silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Farson’s rain goes

A raindrop that lands in Farson reaches the Gulf of California by way of the Big Sandy, the Green River and the Colorado: about 1,570 river miles.

THE WAY DOWN, TO SCALE
Farson≈ 1,570 mi · the Gulf of California
FROM THE CENTER OF FARSON ≈ 1,570 mi to the Gulf of California Big Sandy → Green River → Colorado

Lakes on the way: Lake Mead, Lake Powell, Flaming Gorge Reservoir and Lake Mohave.

410 miles of the trip are on the Green River.

Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Farson; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Farson’s year

1991–2020 normals · records since 1915 · Farson 2 NNE

Farson has a cold semi-arid climate. Summer afternoons average 83° in July; winter nights fall to about −4° in January. A normal year brings about 28 inches of snow; with the rain, that comes to about 8 inches of water.

28°−4°30°−1°42°14°54°22°64°32°74°40°83°45°81°44°71°33°57°22°41°10°30°−2° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY FARSON 7.8 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average83° / 45°high / low, the warmest month
January, average28° / −4°high / low, the coldest month
Rain and melted snow7.8 inwettest months: May and June
Snow a year28.4 insnowiest: February
Hottest on record105°FJuly 14, 2026
Coldest on record−52°FDecember 31, 1978
Wettest day on record2.21 inMay 7, 2016
Snowiest day on record18.0 inJanuary 26, 2017
Climate typeCold semi-aridKöppen BSk

AROUND THE RING

1Highs below freezingDec. 4 to Feb. 22; normal highs stay below 32°
2Lows below freezingSept. 18 to May 17; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Farson normally reaches 42° and falls to 11°. The record high is 61°, in 1999; the record low −22°, in 2000. The most rain on this date, 0.26 in, fell in 1958.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high28°30°42°54°64°74°83°81°71°57°41°30°
Normal low−4°−1°14°22°32°40°45°44°33°22°10°−2°
Rain and melt, in0.340.290.470.791.471.050.540.730.850.610.320.37
Snow, inches4.85.14.94.10.40.00.00.00.11.13.34.6
Record high55° (2006)58° (2015)77° (2026)82° (2026)91° (2026)97° (1954)105° (2026)97° (2026)93° (1931)81° (1979)71° (1924)70° (1925)
Record low−49° (1979)−47° (1942)−31° (1966)−24° (1936)5° (1972)19° (1982)25° (1949)21° (1964)7° (1972)−15° (2019)−34° (1955)−52° (1978)

Normals 1991–2020 and records since 1915 at Farson 2 NNE, here. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Farson on the Forecast Network

Neighboring plates

Logan UT · 128 MI 128 miles west Idaho Falls ID · 161 MI 161 miles northwest Pocatello ID · 163 MI 163 miles west Rexburg ID · 166 MI 166 miles northwest
FORECASTCITY
Map of Farson, Wyoming. Explore the plate
WYOMING · SWEETWATER

Farson

272 people, 6,630 ft above sea level in Sweetwater County.

6,630 ftElevation
272People
24 sq miLand
Sunny 44°
SunnyDew point 32°
1

Today in Farson

NEXT 15 HOURS
Now partly cloudy day 44° 1%
3p partly cloudy day 47° 13%
6p partly cloudy night 38° 3%
9p mostly clear night 32° 0%
12a clear night 26° 0%
3a mostly clear night 23° 0%
Rain
NEXT RAINTuesday · 60%
→
Sat20%
Partly cloudy Partly cloudy
19
47
A
Sun0%
Partly cloudy Partly cloudy
20
45
A
Mon0%
Partly cloudy Partly cloudy
24
47
B
Tue60%
Showers likely Showers likely
21
46
B
Wed20%
Mostly sunny Mostly sunny
18
39
C
Thu60%
Showers likely Showers likely
20
39
C
Fri60%
Chance of showers Chance of showers
16
39
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1955 · NOV. 16, 1955

−34°, the coldest this week of the year has been since 1915.

2

What Farson stands on

Farson’s center stands about 6,630 ft above sea level. Within three miles the land runs from 6,590 ft to 6,700 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Tule Butte, about 7,280 ft, 11 miles east.

Farson, southwest to northeast Farson6,630 ftBig Sandy Riverabout 6,580 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 76×. Colors: rock at the surface.
Elevation, center6,630 ft
Within 3 miles6,590 to 6,700 ft
Lie of the landGently rolling (110 ft of relief)
High point nearbyTule Butte, 7,280 ft, 11 mi east
Rock at the surfaceGreen River Formation - Laney Member
Its ageEocene, 34 to 56 million years old
5

Farson’s year

Farson has a cold semi-arid climate. Summer afternoons average 83° in July; winter nights fall to about −4° in January. A normal year brings about 28 inches of snow; with the rain, that comes to about 8 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 7.8 in
July, average83° / 45° · high / low, the warmest month
January, average28° / −4° · high / low, the coldest month
Rain and melted snow7.8 in · wettest months: May and June
Snow a year28.4 in · snowiest: February
Hottest on record105°F · July 14, 2026
Coldest on record−52°F · December 31, 1978
Wettest day on record2.21 in · May 7, 2016
Snowiest day on record18.0 in · January 26, 2017
Climate typeCold semi-arid · Köppen BSk
1Highs below freezing · Dec. 4 to Feb. 22; normal highs stay below 32°
2Lows below freezing · Sept. 18 to May 17; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Farson normally reaches 42° and falls to 11°. The record high is 61°, in 1999; the record low −22°, in 2000. The most rain on this date, 0.26 in, fell in 1958.

Normals 1991–2020 and records since 1915 at Farson 2 NNE, here. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 1,570 mito the Gulf of CaliforniaBig Sandy → Green River → Colorado

A raindrop that lands in Farson reaches the Gulf of California by way of the Big Sandy, the Green River and the Colorado: about 1,570 river miles.

Lakes on the way: Lake Mead, Lake Powell, Flaming Gorge Reservoir and Lake Mohave.

410 miles of the trip are on the Green River.

Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.