climigo

Wyoming

When to go?

The best months are May–June, August–October. Avoid November–March (freezing).

Climate zones

ColoradoUtahNebraskaSouth DakotaIdahoMontanaCheyenneCheyenneCheyenneJacksonJacksonJacksonLaramieLaramieLaramieCasperCasperCasperCodyCodyCodyGrand Teton National ParkGrand Teton National ParkGrand Teton National ParkYellowstone National ParkYellowstone National ParkYellowstone National Park

Mean maximum and minimum temperature and mean monthly precipitation of the season (the mean of its three months), ERA5-Land 1996–2025, at about 9 km resolution: colours are in levels (the same as the city scale) and smaller details are not real.

What is the climate like?

Area mean indicative, over the whole territory

Temperature and rain

January 1°−12° snow likely
February 2°−12° snow likely
March 7°−8° snow likely
April 12°−4°
May 18°2°
June 25°7°
July 29°11°
August 28°9°
September 23°4°
October 15°−2°
November 7°−7° snow likely
December 1°−12° snow likely

Monthly min and max temperature (°C)

−15°−10°−5°0°5°10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec−12.2 · 0.6 °CJanuary: −12.2 · 0.6 °C−11.7 · 1.9 °CFebruary: −11.7 · 1.9 °C−7.5 · 7.2 °CMarch: −7.5 · 7.2 °C−3.6 · 11.8 °CApril: −3.6 · 11.8 °C1.6 · 17.5 °CMay: 1.6 · 17.5 °C6.7 · 24.6 °CJune: 6.7 · 24.6 °C10.5 · 29.4 °CJuly: 10.5 · 29.4 °C8.8 · 27.9 °CAugust: 8.8 · 27.9 °C4.2 · 23.0 °CSeptember: 4.2 · 23.0 °C−1.9 · 14.6 °COctober: −1.9 · 14.6 °C−7.2 · 7.0 °CNovember: −7.2 · 7.0 °C−11.6 · 1.2 °CDecember: −11.6 · 1.2 °C

Monthly min and max temperature (°C)

Jan −12.2 – 0.6 °C
Feb −11.7 – 1.9 °C
Mar −7.5 – 7.2 °C
Apr −3.6 – 11.8 °C
May 1.6 – 17.5 °C
Jun 6.7 – 24.6 °C
Jul 10.5 – 29.4 °C
Aug 8.8 – 27.9 °C
Sep 4.2 – 23.0 °C
Oct −1.9 – 14.6 °C
Nov −7.2 – 7.0 °C
Dec −11.6 – 1.2 °C

How much it rains

January 20 mm5 d
February 21 mm5 d
March 26 mm6 d
April 38 mm8 d
May 52 mm8 d
June 39 mm6 d
July 28 mm5 d
August 26 mm5 d
September 28 mm5 d
October 30 mm6 d
November 19 mm5 d
December 22 mm5 d

Rain days and how much water

0102030 dJanFebMarAprMayJunJulAugSepOctNovDec20 mm · 5 rain days · 4 mm a dayJanuary: 20 mm · 5 rain days · 4 mm a day21 mm · 5 rain days · 4 mm a dayFebruary: 21 mm · 5 rain days · 4 mm a day26 mm · 6 rain days · 4 mm a dayMarch: 26 mm · 6 rain days · 4 mm a day38 mm · 8 rain days · 5 mm a dayApril: 38 mm · 8 rain days · 5 mm a day52 mm · 8 rain days · 7 mm a dayMay: 52 mm · 8 rain days · 7 mm a day39 mm · 6 rain days · 7 mm a dayJune: 39 mm · 6 rain days · 7 mm a day28 mm · 5 rain days · 6 mm a dayJuly: 28 mm · 5 rain days · 6 mm a day26 mm · 5 rain days · 5 mm a dayAugust: 26 mm · 5 rain days · 5 mm a day28 mm · 5 rain days · 6 mm a daySeptember: 28 mm · 5 rain days · 6 mm a day30 mm · 6 rain days · 5 mm a dayOctober: 30 mm · 6 rain days · 5 mm a day19 mm · 5 rain days · 4 mm a dayNovember: 19 mm · 5 rain days · 4 mm a day22 mm · 5 rain days · 4 mm a dayDecember: 22 mm · 5 rain days · 4 mm a day

Rain days and how much water

Jan 20 mm5 d
Feb 21 mm5 d
Mar 26 mm6 d
Apr 38 mm8 d
May 52 mm8 d
Jun 39 mm6 d
Jul 28 mm5 d
Aug 26 mm5 d
Sep 28 mm5 d
Oct 30 mm6 d
Nov 19 mm5 d
Dec 22 mm5 d

Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day

Colour = the month's rain: 103060100160250400mm

Daylight hours

January 9 h 23
February 10 h 33
March 11 h 53
April 13 h 23
May 14 h 38
June 15 h 19
July 15 h 02
August 13 h 57
September 12 h 32
October 11 h 05
November 9 h 46
December 9 h 03

Mean daylight hours over the whole territory.

Snow on the ground

January 27 cm
February 32 cm
March 30 cm
April 24 cm
May 14 cm
June 3 cm
July –
August –
September –
October 2 cm
November 7 cm
December 17 cm

Mean snow depth on the ground (cm)

02550 cmJanFebMarAprMayJunJulAugSepOctNovDec27 cmJanuary: 27 cm32 cmFebruary: 32 cm30 cmMarch: 30 cm24 cmApril: 24 cm14 cmMay: 14 cm3 cmJune: 3 cm0 cmJuly: 0 cm0 cmAugust: 0 cm0 cmSeptember: 0 cm2 cmOctober: 2 cm7 cmNovember: 7 cm17 cmDecember: 17 cm

Mean snow depth on the ground (cm)

Jan 27 cm
Feb 32 cm
Mar 30 cm
Apr 24 cm
May 14 cm
Jun 3 cm
Jul 0 cm
Aug 0 cm
Sep 0 cm
Oct 2 cm
Nov 7 cm
Dec 17 cm

Spatial mean over the whole area, weighted by area (cosine of the latitude), not by population: indicative only, since the climate varies a lot within an area (coasts, plains, mountains). Look at the cities for the weather you will find.

Tourist areas

Cities