What is the hottest month in Vernal?

July is the warmest month in Vernal, with an average high of 88.7°F.

What is the coldest month in Vernal?

January is the coldest month in Vernal, with an average low of 10.0°F.

What month does Vernal get the most rain?

September is typically the wettest month in Vernal, with about 1.22 inches of precipitation.

What plant hardiness zone is Vernal in?

Vernal is approximately in USDA plant hardiness Zone 6b, based on the average annual extreme minimum temperature.

Has the climate in Vernal changed recently?

9% of Vernal's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Vernal, UT

Climate overview — based on NOAA 1991-2020 normals from VERNAL, UT US.

BSk Semi-arid (cold) climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Vernal has an annual average temperature of 46.9°F with about 9.1 inches of precipitation per year and 20.4 inches of snow. The warmest month is July (average high 88.7°F), and the coldest is January (average low 10.0°F). September is typically the wettest month (1.22 in) and November the driest (0.51 in). Snow typically falls from October through April.

Annual swing

53.1°F

warmest to coldest month

Heating need

6,927

HDD/yr

Cooling need

426

CDD/yr

Best time to visit Vernal

Full guide →

Climate change signal

All-time records →

33 of 366 (9%) of Vernal's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		7
1900s		31
1910s		47
1920s		18
1930s		46
1940s		17
1950s		31
1960s		11
1970s		39
1980s		21
1990s		29
2000s		33
2010s		13
2020s		23

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	29.2°F	10.0°F	19.6°F	0.62 in	5.8 in	5
February	37.1°F	16.5°F	26.8°F	0.56 in	3.9 in	5
March	51.1°F	26.5°F	38.8°F	0.68 in	1.6 in	5
April	59.9°F	33.5°F	46.7°F	0.75 in	0.6 in	6
May	70.2°F	42.6°F	56.4°F	1.04 in	—	7
June	81.4°F	50.5°F	66.0°F	0.59 in	—	4
July	88.7°F	56.7°F	72.7°F	0.54 in	—	4
August	86.0°F	55.1°F	70.5°F	0.81 in	—	5
September	76.3°F	46.1°F	61.2°F	1.22 in	—	6
October	61.2°F	34.8°F	48.0°F	1.15 in	0.5 in	5
November	45.7°F	23.5°F	34.6°F	0.51 in	1.6 in	4
December	31.3°F	12.7°F	22.0°F	0.61 in	6.4 in	5