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Weather on June 18

Saint George, UT

55 Years of Data

Avg High
96°F
Avg Low
61°F
Warmest
1989
97°F avg
Coldest
2010
57°F avg

About This Date

June 18th in Saint George, UT typically brings hot summer weather, with average highs around 96°F and lows near 61°F — a 35°F daily swing. Over 56 years of records, the warmest June 18th was in 1989 (97°F average), while the coldest was 2010 (57°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 18th dates historically. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for June 18th in Saint George, UT? Stay hydrated and seek shade during peak afternoon hours.

Warming Trend
0.6°F per decade on this date
YearHighLowAvgPrecipSnow
2026104°66°85°——
2025100°63°81°——
202495°60°78°——
202390°61°75°——
202299°62°80°——
2021103°67°85°——
202089°62°76°——
201990°58°74°——
201891°51°71°——
2017104°71°88°——
201696°64°80°——
2015101°69°85°——
201489°55°72°——
201398°66°82°——
2012100°70°85°——
201193°64°78°——
2010coldest67°47°57°——
200992°59°75°——
2008101°66°83°——
2007102°62°82°——
2006104°65°84°——
200591°57°74°——
200495°55°75°——
2003100°61°80°——
2002102°63°82°——
2001105°64°85°——
200090°63°76°——
199999°68°83°——
199891°51°71°——
1997102°70°86°——
1996100°57°79°——
199586°46°66°——
199497°58°77°——
199389°59°74°——
199296°55°76°——
199198°63°80°——
199095°59°77°——
1989warmest106°88°97°——
198898°59°79°——
198796°55°76°——
198697°70°83°——
1985106°72°89°——
198498°62°80°——
1983101°55°78°——
1982102°66°84°——
1981102°64°83°——
198097°57°77°——
197981°40°60°——
197897°61°79°——
197793°55°74°——
197695°60°78°——
197583°51°67°0.03"—
197496°63°79°——
197384°56°70°——
197294°60°77°——
197195°55°75°——
56 years of data from ST. GEORGE 15 NE

Saint George, UT Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

20°40°60°80°100°JFMAMJJASOND
Avg high Avg low

Saint George, UT Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"0.2"0.3"JFMAMJJASOND1.8"0"
Rain (in) Snow (in)

Saint George, UT Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Saint George, UT

Most pleasant months in Saint George, UT: April, May, October.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

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