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Weather on August 18

Deltona, FL

55 Years of Data

Avg High
93°F
Avg Low
74°F
Warmest
2026
89°F avg
Coldest
1993
79°F avg

About This Date

August 18th in Deltona, FL typically brings hot summer weather, with average highs around 93°F and lows near 74°F. Over 56 years of records, the warmest August 18th was in 2026 (89°F average), while the coldest was 1993 (79°F) — a 10°F range across recorded history. Rain or other precipitation has occurred on about 48% of August 18th dates historically, with the wettest August 18th recording 1.3" of rain. 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 August 18th in Deltona, FL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Warming Trend
0.4°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest98°81°89°
202593°74°83°0.23"
202492°74°83°
202393°76°84°
202290°75°82°
202195°76°85°
202090°76°83°0.37"
201993°75°84°
201894°75°84°
201796°75°86°0.01"
201693°77°85°0.1"
201593°74°83°1.3"
201494°74°84°
201393°77°85°0.03"
201288°74°81°0.04"
201193°74°83°
201095°78°87°
200991°78°85°0.05"
200890°74°82°0.01"
200794°72°83°0.02"
200694°73°83°
200598°78°88°
200493°76°84°0.53"
200394°76°85°0.03"
200293°74°83°0.66"
200194°76°85°0.01"
200093°70°81°
199991°70°80°
199895°73°84°
199794°77°85°0.01"
199690°74°82°0.25"
199596°76°86°
199492°72°82°0.47"
1993coldest93°65°79°
199292°69°80°1"
199193°74°83°
199094°72°83°
198993°72°82°
198889°71°80°0.01"
198795°74°84°
198693°75°84°0.25"
198594°74°84°
198492°76°84°
198390°71°80°0.02"
198289°71°80°0.02"
198190°76°83°0.05"
198098°78°88°0.06"
197991°71°81°
197893°73°83°
197791°73°82°0.09"
197691°71°81°0.52"
197593°72°82°
197494°72°83°
197392°71°81°0.03"
197295°70°82°
197197°73°85°
56 years of data from SANFORD

Deltona, FL Temperature Range by Month

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

40°50°60°70°80°90°100°JFMAMJJASOND
Avg high Avg low

Deltona, FL Monthly Precipitation

Average rainfall per month, in inches.

0"0.2"0.5"JFMAMJJASOND
Rain (in)

Deltona, FL 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 Deltona, FL

Most pleasant months in Deltona, FL: January, February, March, April, November, December.

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

What to expect on August 18th

This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.

August 18th outlook →

Browse Weather History

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

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