TODAY JUN20
TEMPERATURE75
HUMIDITY89
PRESSURE29.91
WIND COND.80 4.7
  • 7462Wed40%50%
  • 7260Thu50%50%
  • 6857Fri60%40%
  • 7560Sat20%
  • 7858Sun20%
daynightWeather update from Monticello Municipal at

Delaware Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-22°F54°F23°Fn/a
February-18°F61°F22°Fn/a
March-2°F79°F37°Fn/a
April18°F88°F50°Fn/a
May27°F91°F60°Fn/a
June43°F95°F71°Fn/a
July46°F97°F73°Fn/a
August48°F97°F71°Fn/a
September32°F91°F63°Fn/a
October21°F90°F50°Fn/a
November5°F73°F38°Fn/a
December-18°F55°F24°Fn/a

Did you know?

  • The highest monthly average temperature in Delaware for July is 73 degrees.
  • The lowest monthly average temperature in Delaware for February is 22 degrees.
  • The most monthly precipitation in Delaware occurs in January with 0 inches.
  • The air quality index in Delaware is 15% better than the national average.
  • The pollution index in Delaware is 88% better than the national average.

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Compare Delaware, IA Weather To Other Cities

Delaware air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexDelawareIowaNational
Air quality index423950
Pollution index586,1751,643,8365,066,862

Delaware air quality information

MeasurementTotal
Days measured365
Days with good air quality256
Days with moderate air quality108
Days w/ poor A.Q. for sensitive groups1
Days with unhealthy air quality

Delaware air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.090%
Mercury0.000%

Average monthly Delaware temperature with heat index

Delaware monthly precipitation with daily maximum

Delaware monthly snow depth with daily maximum

Delaware monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Colesburg, IA4623236%
Luxemburg, IA2033236%
Edgewood, IA7953236%
Greeley, IA2793236%
Worthington, IA4203236%
Delaware, IA1334216%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lakeview, AL1333628%
Kendall, WA1332746%
Loco, OK1334314%
Heckscherville, PA1334314%
Centerville, NC1333432%
Delaware, IA1334216%
Source: The Delaware, IA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.