TODAY JUN20
TEMPERATURE81
HUMIDITY74
PRESSURE29.79
WIND COND.180 12.8
  • 7561Thu30%50%
  • 7459Fri50%20%
  • 8163Sat60%
  • 8164Sun50%
  • 8167Mon30%30%
daynightWeather update from Lamoni, Lamoni Municipal Airport at

Grand River 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-14°F63°F25°F0.8"
February-8°F64°F27°F1.2"
March5°F80°F41°F2.6"
April16°F88°F51°F4.5"
May31°F90°F62°F4.8"
June52°F95°F71°F5.9"
July48°F99°F75°F3.0"
August46°F97°F74°F5.4"
September34°F90°F65°F2.8"
October23°F88°F52°F3.7"
November9°F75°F42°F1.8"
December-8°F61°F26°F1.9"

Did you know?

  • The highest monthly average temperature in Grand River for July is 75 degrees.
  • The lowest monthly average temperature in Grand River for January is 25 degrees.
  • The most monthly precipitation in Grand River occurs in June with 5.9 inches.
  • The air quality index in Grand River is 17% better than the national average.
  • The pollution index in Grand River is 87% better than the national average.

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Compare Grand River, IA Weather To Other Cities

Grand River 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.
IndexGrand RiverIowaNational
Air quality index413950
Pollution index648,8291,643,8365,066,862

Grand River air quality information

MeasurementTotal
Days measured365
Days with good air quality267
Days with moderate air quality98
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Grand River air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.002%
Mercury0.000%

Average monthly Grand River temperature with heat index

Grand River monthly precipitation with daily maximum

Grand River monthly snow depth with daily maximum

Grand River monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Davis City, IA2084118%
Lamoni, IA2,6164118%
Sun Valley Lake, IA2244118%
Weldon, IA1814118%
Afton, IA9674118%
Grand River, IA2274118%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pawnee Rock, KS227688%
Basin, MT2273530%
Birmingham, MO2275816%
Henderson, IL2275510%
Albion, CA2272648%
Grand River, IA2274118%
Source: The Grand River, 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.