TODAY DEC13
TEMPERATURE66
HUMIDITY64
PRESSURE30.26
WIND COND.
  • 6147Fri40%60%
  • 5838Sat20%
  • 5333Sun
  • 5235Mon
  • 5537Tue20%30%
daynightWeather update from Merced / Castle Air Force Base at
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Hilmar-Irwin Average Temperature

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
January38°F58°F47°F2.4"
February42°F64°F52°F1.9"
March46°F70°F57°F1.7"
April49°F76°F61°F1.3"
May54°F85°F69°F0.4"
June60°F93°F76°F0.2"
July64°F98°F80°F0.0"
August63°F96°F78°F0.0"
September59°F91°F74°F0.1"
October52°F80°F64°F0.7"
November44°F68°F54°F1.1"
December38°F58°F47°F2.3"

Did you know?

  • The highest monthly average temperature in Hilmar-Irwin for July is 80 degrees.
  • The lowest monthly average temperature in Hilmar-Irwin for January is 47 degrees.
  • The most monthly precipitation in Hilmar-Irwin occurs in January with 2.4 inches.
  • The air quality index in Hilmar-Irwin is 11% worse than the national average.
  • The pollution index in Hilmar-Irwin is 53% worse than the national average.

Compare Hilmar-Irwin, CA Weather To Other Cities

Hilmar-Irwin 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.
IndexHilmar-IrwinCaliforniaNational
Air quality index555550
Pollution index7,774,44018,106,7265,066,862

Hilmar-Irwin air quality information

MeasurementTotal
Days measured365
Days with good air quality164
Days with moderate air quality145
Days w/ poor A.Q. for sensitive groups45
Days with unhealthy air quality11

Hilmar-Irwin air quality information

PollutantTotal
Arsenic0.030%
Benzene0.090%
Carbon Tetrachloride0.000%
Lead0.050%
Mercury0.040%

Average monthly Hilmar-Irwin temperature with heat index

Hilmar-Irwin monthly precipitation with daily maximum

Hilmar-Irwin monthly snow depth with daily maximum

Hilmar-Irwin monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Winton, CA11,309548%
Atwater, CA28,906548%
Delhi, CA10,968548%
Stevinson, CA243548%
Ballico, CA318548%
Hilmar-Irwin, CA5,2505510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mount Arlington, NJ5,2513922%
Nelsonville, OH5,2493334%
Centerport, NY5,251476%
Preston, ID5,252476%
Bluefield, VA5,254295490%
Hilmar-Irwin, CA5,2505510%
Source: The Hilmar-Irwin, CA 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.
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