TODAY DEC22
TEMPERATURE29
HUMIDITY41
PRESSURE103080
WIND COND.340 20.5
  • 3325Mon
  • 4530Tue30%
  • 4129
  • 4130Thu
  • 4434Fri
daynightWeather update from Hagerstown, Washington County Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in St. James for July is 76.1 degrees
  • The lowest monthly average temperature in St. James for February is 30.3 degrees
  • The most monthly precipitation in St. James occurs in August with 8.4 inches
  • The air quality index in St. James is 5% better than the national average
  • The pollution index in St. James is 495% worse than the national average

Compare St. James, MD Weather

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      St. James 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
      January27°F42°F34°F3.7"
      February22°F39°F30°F2.4"
      March31°F51°F40°F6.5"
      April41°F64°F52°F5.9"
      May50°F74°F62°F3.6"
      June62°F84°F73°F4.8"
      July65°F87°F76°F6.4"
      August66°F86°F75°F8.4"
      September58°F81°F70°F3.6"
      October50°F69°F59°F5.5"
      November36°F55°F45°F4.8"
      December26°F40°F33°F5.1"

      St. James 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.
      IndexSt. JamesMarylandNational
      Air quality index404342
      Pollution index16,230,7005,342,3672,726,193

      St. James air quality

      MeasurementTotal
      Days measured362
      Days with good air quality306
      Days with moderate air quality54
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.130%
      Carbon Tetrachloride0.090%
      Lead0.080%
      Mercury0.020%

      Average monthly St. James temperature with heat index

      St. James monthly precipitation with daily maximum

      St. James monthly snow depth with daily maximum

      St. James monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fairview, MD164020.0%
      Breathedsville, MD2814020.0%
      Fairplay, MD4704020.0%
      Mercersville, MD1884020.0%
      Bagtown, MD4004020.0%
      St. James, MD3,5674020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Copperopolis, CA3,5663922.0%
      Beaver Dam, KY3,5664314.0%
      Golf Manor, OH3,566548.0%
      Cowichan Valley D, BC3,569n/a 
      Indianola, WA3,5644510.0%
      St. James, MD3,5674020.0%
      Source: The St. James, MD 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.