Best year time to visit Borough of Mountainside

General weather information about Borough of Mountainside

Average annual temperature is 13.0 °C

Absolute maximum temperature: 35.7 °C

Absolute minimum temperature: -15.7 °C

Number of sunny days: 173 days

Number of rainy days: 189 days

Number of snow days: 3 days

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* Weather data for Borough of Mountainside United States is based on climate observations for 2026 year

Borough of Mountainside air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.919.916.432.030.833.534.731.535.728.420.016.2
Average daytime temperature (°C)8.98.610.719.022.426.330.428.124.919.811.59.2
Average temperature (°C)4.83.55.212.816.020.224.622.919.814.56.45.0
Average night temperature (°C)1.4-0.90.77.79.915.119.918.615.810.42.21.6
Absolute minimum temperature (°C)-4.0-15.7-4.30.44.29.616.215.39.45.7-4.6-5.2

Borough of Mountainside monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.711.913.314.415.014.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.46.77.48.611.910.111.510.17.87.77.45.0
Precipitation (mm)12649114129429918211022110074219
Sunny days141812142010101211171817
Rainy days17818161120211919141214
Snow days021000000000

Borough of Mountainside - weather forecast by months

Borough of Mountainside weather in januaryBorough of Mountainside weather in februaryBorough of Mountainside weather in marchBorough of Mountainside weather in aprilBorough of Mountainside weather in mayBorough of Mountainside weather in juneBorough of Mountainside weather in julyBorough of Mountainside weather in augustBorough of Mountainside weather in septemberBorough of Mountainside weather in octoberBorough of Mountainside weather in novemberBorough of Mountainside weather in december

Best time to visit Borough of Mountainside:

The best time to visit Borough of Mountainside during the most sunny months:

  • May — 11.9(h)
  • July — 11.5(h)

The largest precipitation sum in Borough of Mountainside is at

  • July — 182(mm)
  • September — 221(mm)
  • December — 219(mm)

    • Weather forecast in the closest to Borough of Mountainside admin centers

    Weather forecast in the closest towns to Borough of Mountainside

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    Frequently asked questions

    When is the best time to visit Borough of Mountainside?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Borough of Mountainside.
    What is the weather like in Borough of Mountainside?
    See average temperature, rainfall and daylight hours for Borough of Mountainside by month in the table above.
    How many sunny days does Borough of Mountainside have?
    The monthly weather statistics above show sunshine and rainfall patterns for Borough of Mountainside throughout the year.