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Lake Hiawatha, NJ weather and climate

Morris County, NJ · population 10,406 · about 295 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Lake Hiawatha's own coordinates.

The year at a glance

Sunny days
194
clear or partly cloudy, per year
Precipitation
47 in
per year
Wet days
127
rain or snow per year
Snowfall
31 in
per year
Hot days
16
above 90 °F
Freezing nights
122
at or below 32 °F
Humidity
71%
average relative
Average temperature
52 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 38 °FDaily high, Feb: 40 °FDaily high, Mar: 48 °FDaily high, Apr: 61 °FDaily high, May: 71 °FDaily high, Jun: 81 °FDaily high, Jul: 85 °FDaily high, Aug: 84 °FDaily high, Sep: 76 °FDaily high, Oct: 64 °FDaily high, Nov: 53 °FDaily high, Dec: 42 °FDaily low, Jan: 21 °FDaily low, Feb: 22 °FDaily low, Mar: 29 °FDaily low, Apr: 39 °FDaily low, May: 49 °FDaily low, Jun: 59 °FDaily low, Jul: 64 °FDaily low, Aug: 62 °FDaily low, Sep: 55 °FDaily low, Oct: 42 °FDaily low, Nov: 33 °FDaily low, Dec: 26 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high384048617181858476645342
Daily low212229394959646255423326

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovLake Hiawatha, Jan: 3.5 inLake Hiawatha, Feb: 3.1 inLake Hiawatha, Mar: 4.3 inLake Hiawatha, Apr: 3.8 inLake Hiawatha, May: 3.9 inLake Hiawatha, Jun: 4.2 inLake Hiawatha, Jul: 4.3 inLake Hiawatha, Aug: 4.0 inLake Hiawatha, Sep: 4.5 inLake Hiawatha, Oct: 4.1 inLake Hiawatha, Nov: 3.3 inLake Hiawatha, Dec: 4.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Hiawatha3.53.14.33.83.94.24.34.04.54.13.34.1

Monthly sunny days

Days each month with clear or partly cloudy skies.

051015JanMarMayJulSepNovLake Hiawatha, Jan: 16 daysLake Hiawatha, Feb: 15 daysLake Hiawatha, Mar: 16 daysLake Hiawatha, Apr: 15 daysLake Hiawatha, May: 15 daysLake Hiawatha, Jun: 15 daysLake Hiawatha, Jul: 18 daysLake Hiawatha, Aug: 17 daysLake Hiawatha, Sep: 17 daysLake Hiawatha, Oct: 18 daysLake Hiawatha, Nov: 16 daysLake Hiawatha, Dec: 15 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Hiawatha161516151515181717181615

Compare Lake Hiawatha with another city

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About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).