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Jamesburg, NJ weather and climate

Middlesex County, NJ · population 5,763 · about 85 ft elevation

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

The year at a glance

Sunny days
201
clear or partly cloudy, per year
Precipitation
44 in
per year
Wet days
121
rain or snow per year
Snowfall
24 in
per year
Hot days
25
above 90 °F
Freezing nights
111
at or below 32 °F
Humidity
69%
average relative
Average temperature
54 °F
year round

Monthly temperatures

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

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 41 °FDaily high, Feb: 43 °FDaily high, Mar: 51 °FDaily high, Apr: 63 °FDaily high, May: 72 °FDaily high, Jun: 81 °FDaily high, Jul: 87 °FDaily high, Aug: 85 °FDaily high, Sep: 78 °FDaily high, Oct: 67 °FDaily high, Nov: 56 °FDaily high, Dec: 46 °FDaily low, Jan: 22 °FDaily low, Feb: 24 °FDaily low, Mar: 31 °FDaily low, Apr: 40 °FDaily low, May: 50 °FDaily low, Jun: 59 °FDaily low, Jul: 65 °FDaily low, Aug: 63 °FDaily low, Sep: 55 °FDaily low, Oct: 44 °FDaily low, Nov: 35 °FDaily low, Dec: 28 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high414351637281878578675646
Daily low222431405059656355443528

Monthly precipitation

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

0.02.04.0JanMarMayJulSepNovJamesburg, Jan: 3.2 inJamesburg, Feb: 3.0 inJamesburg, Mar: 4.2 inJamesburg, Apr: 3.5 inJamesburg, May: 3.4 inJamesburg, Jun: 4.0 inJamesburg, Jul: 4.2 inJamesburg, Aug: 4.2 inJamesburg, Sep: 3.7 inJamesburg, Oct: 3.6 inJamesburg, Nov: 2.9 inJamesburg, Dec: 4.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Jamesburg3.23.04.23.53.44.04.24.23.73.62.94.0

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovJamesburg, Jan: 17 daysJamesburg, Feb: 15 daysJamesburg, Mar: 16 daysJamesburg, Apr: 15 daysJamesburg, May: 16 daysJamesburg, Jun: 16 daysJamesburg, Jul: 18 daysJamesburg, Aug: 19 daysJamesburg, Sep: 18 daysJamesburg, Oct: 19 daysJamesburg, Nov: 17 daysJamesburg, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Jamesburg171516151616181918191716

Compare Jamesburg 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).